Aerial work platform

Abstract

The invention relates to the field of aerial work platforms, and discloses an aerial work platform which comprises a chassis provided with a steering oil cylinder, a lifting oil cylinder and a power unit. The liquid collecting device is arranged on the steering oil cylinder and is used for receiving leaked liquid of the steering oil cylinder; the oil cylinder liquid collecting assembly is arranged on the chassis and is used for receiving leaked liquid of the lifting oil cylinder; and the liquid collecting assembly is arranged on the chassis and is used for receiving leaked liquid of the power unit. According to the aerial work platform, leaked liquid of the steering oil cylinder, the lifting oil cylinder and the power unit 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 working machinery, and specifically relates to an aerial working platform. Background Art

[0002] At present, aerial work platforms have been used in factories, warehouses, supermarkets, offices and other application places. These application places have high requirements on the cleanliness of the ground environment. During the operation of the aerial work platform, no hydraulic oil can leak onto the ground of the workplace. However, the existing aerial work platforms still have leakage problems during operation, and the user experience is poor. Summary of the invention

[0003] The purpose of the present 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-mentioned purpose, the present application provides an aerial work platform, which comprises:

[0005] The chassis is provided with a steering cylinder, a lifting cylinder and a power unit;

[0006] A liquid collecting device, disposed on the steering cylinder and used to receive liquid leakage from the steering cylinder;

[0007] A cylinder liquid collection assembly, disposed on the chassis and used to receive the leaked liquid from the lifting cylinder;

[0008] The liquid collecting assembly is arranged on the chassis and is used for receiving the leaked liquid of the power unit.

[0009] In some specific embodiments, the chassis is provided with a maintenance opening and a door body capable of covering the maintenance opening, the power unit is arranged in the chassis, the liquid collection assembly is located below the power unit and comprises a power unit liquid receiving pan and a liquid receiving pan mounting member, the liquid receiving pan mounting member has a liquid receiving pan slide groove, the power unit liquid receiving pan is slidably arranged in the liquid receiving pan slide groove and is provided with a liquid receiving cavity for receiving liquid leakage of the power unit;

[0010] Wherein, the door body can lock the power unit liquid receiving pan in the liquid receiving pan slide groove when the door body is in a closed state, and the power unit liquid receiving pan can be drawn out from the liquid receiving pan slide groove when the door body is in an open state.

[0011] In some specific embodiments, the liquid receiving pan groove passes through along the sliding direction of the power unit liquid receiving pan, and the liquid collection assembly also includes a liquid receiving pan limiter for limiting the power unit liquid receiving pan, and the liquid receiving pan limiter is arranged on the inner side of the liquid receiving pan groove along the sliding direction.

[0012] In some specific embodiments, the bottom plate is provided with a strip-shaped hole along the sliding direction, and the liquid receiving tray stopper is adjustably disposed in the strip-shaped hole through a fastener.

[0013] In some specific embodiments, the steering cylinder is rotatably disposed on the chassis, the liquid collecting device swings synchronously with the steering cylinder, and 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 chamber for receiving liquid leakage from the steering cylinder.

[0014] In some specific embodiments, the liquid collecting device further comprises 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 used to connect to the cylinder body of the steering cylinder.

[0015] In some specific embodiments, the liquid collecting pan mounting seat also includes a liquid collecting pan arranged below the cylinder body of the steering cylinder, the liquid collecting pan is provided with an oil outlet, the steering cylinder liquid collecting pan is located below the oil outlet, the liquid collecting pan 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 pan, and the vertical projection area of ​​the liquid collecting chamber is less than or equal to half of the vertical projection area of ​​the liquid collecting pan.

