Torque-fixed bolt

Abstract

The utility model provides a bolt with fixed torque, which relates to the technical field of fasteners, and comprises a round nut and a connecting mechanism, the bottom end of the round nut is provided with the connecting mechanism, through the arrangement of the connecting mechanism, when the bolt is used, the bolt is connected with a fastener through a mounting hole, so that the stability and the reliability of assembly are ensured, and the assembly efficiency is improved. Through the cooperation of the sealing washer and the gasket, the pollution of the connecting part of the connecting piece and the bolt is effectively prevented, the service life of used equipment is prolonged, through the cooperation of the screw rod and the thread, the mounting and connecting functions of the bolt are provided, then correct mounting of the bolt is ensured, and through the arrangement of the auxiliary mechanism, during use, through the cooperation of the elastic washer and the nut, the bolt can be firmly fixed. According to the utility model, the connection stability and reliability are improved, the looseness or failure caused by external force or vibration is prevented, and the service life of the bolt is prolonged, the maintenance cost is reduced and the reliability and durability of the system are improved through the matching of the aluminum oxide coating and the hard coating.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a torque-fixed bolt. Background Art

[0002] A torque-fixed bolt is often referred to as a preloaded bolt or preloaded bolt assembly. This bolt design is intended to apply a certain preload or preload force during assembly to ensure that it will not loosen during use or the possibility of loosening is greatly reduced. This preload force is achieved by applying a certain torque.

[0003] After searching, the patent number "CN107061935A" mentioned in the text that "the present invention relates to a shield-type anchor bolt for fixed torque fixing, including an upper sleeve, a lower sleeve, a rectangular protrusion arranged between the upper sleeve and the lower sleeve, and a screw inserted and fixed in the upper sleeve, the lower sleeve and the rectangular protrusion. The top of the screw is provided with a fixed torque unit and a second nut for fixing the device. The fixed torque unit is arranged under the second nut and fixed to the screw. Compared with the prior art, the present invention adopts a screw, the outer part of the screw is sleeved with a sleeve, and the sleeve is connected through the rectangular protrusion to form an integrated structure. The fixed torque device makes it possible to apply The bolt pre-tightening torque value is accurate. In this way, the present invention has better fixing strength when fixing heavy-duty and heavy-duty mechanical equipment, can meet the stringent requirements of high torque and high strength, and can maintain higher reliability in long-term use, avoid loosening and breaking, and ensure the safe production of heavy-duty and heavy-duty mechanical equipment. The device can maintain higher reliability in long-term use, avoid loosening and breaking, but the bolt has insufficient sealing during use, which makes the connection part easy to be contaminated and shortens the service life. At the same time, the protection of the bolt surface is weak, resulting in the need for continuous maintenance.

[0004] Therefore, we provide a torque-fixed bolt to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a torque-fixed bolt to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a torque-fixed bolt, comprising a round nut and a connecting mechanism, wherein the bottom end of the round nut is provided with the connecting mechanism;

[0007] The connecting mechanism comprises a connecting component, a sealing component and a mounting component. The bottom end of the round nut is installed with the connecting component, the inner side of the connecting component is installed with the sealing component, and the inner side of the sealing component is installed with the mounting component.

[0008] Preferably, the connecting assembly comprises a coupling member and a mounting hole, the coupling member is mounted on the bottom end of the round nut, and the mounting hole is formed on the surface of the coupling member.

[0009] Preferably, the sealing assembly comprises a sealing gasket and a gasket, the inner side of the mounting hole is fixedly connected with the sealing gasket, and the bottom end of the sealing gasket is installed with the gasket.

[0010] Preferably, the installation assembly includes a screw and a thread, the screw is installed on the inner side of the sealing gasket, and the surface of the screw is provided with a thread.

[0011] Preferably, an auxiliary mechanism is installed at the bottom end of the screw rod, and the auxiliary mechanism includes a fixing component and a protective component. The fixing component is installed at the bottom end of the screw rod, and the protective component is installed on the surface of the thread.

[0012] Preferably, the fixing assembly comprises an elastic washer and a nut, the bottom end of the screw rod is provided with an elastic washer, and the outer surface of the elastic washer is provided with a nut.

[0013] Preferably, the protective component includes an aluminum oxide coating and a hard coating, the surface of the thread is provided with the aluminum oxide coating, and the surface of the aluminum oxide coating is provided with the hard coating.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the setting of the connection mechanism, when in use, the connection between the bolt and the joint is provided through the mounting hole, thereby ensuring the stability and reliability of the assembly. Through the cooperation of the sealing gasket and the gasket, the contamination of the joint and the bolt connection part is effectively prevented, and the life of the equipment is extended. Through the cooperation of the screw and the thread, the installation and connection functions of the bolt are provided, thereby ensuring its correct installation.

[0016] 2. Through the setting of auxiliary mechanisms, when in use, the cooperation of elastic washers and nuts increases the stability and reliability of the connection, preventing loosening or failure caused by external forces or vibrations. Through the cooperation of alumina coating and hard coating, the service life of the bolts is increased, the maintenance cost is reduced, and the reliability and durability of the system are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall side structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0020] Figure 4 It is a schematic diagram of the auxiliary mechanism structure of the utility model.

