Aerial work platform

Abstract

The invention relates to the field of aerial work platforms, and discloses an aerial work platform which comprises a chassis, a base plate and a lifting device. The steering oil cylinder is rotatably arranged on the chassis; the liquid collecting device is arranged on a cylinder body of the steering oil cylinder and swings synchronously with the steering oil cylinder, the liquid collecting device comprises a detachable steering oil cylinder liquid receiving disc and a liquid receiving disc mounting seat, and the steering oil cylinder liquid receiving disc is provided with a liquid receiving cavity used for receiving leaked liquid of the steering oil cylinder. The steering oil cylinder liquid receiving disc is detachably arranged on the liquid receiving disc mounting seat, the liquid receiving disc mounting seat is provided with a connecting part, and the connecting part is used for being connected with a cylinder body of a steering oil cylinder. The liquid receiving disc mounting base further comprises a liquid collecting disc arranged below the cylinder body of the steering oil cylinder, a liquid outlet is formed in the liquid collecting disc, and the liquid receiving disc of the steering oil cylinder is located below the liquid outlet. According to the aerial work platform, leaked liquid of the steering oil cylinder can be collected, and the liquid leakage problem of the aerial work platform can be solved.

Description

Technical Field

[0001] The present application belongs to the field of engineering machinery, and specifically relates to an aerial work platform. Background Art

[0002] At present, aerial work platforms have been used in factories, warehouses, supermarkets, offices and other places. These application places have high requirements for the cleanliness of the ground environment. During the operation of the aerial work platform, hydraulic oil must not leak onto the ground of the workplace. However, existing aerial work platforms still have leakage problems during operation, resulting in poor user experience. Summary of the Invention

[0003] The purpose of this application is to provide an aerial work platform, which is conducive to improving the leakage problem of the aerial work platform.

[0004] In order to achieve the above objectives, the present application provides an aerial work platform, which includes:

[0005] chassis;

[0006] A steering cylinder rotatably disposed on the chassis;

[0007] The liquid collecting device is arranged on the cylinder body of the steering cylinder and swings synchronously with the steering cylinder. The liquid collecting device includes a detachable steering cylinder liquid collecting pan, and the steering cylinder liquid collecting pan is provided with a liquid collecting cavity for receiving liquid leakage from the steering cylinder.

[0008] In some specific embodiments, the cylinder body of the steering cylinder may be provided with a connecting ear integrally formed with the cylinder body, and the liquid collecting device is mounted on the cylinder body through the connecting ear.

[0009] In some specific embodiments, an oil guide structure may be provided on the cylinder body of the steering cylinder.

[0010] In some specific embodiments, the liquid collection device may further include a liquid collecting pan mounting seat, the steering cylinder liquid collecting pan is detachably disposed on the liquid collecting pan mounting seat, and the liquid collecting pan mounting seat is provided with a connecting portion, which is connected to the cylinder body of the steering cylinder.

[0011] In some specific embodiments, the liquid collecting device may further include a liquid collecting pan disposed below the cylinder body of the steering cylinder, the liquid collecting pan being provided with a liquid outlet, and the steering cylinder liquid collecting pan being located below the liquid outlet.

[0012] In some specific embodiments, the connecting portion may extend upward from an edge of the liquid collecting pan and have a mounting hole connected to a cylinder body of the steering cylinder.

[0013] In some specific embodiments, the liquid collecting pan may extend along the axial direction of the steering cylinder, and a vertical projection of the cylinder body of the steering cylinder is located within the vertical projection of the liquid collecting pan.

[0014] In some specific embodiments, the liquid collecting pan mounting seat may be provided with an insertion slot, and the steering cylinder liquid collecting pan can be detachably inserted into the insertion slot. The liquid collecting device also includes a limiting structure, and the limiting structure has a locked state and an unlocked state. In the locked state, the limiting structure can lock the steering cylinder liquid collecting pan in the insertion slot, and the steering cylinder liquid collecting pan can be pulled out of the insertion slot in the unlocked state of the limiting structure.

[0015] In some specific embodiments, the limiting structure may include:

[0016] Limiting components;

[0017] A limiting shaft is movably arranged in the limiting assembly and can move in the axial direction, and one end of the limiting shaft is provided with an expanded diameter shaft head;

[0018] an elastic return member, one end of which abuts against the expanded-diameter shaft head, and the other end of which abuts against the limit assembly;

[0019] Wherein, when the limiting structure is in a locked state, the expanded diameter shaft head extends to the front of the notch of the insertion slot and limits the steering cylinder liquid receiving pan in the insertion slot; when the limiting structure is in an unlocked state, the expanded diameter shaft head compresses the elastic return part and avoids the steering cylinder liquid receiving pan.

