Maintenance platform and walking system

Abstract

The utility model discloses a maintenance platform and a walking system. The maintenance platform comprises a maintenance frame, a first wheel set, a second wheel set, a first brake assembly and a second brake assembly. The first wheel set is connected to the maintenance frame and used for making rolling contact with a ground rail. The second wheel set is connected to the maintenance frame and used for making rolling contact with a sky rail. The first brake assembly is connected to the maintenance frame and used for holding or releasing the ground rail. The second brake assembly is connected to the maintenance frame and used for holding or releasing the sky rail.

Description

Technical Field

[0001] The present application relates to the technical field of warehousing and logistics, and in particular to a maintenance platform and a walking system including the maintenance platform. Background Art

[0002] The running mechanism is used to move between shelves to take goods out of the storage location and put them into the designated location. In order to improve the space utilization of the warehouse, the shelves in the related art are usually designed to be narrow. When the running mechanism stays in the narrow shelf due to a malfunction, the existing maintenance equipment cannot enter the narrow shelf, and thus cannot repair the running mechanism. Utility Model Content

[0003] The embodiments of the present application provide a maintenance platform and a walking system that can move along a ceiling rail and a ground rail, so as to solve the problem in the related art that a faulty walking mechanism cannot be repaired.

[0004] The maintenance platform of the embodiment of the present application includes:

[0005] Maintenance rack;

[0006] A first wheel assembly, connected to the maintenance frame, for rolling contact with a ground rail;

[0007] A second wheel assembly, connected to the maintenance frame, for rolling contact with a sky rail;

[0008] A first brake assembly, connected to the maintenance frame, for clamping or releasing the ground rail; and

[0009] The second brake assembly is connected to the maintenance frame and is used for clamping or releasing the overhead rail.

[0010] According to some embodiments of the present application, the first brake assembly includes:

[0011] A brake frame connected to the maintenance frame and having two elastic arms, wherein the two elastic arms are respectively located on both sides of the width direction of the ground rail;

[0012] Two first brake pads, respectively connected to surfaces of the two elastic arms facing each other; and

[0013] The first operating component is connected to the two elastic arms and is used to drive the two elastic arms to move closer to or separate from each other, so that the two first brake pads hold or release the ground rail.

[0014] According to some embodiments of the present application, each of the elastic arms has a through hole, and the two elastic arms are respectively a first elastic arm and a second elastic arm; the first operating assembly includes:

[0015] A connecting rod is passed through the two through holes; one end of the connecting rod has a stopper, and the stopper cooperates with a stopper on one side of the first elastic arm facing away from the second elastic arm; and

[0016] The operating portion is connected to the portion of the connecting rod extending from a surface of the second elastic arm on a side facing away from the first elastic arm, and is used to push the second elastic arm to move toward a direction close to the first elastic arm.

[0017] According to some embodiments of the present application, the operating unit includes:

[0018] A cushion block having a through hole, wherein the connecting rod is passed through the through hole;

[0019] The first wrench comprises a cam portion and a force applying portion, wherein the outer surface of the cam portion abuts against the cushion block and is rotatably connected to the connecting rod, and the force applying portion is connected to the cam portion.

[0020] According to some embodiments of the present application, the cushion block has a groove for accommodating at least a portion of the cam portion.

[0021] According to some embodiments of the present application, the second brake assembly includes:

[0022] Two second brake pads are respectively located on both sides of the width direction of the overhead rail;

[0023] two swing arms, both hinged to the maintenance frame and respectively connected to one of the second brake pads; and

[0024] The second operating component is used to drive the two swing arms to swing simultaneously, so that the two second brake pads hold or release the overhead rail.

