Aerial work platform

Abstract

This application relates to the field of aerial work platforms and discloses an aerial work platform comprising: a chassis equipped with a steering cylinder, a lifting cylinder, and a power unit; a liquid collection device disposed on the steering cylinder for receiving leakage from the steering cylinder; a cylinder liquid collection assembly disposed on the chassis for receiving leakage from the lifting cylinder; and a liquid collection component disposed on the chassis for receiving leakage from the power unit. The aerial work platform of this application can collect leakage from the steering cylinder, lifting cylinder, and power unit, which helps to improve the leakage problem of aerial work platforms.

Description

Technical Field

[0001] This application belongs to the field of work machinery, specifically relating to an aerial work platform. Background Technology

[0002] Currently, aerial work platforms are used in factories, warehouses, supermarkets, and offices. These locations have high requirements for the cleanliness of the ground environment. During the operation of the aerial work platform, there should be no hydraulic oil leakage onto the ground. However, existing aerial work platforms still have leakage problems during operation, resulting in a poor user experience. Summary of the Invention

[0003] The purpose of this application is to provide an aerial work platform that helps to improve the leakage problem of aerial work platforms.

[0004] To achieve the above objectives, this application provides an aerial work platform, which includes:

[0005] The chassis is equipped with a steering cylinder, a lifting cylinder, and a power unit.

[0006] A liquid collection device is installed on the steering cylinder and is used to receive the leakage of the steering cylinder;

[0007] A hydraulic cylinder fluid collection assembly is mounted on the chassis and is used to receive leakage fluid from the lifting hydraulic cylinder;

[0008] A liquid collection assembly is mounted on the chassis and is used to receive leakage from the power unit.

[0009] In some specific embodiments, the chassis is provided with a maintenance opening and a door that can cover the maintenance opening. The power unit is disposed in the chassis. The liquid collection assembly is located below the power unit and includes a power unit liquid receiving tray and a liquid receiving tray mounting component. The liquid receiving tray mounting component has a liquid receiving tray groove. The power unit liquid receiving tray is slidably disposed in the liquid receiving tray groove and is provided with a liquid receiving cavity for receiving leakage from the power unit.

[0010] When the door is closed, it can lock the liquid receiving tray of the power unit in the liquid receiving tray groove, and when the door is open, the liquid receiving tray of the power unit can be pulled out from the liquid receiving tray groove.

[0011] In some specific embodiments, the liquid receiving tray groove extends through the sliding direction of the liquid receiving tray of the power unit, and the liquid collection assembly further includes a liquid receiving tray limiting member for limiting the liquid receiving tray of the power unit, the liquid receiving tray limiting member being disposed inside the liquid receiving tray groove along the sliding direction.

[0012] In some specific embodiments, the chassis is provided with a strip-shaped hole along the sliding direction, and the liquid receiving tray limiting member is adjustablely disposed in the strip-shaped hole by means of fasteners.

[0013] In some specific embodiments, the steering cylinder is rotatably mounted on the chassis, and the liquid collection device swings synchronously with the steering cylinder. The liquid collection device includes a detachable steering cylinder liquid receiving tray, which has a receiving cavity for receiving leakage from the steering cylinder.

[0014] In some specific embodiments, the liquid collection device further includes a liquid receiving tray mounting base, on which the steering cylinder liquid receiving tray is detachably mounted. The liquid receiving tray mounting base is provided with a connecting part for connecting to the cylinder body of the steering cylinder.

[0015] In some specific embodiments, the liquid receiving tray mounting base further includes a liquid collecting tray disposed below the cylinder body of the steering cylinder. The liquid collecting tray has an oil outlet. The steering cylinder liquid receiving tray is located below the oil outlet. The liquid collecting tray extends along the axial direction of the steering cylinder. The vertical projection of the cylinder body of the steering cylinder is located within the vertical projection of the liquid collecting tray. The vertical projection area of ​​the liquid receiving cavity is less than or equal to half of the vertical projection area of ​​the liquid collecting tray.

[0016] In some specific embodiments, the aerial work platform further includes:

[0017] An installation structure is mounted on the chassis. The bottom of the installation structure has a hollowed-out portion. The lifting cylinder is mounted on the installation structure and located above the hollowed-out portion. The cylinder fluid collection assembly includes a cylinder fluid receiving component and a baffle plate. The cylinder fluid receiving component is located in the hollowed-out portion and has a fluid receiving chamber for receiving leakage fluid from the lifting cylinder. The baffle plate is located on the installation structure and is used to guide the leakage fluid from the lifting cylinder into the fluid receiving chamber.

[0018] In some specific embodiments, the hydraulic cylinder fluid collection assembly includes two baffles spaced apart, with the inner side surfaces of the two baffles defining a fluid guide channel between the inner side surfaces of the two baffles and the outer wall surface of the mounting structure, and the lifting hydraulic cylinder located in the fluid guide channel.

