Self-walking crank arm overhead working truck

Abstract

The utility model provides a self-walking crank arm overhead working truck, and relates to the technical field of overhead working equipment. The self-walking crank arm overhead working truck comprises a walking chassis, a folding arm frame and a working platform, an arm frame connecting plate is arranged on the walking chassis, the folding arm frame comprises a pivot connecting block, a first supporting rod and a first connecting rod are hinged to the lower side of the pivot connecting block, and the first supporting rod and the first connecting rod are both hinged to the arm frame connecting plate; a lifting driving part is hinged to the walking chassis and hinged to the first supporting rod, a platform connecting plate is arranged on the working platform, a second supporting rod and a second connecting rod are hinged to the upper side of the pivot connecting block and both hinged to the platform connecting plate, and a connecting rod mechanism is hinged to the first supporting rod. The connecting rod mechanism is hinged to the second supporting rod. The self-walking crank arm overhead working truck has the advantages that the length of the arm support is large, and the working range is large.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work equipment, in particular to a self-propelled articulated boom aerial work platform. Background Art

[0002] An aerial work platform is a device widely applicable to installation, maintenance and working at heights in industries such as municipal administration, electric power, street lamps, advertising, communication, photography, gardening, transportation, docks, airport ports, large industrial and mining enterprises, etc., and has the advantages of center downward displacement, high stability and flexible operation.

[0003] In the existing aerial work platforms, it mainly includes a vehicle body and a boom arranged on the vehicle body. The working range of the aerial work platform mainly depends on the length of the boom. In actual application, due to the limitation of the boom length, the working range of the aerial work platform is small and it cannot be applied to multiple working conditions. Therefore, it is necessary to design a self-propelled articulated boom aerial work platform with a longer boom length so that the working range is larger. Summary of the Utility Model

[0004] Aiming at the problems in the above-mentioned prior art, this application proposes a self-propelled articulated boom aerial work platform, which has the advantages of a longer boom length and a larger working range.

[0005] The utility model provides a self-propelled articulated boom aerial work platform. The self-propelled articulated boom aerial work platform includes a walking chassis, a folding boom and a working platform. An arm connecting plate is arranged on the walking chassis. The folding boom includes a central connecting block. A first support rod and a first connecting rod are hinged to the lower side of the central connecting block. The first support rod and the first connecting rod are parallel and equal in length. Both the first support rod and the first connecting rod are hinged to the arm connecting plate. A lifting driving member is hinged to the walking chassis. The lifting driving member is hinged to the first support rod. The lifting driving member can drive the first support rod to rotate. A platform connecting plate is arranged on the working platform. A second support rod and a second connecting rod are hinged to the upper side of the central connecting block. The second support rod and the second connecting rod are parallel and equal in length. Both the second support rod and the second connecting rod are hinged to the platform connecting plate. A connecting rod mechanism is hinged to the first support rod. The connecting rod mechanism is hinged to the second support rod. The first support rod can drive the second support rod to rotate in the opposite direction through the connecting rod mechanism.

[0006] As a further improvement of the above technical solution:

[0007] For the above-mentioned self-propelled articulated boom aerial work platform, further, the connecting rod mechanism includes a first connecting rod. A second connecting rod is hinged to the second support rod. The first connecting rod and the second connecting rod are hinged.

[0008] For the above-mentioned self-propelled articulated boom aerial work platform, further, the traveling chassis includes a vehicle body, universal wheels are installed on both sides of the front end of the vehicle body, drive wheels are installed on both sides of the rear end of the vehicle body, a drive mechanism is installed on the vehicle body, and the drive mechanism is used to control the rotation of the two drive wheels respectively.

[0009] For the above-mentioned self-propelled articulated boom aerial work platform, further, a power control mechanism is installed on the vehicle body, and the power control mechanism is used to control the telescoping of the lifting drive member.

[0010] For the above-mentioned self-propelled articulated boom aerial work platform, further, a first buffer pad is provided on the upper surface of the vehicle body, and the central connection block can be placed on the vehicle body through the first buffer pad; a second buffer pad is provided on the lower surface of the work platform, and the work platform can be placed on the central connection block through the second buffer pad.

[0011] For the above-mentioned self-propelled articulated boom aerial work platform, further, the work platform includes a platform support plate, guardrails are provided on the four peripheral edges of the platform support plate, and a guardrail door is provided on the guardrails.

