Connecting component of crank arm of overhead working truck

Abstract

The connecting component is integrally formed by a first plate body, a second plate body, a third plate body and a fourth plate body, the first plate body, the second plate body and the third plate body are parallel to one another and are perpendicular to the fourth plate body, a gap is reserved between the first plate body and the second plate body, the first plate body and the second plate body jointly form a first U-shaped groove, and a second U-shaped groove is formed between the second plate body and the fourth plate body. A gap is reserved between the second plate body and the third plate body, and the second plate body and the fourth plate body jointly form a second U-shaped groove; one side of the first plate body extends outwards to be integrally connected with a first extension plate, one side of the second plate body extends outwards to be integrally connected with a second extension plate, and the first extension plate and the second extension plate are oppositely arranged; the outer side of the middle of the first plate body is fixedly connected with a first shaft seat, the outer side of the middle of the second plate body is fixedly connected with a second shaft seat, and the first shaft seat and the second shaft seat are oppositely arranged. The connecting component is simple and compact in structure, stable and reliable, and the safety and reliability of the overhead working truck can be improved; and the folding arm of the overhead working truck can be conveniently mounted and connected.

Description

Technical Field

[0001] The utility model belongs to the field of parts of aerial work vehicles, and in particular relates to a connecting component of a crank arm of an aerial work vehicle. Background Art

[0002] Aerial work platforms are products that serve various industries for high-altitude operations, equipment installation, maintenance and other mobile high-altitude operations. Aerial work platforms can be divided into straight-arm and articulated-arm types according to the arm span. The articulated-arm aerial work platform is designed with a multi-stage folding arm combination, which is flexible and convenient. It can cross certain obstacles and perform multi-point operations in one place. The present application relates to an articulated-arm aerial work vehicle.

[0003] The lifting device of the articulated boom aerial work vehicle is a device that hinges multiple folding arms together in sequence through connecting parts. The connecting arms are lifted up by a cylinder or an oil cylinder to tilt them upward, thereby achieving the purpose of raising the working platform. The structural performance of the connecting parts determines whether the articulated boom aerial work vehicle is safe and reliable. Summary of the invention

[0004] Based on the content in the background technology, the utility model discloses a connecting component of a crank arm of an aerial work vehicle, which has the characteristics of stable and reliable structure.

[0005] The provided connecting member is integrally composed of a first plate body, a second plate body, a third plate body, and a fourth plate body. The first plate body, the second plate body, and the third plate body are parallel to each other and perpendicular to the fourth plate body. The first plate body, the second plate body, and the third plate body are respectively and integrally connected to the fourth plate body. A gap is left between the first plate body and the second plate body, and the first plate body and the fourth plate body together form a first U-shaped groove. A gap is left between the second plate body and the third plate body, and the second plate body and the fourth plate body together form a second U-shaped groove. One side of the first plate body extends outwardly to be integrally connected with a first extension plate, and one side of the second plate body extends outwardly to be integrally connected with a second extension plate, and the first extension plate and the second extension plate are arranged opposite to each other. A first shaft seat is fixedly connected to the outer side of the middle of the first plate body, and a second shaft seat is fixedly connected to the outer side of the middle of the second plate body, and the first shaft seat and the second shaft seat are arranged opposite to each other.

[0006] The above-mentioned integrally constructed connecting member has a simple and compact structure, is stable and reliable, and the first U-shaped groove and the second U-shaped groove formed by each plate body and the extended plate formed by extension can facilitate the installation and connection of the folding arm of the aerial work vehicle.

[0007] Furthermore, the first extension plate and the second extension plate of the connecting member are respectively provided with shaft holes; the first plate body, the second plate body and the third plate body of the connecting member are respectively provided with a plurality of matching fixing installation holes,

[0008] Furthermore, a support block and a support column are fixedly arranged in the first U-shaped groove of the connecting member and between the first plate body and the second plate body, and the support block and the support column are also provided with through holes at positions corresponding to the fixed mounting holes on the first plate body and the second plate body; the arrangement of the support block and the support column can support the first plate body and the second plate body, thereby enhancing the strength and stability of the connecting member.

