An expandable hanging basket device and an arch trolley

Abstract

The present application provides an expandable hanging basket device and an arch trolley, which relate to the field of tunnel construction technology. Specifically, the expandable hanging basket device includes a main working basket and at least one auxiliary working basket. Among them, the main working basket includes a fixed frame, and the auxiliary working basket includes a guardrail and a connecting assembly. On the basis of the above, in order to prevent the auxiliary platform from tilting or tipping over when unfolded, the connecting assembly is rotatably connected to the guardrail and detachably connected to the fixed frame to form an enclosure relative to the auxiliary platform, thereby ensuring that the construction work can be carried out stably and reducing construction interruptions caused by safety issues. In order to prevent the guardrail from squeezing against the connecting assembly when being stored to produce bending deformation or cracks, the connecting assembly can also be stored in the guardrail to make full use of the space, thereby reducing damage and maintenance costs.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to an expandable hanging basket device and an arch frame trolley. Background Art

[0002] During the construction process, there are many unstable rocks on the surface of the excavated chamber formed after blasting and slag cleaning. To ensure the safety of the operators, the operators usually need to stand on the arch work platform supported by the telescopic boom to perform operations such as welding and bolting.

[0003] However, the inventors have found that when the existing arch work platform accommodates the sub-platform as a load-bearing surface, it is easy for the protective components and connecting components provided on the sub-platform to be squeezed against each other, causing bending deformation or cracks at the contact points, thus affecting the stability of the platform. Utility Model Content

[0004] The purpose of the utility model is to provide an expandable hanging basket device and an arch trolley, which can reduce the possibility of collision or extrusion between the guardrail and the connecting assembly, thereby ensuring the rigidity of both and the stability when bearing. The embodiment of the utility model is implemented as follows:

[0005] In a first aspect, the utility model provides an expandable hanging basket device, comprising:

[0006] A main work basket, the main work basket includes a fixed frame;

[0007] At least one auxiliary work basket is rotatably connected to the main work basket, and the auxiliary work basket includes a guardrail and a connecting component, which is rotatably connected to the guardrail and detachably connected to the fixed frame and can be stored in the guardrail.

[0008] In an optional embodiment, the main working basket further includes a main platform, the auxiliary working basket further includes an auxiliary platform, the auxiliary platform is rotatably connected to the main platform, and the guardrail is rotatably connected to the auxiliary platform.

[0009] In an optional embodiment, the guardrail includes two hinged rods and a support rod, and the two hinged rods are respectively hinged on both sides of the sub-platform, and the two ends of the support rod are respectively connected to the two hinged rods; the connecting assembly is rotatably connected to the support rod and can be stored between the two hinged rods.

[0010] In an optional embodiment, the connecting assembly includes two connecting rods, and the guardrail also includes two rotating shafts respectively perpendicular to the two ends of the supporting rods; and the connecting rods are rotatably connected to the supporting rods through the rotating shafts.

[0011] In an optional embodiment, the connecting assembly further comprises a latch member, the fixing frame is provided with a latch portion, and one end of the connecting rod away from the rotating shaft is fixed to the latch portion via the latch member.

[0012] In an optional embodiment, the guardrail further includes a limiting member, and the limiting member is sleeved on any one of the rotating shafts and located between the connecting rod and the supporting rod, and the length of the limiting member is greater than the thickness of the connecting rod.

[0013] In an optional embodiment, the connecting rod is configured as a telescopic rod structure.

[0014] In an optional embodiment, the expandable hanging basket device also includes a locking assembly for locking the auxiliary work basket relative to the fixed frame; the locking assembly includes a locking plate and a locking rod, the locking plate is connected to the auxiliary work basket, and the locking rod can pass through the locking plate and the fixed frame in sequence.

[0015] In an optional embodiment, the locking assembly also includes a locking pin connected to the locking rod, and a guide member connected to the auxiliary working basket, and the guide member is provided with a first groove and a second groove along the sliding direction of the locking rod, and both the first groove and the second groove can cooperate with the locking pin.

[0016] In a second aspect, the utility model provides an arch trolley, comprising a lifting device and an expandable hanging basket device as in any one of the aforementioned embodiments, and the expandable hanging basket device is connected to the lifting device.