[0012] For the above-mentioned self-propelled articulated boom aerial work platform, further, the guardrail door is a horizontal cross bar, both ends of the horizontal cross bar are respectively sleeved on the vertical bars of the guardrail and can slide up and down relative to the vertical bars of the guardrail, and the horizontal cross bar can be limited on the middle cross bar of the guardrail.

[0013] For the above-mentioned self-propelled articulated boom aerial work platform, further, a lifting controller and a traveling controller are provided on the platform support plate, the lifting controller is used to control the telescoping of the lifting drive member, and the traveling controller is used to control the movement of the traveling chassis.

[0014] For the above-mentioned self-propelled articulated boom aerial work platform, further, a step ladder is provided on the platform support plate, and staff can enter the platform support plate through the step ladder.

[0015] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present utility model can be achieved.

[0016] The self-propelled articulated boom aerial work platform provided by the present utility model has at least the following beneficial effects compared with the prior art: When it is necessary to raise the work platform, the lifting driving member extends to drive the first support rod to rotate. Since the first support rod and the first connecting rod are arranged in parallel and have the same length, the first support rod, the first connecting rod, the boom connecting plate, and the central connecting block form a parallelogram mechanism. The rotation of the first support rod will drive the first connecting rod to rotate synchronously. And since the first support rod drives the second support rod to rotate in the opposite direction through the connecting rod mechanism, and the second support rod and the second connecting rod are arranged in parallel and have the same length, the second support rod, the second connecting rod, the central connecting block, and the platform connecting plate form a parallelogram mechanism. The rotation of the second support rod will drive the second connecting rod to rotate synchronously, so that the work platform rises horizontally. The central connecting block rises relative to the walking chassis, and at the same time the work platform rises synchronously relative to the central connecting block. Compared with the single articulated boom structure, this self-propelled articulated boom aerial work platform has the advantages of a longer boom length and a larger working range.

[0017] In order to make the above-mentioned objects, features, and advantages of the present utility model more obvious and understandable, the following will specifically give preferred embodiments and, in conjunction with the accompanying drawings, make the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0019] In the following, the present utility model will be described in more detail based on the embodiments and with reference to the accompanying drawings. Among them:

[0020] Figure 1 shows a schematic structural diagram of the self-propelled articulated boom aerial work platform provided by the embodiment of the present utility model;

[0021] Figure 2 shows a schematic structural diagram of the walking chassis of the self-propelled articulated boom aerial work platform provided by the embodiment of the present utility model;

[0022] Figure 3 shows a schematic structural diagram of the folding boom of the self-propelled articulated boom aerial work platform provided by the embodiment of the present utility model;

[0023] Figure 4 shows a schematic structural diagram of the work platform of the self-propelled articulated boom aerial work platform provided by the embodiment of the present utility model;

[0024] Figure 5Shows the front view of the working platform of the self-propelled articulated boom aerial work platform provided by the embodiment of the present utility model.

[0025] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0026] Description of reference numerals:

[0027] 100 - Self-propelled articulated boom aerial work platform, 110 - Traveling chassis, 111 - Boom connecting plate, 112 - Lifting drive member, 113 - Vehicle body, 114 - Universal wheel, 115 - Driving wheel, 116 - Driving mechanism, 117 - Power control mechanism, 118 - First buffer pad, 120 - Folding boom, 121 - Central connection block, 122 - First support rod, 123 - First connecting rod, 124 - Second support rod, 125 - Second connecting rod, 126 - First connecting bar, 127 - Second connecting bar, 130 - Working platform, 131 - Platform connecting plate, 132 - Second buffer pad, 133 - Platform support plate, 134 - Guardrail, 135 - Guardrail door, 136 - Lifting controller, 137 - Traveling controller, 138 - Ladder. Detailed description of the specific implementation

[0028] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model 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, and thus should not be construed as a limitation of the present utility model.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0031] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The present utility model will be further described below in conjunction with the accompanying drawings.

[0034] The embodiment of the present utility model provides a self-propelled articulated boom aerial work platform 100, which has the advantages of a relatively long boom length, resulting in a relatively large working range.

