A quick installation auxiliary device for manhole grille

Abstract

The present invention relates to the field of shipbuilding technology, and specifically discloses a manhole grille quick installation auxiliary device, comprising a rectangular installation auxiliary plate, wherein the center position of the installation auxiliary plate is cut to form a manhole reference positioning hole; the installation auxiliary plate is provided with a plurality of transverse positioning groove groups and longitudinal positioning groove groups; each of the transverse positioning groove groups includes two oppositely arranged transverse positioning grooves, and the two transverse positioning grooves are respectively arranged at one opposite end of the manhole reference positioning hole; each of the longitudinal positioning groove groups includes two oppositely arranged longitudinal positioning grooves, and the two longitudinal positioning grooves are respectively arranged at the other opposite end of the manhole reference positioning hole; the notches of the transverse positioning grooves and the longitudinal positioning grooves are both oriented toward the manhole reference positioning hole and are connected to the manhole reference positioning hole. The present invention is easy to use, can reduce the labor intensity of workers, improve work efficiency, and ensure assembly quality.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to a manhole grille quick installation auxiliary device. Background Art

[0002] During the hull block construction phase, grilles need to be installed at the manholes of the hull. Currently, the installation of manhole grilles is done manually. This not only results in low installation efficiency, but also often leads to installation errors by novices. In addition, there are no auxiliary tools for installing grilles, so the installation can only be done manually by experienced workers. However, the following defects still exist:

[0003] 1. Manual marking and then installing the grille is slow. For example, if you want to install an 800*600 manhole, which requires 5 grilles, it takes about ten minutes to mark and spot weld them, which is very inefficient.

[0004] 2. The installation accuracy is difficult to control after manual marking, and there are often misalignments. In addition, there is no auxiliary device, and the user can only judge whether the installation is vertical by feeling, which results in poor aesthetics.

[0005] 3. Due to angle problems, the welding quality and welding angle size on both sides of the grille are inconsistent, resulting in poor assembly quality. Summary of the Invention

[0006] The technical problem to be solved by the present invention is how to solve the problems of high labor intensity, low efficiency and poor assembly quality in the prior art which require manual marking before installing the grille.

[0007] In order to solve the above technical problems, the present invention provides a manhole grille quick installation auxiliary device, comprising a rectangular installation auxiliary plate, wherein the center position of the installation auxiliary plate is cut to form a manhole reference positioning hole;

[0008] The auxiliary installation plate is provided with a plurality of transverse positioning groove groups and a longitudinal positioning groove group;

[0009] Each of the transverse positioning groove groups includes two oppositely arranged transverse positioning grooves, and the two transverse positioning grooves are respectively arranged at opposite ends of the manhole reference positioning hole;

[0010] Each of the longitudinal positioning groove groups includes two longitudinal positioning grooves arranged opposite to each other, and the two longitudinal positioning grooves are respectively arranged at the other opposite ends of the manhole reference positioning hole;

[0011] The notches of the transverse positioning groove and the longitudinal positioning groove are both oriented toward the manhole reference positioning hole and are communicated with the manhole reference positioning hole.

[0012] Further preferably, first flanges are provided on both sides of the slot opening of each of the transverse positioning slots, and the first flanges on both sides extend toward the central axis of the transverse positioning slot to form a transverse limiting slot.

[0013] Further preferably, the width of the transverse limiting notch is smaller than the width of the transverse positioning groove.

[0014] Further preferably, the transverse positioning groove forms a transverse welding gap at a position corresponding to the first flange.

[0015] Further preferably, second flanges are provided on both sides of the slot opening of the longitudinal positioning slot, and the second flanges on both sides extend toward the central axis of the longitudinal positioning slot to form a longitudinal limiting slot.

[0016] Further preferably, the width of the longitudinal limiting notch is smaller than the width of the longitudinal positioning groove.

[0017] Further preferably, the longitudinal positioning groove forms a longitudinal welding gap at a position corresponding to the second flange.

