Shearing-resistant small-countersunk light titanium alloy high-locking bolt

Abstract

The utility model relates to the related technical field of bolts, and discloses an anti-shearing small-countersunk light titanium alloy high-locking bolt which comprises a bolt rod body and a bolt handle, an anti-skid pad is installed at the joint of the bolt handle and the bolt rod body, a high-locking nut is connected to the outer portion of the bolt rod body in a threaded mode, and a limiting assembly is arranged at the bottom of the high-locking nut. The limiting assembly is used for self-locking the high-locking nut outside the bolt rod body, the top of the bolt handle is provided with a protruding assembly, the protruding assembly is used for fixing the bolt rod body outside a mounting component through a special pulling and screwing tool, the connecting assembly comprises a threaded ring, and a threaded groove is formed in the outer portion of the connecting cylinder. According to the utility model, by rotating the rotating ring, the tightening ring applies force to the clinging plate, so that the clinging plate is tightly attached to the bolt rod body, the friction force is greatly increased, meanwhile, the limiting block abuts against the bolt rod body, the axial displacement of the nut is strictly limited, the stability of installation and connection with components is guaranteed, and the overall fixity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt relevant technical field especially relates to anti -shear type small countersunk head light -duty titanium alloy high lock bolt. BACKGROUND

[0002] In the era of today's industrial development, many fields such as equipment manufacturing, automobile industry etc., the performance bolt as the most basic and key connecting element of mechanical connecting component, its fastening reliability, installation convenience is directly related to the running safety and efficiency of the whole equipment or structure. Whether high-speed train is on the track and copes with frequent vibration, or precision instrument ensures accurate assembly in laboratory environment, it cannot do without high-quality bolt to provide stable connection guarantee.

[0003] At present, part bolt nut connection mode relies on thread friction force and keeps fastening, in strong vibration, alternating load environment, nut is easy to loosen and fall off, in addition, common bolt in the installation process, multiple dependences general spanner, however in the operation process, spanner is easy to slip off, and also easy to damage bolt and surrounding parts, however, in use, bolt nut is difficult to maintain fastening state for a long time, and then cannot adapt to modern industrial high -efficient development. SUMMARY

[0004] In order to make up for the above insufficient, the utility model provides anti -shear type small countersunk head light -duty titanium alloy high lock bolt, aims at improving the problem that bolt in the installation process in prior art, multiple dependences general spanner, however in the operation process, spanner is easy to slip off, and also easy to damage bolt and surrounding parts.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: anti -shear type small countersunk head light -duty titanium alloy high lock bolt, including bolt shank and bolt handle, the connecting place of bolt handle and bolt shank is equipped with antiskid pad, the high lock nut is connected with the outside thread of bolt shank, the bottom of high lock nut is provided with limiting assembly, limiting assembly is used for locking high lock nut on the outside of bolt shank, the top of bolt handle is provided with convex assembly, convex assembly is used for special wrench tool and is fixed with bolt shank outside installation part;

[0006] The limiting assembly includes a connecting barrel, the connecting barrel is fixedly connected to the bottom of the high lock nut, the side of the connecting barrel away from the high lock nut is fixedly connected with a close plate, the close plate is externally provided with a swivel ring, the bottom of the swivel ring away from the close plate is fixedly connected with a tightening ring, and the connecting barrel is externally provided with a connecting assembly.

[0007] Further description of the above technical scheme:

[0008] The connecting assembly includes a threaded ring, the connecting barrel is externally provided with a threaded groove, and the swivel ring is threadedly connected in the threaded groove through the threaded ring.

[0009] As a further description of the above technical solutions:

[0010] The protruding assembly comprises a circular ring fixedly connected at the top of the bolt shank, a limiting groove is formed in the interior of the circular ring, and a hollow groove is formed in the inner bottom wall of the limiting groove.

[0011] As a further description of the above technical solutions:

[0012] The tightening ring is used for tightly attaching the close-fitting plate to the outer portion of the bolt shank.

[0013] As a further description of the above technical solutions:

[0014] The close-fitting plate is fixedly connected with a limiting block on the side away from the tightening ring, and the limiting block abuts against the outer portion of the bolt shank.

[0015] As a further description of the above technical solutions:

[0016] The high-lock nut is provided with a gasket at the top.

[0017] As a further description of the above technical solutions:

[0018] The radius of the circular ring is smaller than the radius of the bolt shank.

[0019] As a further description of the above technical solutions:

[0020] The high-lock nut is externally provided with a plurality of strip-shaped grooves.

