Portable small material lifting device for construction site

Abstract

The utility model discloses a portable small material lifting device for a construction site, which relates to the technical field of constructional engineering, and comprises a base, the top of the base is fixedly connected with a mounting plate, the top of the mounting plate is fixedly connected with a hollow column, the top of the hollow column is provided with a lifting assembly, and the end part of the lifting assembly is provided with an extension assembly. The lifting assembly comprises a bearing, a rotating rod, a first bevel gear, a second bevel gear, a mounting sleeve, a servo motor, a rotating shaft, a bearing seat, a lifting rod and a containing box. When the device is used, the servo motor is started, the output end of the servo motor drives the rotating shaft to rotate, the rotating shaft rotates to drive the second bevel gear to rotate, the second bevel gear rotates to drive the first bevel gear to rotate, and the first bevel gear rotates synchronously to drive the rotating rod to rotate; and the lifting rod performs smooth arc-shaped swing by taking the circle center of the rotating rod as a fulcrum, so that the placing box is driven to finish the whole process of ascending, descending and angle adjustment, the use is convenient, the adaptability is strong, and the construction efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, specifically be a portable small material hoisting device for construction site. BACKGROUND

[0002] Building engineering is a comprehensive creation activity for new building, reconstruction or expansion of houses, municipal, industrial and infrastructure, covering survey, design, construction, installation, decoration and operation and maintenance, involving earthwork, concrete, steel structure, electromechanical, decoration multi-professional collaborative operation.

[0003] In the construction process of building engineering, the vertical transportation demand of small materials is frequent and scattered, especially in the stages of indoor decoration, secondary structure masonry and roof waterproof, bricks, tools and the like need to be quickly lifted to different floors or operation surfaces. The traditional tower crane, construction elevator and the like large equipment have high requirements for site and passage, are difficult to cover corner areas, manual carrying is low in efficiency and high in labor intensity, and at the same time, the existing small lifting equipment mostly adopts fixed support and manual capstan structure, the lifting height is fixed and difficult to expand, and cannot adapt to variable floor height; at the same time, the overall weight is large, and repeated disassembly and assembly are needed for scene transfer, thereby reducing construction efficiency. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem, aiming at the deficiency of the prior art, provides a portable small material hoisting device for construction site, which is convenient to use, high in adaptability and can improve construction efficiency.

[0005] The utility model adopts the technical scheme in the technical solution: a portable small material hoisting device for construction site, including the base, the top of base is connected with the mounting plate through bolt fixing, the top of mounting plate is connected with the hollow column fixedly, the top of hollow column is installed with lifting assembly, the end of lifting assembly is installed with extension assembly;

[0006] The lifting assembly includes a bearing, the inner wall of the bearing is rotatably connected with a rotating rod, the surface of the rotating rod is fixedly connected with a bevel gear one, the surface of the bevel gear one is meshedly connected with a bevel gear two, the rear end of the hollow column is fixedly connected with a mounting sleeve, the inside of the mounting sleeve is installed with a servo motor, the output end of the servo motor is fixedly connected with a rotating shaft, the surface of the rotating shaft is rotatably connected with a bearing seat, the bevel gear two is fixedly connected on the surface of the rotating shaft, the surface of the rotating rod is fixedly connected with a lifting rod, the top of the lifting rod is fixedly connected with a placing box one, the inner wall of the placing box one is inserted with a clamping plate, and the end of the lifting rod is provided with a clamping hole one.

[0007] Through the technical scheme, the base, the mounting plate and the hollow column are used to construct a stable support, power drive lifting of the built-in bevel gear pair and the servo motor in the assembly is realized, the extension assembly quickly lengthens the lifting arm through the clamping column, and the whole device completes efficient, safe and height-adjustable lifting operation of small materials in a limited space.

[0008] As a further improvement of the above scheme, the number of bearings is two, and the two bearings are distributed in a central symmetry at the top of the rotating rod.