[0018] Further preferably, the four corners of the auxiliary installation plate are provided with rounded corners, and the radius of the rounded corners is R1, wherein 30≤R1≤100mm.

[0019] Further preferably, lightening holes are opened at the four corners of the auxiliary installation plate, and the radius of the lightening hole is R2, wherein 30≤R2≤40mm.

[0020] Further preferably, the longitudinal L1×lateral L2 specifications of the plate are 600 mm×800 mm, and the thickness of the auxiliary installation plate is not greater than 100 mm.

[0021] Compared with the prior art, the quick installation auxiliary device for manhole grille provided by the present invention has the following advantages:

[0022] The manhole grille quick installation auxiliary device provided by the present invention has a simple structure and is easy to use. When assembling the grille, the installation auxiliary plate is placed at the manhole of the hull, and the manhole reference positioning hole is made to correspond to the manhole on the hull to ensure that the installed grille meets the installation accuracy. Each grille is placed in correspondence with a group of transverse positioning grooves until the transverse positioning grooves are filled, or each grille is placed in correspondence with a group of longitudinal positioning grooves until the longitudinal positioning grooves are filled. The transverse positioning grooves or the longitudinal positioning grooves play a positioning role for the grille, thereby ensuring the subsequent welding quality. Using the manhole grille quick installation auxiliary device of the present invention, the expected effect can be achieved without marking during the assembly process. This tool is simple in design, lightweight, and easy to use. It can reduce the labor intensity of workers while improving work efficiency and ensuring assembly quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a stereoscopic diagram of a manhole grille quick installation auxiliary device according to the present invention.

[0024] Figure 2 It is a front view of a manhole grille quick installation auxiliary device described in the present invention.

[0025] Figure 3 It is a schematic diagram of the assembly of the longitudinally mounted grille of the present invention.

[0026] Figure 4 It is a schematic diagram of the assembly of the horizontally installed grille of the present invention.

[0027] In the figure, 1. Installation auxiliary plate; 2. Manhole reference positioning hole; 3. Lightening hole; 4. Horizontal positioning groove; 41. First flange; 42. Horizontal limit notch; 43. Horizontal welding gap; 5. Longitudinal positioning groove; 51. Second flange; 52. Longitudinal limit notch; 53. Longitudinal welding gap; 6. Longitudinal installation grille; 7. Horizontal installation grille. DETAILED DESCRIPTION

[0028] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "lateral", "longitudinal", "inner", "outer", "between", etc. used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, meaning, for example, fixed, removable, or integral; mechanical or electrical; direct or indirect through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0031] The invention provides a manhole grille quick installation auxiliary device. The device has a simple structure. After using the device, there is no need to mark lines in advance when installing the manhole grille, so the use is more convenient.

[0032] Please refer to Figure 1-4 The manhole grille quick installation auxiliary device includes a rectangular installation auxiliary plate 1, and a manhole reference positioning hole 2 is cut at the center position of the installation auxiliary plate 1. The setting of the manhole reference positioning hole 2 facilitates the placement of the installation auxiliary plate 1 at the manhole of the hull, and makes the manhole reference positioning hole 2 correspond to the manhole on the hull to achieve the positioning of the installation auxiliary plate 1, ensuring that the installed grille meets the installation accuracy, and eliminating the tedious steps of repeated positioning during the subsequent installation of the grille.

[0033] In a specific example of the present invention, a plurality of transverse positioning groove groups and longitudinal positioning groove groups are provided on the installation auxiliary plate 1; it should be noted that the longitudinal direction refers to the longitudinal direction of the positioning groove groups. Figure 2 The direction indicated by "L1" is horizontal. Figure 2 The direction indicated by "L2".

