Portable auxiliary device suitable for fastening cable clamp of cable bridge

Abstract

The portable auxiliary device comprises a pressure-bearing cylinder, an opening is formed in one side of the lower portion of the pressure-bearing cylinder, a tensioning device is arranged on the pressure-bearing cylinder, an extension screw rod is connected into the pressure-bearing cylinder and the tensioning device in a sliding mode, the upper end of the extension screw rod is connected with a first fastening nut, and the lower end of the extension screw rod is connected with a second fastening nut. The lower end of the extension screw is connected with a second fastening nut, the second fastening nut is a two-way connecting nut, the pressure-bearing cylinder is placed on one side of the cable clamp bolt and used for placing a tensioning device, the extension screw of the device is connected with a cable clamp screw to be fastened through the second fastening nut, the cable clamp screw is stretched through the tensioning device, and the tensioning device is used for tensioning the cable clamp screw to fasten the cable clamp screw. The cable clamp nut connected to the cable clamp screw ascends along with stretching of the cable clamp screw, the wrench stretches into the opening of the pressure-bearing barrel, the cable clamp nut can be tightened downwards, the fastening force of the cable clamp bolt is enhanced, the device is simple in structure, convenient and fast to manufacture, low in cost and convenient to carry, the engineering efficiency is improved, and meanwhile the fastening force of the cable clamp bolt can be effectively enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction equipment, in particular to a convenient auxiliary device suitable for fastening cable clamps of cable bridges. Background Art

[0002] With the orderly development of new urbanization and the widespread application of metal structures, metal structure buildings have the advantages of high strength, light weight, good overall rigidity and strong deformation ability. They play an important role in public buildings, industrial plants, municipal transportation, road transportation and other fields, especially in the construction of large-span bridges across rivers and roads and other special terrains, and the construction of ultra-large-span industrial plants. For the construction of large-span bridges in special terrains and complex environments and the construction of ultra-large-span industrial plants, conventional column base structures can no longer meet actual needs. The safety, quality and progress of the large-span metal structure connection process are particularly important.

[0003] Suspension bridges are often chosen for long-span bridge construction. They are composed of five major load-bearing components, including main cables, bridge towers, anchors, suspenders and stiffening beams. Among them, the cable clamp is an important component connecting the main cable of the cable bridge. The cable clamp relies on the pre-tightening force of the bolt group to tighten the main cable, thereby forming resistance. When the resistance is insufficient, that is, when the tightening force of the nut and the screw is insufficient, the cable clamp will slip or become empty, affecting the safety of the connection. Once the cable clamp of a suspension bridge in operation slips, it is not easy to repair. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a convenient auxiliary device suitable for fastening cable clamps of cable bridges, which can solve the problem that the cable clamps may slip or become empty due to insufficient fastening force of the cable clamp bolts.

[0005] To this end, the utility model adopts the following technical solutions:

[0006] A convenient auxiliary device suitable for fastening cable clamps of cable bridges, comprising a pressure-bearing cylinder, an opening being provided on one side of the lower part of the pressure-bearing cylinder, a tensioner being provided on the upper part of the pressure-bearing cylinder, an extension screw being slidably connected inside the pressure-bearing cylinder and the tensioner, a first fastening nut being connected to the upper end of the extension screw, and a second fastening nut being connected to the lower end of the extension screw, wherein the second fastening nut is a bidirectional connection nut.

[0007] On the basis of adopting the above technical solutions, the present invention can also adopt the following further technical solutions, or use these further technical solutions in combination:

[0008] The upper end of the pressure-bearing cylinder is provided with a pressure-bearing plane for placing the tensioner, and the pressure-bearing plane is provided with a through hole for passing the extension screw.

[0009] The lower part of the pressure-bearing cylinder is also provided with an oblique cut.

[0010] Compared with the prior art, the utility model has the following advantages and beneficial effects: by placing a pressure-bearing cylinder on one side of the cable clamp bolt for placing the tensioner, and connecting the extension screw of the device to the cable clamp screw to be tightened through a second fastening nut, and using the tensioner to stretch the cable clamp screw, the cable clamp nut connected to the cable clamp screw rises as the cable clamp screw is stretched, and the wrench is inserted into the opening of the pressure-bearing cylinder to tighten the cable clamp nut downward, thereby strengthening the tightening force of the cable clamp bolt and improving the tightening efficiency and accuracy of the cable clamp bolt. The utility model has a simple structure, is easy to manufacture and has a low cost, and is easy to carry. While improving engineering efficiency, it can effectively enhance the tightening force of the cable clamp bolt and improve the tightening efficiency and accuracy of the cable clamp bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2-Figure 3 It is a structural schematic diagram of the pressure-bearing cylinder of the utility model.