[0021] The utility model has the advantages of the following beneficial effects:

[0022] 1. In the utility model, the tightening ring exerts force on the close-fitting plate by rotating the rotating ring, so that the close-fitting plate is tightly attached to the bolt shank, the friction force is greatly increased, the limiting block abuts against the bolt shank, the axial displacement of the nut is strictly limited, the stability of the installation and connection with the components is ensured, and the overall fixing property is improved.

[0023] 2. In the utility model, the special wrench tool is embedded in the limiting groove and the hollow groove in the circular ring, the risk of slipping of the tool during the screwing of the bolt is effectively avoided, and the bolt thread is ensured to be stationary during the tightening operation of the nut. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The utility model provides a three-dimensional schematic view of a shear-resistant small countersunk head light titanium alloy high-lock bolt;

[0025] Figure 2 The utility model provides a structure schematic view of a bolt shank of a shear-resistant small countersunk head light titanium alloy high-lock bolt;

[0026] Figure 3 The utility model discloses a section view of the close board of the small head light type titanium alloy high lock bolt of shear resistance.

[0027] Figure 4 The utility model discloses a structure diagram of the circular ring of the small head light type titanium alloy high lock bolt of shear resistance.

[0028] Legend:

[0029] 1, bolt shank, 2, bolt handle, 3, non-slip pad, 4, high lock nut, 5, limiting assembly, 51, connecting barrel, 52, close board, 53, rotating ring, 54, tightening ring, 55, thread groove, 56, thread ring, 57, limiting block, 6, convex assembly, 61, circular ring, 62, limiting groove, 63, hollow groove, 7, gasket, 8, strip groove. Specific implementation

[0030] The utility model discloses an embodiment of the utility model will be clearly and completely described below in the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, instead of all the embodiment. Based on the embodiment in the utility model, all other embodiments that the ordinary skill in the art obtains without making creative labor belong to the range of protection of the utility model.

[0031] Reference Figure 1 , Figure 2 And Figure 3 An embodiment provided by the utility model: the small head light type titanium alloy high lock bolt of shear resistance, including bolt shank 1 and bolt handle 2, the connecting place of bolt handle 2 and bolt shank 1 is equipped with non-slip pad 3, and high lock nut 4 is connected with the outside screw of bolt shank 1, and the bottom of high lock nut 4 is provided with limiting assembly 5, and limiting assembly 5 is used to lock high lock nut 4 in the outside of bolt shank 1, and the top of bolt handle 2 is provided with convex assembly 6, and convex assembly 6 is used to special wrench tool and is fixed in the outside of installation part with bolt shank 1;

[0032] Limiting assembly 5 includes connecting barrel 51, and connecting barrel 51 is fixedly connected at the bottom of high lock nut 4, and one side of connecting barrel 51 away from high lock nut 4 is fixedly connected with close board 52, and in the process of tightening, can more comprehensively contact with bolt shank 1, increase friction. Rotating ring 53 is installed at the outside of close board 52, and is rotationally connected with the thread groove 55 of connecting barrel 51 through the thread ring 56, to provide power for the movement of tightening ring 54. The bottom of rotating ring 53 away from close board 52 is fixedly connected with tightening ring 54, and tightening ring 54 is gradually close to close board 52 under the driving of rotating ring 53, and applies the inward tightening force to close board 52.

[0033] The connecting barrel 51 is externally provided with a connecting assembly, the connecting assembly comprises a threaded ring 56, the connecting barrel 51 is externally provided with a threaded groove 55, the rotating ring 53 is threadedly connected inside the threaded groove 55 through the threaded ring 56, the threaded connection mode converts the rotation of the rotating ring 53 into the linear movement of the tightening ring 54, the operator rotates the rotating ring 53, and the accurate force exertion on the close plate 52 can be realized. The tightening ring 54 is used for attaching the close plate 52 to the outside of the bolt shank 1, effectively preventing the high-lock nut 4 from being loosened due to vibration and impact. The side, away from the tightening ring 54, of the close plate 52 is fixedly connected with a limiting block 57, the limiting block 57 abuts against the outside of the bolt shank 1, so that the limiting block 57 limits the axial displacement of the bolt shank 1.

[0034] The high-lock nut 4 is provided with a gasket 7 at the top, which effectively prevents the surface of the component from being damaged and scratched when the high-lock nut 4 is tightened. The high-lock nut 4 is externally provided with a plurality of strip-shaped grooves 8, which facilitate the use of a special wrench to fix the high-lock nut 4, thereby tightening the bolt shank 1.