[0034] Specifically, each transverse positioning groove group includes two oppositely arranged transverse positioning grooves 4, and the two transverse positioning grooves 4 are respectively arranged at one opposite end of the manhole reference positioning hole 2; each longitudinal positioning groove group includes two oppositely arranged longitudinal positioning grooves 5, and the two longitudinal positioning grooves 5 are respectively arranged at the other opposite end of the manhole reference positioning hole 2, and the slots of the transverse positioning grooves 4 and the longitudinal positioning grooves 5 are both facing the manhole reference positioning hole 2 and are connected with the manhole reference positioning hole 2; when assembling the grille, each grille is placed in accordance with a group of transverse positioning grooves 4 until the transverse positioning grooves 4 are filled, or each grille is placed in accordance with a group of longitudinal positioning grooves 5 until the longitudinal positioning grooves 5 are filled, and the transverse positioning grooves 4 or the longitudinal positioning grooves 5 play a role in positioning the grille, thereby achieving quick installation and easy operation.

[0035] In some examples of the present invention, reference Figure 2 Each transverse positioning groove 4 is provided with a first flange 41 on both sides of the groove, and the first flanges 41 on both sides extend toward the central axis of the transverse positioning groove 4 to form a transverse limiting groove 42 to achieve further positioning of the transverse mounting grille 7 to be assembled. The width of the transverse limiting groove 42 should be slightly larger than the radial width of the transverse mounting grille 7.

[0036] In a preferred embodiment of the present invention, referring to Figure 4 The width of the transverse limiting groove 42 is smaller than the width of the transverse positioning groove 4. After the transverse mounting grid 7 is placed corresponding to the transverse limiting groove 42, a transverse welding gap 43 is formed at the position of the transverse positioning groove 4 corresponding to the first flange 41, thereby making it convenient for welding rods or welding operations on both sides of the end of the transverse mounting grid 7.

[0037] In addition, in the above example, a first flange 41 is provided to form a transverse limiting groove 42 to limit the transverse installation grid 7, and a transverse welding gap 43 is formed on the inner side of the transverse positioning groove 4 to form a welding space. Therefore, there is no problem of inconsistent welding quality and weld angle size on both sides of the grid due to the angle.

[0038] In some examples of the present invention, reference Figure 2 and Figure 3 A second flange 51 is provided on both sides of the longitudinal positioning groove 5. The second flanges 51 on both sides extend toward the central axis of the longitudinal positioning groove 5 to form a longitudinal limiting groove 52 to achieve further positioning of the longitudinal mounting grille 6 to be assembled. The width of the longitudinal limiting groove 52 should be slightly larger than the radial width of the longitudinal mounting grille 6.

[0039] In a preferred example of the present invention, the width of the longitudinal limit slot 52 is smaller than the width of the longitudinal positioning slot 5. After the longitudinal mounting grid 6 is placed corresponding to the longitudinal limit slot 52, a longitudinal welding gap 53 is formed at the position of the longitudinal positioning slot 5 corresponding to the second flange 51, thereby facilitating welding operations of welding rods or welding on both sides of the end of the longitudinal mounting grid 6.

[0040] In addition, in the above example, a longitudinal limiting groove 52 is formed by setting a second flange 51 to limit the horizontal installation grid 7, and a longitudinal welding gap 53 is formed on the inner side of the longitudinal positioning groove 5 to form a welding space. Therefore, there is also no problem of inconsistent welding quality and weld angle size on both sides of the grid due to the angle.

[0041] It should be noted that, taking the installation of an 800*600 manhole as an example, the radial width of the longitudinal installation grille 6 or the transverse installation grille 7 is generally 16 mm, and the width of the transverse limit slot 42 or the longitudinal limit slot 52 should be between 16.2-16.5 mm. If it is too large, it will easily lead to quality defects such as non-verticality after welding.

[0042] In other examples of the present invention, the four corners of the installation auxiliary plate 1 are provided with chamfered corners, which can not only reduce the weight of the installation auxiliary plate 1, but also avoid harm to the workers using it. In addition, it can also reduce the production cost of the installation auxiliary plate 1. Preferably, the radius of the chamfered corner is R1, where 30≤R1≤100mm.