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

[0017] A mounting structure is arranged on the chassis, a hollow portion is provided at the bottom of the mounting structure, the lifting cylinder is mounted on the mounting structure and is located above the hollow portion, the cylinder liquid collecting assembly includes a cylinder liquid receiving part and a liquid baffle plate, the cylinder liquid receiving part is arranged in the hollow portion and is provided with a liquid receiving cavity for receiving liquid leakage from the lifting cylinder, and the liquid baffle plate is arranged on the mounting structure and is used to guide the liquid leakage from the lifting cylinder into the liquid receiving cavity.

[0018] In some specific embodiments, the cylinder liquid collection assembly includes two liquid baffles spaced apart from each other, a liquid guide channel is defined between the inner plate surfaces of the two liquid baffles and the outer wall surface of the mounting structure, and the lifting cylinder is located in the liquid guide channel.

[0019] In some specific embodiments, the lower plate ends of the two liquid baffles are bent in a direction approaching each other, so that the lower end outlet of the liquid guiding channel is gradually narrowed.

[0020] Since the steering cylinder, lifting cylinder and power unit are structures that are prone to leakage on the aerial work platform, by arranging liquid receiving 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, the risk of leakage during the operation of the aerial work platform can be reduced, and the user experience can be better.

[0021] 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

[0022] 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 ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0023] Figure 1 A schematic diagram showing the structure of an aerial work platform in accordance with a specific embodiment of the present application is shown;

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

[0025] Figure 3 A schematic diagram of the structure of the lifting cylinder and the cylinder liquid collection assembly is shown;

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

[0027] Figure 5 The schematic diagram of the structure of the steering cylinder and the liquid collecting device is shown;

[0028] Figure 6 Shows Figure 5 An exploded view of the liquid collection device in FIG.

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

[0030] Description of Reference Numerals

[0031] 1 chassis 11 installation structure

[0032] 12 door body 2 steering cylinder

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

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

[0035] 33 liquid collecting tray 34 limiting structure

[0036] 341 limiting shaft 342 elastic reset member

[0037] 343 sleeve fixing part 344 sleeve

[0038] 345 locking piece 346 retaining ring

[0039] 35 magnetic parts 41 oil cylinder fluid contact parts

[0040] 42 slide member 43 liquid baffle plate

[0041] 44 locking structure 441 locking shaft

[0042] 442 elastic member 443 fixing member

[0043] 444 shaft kit 445 end stop

[0044] 446 retaining ring 45 magnet

[0045] 46 Liquid contact parts Limiting parts 5 Lifting cylinder

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

[0047] 72 Liquid receiving tray mounting piece 73 Liquid receiving tray limiting piece

[0048] 74 Magnets DETAILED DESCRIPTION

[0049] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0050] 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.

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

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

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

[0054] Alternatively, if Figure 2 As shown, the chassis 1 is provided with a maintenance opening and a door body 12 capable of covering the maintenance opening, the power unit 6 and the liquid collection assembly are respectively arranged in the chassis 1, and the liquid collection assembly is located below the power unit 6. The liquid collection assembly includes a power unit liquid receiving pan 71 and a liquid receiving pan mounting member 72, the liquid receiving pan mounting member 72 has a liquid receiving pan slide, the power unit liquid receiving pan 71 is slidably arranged in the liquid receiving pan slide and is provided with a liquid receiving cavity for receiving the leaked liquid of the power unit 6. In this way, the leaked liquid of the power unit can be collected, thereby reducing the risk of liquid leakage during the operation of the aerial work platform.

[0055] Since the power unit 6 is usually arranged at a relatively central position of the chassis 1, the power unit liquid receiving pan 71 can usually only be taken out along the left and right direction of the chassis 1. Since a large number of functional modules are usually arranged in the chassis 1, the structure of the chassis 1 is relatively compact, and the size of the chassis 1 along the left and right direction is small, the remaining available space in the chassis 1 is often small, and it is difficult to install a limiting structure for limiting the power unit liquid receiving pan 71.

