Aerial work platform and engineering machinery

Abstract

The aerial work platform comprises a platform body, and a first guardrail and a second guardrail are arranged on the two sides of the platform body; the protective door is arranged between the first guardrail and the second guardrail and comprises a fixing rod, a first connecting rod, a second connecting rod and a connecting rod, the fixing rod is fixedly connected with the first guardrail, the first connecting rod and the second connecting rod are hinged to the two ends of the fixing rod respectively, and the two ends of the connecting rod are hinged to the first connecting rod and the second connecting rod respectively; and the output end of the driving part is hinged to the first connecting rod, and the driving part is used for driving the first connecting rod to rotate around the fixing rod so as to lift and put down the protective door. Compared with the prior art, the aerial work platform and the engineering machine have the advantages that the occupied space is small, and it can be guaranteed that enough access space is provided when the door is completely opened.

Description

Technical Field

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

[0002] An aerial work platform is a machine used to transport workers, tools, and work materials to a target location for aerial work. The work platform is surrounded by a safety fence that provides protection. The safety fence also includes entry and exit doors for workers.

[0003] Currently, most platform access doors are inward-opening or have a limit rod structure. When the platform is small and needs to carry cargo, the inward-opening structure is difficult to meet the functional requirements, and the limit rod structure cannot meet the size requirements for convenient cargo entry and exit.

[0004] Therefore, there is an urgent need for an aerial work platform and engineering machinery that takes up less space and can ensure sufficient entry and exit space when the door is fully opened. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides an aerial work platform and engineering machinery, which occupy a small space and can ensure that there is enough space for entry and exit when the door is fully opened.

[0006] The technical solutions provided in this application are as follows:

[0007] An aerial work platform, comprising:

[0008] A platform, wherein a first guardrail and a second guardrail are provided on both sides of the platform;

[0009] a protective door provided between the first guardrail and the second guardrail, the protective door comprising a fixed rod, a first connecting rod, a second connecting rod, and a connecting rod, wherein the fixed rod is fixedly connected to the first guardrail, the first connecting rod and the second connecting rod are respectively hinged to two ends of the fixed rod, and the two ends of the connecting rod are respectively hinged to the first connecting rod and the second connecting rod;

[0010] A driving member, wherein the output end of the driving member is hinged to the first connecting rod, and is used to drive the first connecting rod to rotate around the fixing rod to lift and lower the protective door.

[0011] Preferably, the first connecting rod is arranged below the second connecting rod, the fixed end of the driving member is hinged to the fixed rod, and the telescopic end of the driving member is hinged to an end of the first connecting rod close to the first guardrail.

[0012] Preferably, it also includes:

[0013] a first limiting member provided on the connecting rod;

[0014] A second position-limiting member is provided on the second guardrail, and an opening groove for cooperating with the first position-limiting member is provided on a side of the second position-limiting member away from the second guardrail, and the opening groove extends along the height direction of the second guardrail.

[0015] Preferably, the second limiting member is specifically a limiting block.

[0016] Preferably, it also includes:

[0017] a first mounting block provided on a side of the first connecting rod close to the first guardrail, the first mounting block being configured to be hingedly connected to the telescopic end of the driving member;

[0018] A second mounting block is provided on the fixing rod, and the second mounting block is used for being hinged to the fixing end of the driving member.

[0019] Preferably, the driving component is any one of a hydraulic cylinder, a pneumatic cylinder and a linear motor.

[0020] Preferably, the driving member is a gas spring.

[0021] Preferably, the first connecting rod is a straight bar structure, and the second connecting rod is an arched bar structure.

[0022] Preferably, it also includes:

[0023] A bottom bar is provided between the first guardrail and the second guardrail, the platform is provided above the bottom bar, and the platform is fixedly connected to the bottom bar;

[0024] The first guardrail, the second guardrail and the bottom bar are specifically an integrally formed structure.

[0025] An engineering machine comprises any one of the above-mentioned aerial work platforms.