[0009] The connection member of the above-mentioned aerial work vehicle crank arm is used as follows:

[0010] One end of the first folding arm of the aerial work vehicle is hinged between the first extension plate and the second extension plate of the connecting member through a rotating shaft, the cylinder end of the hydraulic cylinder is hinged between the first shaft seat and the second shaft seat through a rotating shaft, and the piston rod end of the hydraulic cylinder is hinged to the middle part of the first folding arm through a rotating shaft. After the connection and installation of the connecting member, the first folding arm can be adjusted in angle under the drive of the hydraulic cylinder;

[0011] One end of the second folding arm of the aerial work vehicle is fixedly installed in the second U-shaped groove of the connecting member. When one end of the second folding arm is set in the second U-shaped groove of the connecting member, a plurality of pins pass through the corresponding fixed installation holes on the third plate body, the corresponding through holes of the second folding arm, the corresponding fixed installation holes on the second plate body and the corresponding fixed installation holes on the first plate body in sequence to realize the fixed installation of the second folding arm. Of course, the pins can also pass through the through holes of the support blocks or support columns. Such a fixed installation method can make the fixation between the second folding arm and the connecting member firm and stable, and not easy to loosen.

[0012] Through the above technical solution, the utility model at least includes the following beneficial effects:

[0013] The connecting component of the aerial work vehicle's curved arm described in the present application is integrally formed of multiple plates, has a simple and compact structure, is stable and reliable, and can improve the safety and reliability of the aerial work vehicle; the first U-shaped groove and the second U-shaped groove formed by each plate and the extended plate formed by extension can also facilitate the installation and connection of the aerial work vehicle's folding arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the connecting member described in the embodiment of the present application;

[0015] Figure 2 It is a schematic diagram of the connection between the connecting member described in the embodiment of the present application and the folding arm and hydraulic cylinder of the aerial work vehicle;

[0016] Figure 3 for Figure 2 The enlarged view of point A in the middle; DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the structures related to the present invention.

[0018] In the description of this application, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship are only used for exemplary description and cannot be understood as limiting this patent; if there are terms such as "first", "second", etc., they are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the said features. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0019] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0020] refer to Figure 1 A connecting member of an aerial work vehicle crank arm, the connecting member is integrally composed of a first plate body 301, a second plate body 302, a third plate body 303, and a fourth plate body 304. The first plate body 301, the second plate body 302, and the third plate body 303 are parallel to each other and perpendicular to the fourth plate body 304. A gap is left between the first plate body 301 and the second plate body 302, and the first plate body 301 and the second plate body 302 form a first U-shaped groove together with the fourth plate body 304. A gap is left between the second plate body 302 and the third plate body 303, and the fourth plate body 304 forms a first U-shaped groove. The plate bodies 304 together form a second U-shaped groove; one side of the first plate body 301 extends outwardly and is integrally connected to a first extension plate 305, and one side of the second plate body 302 extends outwardly and is integrally connected to a second extension plate 306, and the first extension plate 305 and the second extension plate 306 are arranged opposite to each other; a first shaft seat 307 is fixedly connected to the outer side of the middle part of the first plate body 301, and a second shaft seat 308 is fixedly connected to the outer side of the middle part of the second plate body 302, and the first shaft seat 307 and the second shaft seat 308 are arranged opposite to each other.

[0021] In a specific embodiment, the first extension plate 305 and the second extension plate 306 of the connecting member are respectively provided with an axial hole 309; the first plate body 301, the second plate body 302 and the third plate body 303 of the connecting member are respectively provided with a plurality of matching fixing installation holes 310.

