Rescue device for stuck travel wheels in confined spaces

Abstract

The application provides a rescue device for stuck running wheels in a limited space, which is used for installing on a running wheel of a crown block to assist in moving; the rescue device comprises a moving seat and a plurality of combined parts, the plurality of combined parts are fixedly connected with the moving seat after being combined with each other, and form a containing area for containing the running wheel; a first moving wheel is arranged on the moving seat, and the first moving wheel is in contact with a bottom end surface in the crown track after the rescue device is installed on the running wheel through the containing area. In this way, the rescue device is installed on the stuck running wheel to assist in moving, so that the trolley is carried to a repair station, and the fault handling efficiency is improved.

Description

Technical Field

[0001] This application belongs to the technical field of overhead crane rescue devices, specifically relating to a rescue device for a stuck traveling wheel in a confined space. Background Technology

[0002] Currently, semiconductor workshops use OHT overhead cranes to transport wafer cassettes during the manufacturing process. The cranes travel on overhead tracks, and the gap between the running wheels and the running tracks is very narrow. There is only about 10mm of space between the wheels and the side rails. If a component malfunctions and causes the running wheels to jam, personnel will be unable to push the trolley to the maintenance station, making crane maintenance difficult. Utility Model Content

[0003] This application provides a rescue device for stuck traveling wheels in confined spaces, in order to improve the efficiency of handling traveling wheel failures of overhead cranes.

[0004] In a first aspect, this application provides a rescue device for a stuck traveling wheel in a confined space, which is used to assist in movement when installed on the traveling wheel of an overhead crane; the rescue device includes a movable base and multiple assemblies, which are combined with each other and fixedly connected to the movable base to form a receiving area for accommodating the traveling wheel; The mobile seat is equipped with a first moving wheel. After the rescue device is installed on the running wheel through the receiving area, the first moving wheel contacts the bottom surface inside the ceiling track.

[0005] In conjunction with the first aspect, in one possible embodiment, the plurality of assemblies includes a first assembly and a second assembly; the first assembly is slidably connected to one end of the movable seat away from the bottom end face, and the second assembly is fixedly connected to one end of the movable seat near the bottom end face; the first assembly and the second assembly are fixedly connected to form the receiving area; or, the plurality of assemblies further includes the third assembly, and the first assembly and the second assembly are rotatably connected through the third assembly to form the receiving area.

[0006] In conjunction with the first aspect, in one possible embodiment, the first assembly is provided with a first connecting portion, and the movable seat is provided with a second connecting portion; a fixing mechanism is connected to the first connecting portion and the second connecting portion, the fixing mechanism being used to fix the first connecting portion to the second connecting portion at any position along the sliding stroke of the first connecting portion and the second connecting portion.

[0007] In conjunction with the first aspect, in one possible embodiment, the first assembly is further provided with a limiting wheel, which restricts the running wheel within the receiving area after the rescue device is installed on the running wheel through the receiving area.

[0008] In conjunction with the first aspect, in one possible embodiment, the first assembly is further provided with a limiting member that restricts the running wheel within the receiving area after the rescue device is installed on the running wheel through the receiving area.

[0009] In conjunction with the first aspect, in one possible embodiment, the plurality of assemblies further includes a fourth assembly, which is fixedly connected to the first assembly via the limiting member, and the fourth assembly is connected to a sliding wheel that contacts the side wall inside the ceiling track.

[0010] In conjunction with the first aspect, in one possible embodiment, the second assembly is connected to a support wheel. After the rescue device is installed on the running wheel through the receiving area, the support wheel and the support portion together support the running wheel and confine the running wheel within the receiving area.

[0011] In conjunction with the first aspect, in one possible embodiment, the second assembly is connected to a second movable wheel, which contacts the bottom surface of the ceiling track after the rescue device is mounted on the running wheel through the receiving area.

[0012] In conjunction with the first aspect, in one possible embodiment, a third moving wheel and a blocking member are rotatably connected to one end of the movable seat near the bottom surface; after the rescue device is installed on the running wheel through the receiving area, the third moving wheel contacts the bottom surface within the ceiling track, and the blocking member is used to rotate to the side of the running wheel via a rotating structure of the movable seat.

[0013] In conjunction with the first aspect, in one possible embodiment, the movable seat includes a support portion whose shape is adapted to the outer contour of the running wheel.

