Preassembling-free handrail device for crane

Abstract

The utility model discloses a preassembling-free handrail device for a crane, which comprises a plurality of connecting plates connected to the top of a platform and the inner wall of the side part of the platform, a plurality of upright posts connected to the platform through the connecting plates, handrails connected to the top ends of the upright posts through first U-shaped buckles, and a plurality of transverse rods connected to the side walls of the upright posts through second U-shaped buckles, a partition plate is further arranged between the stand column and the transverse rod, the first U-shaped buckle penetrates through the partition plate to fix the handrail to the top of the stand column, the handrail is located on the inner side of the first U-shaped buckle, the transverse rod is located on the inner side of the first U-shaped buckle, and the stand column is fixed to the connecting plate through a fastener. According to the preassembling-free handrail device, the assembling and welding workload is reduced, manufacturing and production are simple and efficient, preassembling-free of the preassembling-free handrail device and the platform is achieved, the manufacturing period is greatly shortened, the production cost is reduced, by means of the preassembling-free handrail device, workers can directly operate on the platform, aerial work is avoided, the safety in the installation process is improved, and the working efficiency is improved. And the installation problem caused by poor working conditions can be solved in a large range.

Description

Technical Field

[0001] The utility model belongs to the technical field of crane railings, and in particular relates to a pre-installation-free railing device for a crane. Background Art

[0002] The crane railing is a protective device mainly used on crane platforms. The main body of the currently used railing device is composed of handrails, cross bars, middle columns, end columns and connecting pins. The profile selection, railing height and length, railing column spacing, connection type, etc. have been standardized. The current railing is a welded part with columns and handrail cross bars as one body, and the connection between the railing and the crane platform is a direct bolt connection. Therefore, the current railing needs to be pre-assembled and drilled with the corresponding crane platform before leaving the factory.

[0003] In the prior art, the pre-assembly drilling operation includes the processes of assembling railings, positioning spot welding, high-altitude drilling and drilling, installing bolts, cleaning and grinding weld scars, etc. After spot welding, there is a situation where the coating quality is damaged, and repainting and rework are required. These pre-assembly drilling operation processes cause the pre-assembly operation to occupy a long period of the main production cycle of the product, and these pre-assembly processes all need to be completed by high-altitude operation equipment built on the outside of the platform, and the corresponding platform is often 3-5m above the ground. Therefore, this kind of pre-assembly operation has a great safety hazard for high-altitude operations. In summary, there is an urgent need for a safe and fast pre-assembly railing-free device for cranes. Utility Model Content

[0004] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the utility model provides a pre-installed railing device for a crane, wherein the pre-installed railing device is arranged on a platform, and the pre-installed railing device for a crane comprises a plurality of connecting plates connected to the top of the platform and the inner wall of the side of the platform, a plurality of columns connected to the platform through the connecting plates, a handrail connected to the top of the column through a first U-shaped buckle, and a plurality of cross bars connected to the side wall of the column through a second U-shaped buckle, wherein:

[0005] A spacer is also provided between the column and the cross bar, and the first U-shaped buckle passes through the spacer to fix the handrail to the top of the column, the handrail is located on the inner side of the first U-shaped buckle, the cross bar is located on the inner side of the first U-shaped buckle, and the column is fixed to the connecting plate by fasteners.

[0006] Furthermore, in the above-mentioned pre-installed handrail-free device for a crane, it is characterized in that the handrail and the plurality of cross bars are parallel to each other, and the handrail and the column, and the cross bar and the column are perpendicular to each other.

[0007] As a specific implementation, in the above-mentioned pre-installation-free railing device for a crane, the width of the connecting plate is 2 mm to 8 mm greater than the width of the column.

[0008] As a specific implementation, in the above-mentioned pre-installation-free handrail device for cranes, it is characterized in that the columns are two end face angle steels.

[0009] As a specific implementation, in the above-mentioned pre-installation-free railing device for a crane, it is characterized in that the fastener is a fastening bolt.

[0010] As a specific implementation, in the above-mentioned pre-installation-free handrail device for a crane, the first U-shaped buckle and the second U-shaped buckle are both fixed to the column by means of double nuts and spring rings.

[0011] The utility model of the pre-installation-free railing device for cranes has the following advantages and beneficial effects:

[0012] (1) The device has a simple structure and is easy to disassemble and assemble, which reduces the amount of welding work. The production is simple and efficient, and the platform does not need to be pre-installed, which greatly shortens the production cycle and reduces production costs. In addition, the use of this pre-installed railing device allows workers to operate directly on the platform, avoiding high-altitude operations and improving safety during the installation process.

[0013] (2) By optimizing and improving the connection between the column and the platform, the device can adapt to a wide range of installation problems caused by working conditions such as the arch of the main beam and poor levelness. The first U-shaped buckle and the second U-shaped buckle are fixed to the column by double nuts and spring rings, which greatly increases the reliability of the crossbar and handrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the utility model and constitute a part of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0015] Figure 1 It is a structural schematic diagram of a pre-installed railing-free device for a crane of the utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged view of middle Ⅰ;

[0017] Figure 3It is a side view of the pre-installation-free railing device for cranes of the utility model;

[0018] Figure 4 yes Figure 3 A partial enlarged view of middle II.