[0017] The beneficial effects of the embodiments of the utility model include:

[0018] The present application provides an expandable hanging basket device and an arch trolley, which include a main work basket and at least one auxiliary work basket. Among them, the main work basket includes a main platform, and the auxiliary work basket includes a guardrail and a connecting assembly. On the basis of the above, in order to prevent the auxiliary platform from tilting or tipping over when it is unfolded, the connecting assembly is rotatably connected to the guardrail and detachably connected to the fixed frame to form an enclosure relative to the auxiliary platform, thereby ensuring that the construction work can be carried out stably and reducing construction interruptions caused by safety issues. In order to prevent the guardrail from squeezing against the connecting assembly when it is stored to produce bending deformation or cracks, the connecting assembly can also be stored in the guardrail to make full use of the space, thereby reducing damage and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the expansion of the expandable hanging basket device provided in an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the storage of an expandable hanging basket device provided in an embodiment of the utility model;

[0022] Figure 3 The embodiment of the utility model provides Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 The embodiment of the utility model provides Figure 1 The enlarged schematic diagram of point B in the middle;

[0024] Figure 5 A schematic diagram of a guardrail and a connecting assembly provided in an embodiment of the utility model;

[0025] Figure 6 Another schematic diagram of the guardrail and the connecting assembly provided by the embodiment of the utility model;

[0026] Figure 7 The embodiment of the utility model provides Figure 1 Enlarged schematic diagram of point C in the middle.

[0027] Icons: 10-expandable hanging basket device; 100-main working basket; 110-main platform; 111-retaining wall; 130-fixed frame; 131-latch part; 171-lighting lamp bracket; 173-welding rod cylinder; 175-welding handle clamp cylinder; 300-auxiliary working basket; 310-auxiliary platform; 330-guardrail; 331-hinged rod; 333-support rod; 334-limiting member; 335-rotating shaft; 350-connecting assembly; 351-connecting rod; 353-latch member; 370-slant-stayed member; 371-first diagonal-stayed member; 3711-sliding member; 373-second diagonal-stayed member; 3731-slide; 500-locking assembly; 510-locking plate; 530-locking rod; 550-locking pin; 570-guide member; 571-first groove; 573-second groove. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The utility model provides an arch frame trolley, which includes an expandable hanging basket device 10 and a lifting device connected to the expandable hanging basket device 10. It should be noted that based on the setting of the guardrail 330 and the connecting assembly 350 in the expandable hanging basket, the possibility of collision or extrusion between the two can be reduced, thereby ensuring the rigidity of each of the two and the stability when bearing. In addition, the lifting device can hoist the above-mentioned expandable hanging basket device 10 to a suitable height and position, thereby improving the working efficiency. Specifically, the lifting device can be an electric winch or an electric telescopic arm.

[0035] In addition, it should be noted that the expandable hanging basket device 10 provided by the present application is not only applied to the arch trolley, but also applied to the preset installation track on the tunnel wall or top, and can also be applied to the ship deck or offshore oil platform. Below, the specific structure of each component of the expandable hanging basket device 10 provided by the present application and the corresponding relationship between them will be described in detail.

[0036] Figure 1 This is a schematic diagram of the expansion of the expandable hanging basket device 10 provided in an embodiment of the utility model. Figure 2 This is a schematic diagram of the storage of the expandable hanging basket device 10 provided in the embodiment of the utility model. Figure 1 and Figure 2 The present application provides an expandable hanging basket device 10, which includes a main work basket 100 and at least one auxiliary work basket 300, and the auxiliary work basket 300 is rotatably connected to the main work basket 100 to achieve the folding or unfolding of the auxiliary work basket 300 relative to the main work basket 100.

[0037] Among them, the main work basket 100 includes a fixed frame 130, and the auxiliary work basket 300 includes a guardrail 330 and a connecting assembly 350. On the basis of the above, in order to prevent the auxiliary platform 310 from tilting or tipping over when unfolded, the connecting assembly 350 is rotatably connected to the guardrail 330 and is detachably connected to the fixed frame 130. An enclosure is formed relative to the auxiliary platform 310, thereby ensuring that the construction work can be carried out stably and reducing construction interruptions due to safety issues. In order to prevent the guardrail 330 from being squeezed against the connecting assembly 350 to produce bending deformation or cracks when the guardrail 330 is stored, the connecting assembly 350 can also be stored in the guardrail 330 to make full use of the space, thereby reducing damage and maintenance costs.

