Special tool for horizontally installing and removing large nut

Abstract

The utility model provides a special tool for horizontally installing and removing a large nut. The special tool comprises a pipe body, a column body, a positioning piece, an upper reinforcing rod and a lower reinforcing rod. Wherein the column body is inserted into the center of the pipe body, the upper reinforcing rod and the lower reinforcing rod are connected to the two end faces of the pipe body, and the column body is connected with the reinforcing rod and the lower reinforcing rod; one end of the column body is connected with a positioning piece, and the positioning piece is exposed out of the pipe body; the use of a hydraulic stretcher is avoided, the difficulty in operability of the penetrating nut using the hydraulic stretcher is reduced, and the time consumption is further avoided. The device is simple in structure, easy to produce, low in tool manufacturing cost, easy and convenient to manufacture, high in safety, easy to master and convenient to use, the installation efficiency of the ball valve nut can be improved, manpower is saved, the construction period is shortened, and cost is saved.

Description

Technical Field

[0001] The present application relates to the technical field of engineering construction, and in particular to a special tool for horizontally installing and removing large nuts. Background Art

[0002] In the related art, when installing large nuts of unit ball valves, hydraulic tensioners are required to complete the installation. However, this type of hydraulic tensioner is heavy and difficult to insert into the bolts during installation. It is a time-consuming and labor-intensive task, and the installation risk is relatively high. At present, there are limited construction methods for horizontal installation of large nuts in China. In order to save manpower, improve safety, and shorten construction time, a special tool specially designed for horizontal installation and removal of large nuts is specially designed to save manpower, improve safety, and shorten construction period. Utility Model Content

[0003] In order to solve or partially solve the problems existing in the related technology, the present application provides a special tool for horizontal installation and removal of large nuts. The tool has low cost, simple production, high safety, and is simple and easy to master. It can improve the installation efficiency of ball valve nuts, save manpower, shorten construction period, and save costs.

[0004] The first aspect of the present application provides a special tool for horizontal installation and removal of large nuts, comprising a tube body, a column, a positioning piece, an upper reinforcing rod, and a lower reinforcing rod;

[0005] A column is inserted into the center of the tube body, an upper reinforcing rod and a lower reinforcing rod are connected to both end surfaces of the tube body, and the column is connected to the upper reinforcing rod and the lower reinforcing rod; a positioning piece is connected to one end of the column and exposed outside the tube body.

[0006] Optionally, in some embodiments of the first aspect, the tube body is a steel tube, the column body is a threaded steel column, the positioning piece is a hexagonal head bolt, the upper reinforcing rod and the lower reinforcing rod are steel bars, namely upper steel bars and lower steel bars, respectively, wherein the upper steel bars and the lower steel bars are welded at both ends of the steel tube, the threaded steel column is welded to the upper steel bars and the lower steel bars, and the hexagonal head of the hexagonal head bolt is welded to the end of the threaded steel column.

[0007] Optionally, in some embodiments of the first aspect, two upper steel bars are symmetrically arranged, and two lower steel bars are symmetrically arranged, and projections of the upper steel bars and the lower steel bars on a horizontal plane are perpendicular.

[0008] Optionally, in some embodiments of the first aspect, the top of the hexagonal head of the hexagonal head bolt coincides with the bottom plane of the lower steel bar.

[0009] Optionally, in some embodiments of the first aspect, the threaded steel column is cylindrical, and the diameter of the inscribed circle of the hexagonal head of the hexagonal head bolt is larger than the diameter of the threaded steel column.

[0010] Optionally, in some embodiments of the first aspect, the outer diameter of the steel pipe is 1 to 2 mm smaller than the minor diameter of the thread of the large nut or stretcher to be disassembled.