[0013] Figure 4 For this utility model Figure 2 Side view of.

[0014] Figure 5 For this utility model Figure 3 Side view of.

[0015] Figure 6 It is a schematic diagram of the side structure of a cable bridge cable clamp in the prior art.

[0016] Figure 7 This is a schematic diagram of the structure after the cable clamp bolt is stretched.

[0017] Figure 8 It is a front structural schematic diagram of a cable bridge cable clamp in the prior art. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the preferred implementation scheme of the present utility model is described below in conjunction with specific embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent elements with the same or similar functions. However, it should be understood that the accompanying drawings are only used for illustrative purposes and cannot be understood as limitations on the present utility model. In order to better illustrate the present embodiment, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted, and the positional relationship described in the accompanying drawings is only used for illustrative purposes and cannot be understood as limitations on the present utility model.

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0020] The utility model provides a convenient auxiliary device suitable for fastening cable bridge cable clamps, comprising a pressure-bearing cylinder 1, an opening 11 is provided on one side of the lower part of the pressure-bearing cylinder 1, a tensioner 5 is provided on the upper part of the pressure-bearing cylinder 1, an extension screw 4 is slidably connected inside the pressure-bearing cylinder 1 and the tensioner 5, the upper end of the extension screw 4 is connected to a first fastening nut 3, the lower end of the extension screw 4 is connected to a second fastening nut 2, and the second fastening nut 2 is a bidirectional connection nut.

[0021] like Figure 1 and Figure 6 As shown, the bottom surface of the pressure-bearing cylinder 1 is placed on the surface of the cable clamp where the cable clamp nut is located, and the second fastening nut 2 serves as a two-way connecting nut, one end of which is used to connect the extension screw 4, and the other end of which is used to connect the cable clamp screw. The extension screw 4 is fixed above the cable clamp screw through the second fastening nut 2, and the first fastening nut 3 is tightened downward to fasten the tensioner 5 above the pressure-bearing cylinder 1.

[0022] like Figure 1 As shown, the second fastening nut 2 should preferably be a national standard finished product. If it is difficult to purchase, the second fastening nut 2 can be made by welding two nuts (an extension screw nut and a cable clamp screw nut), but a pull-out test must be carried out to ensure that the welding quality of the welded second fastening nut 2 can meet the tensile force required by the design. The size of the two nuts depends on the actual size of the extension screw 4 and the cable clamp screw. If the diameter of the extension screw 4 is larger than the diameter of the cable clamp screw, correspondingly, the diameter of the extension screw nut is larger than the diameter of the cable clamp screw nut, and the two are welded into a bidirectional reducing nut.

[0023] The upper end of the pressure-bearing cylinder 1 is provided with a pressure-bearing plane 12 for placing the tensioner 5 , and the pressure-bearing plane 12 is provided with a through hole 121 for passing the extension screw 4 .

[0024] like Figure 2 As shown, the pressure-bearing cylinder 1 can be a cylindrical cylinder surrounded by a top surface and side surfaces and an open bottom surface. In this case, the top surface of the pressure-bearing cylinder 1 is the pressure-bearing plane 12; Figure 3 As shown, or the top and bottom surfaces of the pressure cylinder 1 are both open, and a disc is welded on the top surface. In this embodiment, the pressure cylinder 1 and the disc are both steel parts, wherein the pressure cylinder 1 is a 20# seamless steel pipe, and the disc is a Q235 steel plate. At this time, the outer edge of the upper end of the pressure cylinder 1 should be beveled to ensure the welding quality of the pressure cylinder and the disc. The diameter of the disc is larger than the diameter of the pressure cylinder 1. At this time, the upper surface of the disc is the pressure plane 12.

[0025] The tensioner 5 is a cylindrical tensioner that can be purchased directly, and the diameter of the pressure-bearing plane 12 is preferably not less than the diameter of the tensioner 5 .

[0026] The lower part of the pressure-bearing tube 1 is also provided with an oblique cutout 13 .

[0027] like Figure 1-Figure 6 As shown, when the pressure-bearing cylinder 1 is in use, one side of the raised surface of the cable clamp is located below the oblique cut 3. The main function of the oblique cut 3 is to avoid interference between the pressure-bearing cylinder 1 and the raised surface of the cable clamp, ensuring that the bottom surface of the pressure-bearing cylinder 1 is placed horizontally on the cable clamp surface, thereby ensuring the levelness and stability of the tensioner 5.

[0028] In this embodiment, the first fastening nut 3 is a high-strength extended nut and is an M30 finished part. When the second fastening nut 2 is a bidirectional reducing nut, the bidirectional reducing nut is changed from M24 to M30, the extension screw is 30mm fine-rolled threaded steel, and the cable clamp screw is a structural member (diameter 24mm) of the main body of the device. The above models are only examples and can be customized according to the on-site construction conditions and after appropriate pull-out tests. The sizes of the relevant components are determined according to the design requirements and actual conditions, and the test results are obtained by a third-party testing unit with relevant qualifications.