[0038] In addition, the main working basket 100 further includes a main platform 110, and the main platform 110 is connected to the fixed frame 130. Figure 1 and Figure 2As shown, the fixed frame 130 is vertically arranged around the main platform 110, and a lighting fixture 171, a welding rod tube 173, and a welding handle clamp tube 175 can be welded thereon to improve the convenience and safety of the workers in the expandable hanging basket device 10. The auxiliary work basket 300 also includes an auxiliary platform 310, and the auxiliary platform 310 is rotatably connected to the main platform 110, and the guardrail 330 is rotatably connected to the auxiliary platform 310, so as to realize folding or unfolding by turning over in sequence.

[0039] Based on the above configuration, specifically, when the expandable hanging basket device 10 provided by the present application needs to be unfolded, the auxiliary platform 310 is unfolded in the horizontal direction relative to the main platform 110 by folding once, thereby achieving the beneficial effect of expanding the working space of the staff. Afterwards, the guardrail 330 is unfolded in the vertical direction relative to the auxiliary platform 310 by folding twice, and the guardrail 330 and the fixed frame 130 are connected by the connecting assembly 350, thereby realizing the enclosure relative to the auxiliary platform 310, and improving the safety of the staff when constructing on the auxiliary platform 310.

[0040] When the expandable hanging basket device 10 provided by the present application needs to be unfolded, the connecting assembly 350 and the fixed frame 130 are disassembled accordingly, and the connecting assembly 350 is stored in the guardrail 330 to avoid interference between the two. Then, the guardrail 330 and the auxiliary platform 310 are flipped and stored twice, and the guardrail 330 is sandwiched between the auxiliary platform 310 and the fixed frame 130 to achieve limited fixation. Finally, the locking assembly 500 used to lock the auxiliary working basket 300 relative to the fixed frame 130 is locked to achieve storage.

[0041] See also Figure 3 , Figure 3 The embodiment of the utility model provides Figure 2 Enlarged schematic diagram at A in the middle. In some embodiments, the locking assembly 500 includes a locking piece 510 and a locking rod 530, the locking piece 510 is fixedly connected to the auxiliary work basket 300, and the locking rod 530 can pass through the locking piece 510 and the fixed frame 130 in sequence. In other words, the locking piece 510 is provided with a through slot for the locking rod 530 to pass through, and the locking rod 530 can be slidably connected relative to the through slot, and when the expandable hanging basket is stored, the locking rod 530 passes through the fixed frame 130 and the locking piece 510 at the same time, thereby locking the auxiliary work basket 300 on the fixed frame 130, and at the same time clamping the guardrail 330 to avoid occupying the space of the main platform 110 and improve compactness.

[0042] In order to facilitate the locking rod 530 to be fixed to the auxiliary work basket 300 in both the unlocked state and the locked state, the locking assembly 500 further includes a locking pin 550 connected to the locking rod 530, and a guide member 570 connected to the auxiliary work basket 300, and the guide member 570 is provided with a first groove 571 and a second groove 573 along the sliding direction of the locking rod 530, and the first groove 571 and the second groove 573 can both cooperate with the locking pin 550. It can be understood that, if Figure 3 As shown, when the locking pin 550 and the first groove 571 cooperate, the auxiliary work basket 300 and the fixed frame 130 are unlocked; when the locking pin 550 and the second groove 573 cooperate, the auxiliary work basket 300 and the fixed frame 130 are locked. Optionally, the locking piece 510 and the guide member 570 are both connected to the auxiliary platform 310.

[0043] In other embodiments, the locking assembly 500 can be configured as a snap lock, that is, any one of the auxiliary work basket 300 and the fixed frame 130 is provided with a protrusion, and the other is provided with a groove that matches the protrusion, and the two are connected to achieve locking. Alternatively, the locking assembly 500 can also be configured as a padlock, including a U-shaped lock body that can pass through the auxiliary work basket 300 and the fixed frame 130 at the same time and a lock core that matches the U-shaped lock body.