[0026] The utility model provides an aerial work platform, firstly, because it is provided with a platform and a protective door, it is used to carry workers, tools and work materials. First and second guardrails are provided on both sides of the platform. The protective door is arranged between the first and second guardrails. The protective door includes a fixed rod, a first connecting rod, a second connecting rod and a connecting rod. The fixed rod is fixedly connected to the first guardrail. The first and second connecting rods are respectively hinged to the ends of the fixed rod. The connecting rod is provided at one end of the first and second connecting rods away from the fixed rod, and the ends of the connecting rod are respectively hinged to the first and second connecting rods. Since the four sides of the protective door are connected by hinges, the protective door adopts an unstable quadrilateral structure, and deformation is generated by the protective door itself. Secondly, a driving member is also provided. The output end of the driving member is connected to the first connecting rod. The driving member drives the first connecting rod to rotate around the fixed rod, thereby causing the protective door itself to deform and drive the connecting rod to move in a vertical direction. It does not occupy excess space on the platform, and the door can be opened and closed to ensure that workers have sufficient space to enter and exit. It can be seen that compared with the prior art, the aerial work platform in the embodiment of the utility model occupies less space and can ensure that there is enough space for entry and exit when the door is fully opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 A schematic diagram of the structure of the aerial work platform provided by an embodiment of the utility model when it is opened;

[0029] Figure 2 A schematic diagram of the structure of the aerial work platform provided by an embodiment of the utility model when closed;

[0030] Figure 3 A structural schematic diagram of a front view of an aerial work platform provided in an embodiment of the utility model.

[0031] Figure numerals: 1, platform; 2, first guardrail; 3, second guardrail; 41, fixing rod; 42, first connecting rod; 43, second connecting rod; 44, connecting rod; 5, driving member; 61, first limiting member; 62, second limiting member. DETAILED DESCRIPTION

[0032] In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0033] It should be noted that when an element is referred to as being “fixed on” or “set on” another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0035] Furthermore, 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. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0036] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0037] The embodiments of the present invention are written in a progressive manner.

[0038] like Figures 1 to 3As shown, an embodiment of the utility model provides an aerial work platform, including: a platform 1, with a first guardrail 2 and a second guardrail 3 on both sides of the platform 1; a protective door arranged between the first guardrail 2 and the second guardrail 3, the protective door including a fixed rod 41, a first connecting rod 42, a second connecting rod 43 and a connecting rod 44, the fixed rod 41 is fixedly connected to the first guardrail 2, the first connecting rod 42 and the second connecting rod 43 are respectively hinged to the two ends of the fixed rod 41, and the two ends of the connecting rod 44 are respectively hinged to the first connecting rod 42 and the second connecting rod 43; a driving member 5, the output end of the driving member 5 is hinged to the first connecting rod 42, and is used to drive the first connecting rod 42 to rotate around the fixed rod 41, so as to lift and lower the protective door.

[0039] Most existing access doors on aerial work platforms are either inward-opening or have a stop bar structure. Inward-opening doors hinge on one side of the platform, allowing the door to rotate around the hinge when opened. However, when the platform is small and needs to carry cargo, inward-opening doors are difficult to meet functional requirements. Stop bar structures, which use fixed stop bars installed horizontally at the entrance and exit, do not meet the size requirements for convenient cargo entry and exit.

[0040] In order to solve the above technical problems, the utility model provides a new type of aerial work platform. First, a platform 1 and a protective door are provided for carrying workers, tools and work materials. A first guardrail 2 and a second guardrail 3 are provided on both sides of the platform 1. The protective door is arranged between the first guardrail 2 and the second guardrail 3. The protective door includes a fixed rod 41, a first connecting rod 42, a second connecting rod 43 and a connecting rod 44, wherein the fixed rod 41 is fixedly connected to the first guardrail 2, the first connecting rod 42 and the second connecting rod 43 are respectively hinged to the two ends of the fixed rod 41, and the connecting rod 44 is arranged at one end of the first connecting rod 42 and the second connecting rod 43 away from the fixed rod 41, and the two ends of the connecting rod 44 are respectively hinged to the first connecting rod 42 and the second connecting rod 43. Since the four sides of the protective door are connected in a hinged manner, the protective door adopts an unstable quadrilateral structure, and deformation is generated by the protective door itself. Secondly, a driving member 5 is provided. The output end of the driving member 5 is connected to the first connecting rod 42. The driving member 5 drives the first connecting rod 42 to rotate around the fixed rod 41, thereby deforming the protective door itself and driving the connecting rod 44 to move in the vertical direction. This does not occupy excess space on the platform, and the door opening and closing actions are achieved, ensuring that workers have sufficient space for entry and exit. As can be seen from this, compared with the prior art, the aerial work platform in the embodiment of the utility model takes up less space and can ensure sufficient space for entry and exit when the door is fully opened.