[0021] Numbers in the figure: 1. round nut; 2. connecting mechanism; 21. connecting assembly; 211. joint; 212. mounting hole; 22. sealing assembly; 221. sealing gasket; 222. gasket; 23. mounting assembly; 231. screw; 232. thread; 3. auxiliary mechanism; 31. fixing assembly; 311. elastic gasket; 312. nut; 32. protective assembly; 321. alumina coating; 322. hard coating. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-3 As shown, the utility model provides an embodiment: a torque-fixed bolt, comprising a round nut 1 and a connecting mechanism 2, wherein the connecting mechanism 2 is installed at the bottom end of the round nut 1;

[0025] The connecting mechanism 2 comprises a connecting component 21 , a sealing component 22 and a mounting component 23 . The connecting component 21 is mounted on the bottom end of the round nut 1 , the sealing component 22 is mounted on the inner side of the connecting component 21 , and the mounting component 23 is mounted on the inner side of the sealing component 22 .

[0026] Furthermore, the connecting component 21 includes a coupling 211 and a mounting hole 212. The coupling 211 is installed at the bottom end of the round nut 1, and the mounting hole 212 is opened on the surface of the coupling 211. Through the setting of the connecting component 21, a connection between the bolt and the coupling 211 is provided, thereby ensuring the stability and reliability of the assembly.

[0027] Furthermore, the sealing assembly 22 includes a sealing gasket 221 and a gasket 222. The sealing gasket 221 is fixedly connected to the inner side of the mounting hole 212, and the gasket 222 is installed at the bottom end of the sealing gasket 221. The sealing assembly 22 is provided to provide sealing, thereby effectively preventing contamination of the joint 211 and the bolt connection portion, thereby extending the life of the equipment.

[0028] Furthermore, the installation component 23 includes a screw 231 and a thread 232. The screw 231 is installed on the inner side of the sealing gasket 221, and the surface of the screw 231 is provided with a thread 232. Through the setting of the installation component 23, the installation and connection functions of the bolt are provided, thereby ensuring its correct installation.

[0029] Embodiment 2

[0030] See also Figure 1 , Figure 2 and Figure 4 As shown, in contrast to Example 1, as another implementation of the utility model, an auxiliary mechanism 3 is installed at the bottom end of the screw rod 231, and the auxiliary mechanism 3 includes a fixing component 31 and a protective component 32. The fixing component 31 is installed at the bottom end of the screw rod 231, and the protective component 32 is installed on the surface of the thread 232. Through the provision of the auxiliary mechanism 3, the stability of the bolt connection is ensured, and the service life of the bolt is increased.

[0031] Furthermore, the fixing component 31 includes an elastic washer 311 and a nut 312. The elastic washer 311 is installed at the bottom end of the screw rod 231, and the nut 312 is installed on the outer surface of the elastic washer 311. Through the setting of the fixing component 31, the stability and reliability of the connection are increased, and loosening or failure caused by external force or vibration is prevented.

[0032] Furthermore, the protective component 32 includes an aluminum oxide coating 321 and a hard coating 322. The surface of the thread 232 is installed with the aluminum oxide coating 321, and the surface of the aluminum oxide coating 321 is installed with the hard coating 322. Through the provision of the protective component 32, the service life of the bolt is increased, the maintenance cost is reduced, and the reliability and durability of the system are improved.

[0033] Working principle, first, a torque-fixed bolt is put into the working position. When in use, the first step is to place multiple coupling parts 211 in the specified position and align the mounting holes 212 of multiple coupling parts 211. The second step is to insert the screw rod 231 through the mounting hole 212 and put the gasket 222 on the screw rod 231. The third step is to move the gasket 222 to make it tightly connected with the bottom end of the coupling part 211, and provide additional sealing protection through the sealing gasket 221. The fourth step is to tighten the nut 312, and the nut 312 drives the elastic gasket 311 to move to ensure the firm connection of the bolt. The fifth step is to protect the bolt surface from corrosion through the aluminum oxide coating 321, and reduce the possibility of wear on the bolt surface through the hard coating 322. In this way, the use process of a torque-fixed bolt is completed.

Claims

1. A torque-fixed bolt, comprising a round nut (1) and a connecting mechanism (2), characterized in that: A connecting mechanism (2) is installed at the bottom end of the round nut (1); The connecting mechanism (2) comprises a connecting component (21), a sealing component (22) and a mounting component (23); the connecting component (21) is mounted on the bottom end of the round nut (1); the sealing component (22) is mounted on the inner side of the connecting component (21); the mounting component (23) is mounted on the inner side of the sealing component (22); the connecting component (21) comprises a joint piece (211) and a mounting hole (212); the connecting component (211) is mounted on the bottom end of the round nut (1); the mounting hole (212) is formed on the surface of the joint piece (211); the sealing component (22) comprises a sealing gasket (221) and a washer (222); the sealing gasket (221) is fixedly connected to the inner side of the mounting hole (212); the bottom end of the sealing gasket (221) is mounted with the washer (222); 222), the installation component (23) comprises a screw (231) and a thread (232), the screw (231) is installed on the inner side of the sealing gasket (221), the surface of the screw (231) is provided with a thread (232), the bottom end of the screw (231) is installed with an auxiliary mechanism (3), the auxiliary mechanism (3) comprises a fixing component (31) and a protective component (32), the bottom end of the screw (231) is installed with a fixing component (31), the surface of the thread (232) is installed with a protective component (32), the protective component (32) comprises an aluminum oxide coating (321) and a hard coating (322), the surface of the thread (232) is installed with an aluminum oxide coating (321), and the surface of the aluminum oxide coating (321) is installed with a hard coating (322).

2. A torque-fixed bolt according to claim 1, characterized in that: The fixing assembly (31) comprises an elastic washer (311) and a nut (312); the bottom end of the screw rod (231) is installed with the elastic washer (311), and the outer surface of the elastic washer (311) is installed with the nut (312).

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