[0044] In addition, it should be noted that when the expandable hanging basket device 10 includes two or more auxiliary work baskets 300 for multi-directional deployment, the auxiliary work baskets 300 can be deployed or stored independently of each other, or can be deployed or stored in association with each other.

[0045] by Figure 1 and Figure 2 For example, the expandable hanging basket device 10 includes three auxiliary work baskets 300, namely the first auxiliary work basket 300, the second auxiliary work basket 300 and the third auxiliary work basket 300, wherein the first auxiliary work basket 300 and the second auxiliary work basket 300 are arranged at opposite ends of the main platform 110 along the length direction, and can expand the activity space of the staff in the length direction of the main platform 110. In addition, the main platform 110 is provided with a retaining wall 111 at opposite ends along the width direction, and the third auxiliary work basket 300 is rotatably connected to the main platform 110 through the retaining wall 111. In addition, the width dimension of the auxiliary platform 310 in the third work basket is smaller than the length dimension of the main platform 110.

[0046] It can be understood that the auxiliary work baskets 300 on the opposite sides of the main platform 110, such as the first auxiliary work basket 300 and the second auxiliary work basket 300, can be flipped in association or independently; multiple auxiliary work baskets 300 on the same side of the main platform 110, such as multiple third auxiliary work baskets 300 arranged on one side of the main platform 110, can also be flipped in association or independently.

[0047] Please refer again Figure 1 In order to improve the safety of the auxiliary work basket 300 when it is deployed, the auxiliary work basket 300 also includes a diagonal member 370 connected between the fixed frame 130 and the auxiliary platform 310. It should be noted that when the auxiliary work basket 300 is deployed relative to the main work basket 100, the diagonal member 370 is diagonally stretched between the auxiliary platform 310 and the fixed frame 130, that is, the diagonal member 370, the auxiliary platform 310 and the fixed frame 130 form a stable triangular structure, which enhances stability and improves work safety. In addition, it should be noted that the diagonal member 370 is specifically a flexible diagonal member 370, and its deployment length is adapted to the deployment angle of the auxiliary platform 310.

[0048] In some embodiments, in order to improve the flexibility and freedom of the diagonal brace member 370 when it is deployed, please refer to Figure 4 , Figure 4 The embodiment of the utility model provides Figure 1 The diagonal brace 370 also includes a first diagonal brace 371 hinged to the fixed frame 130 and a second diagonal brace 373 hinged to the auxiliary platform 310, and the first diagonal brace 371 and the second diagonal brace 373 are movably connected. In other embodiments, the diagonal brace 370 can be configured as a flexible diagonal brace 370, such as a chain, a wire rope, or a rope, with both ends respectively fixedly connected to the auxiliary platform 310 and the fixed frame 130.

[0049] Optionally, in order to improve the rapidity of adjustment of the inclined brace 370 and the adaptability to multiple scenarios, a slide groove 3731 is provided at one end of the second inclined brace 373 away from the secondary platform 310, and a sliding member 3711 cooperating with the slide groove 3731 is provided at one end of the first inclined brace 371 away from the fixed frame 130. Based on the above arrangement, the relative position between the first inclined brace 371 and the second inclined brace 373 can be adjusted to ensure that the two can always be arranged in the same line, so as to always form a stable triangular structure with the secondary platform 310 and the fixed frame 130, provide inclined pulling force, and reduce the support burden of the protective assembly. In other embodiments, the first inclined brace 371 can be sleeved on the second inclined brace 373, and the two form a retractable structure.

[0050] See also Figure 5 and Figure 6Next, the guardrail 330 and the connecting assembly 350 will be described in detail. In some embodiments, in order to evenly distribute the load on both sides of the sub-platform 310, the guardrail 330 includes two hinged rods 331 and a support rod 333, and the two hinged rods 331 are respectively hinged on both sides of the sub-platform 310 to avoid tilting due to uneven load; and the guardrail 330 also includes a support rod 333, and the two ends of the support rod 333 are respectively connected to the two hinged rods 331, so that the two hinged rods 331 rotate synchronously. On the basis of the above, the connecting assembly 350 is rotatably connected to the support rod 333 and can be stored between the two hinged rods 331 to improve space utilization, and the connecting assembly 350 collides or squeezes the hinged rod 331.

