CN-122013973-A - Self-locking type orientation wheel for movable operation platform and application method thereof

CN122013973ACN 122013973 ACN122013973 ACN 122013973ACN-122013973-A

Abstract

The invention discloses a self-locking type directional wheel for a movable operation platform and a use method thereof, relating to the technical field of mechanical engineering, the self-locking type directional wheel for the movable operation platform comprises platform column feet arranged at the bottom of the movable operation platform, each platform column foot bottom is provided with a self-locking type directional wheel structure, the outside of the self-locking type directional wheel structure is provided with an auxiliary supporting structure, the invention provides a device for automatically realizing locking and unlocking through the change of the vertical load of the platform, the automatic locking device does not need manual operation, fundamentally eliminates the illegal actions such as forgetting to lock, illegal unlocking, moving a platform with people and the like, greatly reduces the operation safety accident rate at high places, has no any electric element, can be adapted to severe environments such as high temperature, dust emission, water spraying and the like at construction sites, has low continuous failure rate and long period, has stability far superior to an electric locking wheel, is matched with an auxiliary support for synchronous unfolding by self-locking of the directional wheel, is anti-skidding when a supporting foot falls to the ground, and remarkably improves the anti-overturning capability and the overall stability when the platform is parked.

Inventors

LUO FENG
JIANG HONGBO
LI CHUNZHI
Lv Binying
ZHANG JIAN
LIU YUAN

Assignees

罗锋

Dates

Publication Date: 20260512
Application Date: 20260409

Claims (10)