[0014] As can be seen, the rescue device for stuck traveling wheels in confined spaces provided in this application includes a movable base and multiple assemblies. These assemblies are assembled together and fixedly connected to the movable base to form a receiving area for accommodating the traveling wheels. A first movable wheel is provided on the movable base. When the rescue device is installed on the traveling wheel through the receiving area, the first movable wheel contacts the bottom surface of the overhead rail. Thus, by installing the rescue device on the stuck traveling wheel for assisted movement, the trolley can be transported to the maintenance station, improving the efficiency of handling overhead crane traveling wheel malfunctions. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the first type of rescue device for wheel jamming in confined spaces provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of a second type of rescue device for wheel jamming in confined spaces, provided in an embodiment of this application; Figure 3 This is a schematic diagram of the third type of rescue device for wheel jamming in confined spaces provided in the embodiments of this application; Figure 4 This is a schematic diagram of the fourth type of rescue device for wheel jamming in confined spaces provided in the embodiments of this application; Figure 5 This is a schematic diagram of the fifth type of rescue device for wheel jamming in confined spaces provided in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the movable seat provided in the embodiment of this application; Figure 7 This is a schematic diagram of the structure of the first assembly provided in the embodiments of this application; Figure 8 This is a schematic diagram of the structure of the second assembly provided in the embodiments of this application; Figure 9 This is a schematic diagram of the structure of the third assembly provided in the embodiments of this application; Figure 10 This is a schematic diagram of the structure of the fourth assembly provided in the embodiments of this application. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0018] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, systems, products, or apparatuses.

[0019] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0020] The following is a brief introduction to the relevant terminology used in this application.

[0021] Overhead Hoist Transport (OTHT): An automated transport system that slides along elevated tracks and uses belt-driven lifting components to "directly" enter the loading port of processing equipment. This is widely considered the primary transport system for 300mm FAB (Fabrication Plant) and next-generation FABs. The overhead cranes can be equipped with front-opening unified boxes (FOUPs) for efficient process and inventory management. Currently, it is used not only for direct transport of wafer boxes from tool to tool, tool to buffer, and buffer to tool, but also for inter-area transport and transport across areas or within the plant.

[0022] Currently, semiconductor workshops use OHT overhead cranes to transport wafer cassettes during the manufacturing process. The cranes travel on overhead tracks, and the gap between the running wheels and the running tracks is very narrow. There is only about 10mm of space between the wheels and the side rails. If a component malfunctions and causes the running wheels to jam, personnel will be unable to push the trolley to the maintenance station, making crane maintenance difficult.

[0023] To address the aforementioned problems, this application provides a rescue device for stuck overhead crane wheels in confined spaces. This rescue device can be applied to scenarios where overhead crane wheels are stuck. The device includes a movable base and multiple assemblies. These assemblies are combined and fixedly connected to the movable base to form a receiving area for accommodating the wheel. A first movable wheel is provided on the movable base. When the rescue device is installed on the wheel through the receiving area, the first movable wheel contacts the bottom surface of the overhead rail. Thus, by installing the rescue device on the stuck wheel for assisted movement, the trolley can be transported to the maintenance station, improving the efficiency of handling overhead crane wheel malfunctions. This solution is applicable to various scenarios, including but not limited to the applications mentioned above.

[0024] The specific structure will be described in detail below.

[0025] The OHT crane's traveling wheels are powered by a motor and reducer, which outputs power to the wheel's spindle, driving the wheels to rotate and allowing the crane to move along the overhead track. However, in this system, if the motor or reducer fails due to age, the traveling wheels may jam, rendering the crane immobile. Furthermore, semiconductor workshops operate 24 hours a day; if an OHT crane abnormally stops on the track, it will block the path of the trolleys behind, causing delays in wafer cassette transport and significantly impacting production efficiency. Additionally, the OHT crane's traveling wheels move within the confined space of the overhead track, with a very narrow gap between the wheels and the track, typically around 10mm. In such cases, maintenance personnel cannot repair the wheels on-site; they must push the trolley to a liftable maintenance station and lower it to the ground for repairs.