[0056] Furthermore, usually, the side of the chassis 1 along the left and right directions is usually provided with a maintenance opening and a door body 12 capable of covering the maintenance opening. To this end, the door body 12 of the aerial work platform of the present application is configured to lock the power unit liquid receiving pan 71 in the liquid receiving pan chute when in a closed state, and the power unit liquid receiving pan 71 can be pulled out of the liquid receiving pan chute when the door body 12 is in an open state. In this way, there is no need to set an additional limiting structure in the chassis 1, so that the overall structure of the aerial work platform is reasonable and compact, and is suitable for chassis with narrow installation space.

[0057] 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 power unit 6 and the chassis 1 and the rotation connection structure therebetween may be various, which are well known to those skilled in the art and do not belong to the core improvement part of the present application, and thus will not be described in detail here.

[0058] In some specific embodiments, in order to facilitate the manufacture of the liquid receiving tray mounting member 72, as Figure 2 As shown, the liquid receiving pan chute can be connected along the sliding direction of the power unit liquid receiving pan 71. At this time, the liquid collection assembly also includes a liquid receiving pan stopper 73 for limiting the power unit liquid receiving pan 71, and the liquid receiving pan stopper 73 is arranged on the inner side of the liquid receiving pan chute along the sliding direction. In this way, when the power unit liquid receiving pan 71 is inserted into the liquid receiving pan chute, the liquid receiving pan stopper 73 can limit the insertion depth of the power unit liquid receiving pan 71, thereby achieving the limitation of the power unit liquid receiving pan 71.

[0059] Optionally, the chassis 1 may be provided with strip holes 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 holes through fasteners, so that the position of the liquid receiving pan limiter 73 may be conveniently adjusted, and the structure is more reasonable.

[0060] 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, so as to facilitate the insertion of the power unit liquid receiving pan 71.

[0061] Optionally, the power unit liquid receiving pan 71 may be a sheet metal part, and the oil cylinder liquid collecting assembly may further include a plurality of magnets 74, which are disposed on both sides of the liquid receiving pan chute along the sliding direction of the power unit liquid receiving pan 71, or the plurality of magnets 74 may be embedded on the bottom wall of the liquid receiving pan chute. In this way, the magnets 74 may absorb the power unit liquid receiving pan 71, thereby eliminating the vibration and noise of the power unit liquid receiving pan 71 during the operation of the aerial work platform.

[0062] 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.

[0063] In some specific embodiments, Figure 3 and Figure 4 As shown, the aerial work platform further includes a mounting structure 11, which is disposed in the chassis 1, a hollow portion is disposed at the bottom of the mounting structure 11, and a lifting cylinder 5 is mounted on the mounting structure 11 and is located above the hollow portion.

[0064] like Figure 3 and Figure 4As shown, the oil cylinder liquid collection assembly may include an oil cylinder liquid receiving member 41 and a liquid baffle plate 43. The oil cylinder liquid receiving member 41 is arranged in the hollowed-out portion and is provided with a liquid receiving cavity for receiving the liquid leakage of the oil cylinder. The liquid baffle plate 43 is arranged on the mounting structure 11 and is used to guide the liquid leakage of the oil cylinder into the liquid receiving cavity. In this way, since the oil cylinder liquid receiving member 41 is arranged under the oil cylinder, the liquid leakage of the oil cylinder can be collected, thereby reducing the risk of liquid leakage during the operation of the aerial work platform.

[0065] Since a large number of functional modules are usually required to be arranged in the chassis 1, the structure of the chassis 1 is relatively compact, and the remaining available space in the chassis 1 is often small, making it difficult to install a large liquid collection structure. The oil cylinder receiving member 41 of the aerial work platform of the present application is arranged in the hollowed-out portion at the bottom of the mounting structure 11, and there is no need to change the thickness of the chassis 1 to install the oil cylinder liquid collection assembly, which can make the overall structure of the aerial work platform more reasonable and compact, suitable for installing a chassis 1 with a small installation space, and is conducive to reducing manufacturing costs.