[0025] According to some embodiments of the present application, each of the swing arms has a slide slot, and the slide slot has a first end and a second end opposite to each other; the second operating assembly includes:

[0026] The sliding member has two pins, and the two pins are slidably disposed in the two slide grooves respectively;

[0027] A traction bar extending along the height direction of the maintenance frame, and one end of the traction bar is connected to the sliding member;

[0028] A rack connected to the other end of the traction bar;

[0029] a gear rotatably connected to the maintenance frame and meshing with the rack; and

[0030] a second wrench connected to the gear;

[0031] Among them, when the two pin shafts are respectively located at the first ends of the two slide grooves, the two second brake pads hold the ceiling rail; when the two pin shafts are respectively located at the second ends of the two slide grooves, the two second brake pads release the ceiling rail.

[0032] According to some embodiments of the present application, there is a first distance between the second wrench and the ground rail, there is a second distance between the second wrench and the ceiling rail, and the first distance is smaller than the second distance.

[0033] According to some embodiments of the present application, a ratio of the first distance to the second distance is between 1 / 6 and 1 / 3.

[0034] According to some embodiments of the present application, it also includes:

[0035] A locking member is mounted on the maintenance frame and is used to lock the second brake pad in a first position for holding the ceiling rail or in a second position for releasing the ceiling rail.

[0036] According to some embodiments of the present application, the rack has a first slot and a second slot;

[0037] When the second brake pad is located at the first position, at least a portion of the locking member is inserted into the first slot; when the second brake pad is located at the second position, at least a portion of the locking member is inserted into the second slot.

[0038] The walking system of the embodiment of the present application includes:

[0039] Ground rails, arranged on the ground;

[0040] A ceiling rail, arranged opposite to the ground rail in a vertical direction;

[0041] A walking mechanism, movably connected to the ground rail and the ceiling rail; and

[0042] The maintenance platform described in any of the above items is movably connected to the ground rail and the ceiling rail.

[0043] One embodiment of the above application has at least the following advantages or beneficial effects:

[0044] When the maintenance platform of the embodiment of the present application moves, the first brake assembly releases the ground rail, the second brake assembly releases the ceiling rail, the first wheel assembly moves along the ground rail, and the second wheel assembly moves along the ceiling rail. When the maintenance platform moves to the target position, the first brake assembly holds the ground rail tightly, and the second brake assembly holds the ceiling rail tightly, so that the maintenance platform can stably stop at the target position, and then the maintenance personnel can repair the walking mechanism. At the same time, it is avoided that the maintenance personnel are injured due to the accidental movement of the maintenance platform during the maintenance process. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 What is shown is a three-dimensional schematic diagram of the walking system of an embodiment of the present application.

[0046] Figure 2 Shown is a three-dimensional schematic diagram of a maintenance platform according to an embodiment of the present application.

[0047] Figure 3 Shown is a perspective schematic diagram of a first brake assembly.

[0048] Figure 4 Shown is an exploded schematic diagram of a first brake assembly.

[0049] Figure 5 Shown is a schematic diagram of two swing arms.

[0050] Figure 6 Shown is a schematic diagram of a second operating assembly.

[0051] The reference numerals are described as follows:

[0052] 400, walking mechanism; 401, ground rail; 402, ceiling rail;

[0053] 600, maintenance platform;

[0054] 610, maintenance rack; 611, longitudinal beam; 612, support platform;

[0055] 620, first wheel assembly; 621, first roller; 6211, flange;

[0056] 630, second wheel set; 631, second roller;

[0057] 640, first brake assembly; 641, brake frame; 6411, elastic arm; 6411a, through hole; 6411b, first elastic arm; 6411c, second elastic arm; 6412, connecting portion; 642, first brake pad; 643, first operating assembly; 6431, connecting rod; 6431a, stopper; 6432, operating portion; 64321, pad; 64321a, through hole; 64321b, groove; 64322, first wrench; 64322a, cam portion; 64322b, force application portion;

[0058] 650, second brake assembly; 651, second brake pad; 652, swing arm; 6521, slide groove; 6521a, first end; 6521b, second end; 653, second operating assembly; 6531, sliding member; 6531a, pin shaft; 6532, traction bar; 6533, rack; 6533a, first slot; 6533b, second slot; 6534, gear; 6535, second wrench;

[0059] 660, locking piece;

[0060] L1, first distance; L2, second distance;

[0061] D1, first direction; D2, second direction; D3, third direction. DETAILED DESCRIPTION

[0062] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0063] It is understood that the terms "including" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or components that are inherent to these processes, methods, products, or devices.