[0026] Based on this, please refer to Figures 1 to 10 This application also provides a rescue device for a stuck traveling wheel 40 in a confined space, which is used to assist movement when mounted on the traveling wheel 40 of a crane; the rescue device includes a movable base 10 and multiple assemblies, which are combined with each other and fixedly connected to the movable base 10 to form a receiving area for accommodating the traveling wheel 40; a first movable wheel 11 is provided on the movable base 10, and when the rescue device is mounted on the traveling wheel 40 through the receiving area, the first movable wheel 11 contacts the bottom end surface 30 inside the overhead rail.

[0027] In practice, a movable seat 10 and multiple assemblies are set up to form a receiving area that can surround the outer contour of the traveling wheel 40, thereby covering and lifting the traveling wheel 40. The movable wheel of the movable seat 10 replaces the traveling wheel 40 for movement, so that maintenance personnel can use this rescue device to push the overhead crane with the traveling wheel 40 stuck to the ground for maintenance.

[0028] Multiple assemblies are configured as sheets, the thickness of which is less than the gap between the running wheel 40 and the overhead rail, so that the multiple assemblies can extend into the gap and be installed on the running wheel 40.

[0029] It is understandable that the number of traveling wheels 40 is determined according to the shape of the skyrail. Taking a double-track skyrail as an example, the traveling wheels 40 are distributed on both sides of the skyrail. At this time, corresponding rescue devices need to be set on both sides of the track to assist movement. The specific number can be set according to the actual situation and is not limited to a single one here.

[0030] In one possible embodiment, the movable seat 10 includes a support portion 13, the shape of which is adapted to the outer contour of the running wheel 40.

[0031] In a specific implementation, the movable base 10 includes an irregularly shaped main body with a support portion 13. The support portion 13 can be arc-shaped, and its curvature matches the outer contour of the traveling wheel 40, thus allowing it to fit against the surface of the traveling wheel 40, providing support for the traveling wheel 40 and preventing it from shifting towards the movable base 10. Simultaneously, the support portion 13, combined with multiple assemblies, forms a receiving area to accommodate the traveling wheel 40.

[0032] Furthermore, the movable seat 10 can be partially thinned to form a first mounting portion 101 on the irregular body. The first mounting portion 101 is provided with a first through hole 1011, in which a first rotating shaft is installed. A first moving wheel 11 is installed on the rotating shaft so that the movable seat 10 can move through the first moving wheel 11.

[0033] In one example, the heteromorphic object can be a triangular shape from either a first or second perspective. The first perspective refers to the direction in which the running wheel 40 faces the sidewall of the ceiling track when mounted on the running wheel 40; the second perspective refers to the direction in which the sidewall of the ceiling track faces the running wheel 40 when mounted on the running wheel 40. The first mounting portion 101 is provided at the first corner of this triangular shape away from the running wheel 40, and the sides of the triangular shape corresponding to the first corner are made into arcs to obtain the support portion 13.

[0034] It is understandable that the movable seat 10 can be other shapes, such as regular or irregular shapes, and can be adjusted according to the actual situation. No specific limitation is made here.

[0035] As can be seen, in this embodiment, by providing a support part 13 on the movable seat 10 to support the traveling wheel 40, the purpose of fixing the traveling wheel 40 is achieved.

[0036] In one possible embodiment, the movable seat 10 is rotatably connected to a third movable wheel 12 and a blocking member 16 at one end near the bottom end face 30; after the rescue device is installed on the running wheel 40 through the receiving area, the third movable wheel 12 contacts the bottom end face 30 in the ceiling track, and the blocking member 16 is used to rotate to the side of the running wheel 40 by means of the rotating structure of the movable seat 10.

[0037] The above-mentioned triangular behavior will be used as an example for illustration.

[0038] In a specific implementation, a second mounting part 102 is provided on the second corner end of the arc side of the triangular shape and near the bottom end face 30. The second mounting part 102 is also obtained by a thinning process on the second corner end.

[0039] Specifically, a rotating structure is provided on the first end face corresponding to the first viewing angle on the second mounting part 102. The blocking member 16 is rotatably mounted on the rotating structure and can rotate on the rotating structure. When the running wheel 40 is to be accommodated in the accommodating area, the blocking member 16 rotates towards the bottom end face 30 to avoid obstructing the running wheel 40, making it easier for the running wheel 40 to be accommodated in the accommodating area. After installation, the blocking member 16 rotates away from the bottom end face 30 until the blocking member 16 blocks the side of the running wheel 40, so as to cooperate with the first assembly 21 and the second assembly 22 to clamp the running wheel 40 in the accommodating area, ensuring that the running wheel 40 will not fall off when the rescue device moves the vehicle. For example, the blocking member 16 can be a lever, a lever, or other components, or it can be other shapes, as long as it can achieve the blocking function in this embodiment, and is not limited to a single shape.