[0066] In addition, since the liquid baffle 43 is provided on the installation structure 11 of the oil cylinder, the leaked liquid can be collected and directed to the oil cylinder liquid receiving part 41, which can prevent the leaked liquid from seeping into other parts of the equipment and causing ground pollution.

[0067] The structure and shape of the oil cylinder liquid receiving part 41 and the liquid baffle plate 43 can be various, and the structure of the oil cylinder liquid receiving part 41 and the liquid baffle plate 43 can be designed according to the installation structure of the oil cylinder. The oil cylinder can be a lifting oil cylinder or an oil cylinder with other functions, etc. The oil cylinder liquid collection assembly of the present application is described below by taking the lifting oil cylinder 5 as an example.

[0068] In some specific embodiments, the oil cylinder liquid collection assembly may include two liquid baffles 43 spaced apart, the inner plate surfaces of the two liquid baffles 43 and the outer peripheral wall of the mounting structure 11 define a liquid guide channel, and the lifting oil cylinder 5 is located in the liquid guide channel. In this way, the leakage of the lifting oil cylinder 5 can be introduced into the liquid receiving cavity of the oil cylinder liquid receiving member 41 through the liquid guide channel.

[0069] 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 towards each other so that the lower end outlet of the liquid guide channel is gradually narrowed. Figure 3 and Figure 4 As shown, since the lifting oil cylinder 5 is arranged between the upper plate ends of the two liquid baffles 43, the distance between the upper plate ends of the two liquid baffles 43 is relatively large. By bending the lower plate ends of the two liquid baffles 43 toward each other, the distance between the lower plate ends of the two liquid baffles 43 can be made smaller than the distance between the upper plate ends of the two liquid baffles 43, so that the oil cylinder liquid receiving member 41 can be made more miniaturized.

[0070] Optionally, the hollowed-out portion may penetrate 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, no matter whether the aerial work platform is going uphill or downhill, the lower end outlets of the front liquid guiding channel and the rear liquid guiding channel may be located above the liquid receiving cavity, thereby enabling the leaked liquid to be directed into the liquid receiving cavity through the front liquid guiding channel and the rear liquid guiding channel.

[0071] Alternatively, if Figure 3 and Figure 4 As shown, the mounting structure 11 extends along the left-right direction of the chassis 1, and the plate surfaces of the two liquid baffles 43 extend along the front-back direction of the chassis 1. The two liquid baffles 43 are arranged at intervals along the left-right direction of the chassis 1 and are provided with lower clamping openings, and the mounting structure 11 is clamped in the lower clamping opening to form a front liquid guide channel and a rear liquid guide channel with the two liquid baffles 43, and the lower end outlets of the front liquid guide channel and the rear liquid guide channel are both located above the liquid receiving cavity.

[0072] Specifically, Figure 3 and Figure 4 As shown, a rear side liquid guide channel is formed between the rear inner side plate surfaces of the two liquid baffles 43 and the top surface and rear side surface of the mounting structure 11, and a front side liquid guide channel is formed between the front inner side plate surfaces of the two liquid baffles 43 and the top surface and front side surface of the mounting structure 11. That is, the liquid guide channel includes a connected front side liquid guide channel and a rear side liquid guide channel, and the lifting oil cylinder 5 is arranged in the liquid guide channel, and the leaked liquid can be guided from the front side liquid guide channel or the rear side liquid guide channel to the liquid receiving cavity of the oil cylinder liquid receiving member 41.

[0073] In some specific embodiments, Figure 3 and Figure 4 As shown, the oil cylinder liquid collection assembly may further include a slide chute 42, which is arranged in the hollowed-out portion and has a liquid receiving pan slide chute, and the oil cylinder liquid receiving member 41 is slidably arranged in the liquid receiving pan slide chute and can be taken out from the liquid receiving pan slide chute. Since the oil cylinder liquid receiving member 41 can be taken out from the slide chute 42, it is convenient to clean up the leaked liquid.