[0019] In some specific embodiments, the lower ends of the two baffles are bent toward each other, so that the lower outlet of the liquid guide channel gradually narrows.

[0020] Since the steering cylinder, lifting cylinder, and power unit are the structures on the aerial work platform that are prone to leakage, by setting up liquid collection structures at the bottom of the steering cylinder, lifting cylinder, and power unit respectively, the liquid leakage collection effect of the entire aerial work platform can be greatly improved, reducing the risk of leakage during operation and providing a better user experience.

[0021] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0023] Figure 1 A schematic diagram of the structure of an aerial work platform according to a specific embodiment of this application is shown;

[0024] Figure 2 An exploded view of the power unit and liquid collection assembly is shown;

[0025] Figure 3 A schematic diagram of the lifting cylinder and the cylinder fluid collection assembly is shown.

[0026] Figure 4 An exploded view of the hydraulic cylinder fluid collection assembly is shown;

[0027] Figure 5 A schematic diagram of the steering cylinder and fluid collection device is shown.

[0028] Figure 6 It shows Figure 5 Exploded view of the liquid collection device in the image;

[0029] Figure 7 It shows Figure 6 An enlarged schematic diagram of the liquid collection device in the diagram.

[0030] Explanation of reference numerals in the attached figures

[0031] 1. Chassis 11. Mounting structural components

[0032] 12 doors, 2 steering cylinders

[0033] 21 Connecting ear 31 Steering cylinder fluid receiving plate

[0034] 32 Liquid receiving tray mounting base 321 Connecting part

[0035] 33 Liquid collection trays 34 Limiting structures

[0036] 341 Limiting shaft; 342 Elastic reset component

[0037] 343 bushing fastener 344 bushing

[0038] 345 locking element, 346 retaining ring

[0039] 35 Magnetic components 41 Hydraulic cylinder fluid receiving components

[0040] 42 Sliding groove 43 Baffle plate

[0041] 44 Locking Structure 441 Locking Shaft

[0042] 442 Elastic component 443 Fastener

[0043] 444 axis kit, 445 end limit component

[0044] 446 retaining ring part, 45 magnet part

[0045] 46 Liquid receiving parts limit parts 5 Lifting cylinder

[0046] 6 power unit 71 power unit liquid receiving tray

[0047] 72 Liquid receiving tray mounting component; 73 Liquid receiving tray limiting component

[0048] 74 magnets Detailed Implementation

[0049] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0050] In existing technologies, aerial work platforms often experience liquid leakage problems, which contaminate the ground in the working environment, affecting not only the cleanliness of the ground environment but also posing safety issues.

[0051] In view of this, such as Figures 1 to 7 As shown, this application provides an aerial work platform, which includes a chassis 1, a liquid collection device, a hydraulic cylinder liquid collection assembly, and a liquid collection component. The chassis 1 is equipped with a steering cylinder 2, a lifting cylinder 5, and a power unit 6. The liquid collection device is mounted on the steering cylinder 2 and is used to receive leakage from the steering cylinder 2. The hydraulic cylinder liquid collection assembly is mounted on the chassis 1 and is used to receive leakage from the lifting cylinder 5. The liquid collection component is mounted on the chassis 1 and is used to receive leakage from the power unit 6.

[0052] Since the steering cylinder 2, lifting cylinder 5, and power unit 6 are structures on the aerial work platform prone to leakage, by setting liquid-receiving structures at the bottom of the steering cylinder 2, lifting cylinder 5, and power unit 6 respectively, the leakage from the steering cylinder 2, lifting cylinder 5, and power unit 6 can be collected separately. This can greatly improve the liquid leakage collection effect of the entire aerial work platform, reduce the risk of leakage during operation, and provide a better user experience.

[0053] It should be noted that the structural principles of chassis 1, steering cylinder 2, lifting cylinder 5 and power unit 6 are well known to those skilled in the art and are not part of the core improvements of this application, so they will not be described in detail here.

[0054] Optionally, such as Figure 2 As shown, the chassis 1 has a maintenance opening and a door 12 that can cover the maintenance opening. The power unit 6 and the liquid collection assembly are respectively installed inside the chassis 1, with the liquid collection assembly located below the power unit 6. The liquid collection assembly includes a power unit liquid receiving tray 71 and a liquid receiving tray mounting component 72. The liquid receiving tray mounting component 72 has a liquid receiving tray groove, and the power unit liquid receiving tray 71 is slidably disposed in the liquid receiving tray groove and has a liquid receiving cavity for receiving leakage from the power unit 6. In this way, leakage from the power unit can be collected, thereby reducing the risk of leakage from the aerial work platform during operation.

