Crawling ladder aerial work platform

Abstract

The utility model provides a crawling ladder aerial work platform, and relates to the technical field of aerial work equipment. The crawling ladder aerial work platform comprises a walking chassis, a lifting support and a work platform, the work platform is installed on the lifting support, a supporting frame is hinged to the walking chassis, a pitching driving mechanism is hinged to the walking chassis and used for adjusting the pitching angle of the supporting frame, and the lifting support is installed on the supporting frame. A first telescopic supporting leg mechanism and a second telescopic supporting leg mechanism are installed at the two opposite ends of the supporting frame correspondingly, and the first telescopic supporting leg mechanism and the second telescopic supporting leg mechanism can be supported on a working face through stretching and retracting. Based on the technical scheme, the crawling ladder aerial work platform can work on inclined working faces such as stairs.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial work equipment, in particular to a ladder aerial work platform. Background Technique

[0002] An aerial work platform is an important device that can be movably used for aerial equipment installation, aerial maintenance and other aerial work in various industries. An aerial work platform generally consists of a base, a lifting mechanism, and a working platform. During operation, the lifting mechanism lifts the working platform to the working height for operation.

[0003] Existing aerial work platforms can work on horizontal work surfaces. For example, the scissor-type aerial work platform disclosed in CN117509493A cannot work on inclined work surfaces such as stairs. Therefore, it is necessary to design a ladder aerial work platform that can work on inclined work surfaces such as stairs. Content of the Utility Model

[0004] In view of the above problems in the prior art, the present application proposes a ladder aerial work platform that can work on inclined work surfaces such as stairs.

[0005] The utility model provides a ladder aerial work platform, which includes a walking chassis, a lifting bracket, and a working platform. The working platform is installed on the lifting bracket. A support frame is hinged on the walking chassis, and a pitching drive mechanism is hinged on the walking chassis. The pitching drive mechanism is used to adjust the pitching angle of the support frame. The lifting bracket is installed on the support frame. The first telescopic leg mechanism and the second telescopic leg mechanism are respectively installed at opposite ends of the support frame. Both the first telescopic leg mechanism and the second telescopic leg mechanism can support on the working surface by telescoping.

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

[0007] In the above-mentioned ladder aerial work platform, further, mounting sleeves are provided at opposite ends of the support frame, and connecting pipes are provided on both the first telescopic leg mechanism and the second telescopic leg mechanism. The connecting pipes can be inserted into the mounting sleeves and can move relative to the mounting sleeves.

[0008] In the above-mentioned ladder aerial work platform, further, a horizontal inclination sensor is installed on the support frame. The horizontal inclination sensor is used to detect the horizontal inclination angle of the support frame and control the pitching drive mechanism, the first telescopic leg mechanism, and the second telescopic leg mechanism to telescope so that the support frame is in a horizontal state.

[0009] For the above-mentioned ladder-type aerial work platform, further, support pads are provided on the traveling chassis. When the traveling chassis travels and operates on a horizontal working surface, the support frame is supported and placed on the support pads.

[0010] For the above-mentioned ladder-type aerial work platform, further, a step ladder is provided on the traveling chassis, and operators can enter the work platform through the step ladder.

[0011] For the above-mentioned ladder-type aerial work platform, further, the traveling chassis is a crawler-type traveling chassis.

[0012] For the above-mentioned ladder-type aerial work platform, further, the lifting support frame includes a scissor lift and a lifting telescopic driving member, and the lifting telescopic driving member can drive the scissor lift to lift and lower.

[0013] For the above-mentioned ladder-type aerial work platform, further, the work platform includes a platform support plate, guardrails are provided at the four peripheral edges of the platform support plate, and a guardrail door is provided on the guardrails.

[0014] For the above-mentioned ladder-type aerial work platform, further, the guardrail door is a horizontal cross bar, the two 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 to the middle cross bar of the guardrail.

[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] Compared with the prior art, the ladder-type aerial work platform provided by the present utility model at least has the following beneficial effects: When it is necessary to operate on an inclined working surface such as a staircase, first, the pitching drive mechanism telescopically adjusts the pitching angle of the support frame so that the support frame is in a horizontal position, then the first telescopic leg mechanism and the second telescopic leg mechanism respectively extend and retract to support on the inclined working surface, and finally the operator enters the work platform, and the lifting support frame drives the work platform to rise to a preset working height for operation. This ladder-type aerial work platform can operate on inclined working surfaces such as staircases.