[0074] In some specific embodiments, in order to facilitate the manufacture of the slide member 42, such as Figure 3 and Figure 4 As shown, the liquid receiving tray chute can be passed through along the sliding direction of the oil cylinder liquid receiving part 41. At this time, the oil cylinder liquid collecting assembly can also include a liquid receiving part stopper 46 for limiting the position of the oil cylinder liquid receiving part 41. The liquid receiving part stopper 46 is arranged on the inner side of the liquid receiving tray chute along the sliding direction. In this way, when the oil cylinder liquid receiving part 41 is inserted into the liquid receiving tray chute, the liquid receiving part stopper 46 can limit the insertion depth of the oil cylinder liquid receiving part 41, thereby realizing the position limitation of the oil cylinder liquid receiving part 41.

[0075] Optionally, the chassis 1 may be provided with strip holes along the sliding direction of the cylinder liquid receiving part 41, and the liquid receiving part limiter 46 may be adjustably arranged in the strip holes through fasteners, so that the position of the liquid receiving part limiter 46 may be conveniently adjusted, and the structure is more reasonable.

[0076] In some specific embodiments, the oil cylinder liquid collection assembly may further include a locking structure 44, which has a locking state and an unlocking state. The locking structure 44 can lock the oil cylinder liquid receiving part 41 in the liquid receiving pan chute in the locking state, and the oil cylinder liquid receiving part 41 can be pulled out from the liquid receiving pan chute in the unlocking state of the locking structure 44. In this way, the oil cylinder liquid receiving part 41 can be stably limited in the chute part 42 to prevent the oil cylinder liquid receiving part 41 from falling out during operation. Among them, the installation structure and installation position of the locking structure 44 can be various, for example, the locking structure 44 can be set on the chute part 42 or the cylinder body of the installation structure part 11; the locking structure 44 can be a buckle structure set between the oil cylinder liquid receiving part 41 and the chute part 42, or the locking structure 44 can also be a structure set independently of the oil cylinder liquid receiving part 41, etc.

[0077] In some specific embodiments, 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 arranged in the locking assembly and can move axially. An expanded shaft head is provided at one end of the locking shaft 441. 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 which, when the locking structure 44 is in the locked state, 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.

[0078] Furthermore, if 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 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.

[0079] Furthermore, if Figure 3 and Figure 4As shown, a retaining ring 446 is respectively provided between the enlarged diameter shaft head and one axial side of the shaft sleeve 444, and between the end stopper 445 and the other axial side of the shaft sleeve 444. The elastic member 442 can be abutted between the retaining ring 446 relatively close to the enlarged diameter shaft head and the enlarged diameter shaft head, so that the structure of the oil cylinder liquid collection assembly can be simpler and more reasonable.

[0080] Optionally, in order to facilitate manufacturing and reduce manufacturing costs, the oil cylinder liquid receiving part 41, the slide chute part 42 and the liquid baffle plate 43 can be sheet metal parts. The notch of the slide chute part 42 is provided with an outwardly bent guide flange to facilitate the insertion of the oil cylinder liquid receiving part 41.

[0081] Optionally, the oil cylinder liquid receiving part 41 may be a sheet metal part, and the oil cylinder liquid collecting assembly may further include a plurality of magnets 45, which are disposed on both sides of the liquid receiving tray chute along the sliding direction of the oil cylinder liquid receiving part 41, or the plurality of magnets 45 may be embedded on the bottom wall of the liquid receiving tray chute. In this way, the magnet 45 may absorb the oil cylinder liquid receiving part 41, thereby eliminating the vibration and noise of the oil cylinder liquid receiving part 41 during the operation of the aerial work platform.

