Upright column lifting structure
By adding a chain mechanism to the lifting system of the aerial working platform, the multi-section movable columns are telescopic and retracted simultaneously, the traditional lifting system has solved the problem of high requirements for hydraulic cylinder strength and thrust, improving the lifting efficiency and reducing maintenance costs.
Patent Information
- Application Number
- CN202420542623.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The traditional high-altitude working platform lifting system has high requirements for the strength and thrust of the hydraulic cylinder during the lifting and falling of the column, long lifting and falling time, and high maintenance costs.
By adding a chain mechanism, the multi-section movable columns are directly extended or retracted simultaneously, and the chain mechanism is used to connect the multi-section movable columns in sequence, so that synchronous expansion and contraction can be achieved through the column oil cylinder drive.
Improve lifting efficiency, simplify maintenance, reduce costs, and ensure the smoothness and stability of the movable column through the setting of the nylon slider.
Smart Images
Figure CN222434095U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the application field of engineering machinery technology, in particular to a column lifting structure. Background Art
[0002] Aerial work platforms are products that serve various industries for high-altitude work, equipment installation, maintenance and other mobile high-altitude work. They are also equipment that can send operators to high-altitude work. Due to the particularity of the operating environment, higher requirements are placed on the main components of the aerial work platform. As the core structure of the aerial work platform, it is more important to improve the structure and enhance the practicality of the lifting system. The traditional lifting method uses a multi-stage cylinder push structure. During the lifting and lowering process of the column, the strength and thrust of the hydraulic cylinder are higher, the lifting and lowering time is longer, and the maintenance cost is higher. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a column lifting structure, which increases a chain mechanism so that multiple sections of movable columns can be directly and synchronously extended or retracted, thereby improving the lifting efficiency.
[0004] The technical solution of the utility model is: a column lifting structure, comprising a fixed column and a multi-section movable column, the multi-section movable column is movably nested in the fixed column in sequence, a chain mechanism is arranged between every two movable columns, the chain mechanism comprises a sprocket assembly arranged at the end of one of the movable columns and a chain used in conjunction with the sprocket assembly; one end of the chain passes through the sprocket assembly and is connected to the bottom side wall of the next section of the movable column through a fixed connecting block, and the other end of the chain is connected to the end side wall of the movable column or the fixed column of the previous section through a fixed block;
[0005] A column oil cylinder is arranged in the fixed column, one end of the column oil cylinder is connected to the bottom of the fixed column, and the other end of the column oil cylinder is connected to the next movable column through a push rod welding body.
[0006] Furthermore, the movable column is provided with N sections, wherein N is a natural number greater than 2, and the N sections of the movable columns are movably nested in the fixed columns in sequence.
[0007] Furthermore, the chain mechanism is provided with N-1 groups.
[0008] Furthermore, an upper nylon slider is provided on the outer side of the movable column and the fixed column, and a lower nylon slider used in conjunction with the upper nylon slider is provided on the inner side of the movable column.
[0009] Furthermore, the upper nylon sliders are provided in four groups, and the four groups of the upper nylon sliders are arranged around the outer sides of the movable column or the fixed column; the lower nylon sliders are provided in four groups, and the four groups of the lower nylon sliders are arranged around the inner sides of the movable column.
[0010] Furthermore, an opening is provided on the surface of the movable column, and the opening passes through the interior of the movable column.
[0011] Furthermore, a threaded hole is provided on one side of the opening, and the fixed connection block is fixedly connected to the threaded hole by a bolt.
[0012] Furthermore, the openings of the multiple sections of the movable columns are staggered.
[0013] The beneficial technical effects of the utility model are:
[0014] 1. A chain mechanism is provided between the multiple movable columns, through which the multiple movable columns are connected in sequence. When the column cylinder is started, the multiple movable columns are driven in sequence through multiple chain mechanisms to achieve the purpose of synchronous extension or retraction, thereby improving the lifting efficiency.