[0055] Since the power unit 6 is usually located relatively close to the center of the chassis 1, the power unit liquid receiving tray 71 can usually only be removed in the left-right direction of the chassis 1. Because the chassis 1 usually needs to accommodate a large number of functional modules, the structure of the chassis 1 is relatively compact, the dimensions of the chassis 1 in the left-right direction are small, and the remaining usable space in the chassis 1 is often small, making it difficult to install a limiting structure to limit the power unit liquid receiving tray 71.

[0056] Furthermore, the chassis 1 typically has maintenance openings and doors 12 that can cover the maintenance openings on its left and right sides. Therefore, the door 12 of the aerial work platform of this application is designed to lock the power unit drip tray 71 in the drip tray groove when closed, and the power unit drip tray 71 can be pulled out from the drip tray groove when the door 12 is open. This eliminates the need for additional limiting structures in the chassis 1, resulting in a reasonable and compact overall structure for the aerial work platform, suitable for chassis with limited installation space.

[0057] It should be noted that the aerial work platform can be, for example, a mast-type aerial work platform or a scissor lift platform. The respective structures of the power unit 6 and the chassis 1, as well as the rotating connection structure between them, can vary greatly. This is well known to those skilled in the art and is not part of the core improvement of this application, so it will not be described in detail here.

[0058] In some specific embodiments, to facilitate the manufacture of the liquid receiving tray mounting component 72, such as Figure 2 As shown, the liquid receiving tray groove can extend along the sliding direction of the power unit liquid receiving tray 71. At this time, the liquid collection assembly also includes a liquid receiving tray limiting member 73 for limiting the power unit liquid receiving tray 71. The liquid receiving tray limiting member 73 is disposed inside the liquid receiving tray groove along the sliding direction. Thus, when the power unit liquid receiving tray 71 is inserted into the liquid receiving tray groove, the liquid receiving tray limiting member 73 can limit the insertion depth of the power unit liquid receiving tray 71, thereby limiting the position of the power unit liquid receiving tray 71.

[0059] Optionally, the chassis 1 may be provided with a strip-shaped hole along the sliding direction of the liquid receiving tray 71 of the power unit, and the liquid receiving tray limiting member 73 may be adjusted in the strip-shaped hole by means of fasteners, so that the position of the liquid receiving tray limiting member 73 can be conveniently adjusted, and the structure is more reasonable.

[0060] Optionally, to facilitate manufacturing and reduce manufacturing costs, the power unit drip tray 71 and the drip tray mounting component 72 can be sheet metal parts. The groove of the drip tray mounting component 72 is provided with an outwardly bent guide flange, thereby facilitating the insertion of the power unit drip tray 71.

[0061] Optionally, the power unit liquid receiving tray 71 can be a sheet metal part, and the hydraulic cylinder liquid collection assembly can also include multiple magnets 74. The multiple magnets 74 are distributed on both sides of the liquid receiving tray groove along the sliding direction of the power unit liquid receiving tray 71, or the multiple magnets 74 can also be embedded in the bottom wall of the liquid receiving tray groove. In this way, the magnets 74 can attract the power unit liquid receiving tray 71, thereby eliminating the vibration and noise of the power unit liquid receiving tray 71 during the operation of the aerial work platform.

[0062] Optionally, for ease of opening, the door body 12 may be pivotally connected to the chassis 1. Alternatively, in some other embodiments, the door body 12 and the chassis 1 may be detachably connected by fasteners.

[0063] In some specific implementations, such as Figure 3 and Figure 4 As shown, the aerial work platform also includes an installation structure 11, which is located in the chassis 1. The bottom of the installation structure 11 has a hollowed-out section, and the lifting cylinder 5 is installed on the installation structure 11 and located above the hollowed-out section.

[0064] like Figure 3 and Figure 4As shown, the hydraulic cylinder fluid collection assembly may include a hydraulic cylinder fluid receiving component 41 and a baffle plate 43. The hydraulic cylinder fluid receiving component 41 is disposed in the hollowed-out section and has a fluid receiving chamber for receiving leakage fluid from the hydraulic cylinder. The baffle plate 43 is disposed on the mounting structure 11 and is used to guide the leakage fluid from the hydraulic cylinder into the fluid receiving chamber. Thus, because the hydraulic cylinder fluid receiving component 41 is provided under the hydraulic cylinder, the leakage fluid from the hydraulic cylinder can be collected, thereby reducing the risk of leakage of the aerial work platform during operation.

[0065] Because chassis 1 typically requires the arrangement of numerous functional modules, its structure is relatively compact, leaving limited usable space for installing large liquid collection structures. In this application, the hydraulic cylinder fluid receiving component 41 of the aerial work platform is located in a recessed section at the bottom of the mounting structure 11. This eliminates the need to alter the thickness of chassis 1 to install the hydraulic cylinder fluid collection assembly, resulting in a more rational and compact overall structure for the aerial work platform. This design is suitable for chassis 1 with limited installation space and helps reduce manufacturing costs.