[0082] In some specific embodiments, Figure 5 , Figure 6 and Figure 7 As shown, the aerial work platform may further include a steering cylinder 2 and a liquid collecting device. The steering cylinder 2 is rotatably arranged on the chassis 1, the liquid collecting device is arranged on the cylinder body of the steering cylinder 2 and swings synchronously with the steering cylinder 2, and the liquid collecting device includes a detachable steering cylinder liquid receiving pan 31, and the steering cylinder liquid receiving pan 31 is provided with a liquid receiving chamber for receiving the leakage of the steering cylinder 2.

[0083] The steering cylinder 2 is rotatably arranged on the chassis 1, and the steering cylinder 2 drives the connecting rod mechanism to move through telescopic movement, thereby realizing the steering of the chassis 1. The liquid collecting device is arranged on the cylinder body of the steering cylinder 2, so that it can swing synchronously with the steering cylinder 2.

[0084] Since the steering cylinder 2 swings, if a fixed liquid collection structure is provided below the steering cylinder 2, the liquid collection arrangement area of ​​the liquid collection structure needs to cover the movement path area of ​​the steering cylinder 2, which will make the volume of the liquid collection structure very large. In addition, based on application needs and manufacturing cost considerations, the overall structure and volume design of the chassis 1 are often relatively compact and as small as possible, but the chassis 1 usually needs to be arranged with more functional modules, and the remaining available space in the chassis 1 is often small, making it difficult to install a large liquid collection structure.

[0085] In the aerial work platform of the present application, the liquid collecting 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, which is suitable for application to the chassis 1 with a narrow installation space.

[0086] In some specific embodiments, Figure 6 As shown, a connecting ear 21 is provided on the cylinder body of the steering cylinder 2, and the liquid collecting device is installed on the cylinder body through 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.

[0087] 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 .

[0088] In some specific embodiments, Figure 5 , Figure 6 and Figure 7 As shown, the liquid collecting device may further include a liquid receiving pan mounting seat 32, and the steering cylinder liquid receiving pan 31 may be detachably mounted on the liquid receiving pan mounting seat 32. When the liquid receiving chamber is full of leaked liquid, the steering cylinder liquid receiving pan 31 may be directly taken out for cleaning, and the cleaning operation is simple and convenient. The liquid receiving pan mounting seat 32 may be provided with a connecting portion 321, and the connecting portion 321 is connected to the cylinder body of the steering cylinder 2. Figure 6 and Figure 7 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.

[0089] In some specific embodiments, an oil guide structure (not shown in the figure) may be provided on the cylinder body of the steering oil cylinder 2, and the oil guide structure may guide the leaked liquid on the cylinder body of the steering oil cylinder 2 to the liquid receiving chamber of the liquid collecting device. The oil guide structure may be welded to the cylinder body of the steering oil cylinder 2 or integrally formed on the cylinder body of the steering oil cylinder 2, and the structure of the oil guide structure may be various, such as a guide plate or a guide column.

[0090] In some specific embodiments, Figure 5 , Figure 6 and Figure 7 As shown, the liquid collecting device also includes a liquid collecting pan 33 disposed below the cylinder body of the steering oil cylinder 2. The liquid collecting pan 33 is provided with a liquid outlet, and the steering oil cylinder receiving pan 31 is located below the liquid outlet. By providing the liquid collecting pan 33, the liquid collecting pan 33 is arranged close to the steering oil cylinder 2, which can effectively prevent the leaked liquid from splashing when dripping, so that the liquid collecting effect is better.

[0091] In some specific embodiments, the liquid collecting tray 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 tray 33, and the vertical projection of the cylinder body of the steering cylinder 2 is located within the vertical projection of the liquid collecting tray 33. In this way, the liquid collection effect is better and the structure is more compact.

[0092] 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 tray 33 is less than or equal to 20 mm.

[0093] 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 3 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.

[0094] Alternatively, if Figure 5 As shown, the connection 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.

