A lifting multi-link mechanism

Abstract

The present invention discloses a multi-link mechanism that can be raised and lowered, including a first support base, a second support base, a slide rail, a triangular arm, a support arm, and a hydraulic cylinder, wherein the first support base, the second support base, and the slide rail are fixedly arranged on a fixed frame, the three ends of the triangular arm are respectively connected to the first support base through a first rotating shaft, connected to one end of the hydraulic cylinder through a second rotating shaft, and connected to the middle of the support arm through a third rotating shaft, the support arm can be slidably arranged in the slide rail through a slider, and the end of the hydraulic cylinder away from the second rotating shaft is connected to the second support base through a fourth rotating shaft. The present invention has the following advantages: the structural design is reasonable, the lifting device is a parallel structure, and can realize vertical lifting in a strict sense, has a large load-bearing capacity, and is easy to realize high-speed lifting through expansion.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles and special-purpose vehicles, and in particular to a liftable multi-link mechanism. Background Art

[0002] A lifting device is a kind of lifting equipment for transporting people or objects in a vertical direction. It can lift objects to a specific height. It is widely used in the maintenance of electrical equipment, stations and docks, shopping malls, stage layouts, and production lines. Lifting mechanisms can be divided into scissor-type, gear rack type, wire rope type, chain type, etc. The most widely used lifting mechanism developed by existing technology is the scissor-type lifting device, which cannot achieve vertical lifting in a strict sense. How to provide a multi-link mechanism that can achieve vertical lifting in a strict sense has become a research direction. Summary of the invention

[0003] The purpose of the present invention is to solve the problems existing in the background technology and provide a liftable multi-link mechanism.

[0004] To solve the above technical problems, the technical solution provided by the present invention is: a liftable multi-link mechanism, comprising a first support base, a second support base, a slide rail, a triangular arm, a support arm, and a hydraulic cylinder, wherein the first support base, the second support base, and the slide rail are fixedly arranged on a fixed frame, the three ends of the triangular arm are respectively connected to the first support base through a first rotating shaft, connected to one end of the hydraulic cylinder through a second rotating shaft, and connected to the middle part of the support arm through a third rotating shaft, the support arm can be slidably arranged in the slide rail through a slider, and the end of the hydraulic cylinder away from the second rotating shaft is connected to the second support base through a fourth rotating shaft.

[0005] As a preferred solution, the triangular arm, support arm, slider, and hydraulic cylinder are installed together with a first rotating shaft, a second rotating shaft, a third rotating shaft, and a fourth rotating shaft to form a liftable connecting rod mechanism. The hydraulic cylinder is driven by a hydraulic system to achieve bidirectional drive to realize the lifting function, so that the support arm is raised or lowered away from the end of the slider.

[0006] The present invention has the following advantages: reasonable structural design, the lifting device is a parallel structure, can realize vertical lifting in a strict sense, has a large carrying capacity, and can easily realize high-speed lifting through expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a front structural schematic diagram of the present invention.

[0008] Figure 2 It is a schematic diagram of the back structure of the present invention.

[0009] Figure 3 It is a three-dimensional structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0010] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0011] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0012] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected", or "installed" on another feature, it may be directly set, fixed, or connected to the other feature, or it may be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than", or "exceeds" is involved, it should be understood as not including the number itself, and if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0013] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings.

[0014] The preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0015] Example 1

[0016] In conjunction with the accompanying drawings, a liftable multi-link mechanism includes a first support base 1, a second support base 2, a slide rail 3, a triangular arm 4, a support arm 5, and a hydraulic cylinder 7, wherein the first support base 1, the second support base 2, and the slide rail 3 are fixedly arranged on a fixed frame, the three ends of the triangular arm 4 are respectively connected to the first support base 1 through a first rotating shaft 8, are connected to one end of the hydraulic cylinder 7 through a second rotating shaft 9, and are connected to the middle part of the support arm 5 through a third rotating shaft 10, the support arm 5 can be slidably arranged in the slide rail 3 through a slider 6, and the end of the hydraulic cylinder 7 away from the second rotating shaft 9 is connected to the second support base 2 through a fourth rotating shaft 11.

[0017] As a preferred implementation scheme of this embodiment, the first support base 1, the second support base 2, and the slide rail 3 are fixedly welded on the fixing frame.