[0051] Specifically, the connecting assembly 350 includes two connecting rods 351, and the guardrail 330 also includes two rotating shafts 335 respectively perpendicular to the two ends of the support rod 333; and the connecting rod 351 is rotatably connected to the support rod 333 through the rotating shaft 335. In other words, the axis of the rotating shaft 335 is parallel to the extension line of the hinge rod 331. When the connecting rod 351 rotates with the rotating shaft 335 as the rotation center, it can be stored as a horizontal axis between the two hinge rods 331. In addition, the rotating shaft 335 can also be set as a ball head and a universal joint to improve the multi-directional rotation capability and achieve the purpose of fully utilizing the storage space.

[0052] In order to facilitate the adjustment of the length of the connecting rod 351 to adapt to the unfolded size of the platform, the connecting rod 351 is configured as a telescopic rod structure. It can be understood that based on the above configuration, it is possible to avoid the size of the connecting rod 351 being limited to the spacing between the two hinged rods 331, thereby increasing the scope of application. In addition, the telescopic rod can also be quickly unfolded and used to improve construction efficiency. In other embodiments, the telescopic rod can be replaced with a folding rod, and the length can be adjusted by a folding mechanism. In addition, it should be noted that, accordingly, the sub-platform 310 can also be configured as a multi-stage telescopic platform, so as to further expand the workspace when unfolded, or avoid the occupation of the workspace when retracted.

[0053] In order to prevent the two connecting rods 351 from colliding with each other when being stored, the guardrail 330 further includes a stopper 334, and the stopper 334 is sleeved on any one of the rotating shafts 335 and is located between the connecting rod 351 and the supporting rod 333. The length of the stopper 334 is greater than the thickness of the connecting rod 351. Based on the above arrangement, the two connecting rods 351 can be stored as shown in FIG. Figure 6 As shown, they are staggered with each other, thereby more effectively utilizing limited space in a compact environment and ensuring that the expanded length of the connecting rod 351 is not restricted or affected.

[0054] To achieve a detachable connection between the connecting assembly 350 and the fixed frame 130, as shown in FIG. Figure 7 As shown, Figure 7 The embodiment of the utility model provides Figure 1 An enlarged schematic diagram of point C in the middle. In some embodiments, the connecting assembly 350 also includes a latch member 353, the fixed frame 130 is provided with a latch portion 131, and the end of the connecting rod 351 away from the rotating shaft 335 cooperates with the latch portion 131 through the latch member 353. Based on the above arrangement, a larger pulling force is provided to prevent the secondary platform 310 and the guardrail 330 from shaking and loosening relative to the main platform 110, causing the operator to fall. In other embodiments, the detachable manner of the connecting rod 351 and the fixed frame 130 can also be set to a snap connection or a pin connection, which will not be repeated in this application.

[0055] Taking the expandable hanging basket device 10 provided in the present application as an example, its specific workflow and working principle are as follows:

[0056] When the auxiliary work basket 300 is unfolded relative to the main work basket 100, the worker flips the auxiliary platform 310 horizontally relative to the main platform 110, thereby achieving the beneficial effect of expanding the worker's working space; at this time, the sliding member 3711 is adjusted to a suitable position, the first inclined member 371 and the second inclined member 373 are colinear, and together with the auxiliary platform 310 and the fixed frame 130, they form a stable triangular structure.

[0057] Afterwards, through a second flip, the guardrail 330 is unfolded in the vertical direction relative to the sub-platform 310, and the connecting rod 351, which is rotatably connected to the hinge rod 331, is fixed to the latch part 131 of the fixed frame 130 through the latch part 353, forming a protective space enclosed in the sub-platform 310, thereby improving operational safety.

[0058] When the auxiliary work basket 300 is stored relative to the main work basket 100, the latch 353 is disassembled, the connecting rod 351 is separated from the fixed frame 130, and the connecting rod 351 is stored in the two hinged rods 331. After that, the hinged rod 331 and the auxiliary platform 310 are stored in turn through two flips, and the guardrail 330 is sandwiched between the auxiliary platform 310 and the fixed frame 130 to achieve limited fixation. Then move the locking rod 530 to the second position to ensure that it passes through the locking piece 510 and the fixed frame 130 at the same time, so that the auxiliary platform 310 and the guardrail 330 are locked on the fixed frame 130, avoiding occupying the space of the main platform 110 and improving compactness.