[0020] In some specific embodiments, a magnetic component for magnetically adsorbing the steering cylinder liquid receiving pan may be provided on the bottom wall of the insertion slot.

[0021] Through the above technical solution, since the liquid collection device is installed on the cylinder body of the steering cylinder and swings synchronously with the steering cylinder, it can collect leaked liquid from the steering cylinder, reducing the risk of liquid leakage during operation of the aerial work platform. In addition, the liquid collection device of the present application is installed on the cylinder body of the steering cylinder, making the overall structure of the aerial work platform reasonable and compact, suitable for installation on a chassis with limited space.

[0022] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without inventive work. In the drawings:

[0024] Figure 1 A schematic structural diagram of an aerial work platform according to a specific embodiment of the present application is shown;

[0025] Figure 2 Shows a schematic structural diagram of the steering cylinder and the liquid collecting device;

[0026] Figure 3 Shown Figure 2 Exploded view of the liquid collection device in FIG.

[0027] Figure 4 Shown Figure 3 An enlarged schematic diagram of the liquid collection device in FIG.

[0028] Figure 5 Shows a schematic structural diagram of the lifting cylinder and the cylinder liquid collection assembly;

[0029] Figure 6 An exploded view of the oil cylinder fluid collection assembly is shown;

[0030] Figure 7 An exploded view of the power unit and liquid collection assembly is shown.

[0031] Description of Reference Numerals

[0032] 1 chassis 11 mounting structure

[0033] 12 Door 2 Steering Cylinder

[0034] 21 Connecting ear 31 Steering cylinder fluid receiving pan

[0035] 32 Liquid receiving tray mounting seat 321 Connecting portion

[0036] 33 liquid collecting tray 34 limiting structure

[0037] 341 limiting shaft 342 elastic reset member

[0038] 343 shaft sleeve fixing part 344 shaft sleeve

[0039] 345 locking piece 346 retaining ring

[0040] 35 magnetic parts 41 oil cylinder fluid contact parts

[0041] 42 slide member 43 liquid baffle

[0042] 44 locking structure 441 locking shaft

[0043] 442 elastic member 443 fixing member

[0044] 444 shaft kit 445 end stop

[0045] 446 retaining ring parts 45 magnet parts

[0046] 46 Liquid contact parts limiter 5 Lifting cylinder

[0047] 6 Power unit 71 Power unit liquid tray

[0048] 72 Liquid receiving tray mounting piece 73 Liquid receiving tray limiting piece

[0049] 74 magnets DETAILED DESCRIPTION

[0050] The following describes the specific embodiments of the present application in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application and are not intended to limit the present application.

[0051] In the prior art, aerial work platforms often have leakage problems, which causes the ground of the working environment to be contaminated, which not only affects the cleanliness of the ground environment, but also brings safety problems.

[0052] In view of this, if Figure 1 、 Figure 2 and Figure 3 As shown, the present application provides a novel aerial work platform comprising a chassis 1, a steering cylinder 2, and a liquid collection device. The steering cylinder 2 is rotatably mounted on the chassis 1. The steering cylinder 2 drives the linkage mechanism through telescopic motion, thereby achieving steering of the chassis 1. The liquid collection device is mounted on the cylinder body of the steering cylinder 2, allowing it to swing synchronously with the steering cylinder 2. The liquid collection device includes a detachable steering cylinder liquid collection pan 31, which is provided with a liquid collection chamber for receiving liquid leaking from the steering cylinder 2.

[0053] Because the steering cylinder 2 oscillates, if a fixed liquid collection structure were installed below the steering cylinder 2, its liquid collection area would need to cover the motion path of the steering cylinder 2, making the liquid collection structure very large. Furthermore, due to application needs and manufacturing cost considerations, the overall structure and volume of the chassis 1 are often designed to be compact and minimized. However, the chassis 1 typically requires a large number of functional modules, leaving little available space, making it difficult to install a bulky liquid collection structure.

[0054] To this end, in the aerial work platform of the present application, the liquid collection device is arranged 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 application to the chassis 1 with a narrow installation space.