[0041] It should be noted that the aerial work platform in the embodiment of the present invention adopts a quadrilateral hinged structure and can be deformed by itself. When in the closed state, the first connecting rod 42 and the second connecting rod 43 are located between the first guardrail 2 and the second guardrail 3 to protect the operator. When the door needs to be opened, the driving member 5 drives the first connecting rod 42 to rotate around the fixed rod 41, and the protective door itself is deformed, driving the connecting rod 44 to be lifted in the vertical direction, thereby realizing the door opening.

[0042] On the one hand, since the protective door can be lifted, it can ensure that workers, tools and work materials have sufficient space to enter and exit. On the other hand, since the driving member 5 drives the first connecting rod 42 to rotate, the connecting rod 44 is lifted in the vertical direction and does not occupy excess space on the platform position. The required space is smaller and can better meet the loading needs.

[0043] In the above structure, as one embodiment, the first connecting rod 42 in the embodiment of the present invention can be located above the second connecting rod 43, or the first connecting rod 42 can be located below the second connecting rod 43. The protective door can be opened and closed by rotating the first connecting rod 42 through the driving member 5, and this application does not limit this.

[0044] As one preferred embodiment, the first connecting rod 42 in the embodiment of the present invention is disposed below the second connecting rod 43. To facilitate the opening and closing of the protective door by the driving member 5, the fixed end of the driving member 5 in the embodiment of the present invention is hinged to the fixed rod 41, and the telescopic end of the driving member 5 is hinged to the first connecting rod 42. The telescopic end of the driving member 5 drives the rotation of the first connecting rod 42 through its extension and retraction. Furthermore, to reduce the travel of the telescopic end of the driving member 5, as one embodiment, the telescopic end of the driving member 5 in the embodiment of the present invention is hinged to the end of the first connecting rod 42 that is closest to the first guardrail 2.

[0045] In the above structure, as one specific embodiment, the aerial work platform in the embodiment of the present invention further includes a first stopper 61 and a second stopper 62, wherein the first stopper 61 is provided on the connecting rod 44, and the second stopper 62 is provided on the second guardrail 3. The second stopper 62 is provided with an opening slot on a side away from the second guardrail 3, and the opening slot is used for cooperating with the first stopper 61. The opening slot extends along the height direction of the second guardrail 3 and is provided through the height direction of the second guardrail 3. When the protective door is in the closed state, the first stopper 61 is received in the opening slot, and the stopper plates on both sides of the opening slot constrain the protective door from opening inward and outward. When the protective door needs to be opened, the first connecting rod 42 is rotated by the driving member 5, thereby lifting the connecting rod 44. When the protective door needs to be closed, the first connecting rod 42 is rotated in the opposite direction by the driving member 5, and the connecting rod 44 enters the opening slot from above the second stopper 62, constraining the protective door through both sides of the opening slot.

[0046] In the above structure, in order to install the driving member 5, as one of the implementation methods, the aerial work platform in the embodiment of the utility model further includes a first mounting block and a second mounting block, wherein the first mounting block is fixedly arranged on the side of the first connecting rod 42 close to the first guardrail 2, and the first mounting block is used to be hinged to the telescopic end of the driving member 5, and the second mounting block is arranged on the fixed rod 41, and the second mounting block is used to be hinged to the fixed end of the driving member 5.

[0047] Furthermore, the driving component 5 is specifically any one of a hydraulic cylinder, a pneumatic cylinder and a linear motor.

[0048] As a preferred embodiment, the driving member 5 in the embodiment of the present utility model is preferably a gas spring.