[0035] Please refer to Figure 1 、 Figure 2 and Figure 3, the self-propelled articulated boom aerial work platform 100 provided by the embodiment of the present utility model, the self-propelled articulated boom aerial work platform 100 includes a traveling chassis 110, a folding boom 120 and a work platform 130. An arm connecting plate 111 is provided on the traveling chassis 110. The folding boom 120 includes a central connecting block 121. A first support rod 122 and a first connecting rod 123 are hinged to the lower side of the central connecting block 121. The first support rod 122 and the first connecting rod 123 are arranged in parallel and have the same length. Both the first support rod 122 and the first connecting rod 123 are hinged to the arm connecting plate 111. A lifting driving member 112 is hinged to the traveling chassis 110. The lifting driving member 112 is hinged to the first support rod 122. The lifting driving member 112 can drive the first support rod 122 to rotate. A platform connecting plate 131 is provided on the work platform 130. A second support rod 124 and a second connecting rod 125 are hinged to the upper side of the central connecting block 121. The second support rod 124 and the second connecting rod 125 are arranged in parallel and have the same length. Both the second support rod 124 and the second connecting rod 125 are hinged to the platform connecting plate 131. A connecting rod mechanism is hinged to the first support rod 122. The connecting rod mechanism is hinged to the second support rod 124. The first support rod 122 can drive the second support rod 124 to rotate in the opposite direction through the connecting rod mechanism.

[0036] When it is necessary to raise the work platform 130, the lifting driving member 112 extends to drive the first support rod 122 to rotate. Since the first support rod 122 and the first connecting rod 123 are arranged in parallel and have the same length, the first support rod 122, the first connecting rod 123, the arm connecting plate 111 and the central connecting block 121 form a parallelogram mechanism. The rotation of the first support rod 122 will drive the first connecting rod 123 to rotate synchronously. And since the first support rod 122 drives the second support rod 124 to rotate in the opposite direction through the connecting rod mechanism. Since the second support rod 124 and the second connecting rod 125 are arranged in parallel and have the same length, the second support rod 124, the second connecting rod 125, the central connecting block 121 and the platform connecting plate 131 form a parallelogram mechanism. The rotation of the second support rod 124 will drive the second connecting rod 125 to rotate synchronously, so that the work platform 130 rises horizontally. The central connecting block 121 rises relative to the traveling chassis 110, and at the same time the work platform 130 rises synchronously relative to the central connecting block 121. Compared with the structure of a single articulated boom, the self-propelled articulated boom aerial work platform 100 provided by the embodiment of the present utility model has the advantages of a longer boom length and a larger working range.

[0037] For the self-propelled articulated boom aerial work platform 100 provided by the embodiment of the present utility model, further, please specifically refer to Figure 2 and Figure 3, the connecting rod mechanism includes a first connecting rod 126. A second connecting rod 127 is hinged to the second support rod 124, and the first connecting rod 126 and the second connecting rod 127 are hinged. In this embodiment, the walking chassis 110 includes a vehicle body 113. Universal wheels 114 are installed on both sides of the front end of the vehicle body 113, and drive wheels 115 are installed on both sides of the rear end of the vehicle body 113. A drive mechanism 116 is installed on the vehicle body 113, and the drive mechanism 116 is used to control the rotation of the two drive wheels 115 respectively. When the two drive wheels 115 at the rear end rotate differentially, the two universal wheels 114 at the front end will be driven by the drive wheels 115 to achieve steering.

[0038] The self-propelled articulated boom aerial work platform 100 provided by the embodiment of the present invention. Further, please specifically refer to Figure 2 and Figure 3 , a power control mechanism 117 is installed on the vehicle body 113, and the power control mechanism 117 is used to control the telescopic movement of the lifting drive member 112. A first buffer pad 118 is also provided on the upper surface of the vehicle body 113, and the central connection block 121 can be placed on the vehicle body 113 through the first buffer pad 118; a second buffer pad 132 is provided on the lower surface of the work platform 130. Please refer to Figure 4 and Figure 5 , the work platform 130 can be placed on the central connection block 121 through the second buffer pad 132. When the work platform 130 needs to descend, the lifting drive member 112 contracts to cause the first support rod 122 to rotate in the reverse direction. The central connection block 121 is placed on the vehicle body 113 through the first buffer pad 118 to avoid the impact damage of the central connection block 121 to the vehicle body 113. The work platform 130 is placed on the central connection block 121 through the second buffer pad 132 to avoid the impact damage of the central connection block 121 to the work platform 130.