[0022] In a further embodiment, a support block 311 and a support column 312 are fixedly arranged in the first U-shaped groove of the connecting member and between the first plate body 301 and the second plate body 302, and the support block 311 and the support column 312 are also provided with through holes at positions corresponding to the fixed mounting holes 310 on the first plate body 301 and the second plate body 302; the arrangement of the support block 311 and the support column 312 can support the first plate body 301 and the second plate body 302, thereby enhancing the strength and stability of the connecting member.

[0023] The above-mentioned integrally formed connecting member has a simple and compact structure, is stable and reliable, and the first U-shaped groove and the second U-shaped groove formed by each plate body and the extended plate formed by extension can facilitate the installation and disassembly of the first folding arm 1 and the second folding arm 2.

[0024] refer to Figure 2 and Figure 3 The connection components of the above-mentioned aerial work vehicle crank arm are used as follows:

[0025] One end of the first folding arm 1 of the aerial work vehicle is hinged between the first extension plate 305 and the second extension plate 306 of the connecting member through a rotating shaft; the cylinder end of the hydraulic cylinder 4 is hinged between the first shaft seat 307 and the second shaft seat 308 of the connecting member through a rotating shaft, and the piston rod end of the hydraulic cylinder 4 is hinged to the middle part of the first folding arm 1 through a rotating shaft, so that under the drive of the hydraulic cylinder 4, the first folding arm 1 can adjust the angle;

[0026] One end of the second folding arm 2 of the aerial work vehicle is fixedly installed in the second U-shaped groove of the connecting member. When one end of the second folding arm 2 is set in the second U-shaped groove of the connecting member, multiple pins pass through the corresponding fixed installation holes 310 on the third plate body 303, the corresponding through holes of the second folding arm 2, the corresponding fixed installation holes 310 on the second plate body 302 and the corresponding fixed installation holes 310 on the first plate body 301 in sequence to realize the fixed installation of the second folding arm 2. Of course, the pins can also pass through the through holes on the support block 311 and the support column 312. Such a fixed installation method can make the fixation between the second folding arm 2 and the connecting member firm and stable, and not easy to loosen.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Based on the present invention and the above description, relevant personnel can make various changes and modifications without departing from the technical idea of ​​the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting member for an aerial work vehicle crank arm, characterized in that: The connecting member is integrally formed by a first plate body (301), a second plate body (302), a third plate body (303), and a fourth plate body (304); the first plate body (301), the second plate body (302), and the third plate body (303) are parallel to each other and perpendicular to the fourth plate body (304); a gap is left between the first plate body (301) and the second plate body (302), and the first plate body (301) and the second plate body (302) form a first U-shaped groove together with the fourth plate body (304); a gap is left between the second plate body (302) and the third plate body (303), and the first plate body (303) and the fourth plate body (304) form a first U-shaped groove; The first plate body (301) and the second plate body (302) are connected to a first extension plate (305) on one side extending outward, and are connected to a second extension plate (306) on one side extending outward, and are arranged opposite to each other; a first shaft seat (307) is fixedly connected to the outer side of the middle part of the first plate body (301), and a second shaft seat (308) is fixedly connected to the outer side of the middle part of the second plate body (302), and the first shaft seat (307) and the second shaft seat (308) are arranged opposite to each other.

2. The connecting member of the boom of an aerial work vehicle according to claim 1, characterized in that: Axle holes (309) are respectively provided on the first extension plate (305) and the second extension plate (306); and a plurality of matching fixing holes (310) are respectively provided on the first plate body (301), the second plate body (302) and the third plate body (303).

3. The connecting member of the boom of an aerial work vehicle according to claim 2, characterized in that: A support block (311) and a support column (312) are fixedly arranged in the first U-shaped groove and between the first plate body (301) and the second plate body (302); the support block (311) and the support column (312) are also provided with through holes at positions corresponding to the fixed installation holes (310) on the first plate body (301) and the second plate body (302).

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