[0055] It should be noted that the aerial work platform may be, for example, a mast-type aerial work platform, a scissor-type work platform, etc. The respective structures of the steering cylinder 2 and the chassis 1 and the rotational connection structure therebetween may be various, which are well known to those skilled in the art and do not constitute the core improvement of the present application, and thus will not be described in detail here.

[0056] In some embodiments, Figure 3 As shown, the cylinder body of the steering cylinder 2 is provided with a connecting ear 21, and the liquid collecting device is mounted on the cylinder body via the connecting ear 21. The connecting ear 21 can be welded to the cylinder body of the steering cylinder 2, or the connecting ear 21 can be integrally formed with the cylinder body of the steering cylinder 2.

[0057] Alternatively, in some other specific embodiments, the liquid collecting device can be fixedly connected to the cylinder body of the steering cylinder 2 by a hoop sleeved on the cylinder body of the steering cylinder 2 .

[0058] In some specific embodiments, the steering cylinder 2 may be provided with an oil guide structure (not shown) on its cylinder body. This guide structure can direct any leaking liquid from the steering cylinder 2 to the liquid receiving chamber of the liquid collection device. The guide structure can be welded to the steering cylinder 2 or integrally formed therewith. The structure can be various, such as a guide plate or a guide column.

[0059] In some embodiments, Figure 2 、 Figure 3 and Figure 4 As shown, the liquid collecting device may further include a liquid collecting pan mounting seat 32, on which the steering cylinder liquid collecting pan 31 is detachably mounted. When the liquid collecting chamber is full of leaked liquid, the steering cylinder liquid collecting pan 31 may be directly removed for cleaning, which is simple and convenient. The liquid collecting pan mounting seat 32 may be provided with a connecting portion 321, which is connected to the cylinder body of the steering cylinder 2. Figure 2 and Figure 3 As shown, the connecting portion 321 has a mounting hole connected to the cylinder body of the steering cylinder 2, so that it can be connected to the connecting ear portion 21 through a fastener.

[0060] In some embodiments, Figure 2 、 Figure 3 and Figure 4As shown, the liquid collection device also includes a liquid collection pan 33 disposed below the cylinder body of the steering cylinder 2. The liquid collection pan 33 is provided with a liquid outlet, and the steering cylinder liquid receiving pan 31 is located below the liquid outlet. By providing the liquid collection pan 33 and placing it close to the steering cylinder 2, splashing of leaked liquid can be effectively prevented, thereby achieving a better liquid collection effect.

[0061] In some specific embodiments, the liquid collecting pan 33 extends along the axial direction of the steering cylinder 2, the vertical projection shape of the cylinder body of the steering cylinder 2 is matched with the vertical projection shape of the liquid collecting pan 33, and the vertical projection of the cylinder body of the steering cylinder 2 is located within the vertical projection of the liquid collecting pan 33. In this way, the liquid collection effect is better and the structure is more compact.

[0062] Furthermore, in order to make the structure of the liquid collecting 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 collecting pan 33 is less than or equal to 20 mm.

[0063] Furthermore, due to the provision of the liquid collecting pan 33, the structure of the steering cylinder liquid collecting pan 31 can be reduced, thereby making the structure of the liquid collecting device more compact. For example, the vertical projection area of ​​the liquid collecting cavity of the steering cylinder liquid collecting pan 31 is less than or equal to half of the vertical projection area of ​​the liquid collecting pan 33. Figure 2 As shown, the steering cylinder liquid collecting pan 31 can be arranged on one side below the liquid collecting pan 33 along the axial direction of the steering cylinder 2, and the other side below the liquid collecting pan 33 can be used to install other structures of the liquid collecting device, such as a limiting structure.

[0064] Alternatively, as Figure 4 As shown, the connecting portion 321 can extend upward from the edge of the liquid collecting tray 33, so that the structure of the liquid collecting device is more compact and reasonable.

[0065] In some embodiments, such as Figure 2 、 Figure 3 and Figure 4As shown, the liquid collection pan mounting base 32 may be provided with a slot into which the steering cylinder liquid collection pan 31 is removably mounted. The liquid collection device also includes a retaining structure 34, which has a locked state and an unlocked state. In the locked state, the retaining structure 34 locks the steering cylinder liquid collection pan 31 in the slot. In the unlocked state, the steering cylinder liquid collection pan 31 can be removed from the slot. This ensures that the steering cylinder liquid collection pan 31 is stably secured within the liquid collection pan mounting base 32, preventing it from dislodging during operation. Among them, the installation structure and installation position of the limiting structure 34 can be various. For example, the limiting structure 34 can be set on the liquid receiving pan mounting seat 32 or the cylinder body of the steering cylinder 2; the limiting structure 34 can be a snap-fit ​​structure set between the steering cylinder liquid receiving pan 31 and the liquid receiving pan mounting seat 32, or the limiting structure 34 can also be a structure set independently of the steering cylinder liquid receiving pan 31, etc.