[0040] Furthermore, a third moving wheel 12 is provided on the second end face corresponding to the second view of the mounting part. The third moving wheel 12 also contacts the bottom end face 30 and together with the first moving wheel 11 realizes the movement function of the rescue device.

[0041] As can be seen, in this embodiment, by adding a third moving wheel 12 to further lift the running wheel 40, the contact between the running wheel 40 and the bottom surface 30 is avoided, which increases the friction and further improves the moving efficiency of the rescue device; at the same time, the addition of the blocking member 16 improves the stability of the running wheel 40 and prevents the running wheel 40 from falling off when the rescue device moves the vehicle.

[0042] In one possible embodiment, the plurality of assemblies includes a first assembly 21 and a second assembly 22; the first assembly 21 is slidably connected to the end of the movable seat 10 away from the bottom end face 30, and the second assembly 22 is fixedly connected to the end of the movable seat 10 near the bottom end face 30; the first assembly 21 and the second assembly 22 are fixedly connected to form the receiving area; or, the plurality of assemblies further includes the third assembly 23, and the first assembly 21 and the second assembly 22 are rotatably connected through the third assembly 23 to form the receiving area.

[0043] Specifically, in one example, the main body of the rescue device is formed by the cyclic connection of the first assembly 21, the second assembly 22, and the movable seat 10 (i.e., the first assembly 21 is connected to the movable seat 10, the movable seat 10 is linked to the second assembly 22, and the second assembly 22 is then connected to the first assembly 21). This forms a containment area that can prevent the traveling wheels 40 from shifting towards the side wall of the overhead rail. When two rescue devices are installed on the traveling wheels 40 on both sides of the overhead rail, the traveling module of the overhead crane can be confined to the middle of the two sides of the rail to cover the traveling module, thereby enabling the traveling module to move.

[0044] The first assembly 21 is connected to the movable seat 10 by a sliding connection, that is, the position of the connection between the first assembly 21 and the movable seat 10 is adjustable. By adjusting the connection position, the size of the accommodating area can be changed. During installation, the accommodating area is enlarged to more easily accommodate the running wheel 40, and after installation, the accommodating area is reduced to fix the running wheel 40.

[0045] Furthermore, in another example, a third assembly 23 can be added to the first assembly 21 and the second assembly 22, forming a connection relationship where "the first assembly 21 connects to the movable base 10, the movable base 10 connects to the second assembly 22, the second assembly 22 connects to the third assembly 23, and the third assembly 23 connects to the first assembly 21." The addition of the third assembly 23 increases the movement space between the first assembly 21 and the second assembly 22, thereby increasing the adjustable range of the accommodating area.

[0046] For example, the first assembly 21 has a twelfth connecting portion 214 at the end away from the first connecting portion 213, the third assembly 23 has a thirteenth connecting portion 231 and a fourteenth connecting portion 232, and the second assembly 22 has a fifteenth connecting portion 224. The twelfth connecting portion 214 is connected to the thirteenth connecting portion 231, and the fourteenth connecting portion 232 is connected to the fifteenth connecting portion 224, so that the first assembly 21, the third assembly 23, and the second assembly 22 are connected sequentially.

[0047] Furthermore, the twelfth connecting portion 214 includes at least one seventh through hole 2141, the thirteenth connecting portion 231 includes at least one eighth through hole 2311, the fourteenth connecting portion 232 includes at least one ninth through hole 2321, and the fifteenth connecting portion 224 includes at least one tenth through hole 2241. When the first assembly 21 is connected to the second assembly 2 or the third assembly 23, at least one seventh through hole 2141 is aligned with at least one tenth through hole 2241 or at least one eighth through hole 2311 and is connected and fixed by corresponding fasteners. When the second assembly 22 is connected to the third assembly 23, at least one tenth through hole 2241 is aligned with at least one ninth through hole 2321 and is connected and fixed by corresponding fasteners. It is understood that, similar to other connecting portions, the twelfth connecting portion 214, the thirteenth connecting portion 231, the fourteenth connecting portion 232, and the fifteenth connecting portion 224 can also be connected by other connection methods, which are not limited to a single method here.