[0049] When the door needs to be opened, the gas spring pushes the first connecting rod 42 to rotate about the fixed rod 41, driving the connecting rod 44, the first connecting rod 42, and the second connecting rod 43 to rise. When the door needs to be closed, the gas spring and the weight of the door itself cause the connecting rod 44 to move downward to close the door. The first stopper 61 slides into the opening slot to close the door. The gas spring acts as a buffer during the door's descent. After the door is closed, the first stopper 61, restrained by the opening slot, prevents the door from opening freely inward or outward, providing increased safety.

[0050] As a specific implementation, the first connecting rod 42 in the embodiment of the present invention is specifically a straight bar structure.

[0051] As a specific implementation, the second connecting rod 43 in the embodiment of the present utility model is specifically an arched strip structure.

[0052] Furthermore, as one of the specific implementation methods, the aerial work platform in the embodiment of the utility model also includes a bottom bar, wherein the bottoms of the first guardrail 2 and the second guardrail 3 are connected through the bottom bar, the platform 1 is arranged above the bottom bar, and the platform 1 is fixedly connected to the bottom bar, and the first guardrail 2, the second guardrail 3 and the bottom bar are an integrated molded structure.

[0053] The present invention also provides an engineering machine including the above-mentioned aerial work platform, which can also achieve the technical effect of occupying a small space and ensuring that there is enough space for entry and exit when the door is fully opened.

[0054] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An aerial work platform, characterized in that: include: A platform (1), wherein a first guardrail (2) and a second guardrail (3) are provided on both sides of the platform (1); A protective door is provided between the first guardrail (2) and the second guardrail (3), the protective door comprising a fixed rod (41), a first connecting rod (42), a second connecting rod (43) and a connecting rod (44), the fixed rod (41) being fixedly connected to the first guardrail (2), the first connecting rod (42) and the second connecting rod (43) being hinged to two ends of the fixed rod (41), and the two ends of the connecting rod (44) being hinged to the first connecting rod (42) and the second connecting rod (43); A driving member (5), wherein an output end of the driving member (5) is hinged to the first connecting rod (42) and is used to drive the first connecting rod (42) to rotate around the fixing rod (41) to lift and lower the protective door; A first limiting member (61) provided on the connecting rod (44); A second limiting member (62) is provided on the second guardrail (3), and an opening groove for cooperating with the first limiting member (61) is provided on a side of the second limiting member (62) away from the second guardrail (3), the opening groove extending along the height direction of the second guardrail (3).

2. The aerial work platform according to claim 1, characterized in that: The first connecting rod (42) is arranged below the second connecting rod (43), the fixed end of the driving member (5) is hinged to the fixed rod (41), and the telescopic end of the driving member (5) is hinged to an end of the first connecting rod (42) close to the first guardrail (2).

3. The aerial work platform according to claim 1, characterized in that: The first limiting member (61) is specifically a limiting block.

4. The aerial work platform according to any one of claims 1 to 3, characterized in that: Also includes: a first mounting block provided on a side of the first connecting rod (42) close to the first guardrail (2), the first mounting block being used for being hinged to the telescopic end of the driving member (5); A second mounting block is provided on the fixing rod (41), and the second mounting block is used for being hinged to the fixing end of the driving member (5).

5. The aerial work platform according to any one of claims 1 to 3, characterized in that: The driving member (5) is specifically any one of a hydraulic cylinder, a pneumatic cylinder and a linear motor.

6. The aerial work platform according to any one of claims 1 to 3, characterized in that: The driving member (5) is specifically a gas spring.

7. The aerial work platform according to any one of claims 1 to 3, characterized in that: The first connecting rod (42) is specifically a straight strip structure, and the second connecting rod (43) is specifically an arched strip structure.

8. The aerial work platform according to any one of claims 1 to 3, characterized in that: Also includes: A bottom bar for connecting the first guardrail (2) and the second guardrail (3), the platform (1) being fixedly connected to the bottom bar; The first guardrail (2), the second guardrail (3) and the bottom bar are specifically an integrally formed structure.

9. An engineering machine, characterized in that: An aerial work platform comprising any one of claims 1 to 8.

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