[0009] Through the technical scheme, the two bearings are symmetrically arranged to balance the stress of the rotating rod, reduce eccentric swing, and improve the stability of the lifting process and the service life of the bearing.

[0010] As a further improvement of the above scheme, the end of the bearing seat away from the rotating shaft is fixedly connected to the inner wall of the hollow column by bolts.

[0011] Through the technical scheme, the bearing seat is bolted to the inner wall of the hollow column to form a closed force frame, thereby enhancing the overall rigidity and preventing the rotating shaft from deviating.

[0012] As a further improvement of the above scheme, the extension assembly includes a clamping column, the clamping hole one is fixedly connected with a mounting table through the clamping column, the end of the mounting table away from the clamping column is fixedly connected with an extension rod, the top of the extension rod is fixedly connected with a placing box two, and the end of the extension rod is provided with a clamping hole two.

[0013] Through the technical scheme, the clamping column-clamping hole one connects the mounting table, and the extension rod and the placing box two form a detachable lengthening arm, so that the lifting height can be expanded as needed without replacing the whole rod.

[0014] As a further improvement of the above scheme, the structure and size of the clamping hole two are the same as those of the clamping hole one.

[0015] Through the technical scheme, the clamping column can be universally exchanged, thereby simplifying spare part management and improving assembly efficiency.

[0016] As a further improvement of the above scheme, the top of the base is fixedly connected with a handrail, and the bottom of the base is provided with universal wheels at four corners.

[0017] Through the technical scheme, the combination of the handrail and the universal wheels enables the device to have a hand-pushing advancing capability, quickly move to another place and reduce the secondary handling time.

[0018] Compared with the prior art, the device has the following beneficial effects:

[0019] The utility model discloses a lifting assembly is set up, and the servo motor is started, and the output of servo motor drives rotating shaft to rotate, and the rotating shaft rotation drives bevel gear no. 2 to rotate, and bevel gear no. 2 rotation drives bevel gear no. 1 to rotate, and synchronous bevel gear no. 1 rotation drives rotating rod to rotate, and makes the lifting rod with rotating rod center of circle as fulcrum to do smooth arc swing, to drive the placing box to complete the whole process of rising, falling and angle adjustment, has convenient to use, strong adaptability, can improve construction efficiency and so on advantage;

[0020] The utility model discloses a extension assembly is set up, and the detachable extension rod is added on the lifting rod, and the length is added up by the plug -in cooperation of card column and card hole no. 1, card hole no. 2, and this structure makes device can adjust the lifting height according to floor height or construction condition, avoids the need frequent replacement equipment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is whole structure schematic diagram of the utility model;

[0022] Figure 2 It is whole top structure schematic diagram of the utility model;

[0023] Figure 3 It is whole structure schematic diagram of the utility model lifting assembly;

[0024] Figure 4 It is whole structure schematic diagram of the utility model mounting platform and lifting rod separation;

[0025] Figure 5 It is whole structure schematic diagram of the utility model placing box no. 1 and card plate separation;

[0026] Figure 6 It is whole structure schematic diagram of the utility model when loading material.

[0027] Mark explanation in drawing: 1, base plate;2, mounting plate;3, hollow column;4, lifting assembly;41, bearing;42, rotating rod;43, bevel gear no. 1;44, bevel gear no. 2;45, mounting sleeve;46, servo motor;47, rotating shaft;48, bearing seat;49, lifting rod;410, placing box no. 1;411, card plate;412, card hole no. 1;5, extension assembly;51, card column;52, mounting platform;53, extension rod;54, placing box no. 2;55, card hole no. 2;6, handrail;7, universal wheel. DETAILED DESCRIPTION

[0028] Below, the utility model is described further in combination with the drawings and examples, and it is explained that under the premise of not conflicting, the following described each embodiment or each technical feature between can be combined to form new embodiment.