[0048] As can be seen, in this embodiment, the size of the accommodating area can be adjusted by the sliding connection between the first assembly 21 and the movable base 10 to improve installation efficiency. The adjustable range of the accommodating area can also be increased by the third assembly 23 to further improve installation efficiency.

[0049] In one possible embodiment, the first assembly 21 is provided with a first connecting portion 213, and the movable seat 10 is provided with a second connecting portion 14; a fixing mechanism 17 is connected to the first connecting portion 213 and the second connecting portion 14, and the fixing mechanism 17 is used to fix the first connecting portion 213 to the second connecting portion 14 at any position on the sliding stroke of the first connecting portion 213 and the second connecting portion 14.

[0050] In a specific implementation, taking one implementation method as an example, an elongated through hole 2131 can be opened on the first connecting part 213, and at least one third through hole 141 can be opened on the second connecting part 14. The fixing mechanism 17 can be a screw. The third through hole 141 is adapted to the screw rod part, and the size of the elongated through hole 2131 is larger than the diameter of the screw rod part. The screw rod part passes through the elongated through hole 2131 and the third through hole 141 respectively. At this time, the screw rod part can slide in the elongated through hole 2131. When it slides towards the first limiting end of the elongated through hole 2131, it will drive the first assembly 21 to rise (away from the bottom end face 30), thereby increasing the size of the receiving area. At this time, the traveling wheel 40 can be received in the receiving area. After installation, the screw rod part can slide towards the second limiting end of the elongated through hole 2131. At this time, it will drive the first assembly 21 to fall (closer to the bottom end face 30) to reduce the size of the receiving area. At this time, the traveling wheel 40 can be restricted in the receiving area to prevent the traveling wheel 40 from being displaced.

[0051] In another example, when it is necessary to slide the screw rod, the screw can be loosened first to increase the distance between the first connecting part 213 and the second connecting part 14, so as to facilitate the sliding of the screw rod. After the traveling wheel 40 is accommodated, the screw can be tightened to reduce the distance between the first connecting part 213 and the second connecting part 14, thereby further reducing the accommodating area.

[0052] Furthermore, the second connecting part 14 may not have a through hole; instead, an integrated screw may be directly provided, which connects to the elongated through hole 2131 and is then secured with a nut. Alternatively, other methods can be used, as long as they enable the sliding lifting and lowering operations in this embodiment; no unique limitation is made here.

[0053] It is understood that the specific structure and shape of the first connecting part 213, the second connecting part 14 and the fixing mechanism 17 can be adjusted according to the actual situation, as long as they can realize the sliding lifting and lowering operation in this embodiment, and no unique limitation is made here.

[0054] Optionally, the second connecting portion 14 can be located at the end of the triangle-like structure away from the bottom surface 30, while the end of the triangle-like structure near the bottom surface 30 and near the second mounting portion 102 is provided with a third connecting portion 103. The first end of the second assembly 22 is provided with a fourth connecting portion 223. The second assembly 22 is connected to the movable base 10 through the combination of the third connecting portion 103 and the fourth connecting portion 223. Optionally, the third connecting portion 103 and the fourth connecting portion 223 can be structures that can be directly fitted and fixed, or they can be fixed by additional fasteners, including but not limited to screws, screw assemblies, pins, and coverings (such as rubber sleeves). For example, at least one second through hole 1031 can be provided on the third connecting portion 103 (two are shown in the figure), and at least one sixth through hole 2231 can be provided on the fourth connecting portion 223 (two are shown in the figure). When the second assembly 22 is connected to the movable base 10, the second through hole 1031 and the sixth through hole 2231 are aligned and connected and fixed by fasteners.

[0055] As can be seen, in this embodiment, the locking and opening of the accommodating area are achieved through the first connecting part 213 and the second connecting part 14 to meet the accommodating needs of the running wheel 40 and improve the efficiency of installing the rescue device on the running wheel 40.

[0056] In one possible embodiment, the first assembly 21 is also provided with a limiting wheel 211, which restricts the running wheel 40 within the receiving area after the rescue device is installed on the running wheel 40 through the receiving area.