[0015] 2. The setting of the movable column opening not only facilitates the installation of the fixed connecting block, but also facilitates the adjustment of the tightness of the chain.
[0016] 3. The setting of the upper nylon slider and the lower nylon slider not only ensures that the multi-section movable column is smoother during the extension or retraction process, but also can limit the extension stroke of the multi-section movable column through the abutment of the upper nylon slider and the lower nylon slider, thereby ensuring the stability of the movable column.
[0017] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 This is a structural schematic diagram of the chain mechanism of the utility model located on a movable column;
[0020] Figure 3 This is a schematic diagram of the structure in which the fixed connection block of the utility model is installed on the movable column;
[0021] Figure 4 It is a structural schematic diagram of the chain mechanism of the utility model.
[0022] The accompanying drawings are marked as follows:
[0023] 100, fixed column; 110, column cylinder; 120, push rod welding body; 200, movable column; 210, opening; 220, threaded hole; 230, fixed connecting block; 240, fixed block; 300, chain mechanism; 310, sprocket assembly; 320, chain. DETAILED DESCRIPTION
[0024] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.
[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.
[0026] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships recorded in the embodiments and shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0027] like Figure 1-4 As shown, the utility model specifically relates to a column lifting structure, comprising a fixed column 100 and a multi-section movable column 200, wherein the multi-section movable column 200 is sequentially movably nested in the fixed column 100, and a chain mechanism 300 is arranged between every two movable columns 200, wherein the chain mechanism 300 comprises a sprocket assembly 310 arranged at the end of one of the movable columns 200 and a chain 320 used in conjunction with the sprocket assembly 310; one end of the chain 320 passes through the sprocket assembly 310 and is connected to the bottom side wall of the next section of the movable column 200 through a fixed connecting block 230, and the other end of the chain 320 is connected to the end side wall of the movable column 200 or the fixed column 100 of the previous section through a fixed block 240;
[0028] A column cylinder 110 is disposed in the fixed column 100 , one end of the column cylinder 110 is connected to the bottom of the fixed column 100 , and the other end of the column cylinder 110 is connected to the next section of the movable column 200 through a push rod welding body 120 .
[0029] It should be noted that the multi-section movable column 200 is movably nested in the fixed column 100 in sequence. When the lifting mechanism is extended, the fixed column 100 remains unchanged, and the multi-section movable column 200 is extended relative to the fixed column 100. The multi-section movable column 200 is nested in one section and extended synchronously in sequence to achieve the purpose of extension; similarly, when the lifting mechanism is retracted, the fixed column 100 remains unchanged, and the multi-section movable column 200 is retracted relative to the fixed column 100. The multi-section movable column 200 is nested in one section and retracted synchronously in sequence to achieve the purpose of retraction.
[0030] In order to achieve the above-mentioned purpose of synchronous extension or retraction, a chain mechanism 300 is provided between multiple sections of movable columns 200, a sprocket assembly 310 in the chain mechanism 300 is provided at the end of the movable column 200, one end of the chain 320 passes through the sprocket assembly 310 and is connected to the bottom side wall of the next section of the movable column 200 through the fixed connection block 230, and the other end of the chain 320 is connected to the end side wall of the previous section of the movable column 200 or the fixed column 100 through the fixed block 240. 0 assembly connects two movable columns 200, or a movable column 200 and a fixed column 100. When the column cylinder 110 located at the fixed column 100 is started, the column cylinder 110 drives the movable column 200 nested in the fixed column 100 to move through the push rod welding body 120. The movable column 200 of this section drives the next movable column 200 to extend or retract through the chain mechanism 300. This cycle ensures that multiple movable columns 200 are extended or retracted synchronously, thereby improving the telescopic efficiency.
[0031] The movable column 200 is provided with N sections, wherein N is a natural number greater than 2, and the N sections of the movable columns 200 are movably nested in the fixed column 100 in sequence; the chain mechanism 300 is provided with N-1 groups.