[0029] Embodiment:

[0030] Please combine Figures 1-6 The embodiment provides a portable small material lifting device for a construction site, which comprises a base 1, a mounting plate 2 is fixedly connected to the top of the base 1 through bolts, a hollow column 3 is fixedly connected to the top of the mounting plate 2, a lifting assembly 4 is installed at the top of the hollow column 3, and an extension assembly 5 is installed at the end of the lifting assembly 4.

[0031] The lifting assembly 4 comprises a bearing 41, a rotating rod 42 is rotationally connected to the inner wall of the bearing 41, a bevel gear one 43 is fixedly connected to the surface of the rotating rod 42, a bevel gear two 44 is meshedly connected to the surface of the bevel gear one 43, an installation sleeve 45 is fixedly connected to the rear end of the hollow column 3, a servo motor 46 is installed in the inside of the installation sleeve 45, a rotating shaft 47 is fixedly connected to the output end of the servo motor 46, a bearing seat 48 is rotationally connected to the surface of the rotating shaft 47, the bevel gear two 44 is fixedly connected to the surface of the rotating shaft 47, a lifting rod 49 is fixedly connected to the surface of the rotating rod 42, a placing box one 410 is fixedly connected to the top of the lifting rod 49, a clamping plate 411 is inserted into the inner wall of the placing box one 410, and a clamping hole one 412 is formed in the end of the lifting rod 49.

[0032] In use, the servo motor 46 is started, the output end of the servo motor 46 drives the rotating shaft 47 to rotate, the rotating shaft 47 drives the bevel gear two 44 to rotate, the bevel gear two 44 drives the bevel gear one 43 to rotate, the bevel gear one 43 drives the rotating rod 42 to rotate synchronously, the lifting rod 49 rotates in an arc shape with the center of the rotating rod 42 as the center, and the servo motor 46 has a self-locking function, so that the lifting rod 49 can be fixed at a position after rotation.

[0033] In the embodiment, the number of bearings 41 is two, the two bearings 41 are distributed in a central symmetry mode at the top of the rotating rod 42, the bearings 41 are fixedly installed on the hollow column 3, the two bearings are arranged in a symmetry mode, the rotating rod is balanced in force, eccentric swing is reduced, and the stability of a lifting process and the service life of the bearing are improved.

[0034] In the embodiment, one end of the bearing seat 48 away from the rotating shaft 47 is fixedly connected to the inner wall of the hollow column 3 through bolts, the bearing seat is fixedly connected to the inner wall of the hollow column through bolts, a closed force frame is formed, the overall rigidity is enhanced, and the rotating shaft is prevented from deviating.

[0035] In the embodiment, the extension assembly 5 comprises a clamping column 51, a mounting table 52 is fixedly connected with the clamping column 51 through a clamping hole 412, the mounting table 52 is non-rotatable, one end of the mounting table 52 away from the clamping column 51 is fixedly connected with an extension rod 53, the top of the extension rod 53 is fixedly connected with a placing box two 54, and a clamping hole two 55 is arranged at the end of the extension rod 53.

[0036] In the embodiment, the structure and size of the clamping hole two 55 are the same as those of the clamping hole one 412, so that the clamping column can be universally exchanged, the management of spare parts is simplified, and the assembly efficiency is improved.

[0037] In the embodiment, the top of the base 1 is fixedly connected with a handrail 6, and universal wheels 7 are arranged at the bottom of the base 1, so that the combination of the handrail 6 and the universal wheels 7 enables the whole device to have the ability of being pushed to move, the device can be quickly moved between scenes, and the time for secondary handling is reduced.