[0066] Specifically, if Figure 2 As shown, the steering cylinder 2 is arranged along the left-right direction of the chassis 1 and is located above the running wheels and wheel housings. The liquid collection pan 33 is flat and disc-shaped. The steering cylinder liquid collection pan 31 is thicker than the liquid collection pan 33. This allows the liquid collection pan 33 to extend axially along the steering cylinder 2 and be positioned in the narrow gap between the steering cylinder 2 and the wheel housing. The steering cylinder liquid collection pan 31 is positioned axially along the steering cylinder 2, inboard of the lower side of the liquid collection pan 33. This creates space below and outside the liquid collection pan 33 to allow for the wheel housing and other components to be evacuated, resulting in a compact and rational structure.

[0067] In some embodiments, Figure 2 、 Figure 3 and Figure 4 As shown, the limiting structure 34 may include a limiting assembly, a limiting shaft 341, and an elastic reset member 342. The limiting assembly may be provided on the liquid collecting pan mounting seat 32 or the cylinder body of the steering cylinder 2. The limiting shaft 341 is movably provided in the limiting assembly and can move axially. One end of the limiting shaft 341 is provided with an expanded shaft head. One end of the elastic reset member 342 abuts against the expanded shaft head, and the other end of the elastic reset member 342 abuts against the limiting assembly. When the limiting structure 34 is in the locked state, the expanded shaft head extends to the front of the notch of the insertion slot and limits the steering cylinder liquid collecting pan 31 in the insertion slot. When the limiting structure 34 is in the unlocked state, the expanded shaft head compresses the elastic reset member 342 and avoids the steering cylinder liquid collecting pan 31. In this way, the locking and limiting of the steering cylinder liquid collecting pan 31 can be achieved.

[0068] Further, if Figure 3 and Figure 4As shown, in order to facilitate the manufacture and installation of the liquid collection device, the limiting assembly may include a sleeve fixing part 343 and a sleeve 344. The sleeve fixing part 343 is arranged on the liquid receiving pan mounting seat 32 and has an axial hole. The sleeve 344 is arranged in the axial hole. The end of the limiting shaft 341 away from the expanded diameter shaft head is provided with a locking part 345.

[0069] Furthermore, if Figure 3 and Figure 4 As shown, a retaining ring 346 passing through the limiting shaft 341 is respectively provided between the expanded diameter shaft head and one axial side surface of the sleeve 344, and between the locking member 345 and the other axial side surface of the sleeve 344. The elastic reset member 342 can abut between the retaining ring 346 relatively close to the expanded diameter shaft head and the expanded diameter shaft head. In this way, the structure of the liquid collecting device can be simpler and more reasonable.

[0070] In some specific embodiments, the steering cylinder liquid collecting pan 31 may be a sheet metal part, and a magnetic part 35 for magnetically adsorbing the steering cylinder liquid collecting pan 31 may be provided on the bottom wall of the insertion slot. The magnetic part 35 may be a circular ring part and adjusted to a suitable installation height through fasteners and adjustment gaskets, thereby eliminating vibration and noise of the steering cylinder liquid collecting pan 31 during the operation of the aerial work platform.

[0071] Optionally, a liquid absorbing member, such as oil absorbing cotton, may be provided in the steering cylinder liquid receiving pan 31, so as to prevent the leaked liquid in the liquid receiving chamber from overflowing during the operation of the aerial work platform.

[0072] In some embodiments, Figure 5 and Figure 6 As shown, the aerial work platform also includes a mounting structure 11, a lifting cylinder 5 and a cylinder liquid collection assembly. The mounting structure 11 is arranged in the chassis 1, and a hollow portion is provided at the bottom of the mounting structure 11. The lifting cylinder 5 is installed on the mounting structure 11 and is located above the hollow portion.

