Auxiliary lifting device of crane

Abstract

The utility model discloses an auxiliary lifting device for a crane, which comprises a bottom plate, universal wheels with brakes are fixedly connected to the bottom of the bottom plate close to four corners, a bottom frame is fixedly connected to the top of the bottom plate, a lifting platform is arranged at the top of the bottom frame, a first connecting plate and a second connecting plate are arranged between the bottom frame and the lifting platform, and the first connecting plate and the second connecting plate are fixedly connected with the bottom plate. The auxiliary lifting device of the crane is characterized in that a second connecting plate is arranged in the inner cavity of the bottom frame, first connecting rods are fixedly connected to the front side and the rear side of the second connecting plate, second connecting rods are arranged on the sides, close to the second connecting plate, of the first connecting rods, and the first connecting plate is fixedly connected to the inner cavity of the bottom frame. And through the arrangement of the movable baffle and the rectangular groove, the device can be used as a climbing ladder, people do not need to climb to the lifting table or go down from the lifting table through external tools, the movable baffle of the device moves up and down in the inner cavity of the open groove, the stability is high, and unnecessary potential safety hazards are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance auxiliary devices, in particular to an auxiliary lifting device for a crane. Background Art

[0002] With the continuous development of the construction industry and the increasing number of high-rise buildings in major cities, the use of cranes has become increasingly widespread. However, cranes are prone to accidents due to their high center of gravity, heavy workloads, poor stability, and frequent relocation of workstations. Therefore, to ensure the safe and reliable operation of cranes, it is necessary to inspect and repair the crane's torque control equipment. Because some equipment is relatively high, auxiliary lifting devices are required to facilitate maintenance.

[0003] However, when the existing auxiliary lifting device is in use, the minimum height of the lifting platform is still relatively high. Workers need to use external tools such as ladders or stools to climb onto the lifting platform, and then lift it to a specified height for inspection. This way of climbing onto the lifting platform is inconvenient, and the ladder or stool is likely to shake, posing a safety hazard. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a crane auxiliary lifting device.

[0005] One of the purposes of this utility model is achieved by the following technical solution:

[0006] The lifting mechanism is a pair of fixedly mounted on two ends of the lifting platform, and the fixing portion includes the at least one movable frame, the at least one movable frame being connected to the bottom of the lifting platform and the fixing portion being coupled to the lifting mechanism.

[0007] Furthermore, the four universal wheels with brakes are arranged in a rectangular array, a fixing frame is fixedly connected to the top of the base plate near the left side, and two handles are fixedly connected to the left side of the fixing frame.

[0008] Furthermore, a movable shaft is provided between the adjacent first and second connecting rods, and the adjacent first and second connecting rods are movably connected through the movable shaft. Both ends of the first and second connecting rods are provided with rotating shafts. The right end of the first connecting rod is movably connected to the bottom of the lifting platform through the rotating shaft, and the right end of the second connecting rod is movably connected to the top of the bottom frame through the rotating shaft. Two sliding grooves are provided on the left side of the bottom frame and the bottom of the lifting platform, and the left ends of the first and second connecting rods are movably connected to the adjacent sliding groove cavities through the rotating shaft.

[0009] Furthermore, a control box is provided on the inner side of the guardrail, and the control box is electrically connected to the first electric telescopic rod and the second electric telescopic rod respectively.

[0010] Furthermore, the first connecting rod and the second connecting rod are both arranged at an angle.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model discloses an auxiliary lifting device for a crane. The movable baffle can be used for protective work and can also be used as a climbing ladder, killing two birds with one stone. Through the arrangement of the movable baffle and the rectangular groove, it can be used as a climbing ladder, and there is no need to use external tools to climb onto the lifting platform or get off the lifting platform. The movable baffle of the device moves up and down in the slotted inner cavity, has high stability, and avoids unnecessary safety hazards.

[0013] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In addition, in order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front perspective view of the utility model;

[0015] Figure 2 This is a right side perspective view of the present invention;

[0016] Figure 3 This is a front view cutaway perspective diagram of the present invention;

[0017] Figure 4 It is a right side perspective view of the guardrail component of the utility model;

[0018] Figure 5 This is a front perspective view of the movable baffle component of the utility model.

[0019] Numbers in the figure: 1. Base plate; 2. Universal wheel with brake; 3. Fixed frame; 4. Handle; 5. Bottom frame; 6. Lifting platform; 7. First electric telescopic rod; 8. First connecting plate; 9. Second connecting plate; 10. First connecting rod; 11. Second connecting rod; 12. Slide; 13. Guardrail; 14. Control box; 15. Movable baffle; 16. Rectangular groove; 17. Second electric telescopic rod; 18. Fixed plate; 19. Slot. DETAILED DESCRIPTION

[0020] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] See also Figure 1-5The utility model provides a technical solution: a crane auxiliary lifting device, including a base plate 1, the bottom of the base plate 1 is fixedly connected to a universal wheel 2 with a brake near the four corners, the four universal wheels 2 with brakes are arranged in a rectangular array, the top of the base plate 1 is fixedly connected to a fixing frame 3 near the left side, the left side of the fixing frame 3 is fixedly connected to two handles 4, the top of the base plate 1 is fixedly connected to a bottom frame 5, the top of the bottom frame 5 is provided with a lifting platform 6, a first connecting plate 8 and a second connecting plate 9 are provided between the bottom frame 5 and the lifting platform 6, the front and rear sides of the second connecting plate 9 are fixedly connected to a first connecting rod 10, the first connecting rod 10 is close to the second connecting plate 9 A second connecting rod 11 is provided on one side, a movable shaft is provided between the adjacent first connecting rod 10 and the second connecting rod 11, and the adjacent first connecting rod 10 and the second connecting rod 11 are movably connected through the movable shaft, and a rotating shaft is provided at both ends of the first connecting rod 10 and the second connecting rod 11. The right end of the first connecting rod 10 is movably connected to the bottom of the lifting platform 6 through the rotating shaft, and the right end of the second connecting rod 11 is movably connected to the top of the bottom frame 5 through the rotating shaft. Two sliding grooves 12 are provided on the left side of the bottom frame 5 and the bottom of the lifting platform 6. The left ends of the first connecting rod 10 and the second connecting rod 11 are movably connected to the inner cavities of the adjacent sliding grooves 12 through the rotating shaft, and the first connecting rod 10 and the second connecting rod 11 are both inclined.