[0057] In a specific implementation, a limiting wheel 211 is provided on the bottom end face 30 of the first assembly 21 that is away from the ceiling track and away from the first connecting part 213. The limiting wheel 211 and the support part 13 form a clamping effect on the running wheel 40, thereby restricting the running wheel 40 within the accommodating area.

[0058] Understandably, the limiting wheel is rotatable, and when the running wheel 40 is housed in the receiving area, the limiting wheel contacts the wheel surface of the running wheel 40, so that the running wheel 40 can be more easily placed into the receiving area.

[0059] As can be seen, in this embodiment, the limiting wheel 211 provides a limiting mechanism for the traveling wheel 40 in the accommodating area, and also increases the sliding force of the traveling wheel 40 during the process of placing it in the accommodating area, thereby reducing the difficulty of accommodating the traveling wheel 40. In one possible embodiment, the first assembly 21 is further provided with a limiting member 212, which restricts the running wheel 40 within the receiving area after the rescue device is installed on the running wheel 40 through the receiving area.

[0060] In a specific implementation, at least one limiting member 212 extends from the top of the sheet-like first assembly 21 away from the bottom end face 30 toward the second viewing angle. The limiting member 212 cooperates with the limiting wheel 211 and the support part 13 to further increase the stability of the running wheel 40 within the accommodating area.

[0061] In one possible embodiment, the plurality of assemblies further includes a fourth assembly 24, which is fixedly connected to the first assembly 21 by the limiting member 212. The fourth assembly 24 is connected to a sliding wheel 243, which contacts the side wall inside the ceiling track.

[0062] In a specific implementation, the limiting member 212 on the first assembly 21 can be provided with a fifth connecting part 2121, and the fourth assembly 24 can be provided with a sixth connecting part 241. Through the cooperation between the fifth connecting part 2121 and the sixth connecting part 241, the fourth assembly 24 can be connected to the first assembly 21.

[0063] Specifically, to illustrate with one possible example, the fifth connecting portion 2121 includes at least one fourth through hole, and the sixth connecting portion 241 includes at least one fifth through hole. When there are two limiting members 212, two fifth connecting portions 2121 and two sixth connecting portions 241 can be provided. The fourth through holes and the fifth through holes can be fixed together by screws.

[0064] Similar to the first connecting part 213 and the second connecting part 14, the fifth connecting part 2121 and the sixth connecting part 241 may not have through holes. Instead, one connecting part can have an integrated screw, while the other connecting part has a through hole. The integrated screw connects to the through hole and is then secured with a nut. Alternatively, other methods can be used, as long as they enable the sliding lifting and lowering operation in this embodiment. No unique limitation is made here.

[0065] Furthermore, the fourth assembly 24 can also be configured as a sheet, on which a seventh connecting portion 242 is provided for connection with the sliding wheel 243. When the sliding wheel 243 is connected to the seventh connecting portion 242, the sliding wheel 243 can rotate on the seventh connecting portion 242. Specifically, the wheel surface of the sliding wheel 243 is opposite to the side wall of the track. When the rescue device moves and the wheel surface of the sliding wheel 243 contacts the side wall of the track, the side wall of the track provides a frictional force to the wheel surface of the sliding wheel 243 in the opposite direction to the movement direction of the rescue device, thereby causing the sliding wheel 243 to roll on the side wall of the track. This converts the frictional force between the rescue device and the side of the track into rolling friction, reducing the frictional force and allowing the rescue device to move more smoothly in the track.

[0066] In one possible embodiment, the second assembly 22 is connected to a support wheel 222. After the rescue device is installed on the running wheel 40 through the receiving area, the support wheel 222 and the support part 13 together support the running wheel 40 and confine the running wheel 40 within the receiving area.

[0067] In a specific implementation, a mounting hole is provided on the second assembly 22 near the bottom end face 30 of the ceiling track. A rotating shaft is mounted on the second assembly 22 through this mounting hole, and a support wheel 222 is rotatably mounted on the rotating shaft. This support wheel 222 provides support when the running wheel 40 is housed in the receiving area, counteracting the weight of the running wheel 40 and thus lifting the running wheel 40 away from the bottom end face 30. Furthermore, the support wheel 222 can also form a combined limiting position with the limiting wheel 211 and / or the support portion 13 on the running wheel 40, thereby confining the running wheel 40 within the receiving area.