[0064] like Figure 1 As shown, the walking system of the embodiment of the present application includes a ground rail 401, a ceiling rail 402, a walking mechanism 400 and a maintenance platform 600. The ground rail 401 is arranged on the ground, and the ceiling rail 402 is arranged opposite to the ground rail 401 in the vertical direction. The walking mechanism 400 is movably connected to the ground rail 401 and the ceiling rail 402, and the maintenance platform 600 is movably connected to the ground rail 401 and the ceiling rail 402. Shelves (not shown in the figure) are arranged on both sides of the width direction of the ceiling rail 402 and the ground rail 401, and the walking mechanism 400 moves along the ceiling rail 402 and the ground rail 401 to take out the target goods placed on the shelves and transport them to the designated location.

[0065] When the traveling mechanism 400 stops at a position between the ground rail 401 and the ceiling rail 402 due to a malfunction, the maintenance platform 600 can move along the ground rail 401 and the ceiling rail 402 to transport maintenance personnel to the vicinity of the traveling mechanism 400 so that the maintenance personnel can repair the traveling mechanism 400.

[0066] like Figure 2As shown, the maintenance platform 600 of the embodiment of the present application includes a maintenance frame 610, a first wheel set 620, a second wheel set 630, a first brake assembly 640 and a second brake assembly 650. The first wheel set 620 is connected to the maintenance frame 610, and is used for rolling contact with the ground rail 401. The second wheel set 630 is connected to the maintenance frame 610, and is used for rolling contact with the ceiling rail 402. The first brake assembly 640 is connected to the maintenance frame 610, and is used for holding or releasing the ground rail 401. The second brake assembly 650 is connected to the maintenance frame 610, and is used for holding or releasing the ceiling rail 402.

[0067] When the maintenance platform 600 moves, the first brake assembly 640 releases the ground rail 401, and the second brake assembly 650 releases the ceiling rail 402, the first wheel assembly 620 moves along the ground rail 401, and the second wheel assembly 630 moves along the ceiling rail 402. When the maintenance platform 600 moves to the target position, the first brake assembly 640 holds the ground rail 401, and the second brake assembly 650 holds the ceiling rail 402, so that the maintenance platform 600 can stably stop at the target position, and then the maintenance personnel can repair the walking mechanism 400. At the same time, it is prevented that the maintenance personnel are injured due to the accidental movement of the maintenance platform 600 during the maintenance process.

[0068] For ease of explanation, the moving direction of the maintenance platform 600 is defined as the first direction D1, the height direction of the maintenance rack 610 is defined as the second direction D2, the first direction D1 is perpendicular to the second direction D2, and the direction perpendicular to the first direction D1 and the second direction D2 is defined as the third direction D3.

[0069] like Figure 2 As shown, the maintenance frame 610 includes two longitudinal beams 611 and a plurality of support platforms 612. The two longitudinal beams 611 are arranged at intervals along the first direction D1, and the length direction of each longitudinal beam 611 is parallel to the second direction D2. The plurality of support platforms 612 are connected between the two longitudinal beams 611 and are arranged at intervals along the second direction D2. Each support platform 612 can be used for maintenance personnel to stand. The plurality of support platforms 612 are arranged at intervals along the second direction D2, so that maintenance personnel can stand on support platforms 612 at different heights to perform maintenance on different height positions of the walking mechanism 400.