[0017] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given below and described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related 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 drawings. Among them:

[0020] Figure 1 shows a schematic structural diagram of a ladder-type aerial work platform provided by an embodiment of the present utility model;

[0021] Figure 2 shows a schematic structural diagram of a walking chassis of a ladder-type aerial work platform provided by an embodiment of the present utility model;

[0022] Figure 3 shows a front view of a walking chassis of a ladder-type aerial work platform provided by an embodiment of the present utility model;

[0023] Figure 4 shows an operation schematic diagram of a ladder-type aerial work platform provided by an embodiment of the present utility model.

[0024] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0025] Description of reference numerals:

[0026] 100 - ladder-type aerial work platform, 110 - walking chassis, 111 - support frame, 112 - pitching drive mechanism, 113 - first telescopic outrigger mechanism, 114 - second telescopic outrigger mechanism, 115 - mounting sleeve, 116 - connecting pipe, 117 - horizontal inclination sensor, 118 - support pad, 119 - step ladder, 120 - lifting bracket, 121 - scissor lift, 122 - lifting telescopic drive member, 130 - work platform, 131 - platform support plate, 132 - guardrail, 133 - guardrail door. Detailed implementation manners

[0027] The following will describe in detail the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation to the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood 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 of" means two or more unless otherwise specifically defined.

[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. 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.

[0031] 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 indirectly in 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 has a higher horizontal height 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 has a lower horizontal height than the second feature.

[0032] The present utility model will be further described below with reference to the drawings.

[0033] The embodiment of the present utility model provides a ladder aerial work platform 100, which can work on inclined working surfaces such as stairs.

[0034] Please refer to Figure 1 and Figure 2, the aerial work platform 100 with a ladder provided by the embodiment of the present utility model, the aerial work platform 100 with a ladder includes a walking chassis 110, a lifting bracket 120 and a work platform 130. The work platform 130 is installed on the lifting bracket 120. A support frame 111 is hinged on the walking chassis 110, and a pitching drive mechanism 112 is hinged on the walking chassis 110. The pitching drive mechanism 112 is used to adjust the pitching angle of the support frame 111. The lifting bracket 120 is installed on the support frame 111. The first telescopic leg mechanism 113 and the second telescopic leg mechanism 114 are respectively installed at the opposite ends of the support frame 111. Both the first telescopic leg mechanism 113 and the second telescopic leg mechanism 114 can support on the working surface by telescoping.

[0035] Please refer to Figure 4 , when it is necessary to work on an inclined working surface such as a staircase, first, the pitching drive mechanism 112 is telescoped to adjust the pitching angle of the support frame 111 so that the support frame 111 is in a horizontal position. Then, the first telescopic leg mechanism 113 and the second telescopic leg mechanism 114 are respectively telescoped to support on the inclined working surface. Finally, the operator enters the work platform 130, and the lifting bracket 120 drives the work platform 130 to rise to the preset working height for work. The aerial work platform 100 with a ladder provided by the embodiment of the present utility model can work on an inclined working surface such as a staircase.

[0036] For the aerial work platform 100 with a ladder provided by the embodiment of the present utility model, further, please refer to Figure 2 and Figure 3 , mounting sleeves 115 are provided at the opposite ends of the support frame 111, and connecting pipes 116 are provided on both the first telescopic leg mechanism 113 and the second telescopic leg mechanism 114. The connecting pipes 116 can be inserted into the mounting sleeves 115 and can move relative to the mounting sleeves 115. This structure can enable the first telescopic leg mechanism 113 and the second telescopic leg mechanism 114 to move horizontally relative to the support frame 111, increase the horizontal distance between the first telescopic leg mechanism 113 and the second telescopic leg mechanism 114 relative to the support frame 111, enhance the stability of the whole vehicle, and provide safety guarantee for aerial work.