1. The self-locking type directional wheel for the movable operation platform comprises platform column bases (1) arranged at the bottoms of the movable operation platform (6), and is characterized in that the bottom of each platform column base (1) is provided with a self-locking type directional wheel structure (4), and an auxiliary supporting structure (5) is arranged outside the self-locking type directional wheel structure (4); The self-locking type directional wheel structure (4) comprises a main cylinder body (41) fixed at the bottom of a platform column base (1), a telescopic groove is formed in the bottom of the main cylinder body (41), an auxiliary cylinder body (46) is coaxially inserted into the telescopic groove, a limiting ring (461) is fixed at the outer middle part of the auxiliary cylinder body (46), a strong spring (48) is arranged between the limiting ring (461) and the inner top of the main cylinder body (41), the strong spring (48) is sleeved at the upper part of the auxiliary cylinder body (46), a limiting threaded sleeve (47) is sleeved outside the auxiliary cylinder body (46), the limiting threaded sleeve (47) is in threaded connection with the bottom of the telescopic groove and is in matched limiting with the limiting ring (461), a bracket (45) is fixed at the bottom of the auxiliary cylinder body (46), a tire (44) is connected with a rotating shaft at the inner lower part of the bracket (45), two groups of braking connecting pieces (42) are symmetrically fixed at the outer lower part of the main cylinder body (41), a braking piece structure (43) is fixedly arranged at the bottom of the two groups of braking connecting pieces, and the braking piece structure (43) is positioned inside the bracket (45) and is matched with the tire (44) to brake to be limited; The auxiliary supporting structure (5) comprises a first connecting sleeve (51) sleeved and fixed at the middle part of the main cylinder body (41) and a second connecting sleeve (53) sleeved and fixed at the lower part of the auxiliary cylinder body (46), two groups of supporting plates (52) are symmetrically fixed at two sides of the first connecting sleeve (51), a connecting seat (522) is fixed at the bottom of the supporting plates (52), a rotating shaft is rotatably connected to the connecting seat (522), a transmission gear (58) is fixed at the middle part of the rotating shaft, transmission plates (55) are fixed at two sides of the rotating shaft, one end of each transmission plate (55) far away from the transmission gear (58) is connected with a supporting foot (56), a movable groove (521) is formed in one side of the supporting plates (52) facing the directional wheel and is communicated with the connecting seat (522), sliding plates (57) are connected in the movable groove (521), racks (571) are arranged at the lower parts of the sliding plates (57) and are meshed with the transmission gears (58), two groups of the two connecting sleeves (53) are symmetrically connected with the two groups of the connecting plates (54) through the rotating shaft seats, and the top ends of the two groups of the connecting plates (54) are hinged to the upper parts of the two sliding plates (57).
2. The self-locking directional wheel for a movable operating platform according to claim 1, wherein the brake pad structure (43) comprises an arc-shaped plate (433), a brake pad (431) is fixed on the inner side of the arc-shaped plate (433), threaded posts (432) are fixed on two sides of the top of the arc-shaped plate (433), and the threaded posts (432) penetrate through the brake connecting piece (42) and are fixed through a nut set.
3. The self-locking directional wheel for a movable operating platform according to claim 2, wherein the brake pad (431) is made of wear-resistant rubber or metal.
4. The self-locking directional wheel for a movable operation platform according to claim 1, wherein the bottom surface of the supporting plate (52) and the top surface of the tire (44) have a height difference, the transmission plate (55) is turned downwards and then is vertical to the ground, and the supporting feet (56) are flush and fit with the ground.
5. A self-locking orienting wheel for mobile platforms according to claim 1, wherein said drive plate (55) is reversible 180 ° under the drive of a drive gear (58) for switching between support deployment and stowage.
6. The self-locking directional wheel for a movable operation platform according to claim 1, wherein side sliding grooves (5211) are formed in two inner side walls of the movable groove (521), and sliding blocks are fixed at two side ends of the sliding plate (57) and inserted into the side sliding grooves (5211) to limit sliding.
7. The self-locking directional wheel for a movable operation platform according to claim 1, wherein the bottom of the transmission plate (55) is provided with a connecting groove, the supporting leg (56) is rotatably installed in the connecting groove through a rotating shaft, and a torsion spring (59) is installed on the rotating shaft to elastically support and limit the supporting leg (56).
8. The self-locking directional wheel for a movable operation platform according to claim 7, wherein a rubber pad is fixed at the bottom of the supporting leg (56), and the surface of the rubber pad is provided with concave-convex anti-slip textures.
9. The self-locking directional wheel for the movable operation platform according to claim 1, wherein a protective fence (3) is fixed at the top of the movable operation platform (6), and a cat ladder (2) is fixedly arranged on the front surface of the movable operation platform (6).
10. The self-locking type orientation wheel for the movable operation platform and the use method thereof are characterized by comprising the following steps: S1, moving preparation, namely pushing a movable operation platform (6) to a target position, wherein in the moving process, a secondary cylinder body (46) keeps an extending state under the action of a strong spring (48), and a tire (44) is unlocked, so that the platform can move flexibly; S2, self-locking braking, namely after reaching a designated position, an operator enters the movable operation platform (6) through the crawling ladder (2), when vertical load is generated, the load is transmitted to the main cylinder body (41) and compresses the powerful spring (48), the auxiliary cylinder body (46) is retracted upwards relative to the main cylinder body (41), the tire (44) moves upwards along with the auxiliary cylinder body and is tightly attached to the brake sheet structure (43), and the brake sheet (431) forms friction braking on the tire (44) to realize self-locking limiting of the directional wheel; S3, auxiliary support expansion, namely, when the auxiliary cylinder body (46) moves upwards, the second connecting sleeve (53) is driven to synchronously rise, the sliding plate (57) is pulled to slide upwards along the movable groove (521) through the linkage plate (54), the rack (571) at the lower part of the sliding plate (57) drives the transmission gear (58) to rotate, and then the transmission plate (55) is driven to overturn and expand, so that the supporting legs (56) are downwards attached to the ground, an auxiliary support is formed, and the platform parking stability is improved; S4, resetting, namely when the platform needs to be moved again, an operator leaves the movable operation platform (6), the powerful spring (48) rebounds, the powerful spring (48) pushes the auxiliary cylinder body (46) to extend downwards, the tire (44) breaks away from the brake piece structure (43) to release braking, meanwhile, the second connecting sleeve (53) moves downwards, the sliding plate (57) is pushed to slide downwards through the linkage plate (54), the transmission plate (55) is driven to overturn and retract through gear-rack transmission, the supporting legs (56) are separated from the ground, and the platform moving function is restored.