[0070] In the embodiment of the present application, the number of the support platforms 612 is three, but is not limited thereto. For example, the number of the support platforms 612 may also be two, four, five, etc.

[0071] like Figure 2As shown, the first wheel group 620 includes two first rollers 621, which are arranged at intervals along the first direction D1, and each first roller 621 is rotatably connected to the maintenance frame 610. Each first roller 621 is in rolling contact with the upper surface of the ground rail 401, and flanges 6211 are provided on both axial sides of the first roller 621, and the ground rail 401 is located between the two flanges 6211 to prevent the first roller 621 from falling off the ground rail 401.

[0072] The second wheel assembly 630 includes a plurality of second rollers 631 , which are respectively located on both sides of the ceiling rail 402 along the third direction D3 . Each second roller 631 is rotatably connected to the maintenance frame 610 and is in rolling contact with the side of the ceiling rail 402 .

[0073] In one embodiment, the cross-section of the ceiling rail 402 is an I-shape, and the second roller 631 is suspended from the ceiling rail 402 , but the present invention is not limited thereto.

[0074] like Figure 3 and Figure 4 As shown, the first brake assembly 640 includes a brake frame 641, two first brake pads 642 and a first operating assembly 643. The brake frame 641 has a connecting portion 6412 and two elastic arms 6411. The connecting portion 6412 is connected to the maintenance frame 610 and is located on the side where the upper surface of the ground rail 401 is located. The two elastic arms 6411 are respectively connected to the two ends of the connecting portion 6412 along the third direction D3, and are respectively located on both sides of the width direction (third direction D3) of the ground rail 401. The two first brake pads 642 are respectively connected to the surfaces of the two elastic arms 6411 facing each other. The first operating assembly 643 is connected to the two elastic arms 6411, and is used to drive the two elastic arms 6411 to approach or separate from each other, so that the two first brake pads 642 hold or release the ground rail 401.

[0075] When the ground rail 401 needs to be held tightly, the maintenance personnel can operate the first operating assembly 643 to move the two elastic arms 6411 closer to each other, thereby driving the two first brake pads 642 closer to each other and contacting the side of the ground rail 401 to achieve the braking purpose.

[0076] When the ground rail 401 needs to be released, the maintenance personnel operates the first operating assembly 643 again to move the two elastic arms 6411 away from each other, thereby driving the two first brake pads 642 away from each other to release the brake.

[0077] like Figure 4 As shown, each elastic arm 6411 has a through hole 6411a, and the through hole 6411a penetrates the elastic arm 6411 along the thickness direction of the elastic arm 6411. For the convenience of description, the two elastic arms 6411 are respectively a first elastic arm 6411b and a second elastic arm 6411c.

[0078] The first operating assembly 643 includes a connecting rod 6431 and an operating portion 6432. The connecting rod 6431 is inserted into the two through holes 6411a; one end of the connecting rod 6431 has a stopper 6431a, and the stopper 6431a is engaged with a stopper on a side of the first elastic arm 6411b facing away from the second elastic arm 6411c. The operating portion 6432 is connected to a portion of the connecting rod 6431 extending from a side surface of the second elastic arm 6411c facing away from the first elastic arm 6411b, and is used to push the second elastic arm 6411c to move toward the direction close to the first elastic arm 6411b.

[0079] When the ground rail 401 needs to be held tightly, the operating part 6432 pushes against the second elastic arm 6411c and pulls the connecting rod 6431. Under the action of the connecting rod 6431, the first elastic arm 6411b and the second elastic arm 6411c drive the two first brake pads 642 to approach each other. When the ground rail 401 needs to be released, the operating part 6432 no longer pushes against the second elastic arm 6411c, and the first elastic arm 6411b and the second elastic arm 6411c automatically reset under the action of their own elastic force, thereby releasing the brake.