[0024] The first connecting plate 8 is fixedly connected to the inner cavity of the bottom frame 5, and the first connecting plate 8 is hingedly connected to the top of the first connecting plate 8. The top of the first electric telescopic rod 7 is hinged to the second connecting plate 9. The top of the lifting platform 6 is fixedly connected to the guardrail 13, and a movable baffle 15 is provided on the right side of the guardrail 13. A slot 19 is provided on the lifting platform 6 near the right side, and the movable baffle 15 moves through the slot 19. A number of rectangular slots 16 are provided on the movable baffle 15. A fixed plate 18 is fixedly connected to the left side of the movable baffle 15 near the bottom, and the top of the fixed plate 18 is fixedly connected to the second electric telescopic rod 17. The second electric telescopic rod 17 is fixedly connected to the bottom of the lifting platform 6. A control box 14 is provided on the inner side of the guardrail 13, and the control box 14 is electrically connected to the first electric telescopic rod 7 and the second electric telescopic rod 17 respectively.

[0025] Working principle: The utility model is a crane auxiliary lifting device. During use, when the previous maintenance work is completed and the worker gets off the lifting platform 6, the control box 14 controls the second electric telescopic rod 17 to extend, and the second electric telescopic rod 17 drives the fixed plate 18 and the movable baffle 15 to move downward. The movable baffle 15 moves in the inner cavity of the slot 19. When the top of the movable baffle 15 is flush with the top of the lifting platform 6, the second electric telescopic rod 17 stops working. At this time, the movable baffle 15 and the rectangular slot 16 become a climbing ladder, and then the worker steps on the inner cavity of the rectangular slot 16 to climb down;

[0026] The movable baffle 15 of the device moves up and down in the inner cavity of the slot 19, and has high stability and avoids unnecessary safety hazards.

[0027] Then, the control box 14 is used to control the first electric telescopic rod 7 to extend, thereby realizing the lifting and lowering of the lifting platform 6, so as to carry out maintenance work.

[0028] 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", "axial", "radial", "circumferential" and the like to 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, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. 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 any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0033] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A crane auxiliary lifting device, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is fixedly connected to universal wheels (2) with brakes near the four corners, the top of the base plate (1) is fixedly connected to a base frame (5), a lifting platform (6) is provided on the top of the base frame (5), a first connecting plate (8) and a second connecting plate (9) are provided between the base frame (5) and the lifting platform (6), the front and rear sides of the second connecting plate (9) are fixedly connected to a first connecting rod (10), a side of the first connecting rod (10) close to the second connecting plate (9) is provided with a second connecting rod (11), the first connecting plate (8) is fixedly connected to the inner cavity of the base frame (5), the top of the first connecting plate (8) is hinged to a first electric telescopic rod (7), the first electric The top of the movable telescopic rod (7) is hinged to the second connecting plate (9); the top of the lifting platform (6) is fixedly connected to a guardrail (13); a movable baffle (15) is provided on the right side of the guardrail (13); a slot (19) is provided on the lifting platform (6) near the right side; the movable baffle (15) movably passes through the slot (19); a plurality of rectangular slots (16) are provided on the movable baffle (15); a fixed plate (18) is fixedly connected to the left side of the movable baffle (15) near the bottom; the top of the fixed plate (18) is fixedly connected to a second electric telescopic rod (17); and the second electric telescopic rod (17) is fixedly connected to the bottom of the lifting platform (6).

2. The crane auxiliary lifting device according to claim 1, characterized in that: The four universal wheels (2) with brakes are arranged in a rectangular array. A fixing frame (3) is fixedly connected to the top of the base plate (1) near the left side, and two handles (4) are fixedly connected to the left side of the fixing frame (3).

3. The crane auxiliary lifting device according to claim 1, characterized in that: A movable shaft is provided between the adjacent first connecting rods (10) and second connecting rods (11), and the adjacent first connecting rods (10) and second connecting rods (11) are movably connected through the movable shaft. A rotating shaft is provided at both ends of the first connecting rod (10) and the second connecting rod (11). The right end of the first connecting rod (10) is movably connected to the bottom of the lifting platform (6) through the rotating shaft, and the right end of the second connecting rod (11) is movably connected to the top of the bottom frame (5) through the rotating shaft. Two sliding grooves (12) are provided on the left side of the bottom frame (5) and the bottom of the lifting platform (6). The left ends of the first connecting rod (10) and the second connecting rod (11) are movably connected to the inner cavity of the adjacent sliding groove (12) through the rotating shaft.

4. The crane auxiliary lifting device according to claim 1, characterized in that: A control box (14) is provided on the inner side of the guardrail (13), and the control box (14) is electrically connected to the first electric telescopic rod (7) and the second electric telescopic rod (17) respectively.

5. The crane auxiliary lifting device according to claim 1, characterized in that: The first connecting rod (10) and the second connecting rod (11) are both arranged at an inclination.

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