[0037] For the aerial work platform 100 with a ladder provided by the embodiment of the present utility model, further, please refer to Figure 2 and Figure 3, a horizontal inclination sensor 117 is installed on the support frame 111. The horizontal inclination sensor 117 is used to detect the horizontal inclination angle of the support frame 111 and control the telescopic movement of the pitching drive mechanism 112, the first telescopic leg mechanism 113 and the second telescopic leg mechanism 114 so that the support frame 111 is in a horizontal state. When the walking chassis 110 travels on an inclined working surface such as a staircase, the horizontal inclination sensor 117 detects the horizontal inclination angle of the support frame 111 in real time and controls the telescopic movement of the pitching drive mechanism 112, the first telescopic leg mechanism 113 and the second telescopic leg mechanism 114 so that the support frame 111 is in a horizontal state.

[0038] For the ladder-type aerial work platform 100 provided by the embodiment of the present invention, further, please refer to Figure 2 and Figure 3 , a support cushion block 118 is provided on the walking chassis 110. When the walking chassis 110 travels and operates on a horizontal working surface, the support frame 111 is supported and placed on the support cushion block 118 to prevent the support frame 111 from falling, and at the same time bear the weight of the upper installation, share the load for the pitching drive mechanism 112, so that the pitching drive mechanism 112 does not need to bear force when operating on a horizontal ground, thereby prolonging the service life of the pitching drive mechanism 112. A step ladder 119 is provided on the walking chassis 110, and the operator can enter the work platform 130 through the step ladder 119. In this embodiment, the walking chassis 110 is a crawler-type walking chassis 110.

[0039] For the ladder-type aerial work platform 100 provided by the embodiment of the present invention, further, please refer to Figure 1 , the lifting bracket 120 includes a scissor lift 121 and a lifting telescopic drive member 122. The lifting telescopic drive member 122 can drive the scissor lift 121 to lift. The work platform 130 includes a platform support plate 131. Guardrails 132 are provided at the four peripheral edges of the platform support plate 131, and a guardrail door 133 is provided on the guardrails 132. In this embodiment, the guardrail door 133 is a horizontal cross bar. The two ends of the horizontal cross bar are respectively sleeved on the vertical bars of the guardrail 132 and can slide up and down relative to the vertical bars of the guardrail 132. The horizontal cross bar can be limited to the middle cross bar of the guardrail 132.

[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 ladder aerial work platform, characterized in that: The ladder aerial work platform includes a walking chassis, a lifting bracket and a work platform, the work platform is installed on the lifting bracket, a support frame is hinged on the walking chassis, a pitch drive mechanism is hinged on the walking chassis, the pitch drive mechanism is used to adjust the pitch angle of the support frame, the lifting bracket is installed on the support frame, and a first telescopic leg mechanism and a second telescopic leg mechanism are respectively installed at opposite ends of the support frame, and the first telescopic leg mechanism and the second telescopic leg mechanism can be supported on a work surface by extension and retraction.

2. The ladder aerial work platform according to claim 1, characterized in that: The supporting frame is provided with mounting sleeves at opposite ends thereof, and the first telescopic leg mechanism and the second telescopic leg mechanism are provided with connecting pipes, which can be inserted into the mounting sleeves and can move relative to the mounting sleeves.

3. The ladder aerial work platform according to claim 1, characterized in that: A horizontal inclination sensor is installed on the support frame, and the horizontal inclination sensor is used to detect the horizontal inclination of the support frame and control the pitch drive mechanism, the first telescopic leg mechanism and the second telescopic leg mechanism to extend and retract so that the support frame is in a horizontal state.

4. The ladder aerial work platform according to claim 1, characterized in that: A supporting pad is provided on the traveling chassis. When the traveling chassis is traveling on a horizontal working surface, the supporting frame is supported and placed on the supporting pad.

5. The ladder aerial work platform according to claim 1, characterized in that: A staircase is provided on the walking chassis, and an operator can enter the working platform through the staircase.

6. The ladder aerial work platform according to claim 1, characterized in that: The traveling chassis is a crawler-type traveling chassis.

7. The ladder aerial work platform according to claim 1, characterized in that: The lifting bracket includes a scissor frame and a lifting and telescopic driving component, and the lifting and telescopic driving component can drive the scissor frame to rise and fall.

8. The ladder aerial work platform 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.

9. The ladder aerial work platform according to claim 8, 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.

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