[0029] like Figure 6 and Figure 8 As shown in FIG. 1 , a schematic diagram of a cable clamp fastening a main cable of a cable bridge in the prior art is made. The device is mainly used for fastening a cable clamp screw and a cable clamp nut, such as Figure 6 As shown, the screw of the cable clamp is obviously short. When tightened manually with an electric wrench, the tightening torque cannot meet the design requirements. There is a possibility that the tightening force of the cable clamp bolt is insufficient, causing the cable clamp to slip or become empty. If a tensioner is used for further tightening, the length of the cable clamp screw does not meet the conditions for using the tensioner, and due to the bulge in the middle of the cable clamp, the tensioner cannot be stably placed above the cable clamp.

[0030] The tensioner 5 of the device is placed on the pressure plane 12 of the pressure cylinder 1, ensuring that the bottom surface of the pressure cylinder 1 is horizontally placed on the connecting surface of the cable clamp nut and the cable clamp, which can ensure that the tensioner 5 can operate smoothly.

[0031] The second fastening nut 2 is used to connect the shorter cable clamp screw rod with the extension screw rod 4 to form an elongated and firm force-bearing rod. The designed fastening force data is input to the tensioner 5. The tensioner 5 stretches according to the input stretching data. The tensioner 5 provides a reaction force to stretch the cable clamp screw rod to a suitable length, thereby improving the fastening efficiency of the cable clamp bolt and ensuring the accuracy of its fastening force. Figure 7, which is a schematic diagram of the cable clamp screw after being stretched. (At this time, the second fastening nut 2 of the device is still connected to the upper end of the cable clamp screw, and the oblique cut 13 of the pressure-bearing cylinder 1 is located above the cable clamp protrusion, and the opening 11 of the pressure-bearing cylinder 1 faces any side except the cable clamp protrusion. In this embodiment, the opening 11 of the pressure-bearing cylinder 1 is located on the parallel corresponding surface of the oblique cut 13, which is not shown in the figure.)

[0032] After the cable clamp screw is stretched, the cable clamp nut leaves the cable clamp surface, and the cable clamp nut is tightened again manually using a wrench so that the cable clamp nut fits tightly against the cable clamp surface again. At this time, the tightening force of the cable clamp bolt is greatly improved compared to before the cable clamp screw is stretched. Figure 7 The direction of the arrow on the middle cable clamp nut is the moving direction of the cable clamp nut.

[0033] Finally, remove the device from above the cable clamp, and connect the cap nut to the upper end of the cable clamp screw.

[0034] According to the description and drawings of the utility model, those skilled in the art can easily manufacture or use the convenient auxiliary device of the utility model suitable for fastening cable bridge cable clamps, and can produce the positive effects recorded in the utility model.

[0035] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present utility model and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two mechanisms, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0036] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "inside", "horizontal", "end", "length", "outer end", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the mechanism or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are also used only for the simplicity of description, and do not indicate or imply relative importance.

[0037] Furthermore, in practicing the claims of the present invention, those skilled in the art may understand and affect variations to the disclosed embodiments by studying the drawings, disclosure, and appended claims. In addition, in the claims and the specification, words such as "comprises", "comprising", etc. do not exclude other elements or steps, and non-plural nouns do not exclude their plural forms.

[0038] The above is only a preferred embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made according to the present invention are covered by the scope of the claims of the present invention and will not be listed one by one here.

Claims

1. A convenient auxiliary device suitable for fastening cable bridge cable clamps, characterized in that: The invention comprises a pressure-bearing cylinder (1), wherein one side of the lower part of the pressure-bearing cylinder (1) is provided with an opening (11), a tensioner (5) is provided on the upper part of the pressure-bearing cylinder (1), an extension screw (4) is slidably connected inside the pressure-bearing cylinder (1) and the tensioner (5), the upper end of the extension screw (4) is connected to a first fastening nut (3), and the lower end of the extension screw (4) is connected to a second fastening nut (2), and the second fastening nut (2) is a bidirectional connection nut.

2. A portable auxiliary device suitable for fastening cable bridge cable clamps as claimed in claim 1, characterized in that: The upper end of the pressure-bearing cylinder (1) is provided with a pressure-bearing plane (12) for placing the tensioner (5), and the pressure-bearing plane (12) is provided with a through hole (121) for passing the extension screw (4).

3. A portable auxiliary device suitable for fastening cable bridge cable clamps as claimed in claim 1, characterized in that: The lower part of the pressure-bearing cylinder (1) is also provided with an oblique cutout (13).

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