[0038] The implementation principle of the portable small material lifting device for a construction site is as follows:

[0039] In use, first, the lifting rod 49 is rotated to be perpendicular to the hollow column 3 through the servo motor 46, then the clamping plate 411 is separated from the inside of the placing box one 410, and the material is placed in the inside of the placing box one 410, after the placement is completed, the clamping plate 411 is inserted into the inside of the placing box one 410, and the servo motor 46 is started again, the output end of the servo motor 46 drives the rotating shaft 47 to rotate, the rotating shaft 47 drives the bevel gear two 44 to rotate, the bevel gear two 44 drives the bevel gear one 43 to rotate, the bevel gear one 43 drives the rotating rod 42 to rotate synchronously, so that the lifting rod 49 rotates in an arc shape with the center of the rotating rod 42, and the angle between the lifting rod 49 and the hollow column 3 is increased, and the placing box one 410 is transported to a suitable position to perform the lifting work of the material.

[0040] The clamping column 51 is inserted into the clamping hole one 412 and the mounting table 52, and is fixed through a nut, the extension rod 53 is fixedly connected with the mounting table 52 synchronously, the length of the lifting rod 49 is increased, the length of the whole device is increased, and the whole device is ensured to work normally during the increasing process, so that the overturning of the whole device is avoided.

[0041] The above-mentioned embodiment is only a preferred embodiment of the utility model, and cannot be used to limit the range of protection of the utility model, and any non-essential change and replacement made by a person skilled in the art on the basis of the utility model belongs to the range of protection of the utility model.

Claims

1. A portable small-sized material lifting device for a construction site, characterized by: Including the base (1), the top of the base (1) is fixedly connected with the mounting plate (2) through the bolt, the top of the mounting plate (2) is fixedly connected with the hollow column (3), the top of the hollow column (3) is installed with the lifting assembly (4), the end of the lifting assembly (4) is installed with the extension assembly (5); The lifting assembly (4) includes a bearing (41), the inner wall of the bearing (41) is rotatably connected with a rotating rod (42), the surface of the rotating rod (42) is fixedly connected with a bevel gear one (43), the surface of the bevel gear one (43) is meshedly connected with a bevel gear two (44), the rear end of the hollow column (3) is fixedly connected with a mounting sleeve (45), the inside of the mounting sleeve (45) is installed with a servo motor (46), the output end of the servo motor (46) is fixedly connected with a rotating shaft (47), the surface of the rotating shaft (47) is rotatably connected with a bearing seat (48), the bevel gear two (44) is fixedly connected on the surface of the rotating shaft (47), the surface of the rotating rod (42) is fixedly connected with a lifting rod (49), the top of the lifting rod (49) is fixedly connected with a placing box one (410), the inner wall of the placing box one (410) is inserted with a clamping plate (411), the end of the lifting rod (49) is provided with a clamping hole one (412).

2. A portable small-sized material lifting device for a construction site according to claim 1, characterized in that: The number of the bearing (41) is two, the two bearings (41) are distributed in the center of the top of the rotating rod (42) in a symmetrical manner, and the bearing (41) is fixedly installed on the hollow column (3).

3. A portable small-sized material lifting device for a construction site according to claim 1, characterized in that: The end of the bearing seat (48) away from the rotating shaft (47) is fixedly connected on the inner wall of the hollow column (3) through the bolt.

4. A portable small-sized material lifting device for a construction site according to claim 1, characterized in that: The extension assembly (5) includes a clamping column (51), the clamping hole one (412) is fixedly connected with a mounting table (52) through the clamping column (51), the end of the mounting table (52) away from the clamping column (51) is fixedly connected with an extension rod (53), the top of the extension rod (53) is fixedly connected with a placing box two (54), and the end of the extension rod (53) is provided with a clamping hole two (55).

5. A portable small-sized material lifting device for a construction site according to claim 4, characterized in that: The structure and size of the clamping hole two (55) are same as those of the clamping hole one (412).

6. A portable small-sized material lifting device for a construction site according to claim 1, characterized in that: The top of the base (1) is fixedly connected with a handrail (6), and the bottom of the base (1) is respectively installed with a universal wheel (7) at four corners.

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