[0011] The technical solution provided by this application may have the following beneficial effects:

[0012] This device forms a tool by connecting the pipe body, column, positioning piece, upper reinforcing rod and lower reinforcing rod. When in use, fasten the positioning piece part to the bolt eye hole, and push the nut onto the pipe body by two people and rotate it. The same operation is used when installing the hydraulic tensioner. When removing the hydraulic tensioner, first rotate it out to the pipe body of the tool, and then lift it away by two people. In this way, the use of the hydraulic tensioner is avoided, and the difficulty of inserting the nut using the hydraulic tensioner is reduced, thereby avoiding time-consuming. The structure of this device is simple and easy to produce, the tool cost is low, the production is simple, the safety is high, it is simple and easy to master, and it is easy to use. It can improve the installation efficiency of the ball valve nut, save manpower, shorten the construction period, and save costs.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0015] Figure 1 It is a structural schematic diagram shown in an embodiment of the present application;

[0016] Figure 2 is a cross-sectional view of an embodiment of the present application;

[0017] Figure 3 It is a top view of an embodiment of the present application.

[0018] Reference numerals:

[0019] Steel pipe (1), threaded steel column (2), hexagonal head bolt (3), upper steel bar (4), and lower steel bar (5). DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0021] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 on the present application.

[0023] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection 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 application can be understood according to specific circumstances.

[0024] The embodiment of the present application provides a special tool for horizontal installation and removal of large nuts, which can improve the installation efficiency of ball valve nuts, save manpower, shorten the construction period, and save costs.

[0025] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 , Figure 2 and Figure 3 The tool shown in the figure is a special tool for horizontal installation and removal of large nuts, comprising a tube body, a column, a positioning piece, an upper reinforcing rod, and a lower reinforcing rod; wherein a column body is inserted into the center of the tube body, and an upper reinforcing rod and a lower reinforcing rod are connected to the two end surfaces of the tube body, and the column body is connected to the upper reinforcing rod and the lower reinforcing rod; a positioning piece is connected to one end of the column body, and the positioning piece is exposed outside the tube body. In this device, the tube body, the column, the positioning piece, the upper reinforcing rod, and the lower reinforcing rod are connected to form a Figure 1The tool shown in the figure, when in use, fasten the positioning part to the bolt eye hole, and push the nut into the pipe body by two people and rotate it. The same operation is used when installing the hydraulic tensioner. When removing the hydraulic tensioner, first rotate it out to the pipe body of the tool, and then two people can lift it away. In this way, the use of the hydraulic tensioner is avoided, and the difficulty of inserting the nut using the hydraulic tensioner is reduced, thereby avoiding time-consuming. The structure of this device is simple and easy to produce, the tool cost is low, the production is simple, the safety is high, it is simple and easy to master, and it is easy to use. It can improve the installation efficiency of the ball valve nut, save manpower, shorten the construction period, and save costs.

[0027] In one embodiment, Figure 1 As shown, the tube body is a steel tube 1, the column body is a threaded steel column 2, the positioning piece is a hexagonal bolt 3, the upper reinforcing rod and the lower reinforcing rod are steel bars, which are upper steel bars 4 and lower steel bars 5, respectively, wherein the upper steel bars 4 and the lower steel bars 5 are welded and arranged at both ends of the steel tube 1, the threaded steel column 2 is welded to the upper steel bars 4 and the lower steel bars 5, and the hexagonal head of the hexagonal bolt 3 is welded to the end of the threaded steel column 2. All the components are made of metal, which has high strength, can be directly welded, is easy to connect, is simple and easy to produce, has low tool cost, is simple to make, is wear-resistant, and has high safety.

[0028] In one embodiment, the upper steel bars 4 and the lower steel bars are used as connecting reinforcement rods. In order to improve their strength, the upper steel bars 4 are symmetrically set to two, and the lower steel bars 5 are symmetrically set to two. At the same time, in order to facilitate the centering connection setting of the threaded steel column 2, the projections of the upper steel bars 4 and the lower steel bars 5 on the horizontal plane are perpendicular, and the threaded steel column 2 is inserted in the center of the two.