[0080] like Figure 4 As shown, the operating part 6432 includes a cushion block 64321 and a first wrench 64322. The cushion block 64321 has a through hole 64321a, and the connecting rod 6431 is inserted into the through hole 64321a. The first wrench 64322 includes a cam portion 64322a and a force-applying portion 64322b, and the outer surface of the cam portion 64322a abuts against the cushion block 64321, and is rotatably connected to the connecting rod 6431. The force-applying portion 64322b is connected to the cam portion 64322a. The maintenance personnel can adjust the contact position of the cam portion 64322a and the cushion block 64321 by rotating the force-applying portion 64322b. When the more convex surface of the cam portion 64322a abuts against the cushion block 64321, the first wrench 64322 can pull the connecting rod 6431, thereby causing the two first brake pads 642 to hold the ground rail 401 tightly. When the flatter surface of the cam portion 64322 a contacts the pad 64321 , the two first brake pads 642 release the ground rail 401 .

[0081] The cushion block 64321 has a groove 64321b for accommodating at least part of the cam portion 64322a. The cushion block 64321 is provided with the groove 64321b, which can improve the stability of the connection between the first wrench 64322 and the cushion block 64321 and prevent the cam portion 64322a from being separated from the cushion block 64321.

[0082] like Figure 5 and Figure 6As shown, the second brake assembly 650 includes two second brake pads 651, two swing arms 652 and a second operating assembly 653. The two second brake pads 651 are respectively located on both sides of the width direction (third direction D3) of the overhead rail 402; the two swing arms 652 are both hinged to the maintenance frame 610, and are respectively connected to a second brake pad 651. The second operating assembly 653 is used to drive the two swing arms 652 to swing simultaneously, so that the two second brake pads 651 hold or release the overhead rail 402.

[0083] The maintenance personnel can swing the two swing arms 652 by operating the second operating assembly 653, thereby achieving the two second brake pads 651 to move closer to or farther away from each other. When the two second brake pads 651 move closer to each other, they hold the ceiling rail 402 tightly; when the two second brake pads 651 move away from each other, they release the ceiling rail 402.

[0084] like Figure 5 and Figure 6 As shown, each swing arm 652 has a slide groove 6521, and the slide groove 6521 has a first end 6521a and a second end 6521b opposite to each other. The second operating assembly 653 includes a sliding member 6531, a traction bar 6532, a rack 6533, a gear 6534 and a second wrench 6535. The sliding member 6531 has two pins 6531a, and the two pins 6531a are slidably disposed in the two slide grooves 6521 respectively; wherein, when the two pins 6531a are respectively located at the first ends 6521a of the two slide grooves 6521, the two second brake pads 651 hold the ceiling rail 402; when the two pins 6531a are respectively located at the second ends 6521b of the two slide grooves 6521, the two second brake pads 651 release the ceiling rail 402. The traction bar 6532 extends along the height direction of the maintenance frame 610, and one end of the traction bar 6532 is connected to the sliding member 6531. The rack 6533 is connected to the other end of the pulling bar 6532 ; the gear 6534 is rotatably connected to the maintenance frame 610 and meshes with the rack 6533 . The second wrench 6535 is connected to the gear 6534 .

[0085] The traction bar 6532 can be made of a rigid material. When the maintenance personnel rotates the second wrench 6535, the gear 6534 rotates accordingly, and then drives the rack 6533 to reciprocate along the second direction D2. The rack 6533 can drive the sliding member 6531 to reciprocate along the second direction D2 through the traction bar 6532, and then the sliding member 6531 can drive the pin 6531a to slide between the first end 6521a and the second end 6521b of the sliding groove 6521.

[0086] like Figure 6As shown, the maintenance platform 600 further includes a locking member 660, which is mounted on the maintenance frame 610 and is used to lock the second brake pad 651 at a first position for holding the ceiling rail 402 or a second position for releasing the ceiling rail 402. By providing the locking member 660, the second brake pad 651 can be locked at the first position for holding the ceiling rail 402 or the second position for releasing the ceiling rail 402, and when maintenance personnel stand on the support platform 612 for maintenance, brake failure caused by the second brake pad 651 accidentally releasing the ceiling rail 402 can be avoided.