[0066] In addition, since the mounting structure 11 of the hydraulic cylinder is equipped with a baffle plate 43, the leaked liquid can be collected and guided to the hydraulic cylinder receiving part 41, which can prevent the leaked liquid from seeping into other parts of the equipment and causing ground pollution.

[0067] The hydraulic cylinder fluid receiving component 41 and the baffle plate 43 can have various structural shapes, and their structures can be designed according to the installation structure of the hydraulic cylinder. The hydraulic cylinder can be a lifting hydraulic cylinder or other functional hydraulic cylinders, etc. The following description uses the lifting hydraulic cylinder 5 as an example to illustrate the hydraulic cylinder fluid collection assembly of this application.

[0068] In some specific embodiments, the hydraulic cylinder fluid collection assembly may include two spaced-apart baffles 43, the inner surfaces of which define a fluid guide channel between themselves and the outer peripheral wall of the mounting structure 11, with the lifting cylinder 5 located within the fluid guide channel. Thus, leakage from the lifting cylinder 5 can be guided from this fluid guide channel into the fluid receiving chamber of the hydraulic cylinder receiving member 41.

[0069] In some specific embodiments, in order to make the structure of the hydraulic cylinder fluid collection assembly more reasonable and compact, suitable for the limited space of the chassis 1, the lower ends of the two baffle plates 43 are bent towards each other, so that the lower outlet of the fluid guide channel gradually narrows. For example... Figure 3 and Figure 4 As shown, since the lifting cylinder 5 is located between the upper ends of the two baffle plates 43, the distance between the upper ends of the two baffle plates 43 is relatively large. By bending the lower ends of the two baffle plates 43 towards each other, the distance between the lower ends of the two baffle plates 43 can be made smaller than the distance between the upper ends of the two baffle plates 43. In this way, the hydraulic cylinder receiving part 41 can be made more compact.

[0070] Optionally, the excavated part can be installed through the mounting structure 11 along the front and rear direction of the chassis 1, and the front and rear ends of the liquid receiving cavity can extend out of the mounting structure 11 respectively. In this way, whether the aerial work platform is going uphill or downhill, the lower outlets of the front liquid guiding channel and the rear liquid guiding channel can be located above the liquid receiving cavity, so that the leaked liquid can be guided into the liquid receiving cavity through the front liquid guiding channel and the rear liquid guiding channel.

[0071] Optionally, such as Figure 3 and Figure 4 As shown, the mounting structure 11 extends along the left-right direction of the chassis 1, and the surfaces of the two baffle plates 43 extend along the front-back direction of the chassis 1. The two baffle plates 43 are arranged at intervals along the left-right direction of the chassis 1 and are provided with lower snap-fit ​​openings. The mounting structure 11 snaps into the lower snap-fit ​​openings to form a front liquid guiding channel and a rear liquid guiding channel with the two baffle plates 43. The lower outlets of the front liquid guiding channel and the rear liquid guiding channel are both located above the liquid receiving cavity.

[0072] Specifically, such as Figure 3 and Figure 4 As shown, a rearward liquid guiding channel is formed between the inner rear surface of the two baffle plates 43 and the top and rear sides of the mounting structure 11, and a frontward liquid guiding channel is formed between the inner front surface of the two baffle plates 43 and the top and front sides of the mounting structure 11. That is, the liquid guiding channel includes a connected frontward liquid guiding channel and a rearward liquid guiding channel. The lifting cylinder 5 is installed in the liquid guiding channel, and leaked liquid can be guided from either the frontward or rearward liquid guiding channel to the receiving chamber of the cylinder receiving component 41.

[0073] In some specific implementations, such as Figure 3 and Figure 4 As shown, the hydraulic cylinder fluid collection assembly may further include a chute 42, which is disposed in the hollowed-out portion and has a fluid receiving tray groove. The hydraulic cylinder fluid receiving component 41 is slidably disposed in the fluid receiving tray groove and can be removed from the fluid receiving tray groove. Since the hydraulic cylinder fluid receiving component 41 can be removed from the chute 42, it is convenient to clean up any leaks.

[0074] In some specific embodiments, to facilitate the manufacture of the slide 42, such as Figure 3 and Figure 4 As shown, the liquid receiving tray groove can extend along the sliding direction of the hydraulic cylinder liquid receiving component 41. In this case, the hydraulic cylinder liquid collection assembly may also include a liquid receiving component limiting member 46 for limiting the liquid receiving component 41. The liquid receiving component limiting member 46 is disposed inside the liquid receiving tray groove along the sliding direction. Thus, when the hydraulic cylinder liquid receiving component 41 is inserted into the liquid receiving tray groove, the liquid receiving component limiting member 46 can restrict the insertion depth of the hydraulic cylinder liquid receiving component 41, thereby limiting the liquid receiving component 41.