[0018] As a preferred implementation scheme of this embodiment, the triangular arm 4, support arm 5, slider 6, and hydraulic cylinder 7 are installed together with a first rotating shaft 8, a second rotating shaft 9, a third rotating shaft 10, and a fourth rotating shaft 11 to form a liftable connecting rod mechanism. The hydraulic cylinder is driven by the hydraulic system to achieve bidirectional drive, thereby realizing the lifting function, so that the support arm 5 is raised or lowered away from the end of the slider 6.

[0019] As a preferred implementation scheme of this embodiment, the end of the support arm 5 away from the slider 6 is vertically lifted.

[0020] Example 2

[0021] In conjunction with the accompanying drawings, a liftable multi-link mechanism includes a first support base 1, a second support base 2, a slide rail 3, a triangular arm 4, a support arm 5, and a hydraulic cylinder 7, wherein the first support base 1, the second support base 2, and the slide rail 3 are fixedly arranged on a fixed frame, the three ends of the triangular arm 4 are respectively connected to the first support base 1 through a first rotating shaft 8, are connected to one end of the hydraulic cylinder 7 through a second rotating shaft 9, and are connected to the middle part of the support arm 5 through a third rotating shaft 10, the support arm 5 can be slidably arranged in the slide rail 3 through a slider 6, and the end of the hydraulic cylinder 7 away from the second rotating shaft 9 is connected to the second support base 2 through a fourth rotating shaft 11.

[0022] As a preferred implementation scheme of this embodiment, the first support base 1, the second support base 2, and the slide rail 3 are fixedly installed on a fixing frame.

[0023] As a preferred implementation scheme of this embodiment, the triangular arm 4, support arm 5, slider 6, and hydraulic cylinder 7 are installed together with a first rotating shaft 8, a second rotating shaft 9, a third rotating shaft 10, and a fourth rotating shaft 11 to form a liftable connecting rod mechanism. The hydraulic cylinder is driven by the hydraulic system to achieve bidirectional drive, thereby realizing the lifting function, so that the support arm 5 is raised or lowered away from the end of the slider 6.

[0024] As a preferred implementation scheme of this embodiment, the end of the support arm 5 away from the slider 6 is vertically lifted.

[0025] In the specific implementation of the present invention, multiple systems can be used as needed, and the free end of the support arm (the other end away from the slider) is installed together with the equipment or object to be lifted, and then the hydraulic system synchronously drives the hydraulic cylinder to achieve the lifting of the equipment or object. On the rear frame of a truck, 3 to 4 of the lifting mechanisms can be installed to achieve the lifting of the cargo compartment or related equipment, and the lifting height range can be 0 to 1.5 meters.

[0026] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above-described embodiments only express several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, several variations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A multi-link mechanism capable of lifting and lowering, characterized in that: The invention comprises a first supporting base (1), a second supporting base (2), a slide rail (3), a triangular arm (4), a supporting arm (5), and a hydraulic cylinder (7), wherein the first supporting base (1), the second supporting base (2), and the slide rail (3) are fixedly arranged on a fixed frame, three ends of the triangular arm (4) are respectively connected to the first supporting base (1) through a first rotating shaft (8), connected to one end of the hydraulic cylinder (7) through a second rotating shaft (9), and connected to the middle part of the supporting arm (5) through a third rotating shaft (10), the supporting arm (5) is slidably arranged in the slide rail (3) through a slider (6), and one end of the hydraulic cylinder (7) away from the second rotating shaft (9) is connected to the second supporting base (2) through a fourth rotating shaft (11); and one end of the supporting arm (5) away from the slider (6) is vertically lifted.

2. The liftable multi-link mechanism according to claim 1, characterized in that: The first support base (1), the second support base (2) and the slide rail (3) are fixedly welded on the fixing frame.

3. The liftable multi-link mechanism according to claim 1, characterized in that: The triangular arm (4), the support arm (5), the slide block (6), and the hydraulic cylinder (7) are installed together using a first rotating shaft (8), a second rotating shaft (9), a third rotating shaft (10), and a fourth rotating shaft (11) to form a lifting link mechanism. The hydraulic system drives the hydraulic cylinder to realize bidirectional driving, thereby realizing a lifting function, so that the end of the support arm (5) away from the slide block (6) is raised or lowered.

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