Stud circulating fastening device

Abstract

The utility model discloses a double-end bolt circulating fastening device, which relates to the field of fastening tools and comprises a main rod (5), a first supporting rod, a second supporting rod (6) and two-way ratchet wheel heads respectively connected to the end parts of the first supporting rod and the second supporting rod (6), at least one of the first supporting rod and the second supporting rod (6) is hinged to the main rod (5), and the two bidirectional ratchet wheel heads are coaxial when the double-end bolt is screwed. The mode that multiple tools and multiple persons are matched when a stud is fastened through a traditional fastening wrench is changed, the multifunctional fastening wrench is suitable for installation of nuts and bolts in various scenes, labor, labor and time are saved, the relative tightening depth equivalence of the nuts in the nut fastening process is guaranteed, and the installation efficiency is improved. And hidden cracks and the like caused by overlarge relative rotation stress of a single nut are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fastening tooling, in particular to a double-headed bolt cyclic fastening device. Background Art

[0002] Stud screws or studs. Used to connect machinery with fixed links. Both ends of the stud bolts have threads. The middle screw rod can be thick or thin. When tightening, two movable nuts are required. It is generally used in mining machinery, bridges, automobiles, motorcycles, boiler steel structures, hanging towers, large-span steel structures and large buildings. The existing fastening devices are mainly dead-end and movable-end wrenches and hydraulic wrenches. There are many combined wrench tools, much labor consumption, difficulty in achieving torque guarantee, low precision of installation parts, and low applicability in narrow spaces during construction. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a stud bolt circulation fastening device which can improve the fastening efficiency of the stud bolts and has a simple structure.

[0004] The technical solution adopted by the utility model to solve its technical problems is: the stud bolt cyclic tightening device comprises a main rod, a first support rod, a second support rod, and a two-way ratchet head respectively connected to the ends of the first support rod and the second support rod, the two two-way ratchet heads are respectively provided with forward and reverse paddles, at least one of the first support rod and the second support rod is hinged to the main rod and the two two-way ratchet heads are coaxial when the stud bolt is screwed.

[0005] Furthermore, the first support rod includes a first rod body and a second rod body, one end of the first rod body is hinged to the main rod, and the other end of the first rod body is hinged to the second rod body, and the free end of the second rod body is provided with the bidirectional ratchet head.

[0006] Furthermore, the first rod body and the second rod body are both straight rods.

[0007] Furthermore, a clearance gap is provided on the main rod, and one end of the first rod body is hinged at the clearance gap.

[0008] Furthermore, the second support rod is slidably connected to the end of the main rod, and the end of the second support rod is provided with the bidirectional ratchet head.

[0009] Furthermore, the second support rod is sleeved on the main rod and can be fixed relative to the main rod after sliding on the main rod to a position.

[0010] Furthermore, the main rod, the first support rod and the second support rod are Y-shaped as a whole.

[0011] The stud bolt cycle tightening device comprises a main rod, a first support rod and a second support rod, wherein the first support rod and the second support rod are respectively provided with a bidirectional ratchet head, and one of the first support rod and the second support rod can be hinged relative to the main rod, so that the two bidirectional ratchet heads are coaxial when the stud bolt is screwed, thereby realizing the tightening of the stud bolt. The utility model changes the form of multiple tools and multiple people's cooperation when the traditional tightening wrench is used to tighten the stud bolt, and enhances the combination of components and accessories on the basis of the traditional tightening wrench, which can be disassembled and combined, and is suitable for the installation of nuts and bolts in various scenarios, saving manpower, effort and time, and ensuring the relative tightening depth equivalence of the nut during the tightening of the nut, and avoiding the hidden crack hidden danger caused by excessive relative rotation stress of a single nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0013] Figure 1 It is a structural schematic diagram of a stud bolt cyclic fastening device according to an embodiment of the utility model.

[0014] Description of reference numerals:

[0015] 1. First two-way ratchet head; 2. Forward and reverse paddles; 3. Second rod body; 4. First rod body; 5. Main rod; 6. Second support rod; 7. Second two-way ratchet head. DETAILED DESCRIPTION

[0016] In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation methods of the present utility model are now described in detail with reference to the accompanying drawings.

[0017] like Figure 1 As shown, the stud bolt cycle fastening device is used for stud bolt fastening in municipal engineering, including but not limited to the installation and disassembly of valves involved in water supply pipelines. The stud bolt cycle fastening device comprises a main rod 5, a first support rod, a second support rod 6, and a two-way ratchet head connected to the ends of the first support rod and the second support rod 6 respectively, and the two two-way ratchet heads are respectively provided with forward and reverse paddles 2, at least one of the first support rod and the second support rod 6 is hinged to the main rod 5, and the two two-way ratchet heads are coaxial when the stud bolt is screwed.