[0073] like Figure 5 and Figure 6 As shown, the cylinder liquid collection assembly may include a cylinder liquid receiving member 41 and a liquid baffle 43. The cylinder liquid receiving member 41 is disposed in the hollowed portion and has a liquid receiving cavity for receiving liquid leakage from the cylinder. The liquid baffle 43 is disposed on the mounting structure 11 and is used to direct the liquid leakage from the cylinder into the liquid receiving cavity. Thus, since the cylinder liquid receiving member 41 is disposed under the cylinder, the leaked liquid from the cylinder can be collected, thereby reducing the risk of liquid leakage during operation of the aerial work platform.

[0074] Because chassis 1 typically requires a large number of functional modules, its structure is relatively compact, and the remaining available space within chassis 1 is often small, making it difficult to install a bulky liquid collection structure. The hydraulic cylinder receiving member 41 of the aerial work platform of the present application is disposed within a hollowed-out portion at the bottom of the mounting structure 11. This eliminates the need to modify the thickness of chassis 1 to accommodate the hydraulic cylinder liquid collection assembly, making the overall structure of the aerial work platform more compact and suitable for installation within a narrow chassis 1, thereby reducing manufacturing costs.

[0075] In addition, since the mounting structure 11 of the oil cylinder is provided with a liquid baffle 43, the leaked liquid can be collected and directed to the oil cylinder liquid receiving part 41, thereby preventing the leaked liquid from seeping into other parts of the equipment and causing ground pollution.

[0076] The cylinder liquid receiving member 41 and the liquid baffle 43 can have various structural shapes and can be designed according to the installation structure of the cylinder. The cylinder can be a lifting cylinder or a cylinder with other functions. The following describes the cylinder liquid collection assembly of the present application using the lifting cylinder 5 as an example.

[0077] In some embodiments, the cylinder liquid collection assembly may include two spaced-apart liquid baffles 43. The inner surfaces of the two liquid baffles 43 and the outer peripheral wall of the mounting structure 11 define a liquid channel, with the lift cylinder 5 positioned within the channel. This allows leakage from the lift cylinder 5 to be directed through the channel into the liquid receiving cavity of the cylinder liquid receiving member 41.

[0078] In some specific embodiments, in order to make the structure of the oil cylinder liquid collection assembly more reasonable and compact, and suitable for the chassis 1 with a narrow space, the lower plate ends of the two liquid baffles 43 are bent in a direction close to each other, so that the lower end outlet of the liquid guide channel is gradually narrowed. Figure 5 and Figure 6 As shown, since the lifting cylinder 5 is disposed between the upper ends of the two liquid baffles 43, the distance between the upper ends of the two liquid baffles 43 is relatively large. By bending the lower ends of the two liquid baffles 43 toward each other, the distance between the lower ends of the two liquid baffles 43 can be made smaller than the distance between the upper ends of the two liquid baffles 43. In this way, the cylinder liquid receiving member 41 can be further miniaturized.

[0079] Optionally, the hollowed-out portion may pass through the mounting structure 11 along the front-to-back direction of the chassis 1, and the front and rear ends of the liquid receiving cavity may extend out of the mounting structure 11 respectively. In this way, regardless of whether the aerial work platform is going uphill or downhill, the lower end outlets of the front liquid guide channel and the rear liquid guide channel may be located above the liquid receiving cavity, thereby enabling the leaked liquid to be diverted into the liquid receiving cavity through the front liquid guide channel and the rear liquid guide channel.

[0080] Alternatively, as Figure 5 and Figure 6 As shown, the mounting structure 11 extends in the left-right direction of the chassis 1, and the surfaces of the two liquid baffles 43 extend in the front-to-back direction of the chassis 1. The two liquid baffles 43 are spaced apart in the left-right direction of the chassis 1 and have lower engaging openings. The mounting structure 11 is engaged in the lower engaging openings to form a front liquid guide channel and a rear liquid guide channel with the two liquid baffles 43. The lower end outlets of the front liquid guide channel and the rear liquid guide channel are both located above the liquid receiving cavity.

[0081] Specifically, if Figure 5 and Figure 6 As shown, a rear liquid guide channel is formed between the rear inner surfaces of the two liquid baffles 43 and the top and rear side surfaces of the mounting structure 11, while a front liquid guide channel is formed between the front inner surfaces of the two liquid baffles 43 and the top and front side surfaces of the mounting structure 11. Specifically, the liquid guide channel includes a front liquid guide channel and a rear liquid guide channel that are connected. The lifting cylinder 5 is disposed in the liquid guide channel, and leaked liquid can be diverted from the front liquid guide channel or the rear liquid guide channel to the liquid receiving chamber of the cylinder liquid receiving member 41.