[0075] Optionally, the chassis 1 may be provided with a strip hole along the sliding direction of the hydraulic cylinder receiving part 41, and the receiving part limiting part 46 may be adjusted in the strip hole by means of fasteners, so that the position of the receiving part limiting part 46 can be conveniently adjusted, and the structure is more reasonable.

[0076] In some specific embodiments, the hydraulic cylinder liquid collection assembly may further include a locking structure 44, which has a locked state and an unlocked state. In the locked state, the locking structure 44 can lock the hydraulic cylinder receiving component 41 in the receiving tray groove. In the unlocked state, the hydraulic cylinder receiving component 41 can be pulled out from the receiving tray groove. This stably confines the hydraulic cylinder receiving component 41 within the sliding groove component 42, preventing it from coming loose during operation. The mounting structure and position of the locking structure 44 can be varied. For example, the locking structure 44 can be mounted on the sliding groove component 42 or the cylinder body of the mounting structure component 11; the locking structure 44 can be a snap-fit ​​structure between the hydraulic cylinder receiving component 41 and the sliding groove component 42; or the locking structure 44 can be a structure independent of the hydraulic cylinder receiving component 41, etc.

[0077] In some specific implementations, such as Figure 3 and Figure 4 As shown, the locking structure 44 may include a locking assembly, a locking shaft 441, and an elastic member 442. The locking shaft 441 is movably inserted into the locking assembly and is capable of axial movement. One end of the locking shaft 441 is provided with an expanded diameter shaft head. One end of the elastic member 442 abuts against the expanded diameter shaft head, and the other end of the elastic member 442 abuts against the locking assembly. In the locked state, the expanded diameter shaft head extends to the front of the groove opening of the liquid receiving tray and limits the hydraulic cylinder liquid receiving component 41 within the liquid receiving tray groove. In the unlocked state, the expanded diameter shaft head compresses the elastic member 442 and avoids the hydraulic cylinder liquid receiving component 41. Thus, the hydraulic cylinder liquid receiving component 41 can be locked and limited.

[0078] Furthermore, such as Figure 3 and Figure 4 As shown, in order to facilitate the manufacture and installation of the liquid collection device, the locking assembly includes a fixing member 443 and a shaft assembly 444. The fixing member 443 can be set on the chassis 1 or the mounting structure 11 and is provided with a shaft hole. The shaft assembly 444 is set in the shaft hole. The end of the locking shaft 441 away from the enlarged diameter shaft head is provided with an end limiting member 445.

[0079] Furthermore, such as Figure 3 and Figure 4As shown, retaining rings 446 are respectively provided between the expanded diameter shaft head and one axial side of the shaft assembly 444, and between the end limiting member 445 and the other axial side of the shaft assembly 444, which are inserted through the locking shaft 441. The elastic member 442 can abut against the retaining ring 446 and the expanded diameter shaft head, which are relatively close to the expanded diameter shaft head. In this way, the structure of the hydraulic cylinder fluid collection assembly is simpler and more reasonable.

[0080] Optionally, to facilitate manufacturing and reduce manufacturing costs, the hydraulic cylinder receiving part 41, the sliding groove part 42, and the baffle plate 43 can be sheet metal parts. The groove of the sliding groove part 42 has an outwardly bent guide flange, which facilitates the insertion of the hydraulic cylinder receiving part 41.

[0081] Optionally, the hydraulic cylinder receiving component 41 can be a sheet metal part, and the hydraulic cylinder liquid collection assembly can also include multiple magnets 45. The multiple magnets 45 are distributed on both sides of the liquid receiving tray groove along the sliding direction of the hydraulic cylinder receiving component 41, or the multiple magnets 45 can also be embedded in the bottom wall of the liquid receiving tray groove. In this way, the magnets 45 can attract the hydraulic cylinder receiving component 41, thereby eliminating the vibration and noise of the hydraulic cylinder receiving component 41 during the operation of the aerial work platform.

[0082] In some specific implementations, such as Figure 5 , Figure 6 and Figure 7 As shown, the aerial work platform may also include a steering cylinder 2 and a liquid collection device. The steering cylinder 2 is rotatably mounted on the chassis 1, and the liquid collection device is mounted on the cylinder body of the steering cylinder 2 and swings synchronously with the steering cylinder 2. The liquid collection device includes a detachable steering cylinder liquid receiving tray 31, which has a liquid receiving chamber for receiving leakage from the steering cylinder 2.

[0083] The steering cylinder 2 is rotatably mounted on the chassis 1. The steering cylinder 2 drives the linkage mechanism to move through its extension and retraction, thereby realizing the steering of the chassis 1. The liquid collection device is mounted on the cylinder body of the steering cylinder 2, so that it can swing synchronously with the steering cylinder 2.