[0087] like Figure 6 As shown, the rack 6533 has a first slot 6533a and a second slot 6533b. The first slot 6533a and the second slot 6533b can be arranged at intervals along the second direction D2. When the second brake pad 651 is located at the first position, at least a portion of the locking member 660 is inserted into the first slot 6533a; when the second brake pad 651 is located at the second position, at least a portion of the locking member 660 is inserted into the second slot 6533b.

[0088] like Figure 2 As shown, there is a first distance L1 between the second wrench 6535 and the ground rail 401, and there is a second distance L2 between the second wrench 6535 and the ceiling rail 402, and the first distance L1 is smaller than the second distance L2.

[0089] Furthermore, the ratio of the first distance L1 to the second distance L2 is between 1 / 6 and 1 / 3, for example, L1 / L2 = 1 / 5, or L1 / L2 = 1 / 4. That is, the second wrench 6535 is closer to the ground rail 401, so that maintenance personnel can operate the second wrench 6535 while standing on the ground.

[0090] In summary, the maintenance platform 600 and the walking system of the embodiment of the present application have at least the following advantages and beneficial effects:

[0091] When the maintenance platform 600 of the embodiment of the present application moves, the first brake assembly 640 releases the ground rail 401, the second brake assembly 650 releases the ceiling rail 402, the first wheel assembly 620 moves along the ground rail 401, and the second wheel assembly 630 moves along the ceiling rail 402. After the maintenance platform 600 moves to the target position, the first brake assembly 640 holds the ground rail 401, and the second brake assembly 650 holds the ceiling rail 402, so that the maintenance platform 600 can stably stop at the target position, and then the maintenance personnel can repair the walking mechanism 400. At the same time, it is avoided that the maintenance personnel are injured due to the accidental movement of the maintenance platform 600 during the maintenance process.

[0092] It is understandable that the various embodiments / implementations provided in the present application can be combined with each other without causing any contradiction, and will not be illustrated one by one here.

[0093] In the application embodiments, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise expressly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the application embodiments can be understood according to the specific circumstances.

[0094] In the description of the application embodiments, it should be understood that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the application embodiments and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the application embodiments.

[0095] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the application embodiment. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0096] The above are only preferred embodiments of the application embodiments and are not intended to limit the application embodiments. For those skilled in the art, the application embodiments may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application embodiments shall be included in the protection scope of the application embodiments.

Claims

1. A maintenance platform, characterized in that: include: Maintenance rack (610); A first wheel set (620), connected to the maintenance frame (610), and configured to be in rolling contact with a ground rail (401); A second wheel set (630), connected to the maintenance frame (610), and configured to be in rolling contact with a sky rail (402); A first brake assembly (640), connected to the maintenance frame (610), used for clamping or releasing the ground rail (401); as well as The second brake assembly (650) is connected to the maintenance frame (610) and is used to hold or release the ceiling rail (402).

2. The maintenance platform according to claim 1, characterized in that: The first brake assembly (640) comprises: A brake frame (641) is connected to the maintenance frame (610) and has two elastic arms (6411), wherein the two elastic arms (6411) are respectively located on both sides of the width direction of the ground rail (401); Two first brake pads (642), respectively connected to surfaces of the two elastic arms (6411) facing each other; and The first operating component (643) is connected to the two elastic arms (6411) and is used to drive the two elastic arms (6411) to move closer to or away from each other, so that the two first brake pads (642) hold or release the ground rail (401).