[0082] In some embodiments, Figure 5 and Figure 6 As shown, the oil cylinder liquid collection assembly may further include a chute member 42, which is disposed in the hollowed portion and has a liquid receiving pan chute. The oil cylinder liquid receiving member 41 is slidably disposed in the liquid receiving pan chute and can be removed from the liquid receiving pan chute. Since the oil cylinder liquid receiving member 41 can be removed from the chute member 42, it is convenient to clean up leaked liquid.

[0083] In some specific embodiments, in order to facilitate the manufacture of the slide member 42, as shown in FIG. Figure 5 and Figure 6 As shown, the liquid receiving pan chute can extend along the sliding direction of the cylinder liquid receiving member 41. In this case, the cylinder liquid collection assembly can also include a liquid receiving member stopper 46 for limiting the position of the cylinder liquid receiving member 41. The liquid receiving member stopper 46 is disposed on the inner side of the liquid receiving pan chute along the sliding direction. In this way, when the cylinder liquid receiving member 41 is inserted into the liquid receiving pan chute, the liquid receiving member stopper 46 can limit the insertion depth of the cylinder liquid receiving member 41, thereby limiting the position of the cylinder liquid receiving member 41.

[0084] Optionally, the chassis 1 may be provided with a strip hole along the sliding direction of the cylinder liquid contact part 41, and the liquid contact part limiter 46 may be adjustably arranged in the strip hole through a fastener, so that the position of the liquid contact part limiter 46 can be conveniently adjusted, and the structure is more reasonable.

[0085] In some specific embodiments, the oil 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 oil cylinder liquid receiving part 41 in the liquid receiving pan chute, and in the unlocked state, the oil cylinder liquid receiving part 41 can be withdrawn from the liquid receiving pan chute. In this way, the oil cylinder liquid receiving part 41 can be stably restrained in the chute member 42, preventing the oil cylinder liquid receiving part 41 from falling out during operation. The mounting structure and mounting position of the locking structure 44 can be varied. For example, the locking structure 44 can be set on the chute member 42 or the cylinder body of the mounting structure 11; the locking structure 44 can be a snap-fit ​​structure set between the oil cylinder liquid receiving part 41 and the chute member 42; or the locking structure 44 can be a structure set independently of the oil cylinder liquid receiving part 41, etc.

[0086] In some embodiments, such as Figure 5 and Figure 6 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 arranged in the locking assembly and can move axially. One end of the locking shaft 441 is provided with an expanded shaft head. One end of the elastic member 442 abuts against the expanded shaft head, and the other end of the elastic member 442 abuts against the locking assembly. In the locked state of the locking structure 44, the expanded shaft head extends to the front of the notch of the liquid receiving pan chute and limits the oil cylinder liquid receiving part 41 in the liquid receiving pan chute. In the unlocked state of the locking structure 44, the expanded shaft head compresses the elastic member 442 and avoids the oil cylinder liquid receiving part 41. In this way, the locking and limiting of the oil cylinder liquid receiving part 41 can be achieved.

[0087] Furthermore, if Figure 5 and Figure 6 As shown, in order to facilitate the manufacture and installation of the liquid collection device, the locking assembly includes a fixing member 443 and an axis sleeve 444. The fixing member 443 can be set on the chassis 1 or the mounting structure 11 and is provided with an axis hole. The axis sleeve 444 is set in the axis hole. The end of the locking shaft 441 away from the expanded diameter shaft head is provided with an end limit member 445.

[0088] Furthermore, if Figure 5 and Figure 6 As shown, a retaining ring member 446 is provided on the locking shaft 441, between the expanded diameter shaft head and one axial side surface of the shaft sleeve 444, and between the end stop member 445 and the other axial side surface of the shaft sleeve 444. The elastic member 442 can abut between the retaining ring member 446 relatively close to the expanded diameter shaft head and the expanded diameter shaft head, thereby making the structure of the oil cylinder liquid collection assembly simpler and more reasonable.

[0089] Optionally, in order to facilitate manufacturing and reduce manufacturing costs, the oil cylinder liquid receiving part 41, the chute part 42 and the liquid baffle 43 can be sheet metal parts. The notch of the chute part 42 is provided with an outwardly bent guide flange to facilitate the insertion of the oil cylinder liquid receiving part 41.