[0019] Description of reference numerals:

[0020] 1-connecting plate, 2-upright column, 3-first U-shaped buckle, 4-handrail, 5-second U-shaped buckle, 6-cross bar, 7-spacer, 8-fastener, 100-platform. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 4 As shown, in the utility model, the pre-installation-free railing device for a crane is arranged on a platform 100, and the pre-installation-free railing device for a crane includes a plurality of connecting plates 1 connected to the top of the platform 100 and the inner wall of the side of the platform 100, a plurality of columns 2 connected to the platform 100 through the connecting plates 1, a handrail 4 connected to the top of the column 2 through a first U-shaped buckle 3, and a plurality of cross bars 6 connected to the side wall of the column 2 through a second U-shaped buckle 5, wherein a spacer plate 7 is further arranged between the column 2 and the cross bar 6, the first U-shaped buckle 3 passes through the spacer plate 7 to fix the handrail 4 to the top of the column 2, the handrail 4 is located on the inner side of the first U-shaped buckle 3, the cross bar 6 is located on the inner side of the first U-shaped buckle 3, and the column 2 is fixed to the connecting plate 1 through a fastener 8.

[0023] Furthermore, in the utility model of the pre-installed railing device for cranes, the handrail 4 and the multiple cross bars 6 are parallel to each other, and the handrail 4 and the column 2, and the cross bars 6 and the column 2 are perpendicular to each other, and the specifications of the handrail 4, the cross bars 6, the column 2, etc. are designed according to the general raw material specifications on the market, and the material utilization rate is improved.

[0024] Furthermore, in the pre-installed railing-free device for cranes of the present invention, the number of columns 2 and cross bars 6 is not limited, for example, the number of columns 2 and cross bars 6 is 2 or more, and the specific number of columns 2 and cross bars 6 is set according to actual usage requirements.

[0025] As a specific implementation, in the pre-installed railing-free device for a crane of the utility model, the width of the connecting plate 1 is 2 mm to 8 mm greater than the width of the column 2. More specifically, the width of the connecting plate 1 is 5 mm greater than the width of the column 2. This arrangement is used to reserve a weld when welding the column 2 to the platform 100 to avoid interference between the weld and the column 2.

[0026] As a specific implementation, in the pre-installed railing device for cranes of the utility model, the column 2 is an angle steel at both ends. This arrangement facilitates the connection between the column 2 and the connecting plate 1 and the spacer plate 7, and makes the connection between the column 2 and the connecting plate 1 and the spacer plate 7 more stable. Of course, the column 2 can also adopt other types of columns as long as the supporting effect is met.

[0027] As a specific implementation, in the pre-installation-free handrail device for cranes of the present invention, the fastener 8 is a fastening bolt. Of course, the fastener 8 can also be in the form of a rivet or a screw.

[0028] As a specific implementation method, in the pre-installed railing-free device for cranes of the utility model, the first U-shaped buckle 3 and the second U-shaped buckle 5 are both fixed to the column 2 by means of double nuts and spring rings. Such a setting greatly increases the reliability of the use of the cross bar 6 and the handrail 4, thereby improving the overall stability of the device.

[0029] The installation method of the pre-installed railing device for a crane of the utility model is as follows: when installing the device, the connecting plate 1 is welded to a designated position on the platform 100 in advance, and then the column 2 is fixed to the side of the connecting plate 1 by means of a fastener 8, and the handrail 4 and the cross bar 6 are fixed to the top and the side of the column 2 by means of a first U-shaped buckle 3 and a second U-shaped buckle 5 in sequence, thereby completing the installation of the device.

[0030] In summary, compared with the prior art, the pre-installed railing-free device for cranes of the utility model has the following advantages and beneficial effects:

[0031] (1) The device has a simple structure and is easy to assemble and disassemble, which reduces the amount of welding work, makes the production simple and efficient, and realizes the no-pre-installation of the platform 100, which greatly shortens the production cycle and reduces the production cost. In addition, the use of this no-pre-installation railing device allows the staff to operate directly on the platform 100, avoiding high-altitude operations and improving the safety during the installation process;

[0032] (2) By optimizing and improving the connection form between the column 2 and the platform 100, the device can adapt to a wide range of installation problems caused by working conditions such as the arch of the main beam and poor levelness, and the first U-shaped buckle 3 and the second U-shaped buckle 5 are both fixed to the column 2 by means of double nuts and spring rings, which greatly increases the reliability of the cross bar 6 and the handrail 4.

[0033] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper", "lower" and the like in this article are all referenced to the placement state shown in the accompanying drawings.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pre-installation-free railing device for a crane, wherein the pre-installation-free railing device is arranged on a platform, characterized in that: The pre-installed railing device for a crane comprises a plurality of connecting plates connected to the top of the platform and the inner wall of the side of the platform, a plurality of columns connected to the platform through the connecting plates, a handrail connected to the top of the column through a first U-shaped buckle, and a plurality of cross bars connected to the side wall of the column through a second U-shaped buckle, wherein: A spacer is also provided between the column and the cross bar, and the first U-shaped buckle passes through the spacer to fix the handrail to the top of the column, the handrail is located on the inner side of the first U-shaped buckle, the cross bar is located on the inner side of the first U-shaped buckle, and the column is fixed to the connecting plate by fasteners.

2. The pre-installation-free handrail device for a crane according to claim 1, characterized in that: The handrail and the plurality of crossbars are parallel to each other, and the handrail and the columns, and the crossbar and the columns are perpendicular to each other.

3. The pre-installation-free handrail device for a crane according to claim 1, characterized in that: The columns are angle steels at both ends.

4. The pre-installation-free handrail device for a crane according to claim 1, characterized in that: The fastener is a fastening bolt.

5. The pre-installation-free handrail device for a crane according to claim 1, characterized in that: The first U-shaped buckle and the second U-shaped buckle are both fixed to the column by means of double nuts and spring rings.

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