3. The maintenance platform according to claim 2, characterized in that: Each of the elastic arms (6411) has a through hole (6411a), and the two elastic arms (6411) are respectively a first elastic arm (6411b) and a second elastic arm (6411c); the first operating component (643) includes: A connecting rod (6431) is inserted through the two through holes (6411a); one end of the connecting rod (6431) has a stopper (6431a), and the stopper (6431a) cooperates with a stopper on a side of the first elastic arm (6411b) facing away from the second elastic arm (6411c); and The operating portion (6432) is connected to the portion of the connecting rod (6431) extending from the surface of the second elastic arm (6411c) on the side facing away from the first elastic arm (6411b), and is used to push the second elastic arm (6411c) to move in a direction close to the first elastic arm (6411b).

4. The maintenance platform according to claim 3, characterized in that: The operating unit (6432) includes: The cushion block (64321) has a through hole (64321a), and the connecting rod (6431) is inserted into the through hole (64321a); The first wrench (64322) includes a cam portion (64322a) and a force-applying portion (64322b), wherein the outer surface of the cam portion (64322a) abuts against the cushion block (64321) and is rotatably connected to the connecting rod (6431), and the force-applying portion (64322b) is connected to the cam portion (64322a).

5. The maintenance platform according to claim 4, characterized in that: The spacer block (64321) has a groove (64321b) for accommodating at least a portion of the cam portion (64322a).

6. The maintenance platform according to claim 1, characterized in that: The second brake assembly (650) comprises: Two second brake pads (651) are respectively located on both sides of the width direction of the overhead rail (402); Two swing arms (652), both hinged to the maintenance frame (610), and each connected to one of the second brake pads (651); and The second operating component (653) is used to drive the two swing arms (652) to swing simultaneously, so that the two second brake pads (651) hold or release the ceiling rail (402).

7. The maintenance platform according to claim 6, characterized in that: Each of the swing arms (652) has a slide groove (6521), and the slide groove (6521) has a first end (6521a) and a second end (6521b) opposite to each other; the second operating assembly (653) includes: The sliding member (6531) has two pins (6531a), and the two pins (6531a) are slidably disposed in the two slide grooves (6521) respectively; A traction bar (6532) extends along the height direction of the maintenance frame (610), and one end of the traction bar (6532) is connected to the sliding member (6531); A rack (6533) connected to the other end of the traction bar (6532); a gear (6534) rotatably connected to the maintenance frame (610) and meshing with the rack (6533); and A second wrench (6535), connected to the gear (6534); When the two pin shafts (6531a) are respectively located at the first ends (6521a) of the two slide grooves (6521), the two second brake pads (651) hold the ceiling rail (402); when the two pin shafts (6531a) are respectively located at the second ends (6521b) of the two slide grooves (6521), the two second brake pads (651) release the ceiling rail (402).

8. The maintenance platform according to claim 7, characterized in that: There is a first distance between the second wrench (6535) and the ground rail (401), and there is a second distance between the second wrench (6535) and the ceiling rail (402), and the first distance is smaller than the second distance.

9. The maintenance platform according to claim 8, characterized in that: The ratio of the first distance to the second distance is between 1 / 6 and 1 / 3.

10. The maintenance platform according to claim 7, characterized in that: Also includes: A locking member (660) is mounted on the maintenance frame (610) and is used to lock the second brake pad (651) in a first position for holding the ceiling rail (402) or in a second position for releasing the ceiling rail (402).

11. The maintenance platform according to claim 10, characterized in that: The rack (6533) has a first slot (6533a) and a second slot (6533b); When the second brake pad (651) is located at the first position, at least a portion of the locking member (660) is inserted into the first slot (6533a); when the second brake pad (651) is located at the second position, at least a portion of the locking member (660) is inserted into the second slot (6533b).

12. A walking system, characterized in that: include: A ground rail (401) is arranged on the ground; A ceiling rail (402) is arranged opposite to the ground rail (401) in a vertical direction; A walking mechanism (400) movably connected to the ground rail (401) and the ceiling rail (402); as well as The maintenance platform described in any one of claims 1 to 11 is movably connected to the ground rail (401) and the ceiling rail (402).

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