Novel anti-loose connecting structure for stud and nut

Abstract

The utility model discloses a novel anti-loosing connecting structure of a stud bolt and a nut, which relates to the technical field of bolts and comprises a main rod, two ends of the main rod are both fixedly connected with threaded rods, the two threaded rods are both sleeved with nuts in a threaded mode, and two ends of the main rod are both provided with locking anti-loosing mechanisms matched with the nuts. A threaded hole is formed in the nut in a penetrating mode, and an unlocking mechanism is arranged in the threaded hole. The nut can be locked, so that the nut cannot rotate in the unscrewing direction, the anti-loosening effect is achieved, meanwhile, the unlocking mechanism is arranged, the nut can be conveniently and normally unscrewed and taken down when needed, and use is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt technical field especially relates to a new -type double -end bolt nut's anti -loose connection structure. BACKGROUND

[0002] Double -end bolt also called double -end screw or double -end stud is used for the fixed link function of connecting machinery, and the double -end bolt has threads at both ends, and is generally used in mine machinery, bridges, large -span steel structures and large -scale buildings, etc., one end is screwed into the main body during use, and the other end is provided with a nut after the accessories are installed.

[0003] In actual work, the external load has vibration, change, material high temperature creep etc. Therefore, the double -end bolt must be prevented from loosening, otherwise it will affect normal work and cause accidents. SUMMARY

[0004] The utility model discloses a new -type double -end bolt nut's anti -loose connection structure which solves the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A new -type double -end bolt nut's anti -loose connection structure, including the main rod, the both ends of main rod are all fixedly connected with threaded rod, two threaded rod all are threadedly connected with the nut, the both ends of main rod are equipped with the locking anti -loose mechanism that cooperates with nut, the nut is equipped with the threaded hole on the penetration, the inside of threaded hole is equipped with the unlocking mechanism.

[0007] As a further improvement of the utility model, the locking anti -loose mechanism includes the anti -loose ring of slidingly sleeving on the outside of threaded rod, the side wall of anti -loose ring is close to nut and is uniformly equipped with the clamping groove along the circumference of anti -loose ring, the side wall of anti -loose ring is away from nut and is fixedly connected with two movable rods, the end of main rod is equipped with two movable grooves that cooperate with movable rod, two movable rods are respectively slidingly inserted in the inside of two movable grooves, the inside of two movable grooves is equipped with spring, one end of spring is fixed on the inner wall of movable groove, the other end of spring is fixed on the end of movable rod, the side wall of nut is close to anti -loose ring and is fixedly connected with four clamping blocks that cooperate with clamping groove, four clamping blocks are equidistantly arranged along the circumference of nut.

[0008] As a further improvement of the utility model, the unlocking mechanism comprises an unlocking rod inserted into the threaded hole and screwed with the threaded hole, one end of the unlocking rod close to the lock washer is fixedly connected with a stopper, and the other end of the unlocking rod away from the lock washer is fixedly connected with a rotating block.

[0009] As a further improvement of the utility model, the clamping block and the nut are integrally formed.

[0010] As a further improvement of the utility model, the stopper and the unlocking rod are integrally formed, and the stopper is in a semispherical structure.

[0011] As a further improvement of the utility model, the surface of the rotating block is provided with a groove, and the groove is in a cross-shaped structure.

[0012] The utility model has the advantages of:

[0013] By setting the locking lock washer mechanism, after the nut is screwed on the threaded rod, the nut will abut against the lock washer, the spring is acted on the lock washer through the elastic force, the clamping block can be clamped into the clamping groove, when the nut is rotated in the tightening direction, the lock washer has a moving space due to the elastic force of the spring, at this time, the clamping block will slide on the lock washer and then be clamped into the clamping groove again, the nut is locked through the clamping of the clamping block and the clamping groove, the nut cannot be rotated in the loosening direction, and the effect of preventing loosening is realized.

[0014] By setting the unlocking mechanism, when the nut needs to be loosened and removed, the unlocking rod is first rotated, the unlocking rod is moved due to the screwing with the threaded hole, the stopper is moved to extrude and press the lock washer, the lock washer is not attached to the nut, the clamping block is not clamped into the clamping groove, at this time, the nut can be normally loosened and removed.

[0015] The utility model can lock the nut, the nut cannot be rotated in the loosening direction, the effect of preventing loosening is realized, the unlocking mechanism is provided, the nut can be conveniently loosened and removed when needed, and the utility model is convenient to use. ACCURACY OF DRAWINGS

[0016] Figure 1 The utility model provides a kind of structure schematic view of the anti-loose connection structure of novel double-end bolt nut;

[0017] Figure 2 The utility model provides a kind of structure schematic view of the anti-loose connection structure of novel double-end bolt nut;

[0018] Figure 3 The utility model provides a kind of structure schematic view of the anti-loose connection structure of novel double-end bolt nut;

[0019] Figure 4 The utility model provides a structure diagram of locking and anti-loosening mechanism of novel double-end bolt and nut anti-loosening connecting structure;

[0020] Figure 5 The utility model provides a structure diagram of nut, clamping block and threaded hole of novel double-end bolt and nut anti-loosening connecting structure.

[0021] In the drawing: 1 main rod, 2 threaded rod, 3 movable rod, 4 nut, 5 unlocking rod, 6 movable slot, 7 abutting block, 8 rotating block, 9 recess, 10 spring, 11 anti-loosening abutting ring, 12 clamping slot, 13 clamping block, 14 threaded hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] Referring to Figures 1-5 A novel double-end bolt and nut anti-loosening connecting structure, including main rod 1, both ends of main rod 1 are fixedly connected with threaded rod 2, two threaded rods 2 are all threadedly sleeved with nut 4, both ends of main rod 1 are equipped with the locking and anti-loosening mechanism that cooperates with nut 4, the threaded hole 14 is passed through on nut 4, and the inside of threaded hole 14 is equipped with unlocking mechanism.