[0084] Because the steering cylinder 2 oscillates, if a fixed liquid collection structure is installed below the steering cylinder 2, the liquid collection area of ​​the liquid collection structure would need to cover the movement path area of ​​the steering cylinder 2, resulting in a very large liquid collection structure. Furthermore, based on application requirements and manufacturing cost considerations, the overall structure and volume design of the chassis 1 are often compact and miniaturized as much as possible. However, the chassis 1 typically needs to accommodate many functional modules, leaving limited usable space for installing a large liquid collection structure.

[0085] In the aerial work platform of this application, the liquid collection device is installed on the cylinder body of the steering cylinder 2 and swings synchronously with the steering cylinder 2. It can not only collect the leakage of the steering cylinder 2, reducing the risk of leakage of the aerial work platform during operation, but also make the overall structure of the aerial work platform more reasonable and compact, suitable for use on the chassis 1 with limited installation space.

[0086] In some specific implementations, such as Figure 6 As shown, the cylinder body of the steering cylinder 2 is provided with a connecting lug 21, and the liquid collection device is mounted on the cylinder body through the connecting lug 21. The connecting lug 21 can be welded to the cylinder body of the steering cylinder 2, or the connecting lug 21 can be integrally formed with the cylinder body of the steering cylinder 2.

[0087] Alternatively, in some other embodiments, the liquid collection device can be fixedly connected to the cylinder body of the steering cylinder 2 by means of a ring clamp fitted on the cylinder body of the steering cylinder 2.

[0088] In some specific implementations, such as Figure 5 , Figure 6 and Figure 7 As shown, the liquid collection device may further include a liquid receiving tray mounting base 32, on which the steering cylinder liquid receiving tray 31 is detachably mounted. When the liquid receiving chamber is full, the steering cylinder liquid receiving tray 31 can be directly removed for cleaning, making the cleaning operation simple and convenient. The liquid receiving tray mounting base 32 may be provided with a connecting part 321, which is connected to the cylinder body of the steering cylinder 2. Figure 6 and Figure 7 As shown, the connecting part 321 has a mounting hole for connecting to the cylinder body of the steering cylinder 2, thereby enabling it to be connected to the connecting lug 21 by means of fasteners.

[0089] In some specific embodiments, the cylinder body of the steering cylinder 2 may be provided with an oil guiding structure (not shown in the figure). The oil guiding structure can guide the fluid leaking from the cylinder body of the steering cylinder 2 to the receiving chamber of the liquid collection device. The oil guiding structure can be welded to the cylinder body of the steering cylinder 2 or integrally formed on the cylinder body of the steering cylinder 2. The structure of the oil guiding structure can be varied, such as a guide plate or a guide column.

[0090] In some specific implementations, such as Figure 5 , Figure 6 and Figure 7 As shown, the liquid collection device also includes a liquid collection tray 33 located below the cylinder body of the steering cylinder 2. The liquid collection tray 33 has a liquid outlet, and the steering cylinder receiving tray 31 is located below the liquid outlet. By setting the liquid collection tray 33 and arranging it close to the steering cylinder 2, it is possible to effectively prevent liquid from splashing out when dripping, thus improving the liquid collection effect.

[0091] In some specific embodiments, the liquid collection plate 33 extends along the axial direction of the steering cylinder 2, and the vertical projection shape of the cylinder body of the steering cylinder 2 is matched with the vertical projection shape of the liquid collection plate 33. Furthermore, the vertical projection of the cylinder body of the steering cylinder 2 is located within the vertical projection of the liquid collection plate 33, thus achieving better liquid collection and a more compact structure.

[0092] Furthermore, in order to make the structure of the liquid collection device more compact, the minimum distance between the edge of the vertical projection of the cylinder body of the steering cylinder 2 and the edge of the vertical projection of the liquid collection plate 33 is less than or equal to 20mm.

[0093] Furthermore, due to the inclusion of the liquid collection tray 33, the structure of the steering cylinder liquid receiving tray 31 can be reduced in size, resulting in a more compact liquid collection device. For example, the vertical projected area of ​​the liquid receiving chamber of the steering cylinder liquid receiving tray 31 is less than or equal to half the vertical projected area of ​​the liquid collection tray 33. Figure 3 As shown, the steering cylinder liquid receiving plate 31 can be arranged on one side below the liquid collecting plate 33 along the axial direction of the steering cylinder 2. The other side below the liquid collecting plate 33 can be used to install other structures of the liquid collection device, such as limiting structures.

[0094] Optionally, such as Figure 5 As shown, the connecting part 321 can extend upward from the edge of the liquid collection tray 33, making the structure of the liquid collection device more compact and reasonable.