[0032] It should be noted that, for example, when N is 3, it indicates that three movable columns 200 are nested outside the fixed column 100, and the three movable columns 200 are connected by two sets of chain mechanisms 300, so as to be able to drive the three movable columns 200 to extend or retract synchronously, and so on.
[0033] The outer sides of the movable column 200 and the fixed column 100 are both provided with an upper nylon slider, and the inner side of the movable column 200 is provided with a lower nylon slider used in conjunction with the upper nylon slider.
[0034] By setting up an upper nylon slider and a lower nylon slider, the smoothness and stability of the multi-section movable column 200 during the extension and retraction process are ensured. At the same time, when the lower nylon slider moves and abuts against the upper nylon slider, the upper nylon slider abuts against the lower nylon slider to limit the moving stroke of the movable column 200, thereby ensuring the stability of the equipment during use.
[0035] The upper nylon sliders are provided in four groups, and the four groups of the upper nylon sliders are arranged around the outer sides of the movable column 200 or the fixed column 100 ; the lower nylon sliders are provided in four groups, and the four groups of the lower nylon sliders are arranged around the inner sides of the movable column 200 .
[0036] The smoothness and stability of the multi-section movable column 200 during movement are ensured by providing four sets of upper nylon sliders and lower nylon sliders.
[0037] An opening 210 is formed on the surface of the movable column 200 , and the opening 210 passes through the interior of the movable column 200 .
[0038] A threaded hole 220 is disposed on one side of the opening 210 , and the fixed connection block 230 is fixedly connected to the threaded hole 220 by bolts.
[0039] The openings 210 of the plurality of movable columns 200 are staggered.
[0040] The provision of the opening 210 of the movable column 200 not only facilitates the installation of the fixed connection block 230 , but also facilitates the adjustment of the tightness of the chain 320 .
[0041] The above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solution of the present invention rather than to limit it. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the aforementioned embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the present invention, and should all be covered within the protection scope of the present invention.
Claims
1. A column lifting structure, characterized in that: It comprises a fixed column and a multi-section movable column, wherein the multi-section movable column is movably nested in the fixed column in sequence, and a chain mechanism is arranged between every two movable columns, wherein the chain mechanism comprises a sprocket assembly arranged at the end of one of the movable columns and a chain used in conjunction with the sprocket assembly; one end of the chain passes through the sprocket assembly and is connected to the bottom side wall of the next section of the movable column through a fixed connecting block, and the other end of the chain is connected to the end side wall of the movable column or the fixed column of the previous section through a fixed block; A column oil cylinder is arranged in the fixed column, one end of the column oil cylinder is connected to the bottom of the fixed column, and the other end of the column oil cylinder is connected to the next movable column through a push rod welding body.
2. The column lifting structure according to claim 1, characterized in that: The movable column is provided with N sections, wherein N is a natural number greater than 2, and the N sections of the movable columns are movably nested in the fixed column in sequence.
3. The column lifting structure according to claim 2, characterized in that: The chain mechanism is provided with N-1 groups.
4. The column lifting structure according to claim 1, characterized in that: An upper nylon slider is disposed on the outer sides of the movable column and the fixed column, and a lower nylon slider used in conjunction with the upper nylon slider is disposed on the inner side of the movable column.
5. The column lifting structure according to claim 4, characterized in that: The upper nylon sliders are provided with four groups, and the four groups of the upper nylon sliders are arranged around the outer sides of the movable column or the fixed column; the lower nylon sliders are provided with four groups, and the four groups of the lower nylon sliders are arranged around the inner sides of the movable column.
6. The column lifting structure according to claim 1, characterized in that: An opening is arranged on the surface of the movable column, and the opening passes through the interior of the movable column.
7. The column lifting structure according to claim 6, characterized in that: A threaded hole is provided on one side of the opening, and the fixed connection block is fixedly connected to the threaded hole by bolts.
8. The column lifting structure according to claim 7, characterized in that: The openings of the multiple sections of the movable columns are staggered.