[0068] Understandably, the support wheel 222 is rotatable, and when the running wheel 40 is housed in the receiving area, the limiting wheel contacts the wheel surface of the running wheel 40, so that the running wheel 40 can be more easily placed into the receiving area.

[0069] In one configuration, the support wheel 222 is positioned at the end of the second assembly 22 away from the movable wheel, but not in contact with the bottom surface 30. It is understood that the position of the support wheel 222 can be adjusted depending on the specific circumstances; for example, it can be positioned in the middle of the second assembly 22; or, the support wheel 222 can be positioned away from the movable seat 10 while being close to the first assembly 21.

[0070] It is understandable that the end furthest from the moving wheel can be an area rather than an end point, and the specifics can be adjusted according to the actual situation, without being limited here.

[0071] As can be seen, in this embodiment, the support wheel 222 provides a limiting mechanism for the running wheel 40 in the accommodating area, and also increases the supporting force for placing the running wheel 40, which helps to improve the stability of the running wheel 40 in the accommodating area.

[0072] In one possible embodiment, a second movable wheel 221 is connected to the second assembly 22, and after the rescue device is installed on the running wheel 40 through the receiving area, the second movable wheel 221 contacts the bottom end face 30 inside the ceiling track.

[0073] In a specific implementation, the second end of the second assembly 22, which is away from the movable seat 10, is also provided with a second movable wheel 221. The distance between the second movable wheel 221 and the movable seat 10 can be greater than that of the support wheel 222, so that it can cooperate with the first movable wheel 11 to form a support state of the front and rear wheels of the rescue device, so that the entire rescue device is supported by the first movable wheel 11 and the second movable wheel 221, and then the first movable wheel 11 and the second movable wheel 221 replace the walking wheel 40 to assist the walking module in moving.

[0074] It can be seen that in this implementation, the overall stability and mobility of the rescue device are improved by the cooperation between the second moving wheel 221 and the first moving wheel 11.

[0075] In one possible embodiment, one or more of the limiting wheel 211, support wheel 222, second moving wheel 221 and third moving wheel 12 may be a bearing (bearing), or a silicone wheel, rubber wheel or other type of wheel. The choice can be made according to the actual production situation, and no unique limitation is made here.

[0076] One or more of the first assembly 21, the second assembly 22, the third assembly 23, and the fourth assembly 24 may be components made of metal, plastic, or other materials, and may be selected according to actual production conditions, without being limited to a single type.

[0077] In one possible embodiment, the movable seat 10 is provided with a first support portion (not shown in the figure) extending from the second mounting portion 102, and the second assembly 22 is provided with an eighth connecting portion (not shown in the figure) for engaging with the first support portion. The shape of the first support portion is adapted to the outer contour of the running wheel 40 (for example, its shape can be arc-shaped). When the running wheel 40 is installed in the receiving area, the first support portion can fit against the surface of the running wheel 40, providing an upward support force to lift the running wheel 40 and prevent the running wheel 40 from contacting the bottom surface, thus increasing friction.

[0078] Specifically, the first support part can also be a column or other shape, which can also provide a certain support for the running wheel 40, and there is no unique limitation here.

[0079] Furthermore, a ninth connecting portion (not shown in the figure) is provided at the end of the first support portion extending from the second mounting portion 102. The first support portion is connected to the eighth connecting portion of the second assembly 22 through the ninth connecting portion, thereby connecting the second assembly 22 with the first support portion.

[0080] It is understandable that both the eighth and ninth connecting parts can be provided with through holes and then connected by additional fasteners; alternatively, through holes can be omitted, and the parts can be fixed by providing mating structures (such as mortise and tenon structures, grooves and protrusions, etc.) between the eighth and ninth connecting parts respectively; welding or other connection methods can also be used, and no unique limitation is made here.

[0081] In addition, the ninth and eighth connecting parts can also be configured as screw assemblies. The first support part is provided at one end of the second mounting part 102 and is movably (e.g., rotatably) connected to the second mounting part 102. When the running wheel 40 is installed in the receiving area, the first support part is tightened by the screw assembly so that the first support part, together with other support components (e.g., support part, support wheel, limit member, limit wheel, etc.), clamps the running wheel 40 in the receiving area, thereby preventing the running wheel 40 from detaching from the receiving area.