[0095] In some specific implementations, such as Figure 5 , Figure 6 and Figure 7 As shown, the liquid receiving tray mounting base 32 may be provided with an insertion slot, in which the steering cylinder liquid receiving tray 31 is detachably inserted. The liquid collection device also includes a limiting structure 34, which has a locked state and an unlocked state. In the locked state, the limiting structure 34 can lock the steering cylinder liquid receiving tray 31 in the insertion slot, and in the unlocked state, the steering cylinder liquid receiving tray 31 can be pulled out from the insertion slot. In this way, the steering cylinder liquid receiving tray 31 can be stably limited in the liquid receiving tray mounting base 32, preventing the steering cylinder liquid receiving tray 31 from coming out during operation. The installation structure and position of the limiting structure 34 can be varied. For example, the limiting structure 34 can be set on the liquid receiving plate mounting seat 32 or the cylinder body of the steering cylinder 2; the limiting structure 34 can be a snap-fit ​​structure between the steering cylinder liquid receiving plate 31 and the liquid receiving plate mounting seat 32; or the limiting structure 34 can be a structure set independently of the steering cylinder liquid receiving plate 31, etc.

[0096] Specifically, such as Figure 5As shown, the steering cylinder 2 is arranged along the left-right direction of the chassis 1 and is located above the travel wheels and wheel covers. The fluid collection tray 33 is a flat disc shape. The thickness of the steering cylinder fluid receiving tray 31 is greater than the thickness of the fluid collection tray 33. Thus, the fluid collection tray 33 can extend along the axial direction of the steering cylinder 2 and be arranged in the narrow gap between the steering cylinder 2 and the wheel cover. The steering cylinder fluid receiving tray 31 is arranged along the axial direction of the steering cylinder 2 on the inner side below the fluid collection tray 33. In this way, the outer side below the fluid collection tray 33 can form space to avoid the wheel cover and other components, resulting in a reasonable and compact structure.

[0097] In some specific implementations, such as Figure 5 , Figure 6 and Figure 7 As shown, the limiting structure 34 may include a limiting component, a limiting shaft 341, and an elastic reset member 342. The limiting component may be disposed on the drip tray mounting base 32 or the cylinder body of the steering cylinder 2. The limiting shaft 341 is movably inserted through the limiting component and can move axially. One end of the limiting shaft 341 is provided with an expanded diameter shaft head. One end of the elastic reset member 342 abuts against the expanded diameter shaft head, and the other end of the elastic reset member 342 abuts against the limiting component. When the limiting structure 34 is in the locked state, the expanded diameter shaft head extends to the front of the slot opening and limits the steering cylinder drip tray 31 within the slot. When the limiting structure 34 is in the unlocked state, the expanded diameter shaft head compresses the elastic reset member 342 and avoids the steering cylinder drip tray 31. Thus, the steering cylinder drip tray 31 can be locked and limited.

[0098] Furthermore, such as Figure 6 and Figure 7 As shown, in order to facilitate the manufacture and installation of the liquid collection device, the limiting component may include a bushing fixing member 343 and a bushing 344. The bushing fixing member 343 is disposed on the liquid receiving tray mounting base 32 and has a shaft hole, and the bushing 344 is disposed in the shaft hole. The end of the limiting shaft 341 away from the enlarged diameter shaft head is provided with a locking member 345.

[0099] Furthermore, such as Figure 6 and Figure 7 As shown, retaining rings 346 are respectively provided between the axial side of the expanding shaft head and the bushing 344, and between the locking member 345 and the bushing 344 on the other axial side, which are inserted through the limiting shaft 341. The elastic reset member 342 can abut against the retaining ring 346 which is relatively close to the expanding shaft head and the expanding shaft head. In this way, the structure of the liquid collection device can be made simpler and more reasonable.

[0100] In some specific embodiments, the steering cylinder fluid receiving plate 31 can be a sheet metal part, and the bottom wall of the insertion slot can be provided with a magnetic part 35 for magnetic adsorption of the steering cylinder fluid receiving plate 31. The magnetic part 35 can be a ring and can be adjusted to a suitable installation height by fasteners and adjusting shims, thereby eliminating the vibration and noise of the steering cylinder fluid receiving plate 31 during the operation of the aerial work platform.

[0101] Optionally, the hydraulic cylinder receiving plate 31 may be equipped with a liquid-absorbing component, such as oil-absorbing cotton, so as to prevent the leakage in the receiving cavity from overflowing during the operation of the aerial work platform.

[0102] In summary, the aerial work platform of this application is equipped with devices for collecting leaks from the steering cylinder, lifting cylinder, and power unit, which can significantly improve the overall liquid leakage collection efficiency of the aerial work platform and has good application prospects in work environments with high requirements. Furthermore, all liquid-receiving components of the device are detachable, facilitating cleaning and return of the collected leaked liquid, making operation simple and maintenance convenient. The bottom of the device uses magnetic components to attract the liquid-receiving components, preventing vibration and noise during operation. Additionally, limiters are located on all four sides to eliminate the risk of the liquid-receiving components falling off during operation.