[0039] The self-propelled articulated boom aerial work platform 100 provided by the embodiment of the present invention. Further, please refer to Figure 4 and Figure 5 , the work platform 130 includes a platform support plate 133. Guardrails 134 are provided at the four peripheral edges of the platform support plate 133, and a guardrail door 135 is provided on the guardrails 134. In this embodiment, the guardrail door 135 is a horizontal cross bar. The two ends of the horizontal cross bar are respectively sleeved on the vertical rods of the guardrails 134 and can slide up and down relative to the vertical rods of the guardrails 134. The horizontal cross bar can be limited to the middle cross bar of the guardrails 134. An elevation controller 136 and a travel controller 137 are provided on the platform support plate 133. The elevation controller 136 is used to control the telescopic movement of the lifting drive member 112, and the travel controller 137 is used to control the movement of the walking chassis 110. A step ladder 138 is provided on the platform support plate 133, and the staff can enter the platform support plate 133 through the step ladder 138.

[0040] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0041] Although the present utility model has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present utility model. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed, as long as they do not deviate from the spirit and scope of the present utility model as defined by the appended claims. It should be understood that the different dependent claims and the features described herein can be combined in a manner different from that described in the original claims. It should also be understood that the features described in connection with a single embodiment can be used in other described embodiments.

Claims

1. A self-propelled articulated boom aerial work vehicle, characterized in that: The self-propelled articulated boom aerial work vehicle includes a walking chassis, a folding boom and a working platform, a boom connecting plate is provided on the walking chassis, the folding boom includes a central connecting block, a first support rod and a first connecting rod are hinged on the lower side of the central connecting block, the first support rod and the first connecting rod are arranged in parallel and have equal lengths, the first support rod and the first connecting rod are both hinged to the boom connecting plate, a lifting drive member is hinged on the walking chassis, the lifting drive member is hinged to the first support rod, and the lifting drive member can drive the first support rod to rotate, a platform connecting plate is provided on the working platform, a second support rod and a second connecting rod are hinged on the upper side of the central connecting block, the second support rod and the second connecting rod are arranged in parallel and have equal lengths, the second support rod and the second connecting rod are both hinged to the platform connecting plate, a connecting rod mechanism is hinged on the first support rod, the connecting rod mechanism is hinged to the second support rod, and the first support rod can drive the second support rod to rotate in the opposite direction through the connecting rod mechanism.

2. The self-propelled articulated boom aerial work vehicle according to claim 1, characterized in that: The connecting rod mechanism comprises a first connecting rod, a second connecting rod is hingedly connected to the second supporting rod, and the first connecting rod and the second connecting rod are hingedly connected.

3. The self-propelled articulated boom aerial work vehicle according to claim 1, characterized in that: The walking chassis comprises a vehicle body, universal wheels are installed on both sides of the front end of the vehicle body, driving wheels are installed on both sides of the rear end of the vehicle body, and a driving mechanism is installed on the vehicle body, and the driving mechanism is used to control the rotation of the two driving wheels respectively.

4. The self-propelled articulated boom aerial work vehicle according to claim 3, characterized in that: A power control mechanism is installed on the vehicle body, and the power control mechanism is used to control the extension and retraction of the lifting drive member.

5. The self-propelled articulated boom aerial work vehicle according to claim 3, characterized in that: A first buffer pad is also provided on the upper surface of the vehicle body, and the central connecting block can be placed on the vehicle body through the first buffer pad; a second buffer pad is provided on the lower surface of the working platform, and the working platform can be placed on the central connecting block through the second buffer pad.

6. The self-propelled articulated boom aerial work vehicle according to claim 1, characterized in that: The working platform comprises a platform support plate, and guardrails are arranged on the edges of the platform support plate, and guardrail doors are arranged on the guardrails.

7. The self-propelled articulated boom aerial work vehicle according to claim 6, characterized in that: The guardrail door is a horizontal crossbar, both ends of which are respectively mounted on the vertical bars of the guardrail and can slide up and down relative to the vertical bars of the guardrail, and the horizontal crossbar can be limited on the middle crossbar of the guardrail.

8. The self-propelled articulated boom aerial work vehicle according to claim 6, characterized in that: The platform support plate is provided with a lifting controller and a walking controller, the lifting controller is used to control the extension and retraction of the lifting drive member, and the walking controller is used to control the movement of the walking chassis.

9. The self-propelled articulated boom aerial work vehicle according to claim 6, characterized in that: The platform support plate is provided with a step ladder, and a worker can enter the platform support plate through the step ladder.

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