[0082] Similarly, in another possible embodiment, the support portion can also be provided on the second assembly 22, that is, the second assembly 22 is provided with a second support portion (not shown in the figure) that can be movably connected, and the movable seat 10 is provided with a tenth connecting portion (not shown in the figure) for cooperating with the second support portion. The shape of the second support portion is adapted to the outer contour of the running wheel 40 (for example, its shape can be arc-shaped). When the running wheel 40 is installed in the receiving area, the second support portion can fit against the surface of the running wheel 40, providing an upward support force to the running wheel 40, so as to lift the running wheel 40 and avoid the running wheel 40 from contacting the bottom surface and increasing friction.

[0083] Specifically, similar to the first support part, the second support part can also be provided with an eleventh connecting part to connect with the tenth connecting part, realizing functions such as fixing and locking, and providing the second support part with the same functions as the first support part. It can be understood that the connection method between the tenth connecting part and the eleventh connecting part is the same as the connection method between the eighth connecting part and the ninth connecting part, and will not be described in detail here.

[0084] While this application discloses the above information, it is not limited thereto. Any person skilled in the art can easily conceive of variations or substitutions without departing from the spirit and scope of this application, and can make various alterations and modifications, including combinations of the different functions and implementation steps described above, as well as software and hardware implementation methods, all of which are within the protection scope of this application.

Claims

1. A device for the rescue of a stuck walking wheel of a confined space, characterized in that, Used for auxiliary movement when mounted on the traveling wheels of an overhead crane; the rescue device includes a movable base and multiple assemblies, which are combined with each other and fixedly connected to the movable base to form a receiving area for accommodating the traveling wheels; The mobile seat is equipped with a first moving wheel. After the rescue device is installed on the running wheel through the receiving area, the first moving wheel contacts the bottom surface inside the ceiling track.

2. Rescue device according to claim 1, characterized in that The plurality of assemblies includes a first assembly and a second assembly; the first assembly is slidably connected to the end of the movable seat away from the bottom end face, and the second assembly is fixedly connected to the end of the movable seat near the bottom end face. The first assembly and the second assembly are fixedly connected to form the receiving area; or, The plurality of assemblies also includes a third assembly, wherein the first assembly and the second assembly are rotatably connected via the third assembly to form the receiving area.

3. Rescue device according to claim 2, characterized in that The first assembly is provided with a first connecting part, and the movable base is provided with a second connecting part; A fixing mechanism is connected to the first connecting part and the second connecting part. The fixing mechanism is used to fix the first connecting part to the second connecting part at any position during the sliding stroke of the first connecting part and the second connecting part.

4. Rescue device according to claim 2, characterized in that The first assembly is also provided with a limiting wheel. After the rescue device is installed on the running wheel through the receiving area, the limiting wheel restricts the running wheel within the receiving area.

5. The rescue device of claim 2, wherein, The first assembly is also provided with a limiting member, which restricts the running wheel within the receiving area after the rescue device is installed on the running wheel through the receiving area.

6. Rescue device according to claim 5, characterized in that The plurality of assemblies also includes a fourth assembly, which is fixedly connected to the first assembly by the limiting member. The fourth assembly is connected to a sliding wheel, which contacts the side wall inside the ceiling track.

7. The rescue device of claim 2, wherein, The second assembly is connected to a support wheel. After the rescue device is installed on the running wheel through the receiving area, the support wheel supports the running wheel and confines the running wheel within the receiving area.

8. The rescue device of claim 2, wherein, The second assembly is connected to a second moving wheel. After the rescue device is installed on the running wheel through the receiving area, the second moving wheel contacts the bottom surface inside the ceiling track.

9. The rescue device of claim 1, wherein, The movable seat is rotatably connected to a third movable wheel and a blocking component at one end near the bottom surface; After the rescue device is installed on the running wheel through the receiving area, the third moving wheel contacts the bottom surface inside the ceiling rail, and the blocking member is used to rotate to the side of the running wheel through the rotating structure of the moving seat.

10. Rescue arrangement according to any of claims 1-9, characterized in that The movable seat includes a support portion whose shape is adapted to the outer contour of the running wheel.

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