[0103] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0104] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0105] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0106] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An aerial work platform, characterized in that, include: The chassis (1) is equipped with a steering cylinder (2), a lifting cylinder (5) and a power unit (6); A liquid collection device is provided on the steering cylinder (2) and is used to receive the leakage of the steering cylinder (2); A hydraulic cylinder fluid collection assembly is mounted on the chassis (1) and is used to receive the leakage of the lifting hydraulic cylinder (5); A liquid collection assembly is provided on the chassis (1) and is used to receive the leakage of the power unit (6); The steering cylinder (2) is rotatably mounted on the chassis. The liquid collection device swings synchronously with the steering cylinder (2). The liquid collection device includes a detachable steering cylinder liquid receiving tray (31). The steering cylinder liquid receiving tray (31) is provided with a liquid receiving chamber for receiving the leakage of the steering cylinder (2). The liquid collection device also includes a liquid receiving tray mounting base (32), and the liquid receiving tray (31) of the steering cylinder is detachably mounted on the liquid receiving tray mounting base (32). The liquid receiving tray mounting base (32) is provided with a connecting part (321), which is used to connect with the cylinder body of the steering cylinder (2). The liquid receiving plate mounting base (32) also includes a liquid collecting plate (33) disposed below the cylinder body of the steering cylinder (2). The liquid collecting plate (33) is provided with an oil outlet. The steering cylinder liquid receiving plate (31) is located below the oil outlet. The liquid collecting plate (33) extends along the axial direction of the steering cylinder (2). The vertical projection of the cylinder body of the steering cylinder (2) is located within the vertical projection of the liquid collecting plate (33). The vertical projection area of ​​the liquid receiving cavity is less than or equal to half of the vertical projection area of ​​the liquid collecting plate (33). The liquid collecting plate (33) is flat and disc-shaped. The steering cylinder liquid receiving plate (31) is disposed along the axial direction of the steering cylinder (2) on the inner side below the liquid collecting plate (33).

2. The aerial work platform according to claim 1, characterized in that, The chassis (1) is provided with a maintenance opening and a door (12) that can cover the maintenance opening. The power unit (6) is located inside the chassis (1). The liquid collection assembly is located below the power unit (6) and includes a power unit liquid receiving tray (71) and a liquid receiving tray mounting component (72). The liquid receiving tray mounting component (72) has a liquid receiving tray groove. The power unit liquid receiving tray (71) is slidably disposed in the liquid receiving tray groove and is provided with a liquid receiving cavity for receiving the leakage of the power unit (6). When the door (12) is closed, it can lock the liquid receiving tray (71) of the power unit in the liquid receiving tray groove. When the door (12) is open, the liquid receiving tray (71) of the power unit can be pulled out from the liquid receiving tray groove.

3. The aerial work platform according to claim 2, characterized in that, The liquid receiving tray groove extends along the sliding direction of the power unit liquid receiving tray (71). The liquid collection assembly also includes a liquid receiving tray limiting member (73) for limiting the power unit liquid receiving tray (71). The liquid receiving tray limiting member (73) is disposed on the inner side of the liquid receiving tray groove along the sliding direction.

4. The aerial work platform according to claim 3, characterized in that, The chassis (1) is provided with a strip hole along the sliding direction, and the liquid receiving tray limiting member (73) is adjustablely disposed in the strip hole by means of fasteners.

5. The aerial work platform according to claim 1, characterized in that, The aerial work platform also includes: Mounting structure (11) is mounted on the chassis (1). The bottom of the mounting structure (11) is provided with a hollowed-out portion. The lifting cylinder (5) is mounted on the mounting structure (11) and located above the hollowed-out portion. The cylinder liquid collection assembly includes a cylinder liquid receiving component (41) and a baffle plate (43). The cylinder liquid receiving component (41) is located in the hollowed-out portion and has a liquid receiving chamber for receiving the leakage of the lifting cylinder (5). The baffle plate (43) is located on the mounting structure (11) and is used to guide the leakage of the lifting cylinder (5) into the liquid receiving chamber.

6. The aerial work platform according to claim 5, characterized in that, The hydraulic cylinder liquid collection assembly includes two baffles (43) spaced apart. The inner side of the two baffles (43) and the outer wall of the mounting structure (11) define a liquid guide channel. The lifting cylinder (5) is located in the liquid guide channel.

7. The aerial work platform according to claim 6, characterized in that, The lower ends of the two baffles (43) are bent toward each other so that the lower outlet of the liquid guide channel gradually narrows.

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