[0095] In some specific embodiments, Figure 5 , Figure 6 and Figure 7 As shown, the liquid receiving pan mounting seat 32 may be provided with an insertion slot, and the steering cylinder liquid receiving pan 31 may be detachably inserted into the insertion slot. The liquid collecting device further includes a limiting structure 34, which has a locked state and an unlocked state. The limiting structure 34 can lock the steering cylinder liquid receiving pan 31 in the insertion slot in the locked state, and the steering cylinder liquid receiving pan 31 can be pulled out of the insertion slot in the unlocked state of the limiting structure 34. In this way, the steering cylinder liquid receiving pan 31 can be stably limited in the liquid receiving pan mounting seat 32 to prevent the steering cylinder liquid receiving pan 31 from falling out during operation. Among them, the installation structure and installation position of the limiting structure 34 can be varied. 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.

[0096] Specifically, Figure 5As shown, the steering cylinder 2 is arranged along the left-right direction of the chassis 1 and is located above the running wheel and the wheel cover. The liquid collecting pan 33 is in the shape of a flat pan. The thickness of the steering cylinder liquid collecting pan 31 is greater than that of the liquid collecting pan 33. In this way, the liquid collecting pan 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 liquid collecting pan 31 is arranged on the inner side below the liquid collecting pan 33 along the axial direction of the steering cylinder 2. In this way, the outer side below the liquid collecting pan 33 can form a space for avoiding components such as the wheel cover, and the structure is reasonable and compact.

[0097] In some specific embodiments, Figure 5 , Figure 6 and Figure 7 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 arranged on the liquid receiving pan mounting seat 32 or the cylinder body of the steering cylinder 2, the limiting shaft 341 is movably arranged in the limiting assembly and can move axially, and one end of the limiting shaft 341 is provided with an expanded diameter shaft head. One end of the elastic reset member 342 abuts on the expanded diameter shaft head, and the other end of the elastic reset member 342 abuts on the limiting assembly. Among them, when the limiting structure 34 is in the 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 31 in the insertion 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 liquid receiving pan 31. In this way, the locking and limiting of the steering cylinder liquid receiving pan 31 can be achieved.

[0098] Furthermore, if Figure 6 and Figure 7 As shown, in order to facilitate the manufacture and installation of the liquid collection device, the limiting assembly may include a sleeve fixing 343 and a sleeve 344. The sleeve fixing 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 member 345.

[0099] Furthermore, if Figure 6 and Figure 7 As shown, a retaining ring 346 passed 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.

[0100] In some specific embodiments, the steering cylinder fluid collecting pan 31 may be a sheet metal part, and a magnetic part 35 for magnetically adsorbing the steering cylinder fluid 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 may be adjusted to a suitable installation height through fasteners and adjustment gaskets, thereby eliminating vibration and noise of the steering cylinder fluid collecting pan 31 during the operation of the aerial work platform.

[0101] 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 cavity from overflowing during the operation of the aerial work platform.

[0102] In summary, the aerial work platform of the present application is respectively provided with devices for collecting the leakage of the steering cylinder, lifting cylinder and power unit, which can greatly improve the liquid leakage collection effect of the entire aerial work platform, and has a better application in work occasions with relatively high requirements for the working environment. In addition, the liquid-contacting parts of the device can be disassembled, which is convenient for cleaning and returning the collected leaked liquid, and is simple to operate and maintain. Magnetic parts are used at the bottom of the device to adsorb the liquid-contacting parts to prevent the device from vibrating and generating noise during operation. At the same time, there are limit positions on all sides to eliminate the risk of the liquid-contacting parts falling during operation.

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

[0104] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0106] 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: A chassis (1) is provided with a steering cylinder (2), a lifting cylinder (5) and a power unit (6); A liquid collecting device, arranged on the steering cylinder (2) and used for collecting liquid leakage from the steering cylinder (2); An oil cylinder liquid collection assembly, arranged on the chassis (1) and used to receive the leaked liquid of the lifting oil cylinder (5); A liquid collection assembly is arranged on the chassis (1) and is used to receive liquid leakage from the power unit (6).