[0090] Optionally, the cylinder fluid receiving member 41 can be a sheet metal component, and the cylinder liquid collection assembly can further include multiple magnets 45. These magnets 45 are positioned on either side of the fluid receiving tray chute along the sliding direction of the cylinder fluid receiving member 41. Alternatively, the magnets 45 can be embedded in the bottom wall of the fluid receiving tray chute. In this way, the magnets 45 can attract the cylinder fluid receiving member 41, thereby eliminating vibration and noise from the cylinder fluid receiving member 41 during operation of the aerial work platform.

[0091] Alternatively, as Figure 7 As shown, the aerial work platform may include a power unit 6 and a liquid collection assembly. The chassis 1 is provided with a maintenance opening and a door 12 capable of sealing the maintenance opening. The power unit 6 and the liquid collection assembly are separately disposed within the chassis 1, with the liquid collection assembly positioned below the power unit 6. The liquid collection assembly comprises a power unit liquid collection pan 71 and a liquid collection pan mounting member 72. The liquid collection pan mounting member 72 has a liquid collection pan chute. The power unit liquid collection pan 71 slides within the chute and is provided with a liquid collection chamber for receiving liquid leaks from the power unit 6. This allows for the collection of leaked liquid from the power unit, thereby reducing the risk of liquid leakage during operation of the aerial work platform.

[0092] Since the power unit 6 is usually installed relatively close to the middle of the chassis 1, the power unit liquid receiving pan 71 can usually only be removed in the left-right direction of the chassis 1. Since the chassis 1 usually needs to accommodate many functional modules, the chassis 1 has a relatively compact structure and a small left-right dimension. The remaining available space in the chassis 1 is often small, making it difficult to install a limiting structure to limit the power unit liquid receiving pan 71.

[0093] Furthermore, typically, the chassis 1 is provided with a maintenance opening and a door 12 on the left and right sides thereof for sealing the maintenance opening. To this end, the door 12 of the aerial work platform of the present application is configured to lock the power unit liquid collection pan 71 in the liquid collection pan chute when closed, and to allow the power unit liquid collection pan 71 to be withdrawn from the liquid collection pan chute when the door 12 is open. This eliminates the need for additional retaining structures within the chassis 1, making the overall structure of the aerial work platform reasonably compact and suitable for installation in chassis with limited space.

[0094] It should be noted that the respective structures of the power unit 6 and the chassis 1 and the rotational connection structure between the two can be varied, which is well known to those skilled in the art and does not belong to the core improvement part of this application, so it will not be repeated here.

[0095] In some embodiments, in order to facilitate the manufacture of the liquid receiving tray mounting member 72, as shown in FIG. Figure 7 As shown, the liquid collection pan chute can extend along the sliding direction of the power unit liquid collection pan 71. In this case, the liquid collection assembly also includes a liquid collection pan stopper 73 for limiting the position of the power unit liquid collection pan 71. The liquid collection pan stopper 73 is positioned inside the liquid collection pan chute along the sliding direction. Thus, when the power unit liquid collection pan 71 is inserted into the liquid collection pan chute, the liquid collection pan stopper 73 can limit the insertion depth of the power unit liquid collection pan 71, thereby effectively limiting the position of the power unit liquid collection pan 71.

[0096] Optionally, the chassis 1 may be provided with a strip hole along the sliding direction of the power unit liquid receiving pan 71, and the liquid receiving pan limiter 73 may be adjustably arranged in the strip hole through a fastener, so that the position of the liquid receiving pan limiter 73 can be conveniently adjusted, and the structure is more reasonable.

[0097] Optionally, in order to facilitate manufacturing and reduce manufacturing costs, the power unit liquid receiving pan 71 and the liquid receiving pan mounting member 72 can be sheet metal parts. The notch of the liquid receiving pan mounting member 72 is provided with an outwardly bent guide flange to facilitate the insertion and installation of the power unit liquid receiving pan 71.

[0098] Optionally, the power unit liquid collection pan 71 can be a sheet metal part, and the oil cylinder liquid collection assembly can further include a plurality of magnets 74. The magnets 74 are arranged on both sides of the liquid collection pan chute along the sliding direction of the power unit liquid collection pan 71. Alternatively, the magnets 74 can be embedded in the bottom wall of the liquid collection pan chute. In this way, the magnets 74 can attract the power unit liquid collection pan 71, thereby eliminating vibration and noise of the power unit liquid collection pan 71 during operation of the aerial work platform.

[0099] Optionally, in order to facilitate the door opening operation, the door body 12 may be pivotally connected to the chassis 1. Alternatively, in other specific embodiments, the door body 12 and the chassis 1 may be detachably connected via fasteners.