[0059] In summary, the present application provides an expandable hanging basket device 10 and an arch trolley, which include a main work basket 100 and at least one auxiliary work basket 300. Among them, the main work basket 100 includes a fixed frame 130, and the auxiliary work basket 300 includes a guardrail 330 and a connecting assembly 350. On the basis of the above, in order to prevent the auxiliary platform 310 from tilting or tipping over when unfolded, the connecting assembly 350 is rotatably connected to the guardrail 330 and detachably connected to the fixed frame 130 to form an enclosure relative to the auxiliary platform 310, thereby ensuring that the construction work can be carried out stably and reducing construction interruptions caused by safety issues. In order to prevent the guardrail 330 from being squeezed against the connecting assembly 350 to produce bending deformation or cracks when the guardrail 330 is stored, the connecting assembly 350 can also be stored in the guardrail 330 to make full use of the space, thereby reducing damage and maintenance costs.

[0060] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An expandable hanging basket device, characterized in that: include: A main working basket (100), wherein the main working basket (100) comprises a fixed frame (130); At least one auxiliary work basket (300), the auxiliary work basket (300) is rotatably connected to the main work basket (100), the auxiliary work basket (300) comprises a guardrail (330) and a connecting assembly (350), the connecting assembly (350) is rotatably connected to the guardrail (330), and is detachably connected to the fixed frame (130), and can be stored in the guardrail (330).

2. The expandable hanging basket device according to claim 1, characterized in that: The main working basket (100) further comprises a main platform (110), and the auxiliary working basket (300) further comprises an auxiliary platform (310), wherein the auxiliary platform (310) is rotatably connected to the main platform (110), and the guardrail (330) is rotatably connected to the auxiliary platform (310).

3. The expandable hanging basket device according to claim 2, characterized in that: The guardrail (330) includes two hinged rods (331) and a support rod (333), and the two hinged rods (331) are respectively hinged to the two sides of the sub-platform (310), and the two ends of the support rod (333) are respectively connected to the two hinged rods (331); the connecting assembly (350) is rotatably connected to the support rod (333) and can be stored between the two hinged rods (331).

4. The expandable hanging basket device according to claim 3, characterized in that: The connecting assembly (350) includes two connecting rods (351), and the guardrail (330) also includes two rotating shafts (335) respectively perpendicular to the two ends of the support rod (333); and the connecting rod (351) is rotatably connected to the support rod (333) via the rotating shafts (335).

5. The expandable hanging basket device according to claim 4, characterized in that: The connection assembly (350) further comprises a latch member (353), the fixed frame (130) is provided with a latch portion (131), and one end of the connection rod (351) away from the rotating shaft (335) is fixed to the latch portion (131) via the latch member (353).

6. The expandable hanging basket device according to claim 4, characterized in that: The guardrail (330) further comprises a limiting member (334), and the limiting member (334) is sleeved on any one of the rotating shafts (335) and is located between the connecting rod (351) and the supporting rod (333), and the length of the limiting member (334) is greater than the thickness of the connecting rod (351).

7. The expandable hanging basket device according to claim 4, characterized in that: The connecting rod (351) is configured as a telescopic rod structure.

8. The expandable hanging basket device according to any one of claims 1 to 7, characterized in that: The expandable hanging basket device (10) further comprises a locking assembly (500) for locking the auxiliary working basket (300) relative to the fixed frame (130); the locking assembly (500) comprises a locking plate (510) and a locking rod (530); the locking plate (510) is connected to the auxiliary working basket (300); and the locking rod (530) can pass through the locking plate (510) and the fixed frame (130) in sequence.

9. The expandable hanging basket device according to claim 8, characterized in that: The locking assembly (500) further comprises a locking pin (550) connected to the locking rod (530), and a guide member (570) connected to the auxiliary working basket (300), and the guide member (570) is provided with a first groove (571) and a second groove (573) along the sliding direction of the locking rod (530), and the first groove (571) and the second groove (573) are both capable of cooperating with the locking pin (550).

10. An arch trolley, characterized in that: It comprises a lifting device and an expandable hanging basket device (10) according to any one of claims 1 to 9, and the expandable hanging basket device (10) is connected to the lifting device.

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