Description

Self-locking type orientation wheel for movable operation platform and application method thereof Technical Field The invention relates to the technical field of mechanical engineering, in particular to a self-locking type directional wheel for a movable operation platform and a use method thereof. Background Along with the development of high-rise and complicated construction engineering, the traditional fixed scaffold and temporary erection operation frame have obvious defects of complex erection and dismantling procedures, large labor quantity, low turnover efficiency and difficulty in adapting to rapidly-changed construction working surfaces, and meanwhile, the temporary frame body has poor stability, imperfect protection and higher safety risk of high-altitude operation. In order to meet the requirements of high-efficiency construction, compact construction period, narrow space operation and strict safety management of modern engineering, the movable, turnover and standardized movable operation platform is gradually popularized and applied. However, the movable operation platform has become a high-rise facility for high-rise operation safety accidents in practical engineering applications. The safety awareness of field operators is weak, the illegal operation phenomenon is more prominent, part of operators are covet, the construction is convenient, the safety operation rules are violated, the platform is directly pushed to shift under the condition that the operators do not leave the operation platform, and safety accidents such as overturning and falling are extremely easy to cause. The existing directional wheel self-locking of the movable operation platform is mainly in an active locking mode such as manual buckling, pedal locking, electric control and the like, manual active operation is needed, forgetting locking and illegal unlocking are easy to occur, such as a universal castor convenient for directional movement disclosed by application number CN202321272077.5, a universal castor with steering locking disclosed by application number CN201620755185.1 and the like, all adopt active locking modes such as pedal locking and buckle locking and the like, manual operation is needed, forgetting locking and locking are easy to occur, illegal unlocking is convenient for drawing and the like, and potential safety hazards cannot be radically stopped; The electric type further comprises electric elements, has poor adaptability and high failure rate under severe environments such as high temperature, dust emission, water spraying and the like in construction, and cannot fundamentally solve potential safety hazards caused by illegal operation. Disclosure of Invention The invention provides a self-locking type directional wheel for a movable operation platform and a use method thereof, which solve the technical problems. In order to solve the technical problems, the self-locking directional wheel for the movable operation platform and the application method thereof provided by the invention adopt a pure mechanical structure which cancels the steering assembly and triggers the automatic self-locking by load, do not need manual operation and no electric element, can adapt to the severe environment of building construction, simplify the structure, reduce the cost and improve the assembly and maintenance efficiency. As the self-locking type directional wheel for the movable operation platform and the application method thereof, the invention adopts the preferable technical scheme that the self-locking type directional wheel for the movable operation platform comprises platform column feet arranged at the bottom of the movable operation platform, the bottom of each platform column foot is provided with a self-locking type directional wheel structure, and the outside of the self-locking type directional wheel structure is provided with an auxiliary supporting structure. On the basis of the technical scheme, in order to achieve simplification of the directional wheel structure, reduction of parts, reduction of cost and improvement of assembly efficiency, the self-locking directional wheel structure comprises a main cylinder body fixed at the bottom of a column foot of a platform, a telescopic groove is formed in the bottom of the main cylinder body, an auxiliary cylinder body is coaxially inserted into the telescopic groove, a limiting ring is fixed in the middle of the outer part of the auxiliary cylinder body, a powerful spring is arranged between the limiting ring and the top in a main cylinder body, the powerful spring is sleeved on the upper part of the auxiliary cylinder body, a limiting threaded sleeve is sleeved on the outer part of the auxiliary cylinder body, the limiting threaded sleeve is in threaded connection with the bottom of the telescopic groove and is in matched limiting with the limiting ring, a bracket is fixed at the bottom of the auxiliary cylinder body, a rotating shaft at the lower part in the