[0043] In other examples of the present invention, lightening holes 3 are provided at the four corners of the installation auxiliary plate 1 to reduce the weight of the installation auxiliary plate 1, so that the tooling can be operated by one person, while also reducing the production cost of the installation auxiliary plate 1. Preferably, the radius of the lightening hole 3 is R2, where 30≤R2≤40mm.

[0044] In other examples of the present invention, the longitudinal L1×lateral L2 specifications of the installation auxiliary plate 1 are 600mm×800mm to meet the installation dimensions of the manhole of the hull, and the thickness of the installation auxiliary plate 1 is not more than 100mm, which can avoid the installation auxiliary plate 1 being too heavy and ensure that the installation auxiliary plate 1 can be operated by one person, thereby improving processing efficiency.

[0045] The working process of the present invention is as follows: when assembling the grille, the installation auxiliary plate 1 is placed at the manhole of the hull, and the manhole reference positioning hole 2 is made to correspond to the manhole on the hull to ensure that the installed grille meets the installation accuracy, and each grille is placed in correspondence with a group of transverse positioning grooves 4 until the transverse positioning grooves 4 are filled, or each grille is placed in correspondence with a group of longitudinal positioning grooves 5 until the longitudinal positioning grooves 5 are filled. The transverse positioning grooves 4 or the longitudinal positioning grooves 5 play a positioning role for the grille, thereby ensuring the subsequent welding quality.

[0046] In summary, the embodiment of the present invention provides a manhole grille quick installation auxiliary device, which has a simple structure and is easy to use. By using the manhole grille quick installation auxiliary device of the present invention, the desired effect can be achieved without marking during the assembly process. This tool is simple in design, lightweight, and easy to use. It can reduce the labor intensity of workers while improving work efficiency and ensuring assembly quality.

[0047] The above description is only a preferred embodiment of the present invention. It should be noted that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be considered as the scope of protection of the present invention. The basic principles, main features and advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above preferred embodiments. The examples should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0048] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A quick installation auxiliary device for manhole grille, characterized by: A rectangular auxiliary installation plate is provided, wherein a manhole reference positioning hole is formed by cutting at the center of the auxiliary installation plate; The auxiliary installation plate is provided with a plurality of transverse positioning groove groups and a longitudinal positioning groove group; Each of the transverse positioning groove groups includes two oppositely arranged transverse positioning grooves, and the two transverse positioning grooves are respectively arranged at opposite ends of the manhole reference positioning hole; Each of the longitudinal positioning groove groups includes two longitudinal positioning grooves arranged opposite to each other, and the two longitudinal positioning grooves are respectively arranged at the other opposite ends of the manhole reference positioning hole; The notches of the transverse positioning groove and the longitudinal positioning groove are both oriented toward the manhole reference positioning hole and are in communication with the manhole reference positioning hole; Each of the transverse positioning grooves is provided with first flanges on both sides of the groove, and the first flanges on both sides extend toward the central axis of the transverse positioning groove to form a transverse limiting groove; The width of the transverse limiting notch is smaller than the width of the transverse positioning groove; The transverse positioning groove forms a transverse welding gap at a position corresponding to the first flange; A second flange is provided on both sides of the longitudinal positioning groove, and the second flanges on both sides extend toward the central axis of the longitudinal positioning groove to form a longitudinal limiting groove; The width of the longitudinal limiting notch is smaller than the width of the longitudinal positioning groove; The longitudinal positioning groove forms a longitudinal welding gap at a position corresponding to the second flange; The four corners of the auxiliary installation plate are all provided with rounded corners, and the radius of the rounded corners is R1, wherein 30≤R1≤100mm; Lightening holes are provided at the four corners of the auxiliary installation plate, and the radius of the lightening holes is R2, wherein 30≤R2≤40mm.

2. A manhole grille quick installation auxiliary device according to claim 1, characterized in that: The longitudinal L1×lateral L2 specifications of the auxiliary installation plate are 600mm×800mm, and the thickness of the auxiliary installation plate is not greater than 100mm.

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