[0024] In the utility model, the locking and anti-loosening mechanism includes the anti-loosening abutting ring 11 that is slidably sleeved on the outside of threaded rod 2, the side wall of anti-loosening abutting ring 11 is uniformly provided with clamping slot 12 along the circumference of anti-loosening abutting ring 11, the side wall of anti-loosening abutting ring 11 is fixedly connected with two movable rods 3, the end of main rod 1 is equipped with two movable slots 6 that cooperate with movable rod 3, two movable rods 3 are slidably inserted in the inside of two movable slots 6, the inside of two movable slots 6 is equipped with spring 10, one end of spring 10 is fixed on the inner wall of movable slot 6, the other end of spring 10 is fixed on the end of movable rod 3, the side wall of nut 4 is fixedly connected with four clamping blocks 13 that cooperate with clamping slot 12, four clamping blocks 13 are equidistantly arranged along the circumference of nut 4, and clamping block 13 is integrally formed with nut 4.

[0025] The unlocking mechanism comprises an unlocking rod 5 inserted into and screwed with the threaded hole 14, the unlocking rod 5 is fixedly connected with a block 7 close to one end of the lock ring 11, the unlocking rod 5 is fixedly connected with a rotating block 8 away from the lock ring 11, the rotating block 8 is a hexagonal structure and can be driven to rotate by a wrench, the block 7 is integrally formed with the unlocking rod 5 and is a hemispherical structure, so that the block 7 cannot be clamped into the clamping groove 12, and the surface of the rotating block 8 is provided with a groove 9 which is a cross-shaped structure, so that a screwdriver can be inserted into the groove 9 to drive the rotating block 8 to rotate.

[0026] When the utility model is used, the staff inserts the threaded rod 2 into the hole of the equipment or device to be connected, then screws the nut 4 on the threaded rod 2, gradually tightens the nut 4, the nut 4 abuts against the lock ring 11, the spring 10 acts on the lock ring 11 by the elastic force, the clamping block 13 can be clamped into the clamping groove 12, when the nut 4 is rotated in the tightening direction, the lock ring 11 has a moving space due to the elastic force of the spring 10, at this time, the clamping block 13 slides on the lock ring 11 and is clamped into the clamping groove 12 again, the nut 4 is locked by the clamping of the clamping block 13 and the clamping groove 12, so that the nut 4 cannot be rotated in the loosening direction, the effect of preventing loosening is realized.

[0027] When the nut 4 needs to be loosened and removed, the unlocking rod 5 is rotated first, the unlocking rod 5 moves due to the screwing with the threaded hole 14, the block 7 moves to press and move the lock ring 11, so that the lock ring 11 does not abut against the nut 4, the clamping block 13 is not clamped into the clamping groove 12, at this time, the nut 4 can be normally loosened and removed.

[0028] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A new type of anti-loosening connection structure of stud bolts and nuts, characterized in that: The invention comprises a main rod (1), wherein both ends of the main rod (1) are fixedly connected to threaded rods (2), and nuts (4) are threadedly sleeved on the two threaded rods (2). Both ends of the main rod (1) are provided with a locking and anti-loosening mechanism cooperating with the nut (4), and a threaded hole (14) is penetrated through the nut (4), and an unlocking mechanism is provided inside the threaded hole (14).

2. A novel anti-loosening connection structure of stud bolts and nuts according to claim 1, characterized in that: The locking and anti-loosening mechanism comprises an anti-loosening ring (11) which is slidably sleeved on the outside of the threaded rod (2), and a clamping groove (12) is evenly provided on the side wall of the anti-loosening ring (11) close to the nut (4) along the circumference of the anti-loosening ring (11), and two movable rods (3) are fixedly connected on the side wall of the anti-loosening ring (11) away from the nut (4), and the end of the main rod (1) is provided with two movable grooves (6) which cooperate with the movable rods (3), and the two movable rods (3) are respectively slidably inserted into the inside of the two movable grooves (6), and a spring (10) is provided inside the two movable grooves (6), one end of the spring (10) is fixed on the inner wall of the movable groove (6), and the other end of the spring (10) is fixed on the end of the movable rod (3), and four clamping blocks (13) which cooperate with the clamping grooves (12) are fixedly connected on the side wall of the nut (4) close to the anti-loosening ring (11), and the four clamping blocks (13) are evenly spaced along the circumference of the nut (4).

3. A novel anti-loosening connection structure of stud bolt and nut according to claim 2, characterized in that: The unlocking mechanism comprises an unlocking rod (5) inserted into and screwed to the threaded hole (14), an end of the unlocking rod (5) close to the anti-loosening ring (11) is fixedly connected to a stop block (7), and an end of the unlocking rod (5) away from the anti-loosening ring (11) is fixedly connected to a rotating block (8).

4. A novel anti-loosening connection structure of stud bolts and nuts according to claim 2, characterized in that: The clamping block (13) and the nut (4) are integrally formed.

5. The novel anti-loosening connection structure of stud bolt and nut according to claim 3 is characterized in that: The stop block (7) and the unlocking rod (5) are integrally formed, and the stop block (7) is a hemispherical structure.

6. The novel anti-loosening connection structure of stud bolt and nut according to claim 3, characterized in that: A groove (9) is provided on the surface of the rotating block (8), and the groove (9) is a cross-shaped structure.

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