[0029] In one embodiment, the top of the hexagonal head of the hexagonal bolt 3 coincides with the bottom plane of the lower steel bar 5 , thereby preventing the hexagonal bolt 3 from being too long and inconvenient for the nut to be screwed into the steel pipe 1 when used as a positioning connector with a bolt eye hole.

[0030] In one embodiment, the threaded steel column 2 is cylindrical, and the diameter of the inscribed circle of the hexagonal head of the hexagonal head bolt 3 is larger than the diameter of the threaded steel column 2, which facilitates fastening and welding.

[0031] In one embodiment, the outer diameter of the steel pipe 1 is 1-2 mm smaller than the thread diameter of the large nut or tensioner to be disassembled, so that the large nut can be screwed into the steel pipe 1 without shaking.

[0032] In one embodiment, a hexagonal head bolt 3 and a threaded steel column 2 are conveniently connected in a detachable manner. Specifically, a threaded sleeve is provided at the hexagonal head end of the hexagonal head bolt 3, and a thread is provided on the corresponding threaded steel column 2. The threaded sleeve is threadedly connected to the thread of the threaded steel column 2. In this way, the hexagonal head bolt 3 can be quickly replaced for use when using bolt eye holes of different sizes.

[0033] When the device is in use, the bolt part of the hexagonal bolt 3 of the tool is screwed into the bolt eye hole to tighten it, and the nut is lifted by two people and pushed onto the steel pipe 1 and rotated. The same operation is used when installing the hydraulic tensioner. When removing the hydraulic tensioner, first rotate it out to the steel pipe 1 of the tool, and then lift it away by two people.

[0034] Finally, it should be noted that, in this article, relationships such as first and second, etc. are used only 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. Moreover, the terms include, include or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0036] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A special tool for horizontal installation and removal of large nuts, characterized by: It includes a tube body, a column, a positioning piece, an upper reinforcing rod, and a lower reinforcing rod; The column is inserted into the center of the tube body, an upper reinforcing rod and a lower reinforcing rod are connected to both end surfaces of the tube body, and the column is connected to the upper reinforcing rod and the lower reinforcing rod; the positioning piece is connected to one end of the column and exposed outside the tube body.

2. A special tool for horizontal installation and removal of large nuts according to claim 1, characterized in that: The tube body is a steel tube (1), the column body is a threaded steel column (2), the positioning piece is a hexagonal bolt (3), the upper reinforcing rod and the lower reinforcing rod are steel bars, which are respectively an upper steel bar (4) and a lower steel bar (5), wherein the upper steel bar (4) and the lower steel bar (5) are welded at both ends of the steel tube (1), the threaded steel column (2) is welded to the upper steel bar (4) and the lower steel bar (5), and the hexagonal head of the hexagonal bolt (3) is welded to the end of the threaded steel column (2).

3. A special tool for horizontal installation and removal of large nuts according to claim 2, characterized in that: The upper steel bars (4) are symmetrically arranged in two pieces, and the lower steel bars (5) are symmetrically arranged in two pieces, and the projections of the upper steel bars (4) and the lower steel bars (5) on the horizontal plane are perpendicular.

4. A special tool for horizontal installation and removal of large nuts according to claim 2 or 3, characterized in that: The top of the hexagonal head of the hexagonal head bolt (3) coincides with the bottom plane of the lower steel bar (5).

5. A special tool for horizontal installation and removal of large nuts according to claim 2 or 3, characterized in that: The threaded steel column (2) is cylindrical, and the diameter of the inscribed circle of the hexagonal head of the hexagonal head bolt (3) is greater than the diameter of the threaded steel column (2).

6. A special tool for horizontal installation and removal of large nuts according to claim 2 or 3, characterized in that: The outer diameter of the steel pipe (1) is 1 to 2 mm smaller than the minor diameter of the thread of the large nut or tensioner to be disassembled.

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