[0100] It should be noted that the structural principles of functional components such as the chassis 1, steering cylinder 2, lifting cylinder and power unit are well known to technical personnel in this field, and do not belong to the core improvement part of this application, so they will not be repeated here.

[0101] In summary, the aerial work platform of the present application is equipped with devices for collecting leaked liquids from the steering cylinder, lifting cylinder, and power unit, which can greatly improve the liquid leakage collection effect of the entire aerial work platform and is relatively suitable for work environments with relatively high requirements. In addition, the liquid-contacting parts of the device are all detachable, which is convenient for cleaning and returning the collected leaked liquid, and is simple to operate and easy to maintain. Magnetic parts are used at the bottom of the device to adsorb the liquid-contacting parts to prevent vibration and noise during operation. At the same time, there are limit stops on all sides to eliminate the risk of the liquid-contacting parts falling during operation.

[0102] 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 understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0103] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0104] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present application. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0105] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An aerial work platform, characterized in that: include: Chassis (1); A steering cylinder (2) rotatably arranged on the chassis (1); A liquid collecting device is arranged on the cylinder body of the steering cylinder (2) and swings synchronously with the steering cylinder (2), the liquid collecting device comprising a detachable steering cylinder liquid collecting pan (31), the steering cylinder liquid collecting pan (31) being provided with a liquid collecting chamber for receiving liquid leaking from the steering cylinder (2).

2. The aerial work platform according to claim 1, characterized in that: The cylinder body of the steering oil cylinder (2) is provided with a connecting ear (21) integrally formed with the cylinder body, and the liquid collecting device is installed on the cylinder body via the connecting ear (21).

3. The aerial work platform according to claim 1, characterized in that: An oil guide structure is provided on the cylinder body of the steering oil cylinder (2).

4. The aerial work platform according to claim 1, characterized in that: The liquid collecting device further comprises a liquid receiving pan mounting seat (32), the steering oil cylinder liquid receiving pan (31) is detachably arranged on the liquid receiving pan mounting seat (32), the liquid receiving pan mounting seat (32) is provided with a connecting portion (321), and the connecting portion (321) is connected to the cylinder body of the steering oil cylinder (2).

5. The aerial work platform according to claim 4, characterized in that: The liquid collecting device further comprises a liquid collecting pan (33) arranged below the cylinder body of the steering oil cylinder (2), the liquid collecting pan (33) being provided with a liquid outlet, and the steering oil cylinder liquid receiving pan (31) is located below the liquid outlet.

6. The aerial work platform according to claim 5, characterized in that: The connecting portion (321) extends upward from the edge of the liquid collecting tray (33) and has a mounting hole connected to the cylinder body of the steering cylinder (2).

7. The aerial work platform according to claim 5, characterized in that: The liquid collecting pan (33) extends along the axial direction of the steering cylinder (2), and the vertical projection of the cylinder body of the steering cylinder (2) is located within the vertical projection of the liquid collecting pan (33).

8. The aerial work platform according to claim 4, characterized in that: The liquid collecting pan mounting seat (32) is provided with an insertion slot, and the steering cylinder liquid collecting pan (31) is detachably inserted into the insertion slot. The liquid collecting device further comprises a limiting structure (34), and the limiting structure (34) has a locked state and an unlocked state. The limiting structure (34) can lock the steering cylinder liquid collecting pan (31) in the insertion slot in the locked state, and the steering cylinder liquid collecting pan (31) can be drawn out of the insertion slot in the unlocked state of the limiting structure (34).

9. The aerial work platform according to claim 8, characterized in that: The limiting structure (34) comprises: Limiting components; A limiting shaft (341) is movably arranged in the limiting assembly and is capable of moving in the axial direction, and one end of the limiting shaft (341) is provided with an enlarged diameter shaft head; An elastic reset member (342), 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 limit assembly; Wherein, when the limiting structure (34) is in a locked state, the expanded diameter shaft head extends to the front of the slot opening of the insertion slot and limits the steering cylinder fluid receiving pan (31) in the insertion slot; when the limiting structure (34) is in an unlocked state, the expanded diameter shaft head compresses the elastic reset member (342) and avoids the steering cylinder fluid receiving pan (31).

10. The aerial work platform according to claim 8, characterized in that: A magnetic component (35) for magnetically adsorbing the steering cylinder fluid receiving tray is provided on the bottom wall of the insertion slot.

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