[0018] The stud bolt cycle tightening device comprises a main rod 5, a first support rod and a second support rod 6, wherein the first support rod and the second support rod 6 are respectively provided with a bidirectional ratchet head, and one of the first support rod and the second support rod 6 can be hinged relative to the main rod 5, so that the two bidirectional ratchet heads are coaxial when the stud bolt is screwed, thereby achieving the tightening of the stud bolt. The utility model changes the form of multiple tools and multiple people's cooperation when the traditional tightening wrench is used to tighten the stud bolt, and enhances the combination of components and accessories on the basis of the traditional tightening wrench. It can be disassembled and combined, and is suitable for the installation of nuts and bolts in various scenarios, saving manpower, effort and time, and ensuring the relative tightening depth equivalence of the nuts in the process of tightening the nuts, and avoiding the hidden cracking hidden danger caused by the excessive relative rotation stress of a single nut.

[0019] In addition, the present stud bolt cyclic tightening device has the following advantages: (1) reducing the combination of tools such as wrenches when tightening stud bolts, thereby simplifying the installation process; (2) reducing the coordination of personnel during stud bolt installation; (3) improving the installation accuracy of stud bolts; (4) ensuring the installation torque of stud bolts; (5) improving the applicability of stud bolt installation in narrow spaces, etc.

[0020] The first support rod comprises a first rod body 4 and a second rod body 3. One end of the first rod body 4 is hinged to the main rod 5, and the other end is hinged to the second rod body 3. The free end of the second rod body 3 is provided with a first bidirectional ratchet head 1. In this embodiment, the first rod body 4 and the second rod body 3 are both straight rods, and the main rod 5, the first support rod, and the second support rod 6 are Y-shaped as a whole. Specifically, a clearance notch is provided on the main rod 5, and one end of the first rod body 4 is hinged at the clearance notch.

[0021] The second support rod 6 is slidably connected to the end of the main rod 5, and a second bidirectional ratchet head 7 is arranged at the end of the second support rod 6. In this embodiment, the second support rod 6 is sleeved on the main rod 5 and can be fixed relative to the main rod 5 after sliding on the main rod 5 to a position.

[0022] The stud bolt cyclic tightening device is composed of two bidirectional ratchet heads and a Y-shaped wrench handle. The Y-shaped handle is divided into two support rods and one main rod 5. The upper support rod is hinged with the rod bodies at both ends so that it can move in the vertical direction. The tail of the support rod and the middle of the main rod 5 are hinged and fixed. The front of the main rod 5 is sleeved with the second support rod 6 to ensure that the second support rod 6 can slide horizontally. During use, by pushing and pulling the second support rod 6 and pulling the first support rod up and down, the bidirectional ratchet head is inserted into the two nuts of the stud bolt. By turning the forward and reverse paddles 2 of the ratchet, the ratchet at the end of the first support rod is adjusted to the tightening direction, and the ratchet on the second support rod 6 is adjusted to the opposite direction of the upper part. When tightening, the main rod 5 of the device is cyclically pulled left and right, and the upper and lower nuts will be cyclically tightened. In the process of tightening the two nuts, the distance between them will become smaller. The first support rod and the second support rod 6 of the device can be adaptive through the form of hinge and sleeve connection to ensure that the two support rods are always parallel.

[0023] The utility model is based on the East Line Project of the South-to-North Water Diversion Supporting Project of "Four Counties and One District" in Xinxiang City. In this project, there are many water supply pipeline valves to be installed, including the installation of metal structural accessories such as drain valves, control valves, and air valves, among which stud bolts are installed more frequently. A stud bolt cycle tightening device speeds up the speed and accuracy of valve installation during the construction process, improves the quality of valve installation, and avoids the probability of hidden cracks in nuts during tightening to a certain extent, which has certain innovation and economic value.

[0024] Finally, it should be noted that, in this article, relational terms such as first and second, etc. 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. Moreover, 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 process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0025] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A stud bolt cyclic fastening device, characterized in that: The invention comprises a main rod (5), a first support rod, a second support rod (6), and a bidirectional ratchet head respectively connected to the ends of the first support rod and the second support rod (6), wherein the two bidirectional ratchet heads are respectively provided with forward and reverse paddles (2), and at least one of the first support rod and the second support rod (6) is hinged to the main rod (5), and the two bidirectional ratchet heads are coaxial when the stud bolt is screwed.

2. The stud bolt cyclic fastening device according to claim 1, characterized in that: The first support rod comprises a first rod body (4) and a second rod body (3); one end of the first rod body (4) is hinged to the main rod (5) and the other end is hinged to the second rod body (3); the free end of the second rod body (3) is provided with the bidirectional ratchet head.

3. The stud bolt cycle fastening device according to claim 2, characterized in that: The first rod body (4) and the second rod body (3) are both straight rods.

4. The stud bolt cyclic fastening device according to claim 2, characterized in that: The main rod (5) is provided with a position-avoiding notch, and one end of the first rod body (4) is hinged at the position-avoiding notch.

5. The stud bolt cyclic fastening device according to any one of claims 1 to 4, characterized in that: The second support rod (6) is slidably connected to the end of the main rod (5), and the bidirectional ratchet head is provided at the end of the second support rod (6).

6. The stud bolt cycle fastening device according to claim 5, characterized in that: The second support rod (6) is sleeved on the main rod (5) and can be fixed relative to the main rod (5) after sliding on the main rod (5) to a position.

7. The stud bolt cyclic fastening device according to claim 5, characterized in that: The main rod (5), the first support rod and the second support rod (6) are Y-shaped as a whole.

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