2. The aerial work platform according to claim 1, characterized in that: The chassis (1) is provided with a maintenance opening and a door body (12) capable of covering the maintenance opening; the power unit (6) is arranged in the chassis (1); the liquid collection assembly is located below the power unit (6) and comprises a power unit liquid receiving pan (71) and a liquid receiving pan mounting member (72); the liquid receiving pan mounting member (72) has a liquid receiving pan slide groove; the power unit liquid receiving pan (71) is slidably arranged in the liquid receiving pan slide groove and is provided with a liquid receiving cavity for receiving liquid leakage from the power unit (6); The door body (12) can lock the power unit liquid receiving pan (71) in the liquid receiving pan slide groove when the door body (12) is in a closed state, and the power unit liquid receiving pan (71) can be drawn out of the liquid receiving pan slide groove when the door body (12) is in an open state.

3. The aerial work platform according to claim 2, characterized in that: The liquid receiving pan slide groove is connected along the sliding direction of the power unit liquid receiving pan (71), and the liquid collection assembly also includes a liquid receiving pan limiter (73) for limiting the power unit liquid receiving pan (71), and the liquid receiving pan limiter (73) is arranged on the inner side of the liquid receiving pan slide groove along the sliding direction.

4. The aerial work platform according to claim 3, characterized in that: The bottom plate (1) is provided with a strip-shaped hole along the sliding direction, and the liquid receiving tray stopper (73) is adjustably arranged in the strip-shaped hole via a fastener.

5. The aerial work platform according to claim 1, characterized in that: The steering cylinder (2) is rotatably arranged on the chassis, the liquid collecting device swings synchronously with the steering cylinder (2), and the liquid collecting device comprises a detachable steering cylinder liquid collecting pan (31), wherein the steering cylinder liquid collecting pan (31) is provided with a liquid collecting chamber for receiving liquid leakage from the steering cylinder (2).

6. The aerial work platform according to claim 5, 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 used to be connected to the cylinder body of the steering oil cylinder (2).

7. The aerial work platform according to claim 6, characterized in that: The liquid collecting pan mounting seat (32) further comprises a liquid collecting pan (33) arranged below the cylinder body of the steering oil cylinder (2); the liquid collecting pan (33) is provided with an oil outlet; the steering oil cylinder liquid collecting pan (31) is located below the oil outlet; the liquid collecting pan (33) extends along the axial direction of the steering oil cylinder (2); the vertical projection of the cylinder body of the steering oil cylinder (2) is located within the vertical projection of the liquid collecting pan (33); and the vertical projection area of ​​the liquid collecting chamber is less than or equal to half of the vertical projection area of ​​the liquid collecting pan (33).

8. The aerial work platform according to claim 1, characterized in that: The aerial work platform also includes: The mounting structure (11) is arranged on the chassis (1); a hollow portion is provided at the bottom of the mounting structure (11); the lifting cylinder (5) is mounted on the mounting structure (11) and is located above the hollow portion; the cylinder liquid collecting assembly comprises a cylinder liquid receiving member (41) and a liquid baffle plate (43); the cylinder liquid receiving member (41) is arranged in the hollow portion and is provided with a liquid receiving cavity for receiving liquid leakage from the lifting cylinder (5); the liquid baffle plate (43) is arranged on the mounting structure (11) and is used to guide liquid leakage from the lifting cylinder (5) into the liquid receiving cavity.

9. The aerial work platform according to claim 8, characterized in that: The oil cylinder liquid collection assembly comprises two liquid baffle plates (43) arranged at intervals, a liquid guide channel is defined between the inner plate surfaces of the two liquid baffle plates (43) and the outer wall surface of the mounting structure (11), and the lifting oil cylinder (5) is located in the liquid guide channel.

10. The aerial work platform according to claim 9, characterized in that: The lower plate ends of the two liquid baffle plates (43) are bent in a direction approaching each other, so that the lower end outlet of the liquid guiding channel is gradually narrowed.

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