[0035] Referring to Figure 1 and Figure 4 , the protruding assembly 6 comprises a circular ring 61 fixedly connected to the top of the bolt shank 2, a limiting groove 62 is formed in the inside of the circular ring 61, a hollow groove 63 is formed in the inner bottom wall of the limiting groove 62, the radius of the circular ring 61 is smaller than that of the bolt shank 2, and the special wrench can be accurately inserted through the limiting groove 62 and the hollow groove 63 in the circular ring 61, which effectively prevents the wrench from rotating and falling during operation, and facilitates the operator to safely complete the bolt fastening operation.

[0036] Working principle: when installing components, the bolt shank 1 and the bolt shank 2 are used to install and fasten the components, first, the bolt shank 1 is aligned with the mounting hole of the component to be installed, the bolt shank 1 passes through the mounting hole smoothly, then the circular ring 61 at the top of the bolt shank 2 is used, the special wrench is inserted into the limiting groove 62 and the hollow groove 63, so that the circular ring 61 is tightly clamped, the bolt shank 1 can be fixed on the mounting component, at the same time, the high-lock nut 4 is rotated from one end of the bolt shank 1, and moves towards the mounting component along the thread. At this time, with the rotation of the high-lock nut 4, the connecting barrel 51 moves together, after the high-lock nut 4 fixes the bolt shank 1 to the mounting component, the rotating ring 53 is rotated along the threaded groove 55 outside the connecting barrel 51, and the tightening ring 54 drives the close plate 52 to move close, so as to apply an inward tightening force to the close plate 52, so that the close plate 52 is attached to the outside of the bolt shank 1, and the limiting block 57 tightly abuts against the bolt shank 1, ensuring that the high-lock nut 4 is self-locked on the bolt shank 1.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A shear-type small head light weight titanium alloy high lock bolt comprising a bolt shank (1) and a bolt handle (2), characterized in that: The connecting part of the bolt shank (2) and the bolt stem (1) is provided with an anti-skid pad (3), the bolt stem (1) is externally threadedly connected with a high-lock nut (4), the bottom of the high-lock nut (4) is provided with a limiting assembly (5) for self-locking the high-lock nut (4) outside the bolt stem (1), and the top of the bolt shank (2) is provided with a protruding assembly (6) for fixing the bolt stem (1) outside the mounting part by using a special wrenching tool. The limiting assembly (5) comprises a connecting cylinder (51) fixedly connected to the bottom of the high-lock nut (4), one side of the connecting cylinder (51) away from the high-lock nut (4) is fixedly connected with a close plate (52), the outside of the close plate (52) is provided with a swivel ring (53), the bottom of the swivel ring (53) away from the close plate (52) is fixedly connected with a tightening ring (54), and the outside of the connecting cylinder (51) is provided with a connecting assembly.

2. The shear-type small head light weight titanium alloy high lock bolt according to claim 1, characterized in that: The connecting assembly comprises a threaded ring (56), the outside of the connecting cylinder (51) is provided with a threaded groove (55), and the swivel ring (53) is threadedly connected inside the threaded groove (55) through the threaded ring (56).

3. The shear-type small head light weight titanium alloy high lock bolt according to claim 1, characterized in that: The protruding assembly (6) comprises a circular ring (61) fixedly connected to the top of the bolt shank (2), the inside of the circular ring (61) is provided with a limiting groove (62), and the inner bottom wall of the limiting groove (62) is provided with a hollow groove (63).

4. The shear-type small head light weight titanium alloy high lock bolt according to claim 1, characterized in that: The tightening ring (54) is used for attaching the close plate (52) to the outside of the bolt stem (1).

5. The shear-type small head light weight titanium alloy high lock bolt according to claim 1, characterized in that: The close plate (52) is fixedly connected with a limiting block (57) on the side away from the tightening ring (54), and the limiting block (57) abuts against the outside of the bolt stem (1).

6. The shear-type small head light weight titanium alloy high lock bolt according to claim 1, characterized in that: The high-lock nut (4) is provided with a gasket (7) on the top.

7. The shear-type shallow head light weight titanium alloy high lock bolt according to claim 3, characterized in that: The radius of the circular ring (61) is smaller than the radius of the bolt shank (2).

8. The shear-type small head light weight titanium alloy high lock bolt according to claim 1, characterized in that: The high-lock nut (4) is externally provided with a plurality of strip-shaped grooves (8).

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