Thread anti-loose locking structure

Abstract

The utility model discloses a thread anti-loose locking structure which comprises a second hexagonal block, a second threaded hole is formed in the middle of the top of the second hexagonal block, a splayed groove is formed in the bottom of the second hexagonal block and communicated with the second threaded hole, and two protrusions are symmetrically fixed to the position, close to the second threaded hole, of the bottom of the second hexagonal block. The side wall of the second threaded hole is sleeved with a bolt, the bolt is matched with the second threaded hole, and a locking mechanism used for locking the bolt and the second hexagonal block is arranged at the top of the second hexagonal block. Through the design of the splayed grooves and the two protrusions, when the two protrusions make contact with the surface of an object, threads of the second threaded hole are tightened by shrinking the two splayed grooves, so that the preliminary locking and looseness prevention purpose is achieved, through the design of the locking mechanism, the friction force between the second hexagonal block and the bolt is enhanced, and the looseness prevention effect is improved. The connecting stability between the bolt and the second hexagonal block can be improved, and the loosening risk is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to thread technology field especially relates to a thread anti-loose locking structure. BACKGROUND

[0002] In modern mechanical design and engineering application, as a common connecting mode, thread connection is widely used in various equipment and structure, however, thread connection is easy to appear loose phenomenon when running for a long time or being influenced by external factors such as vibration, impact, this loose not only can influence the normal operation of equipment, but also can lead to security risks and economic losses, therefore a thread anti-loose locking structure is needed.

[0003] The traditional thread anti-loose locking structure usually adopts the mode that after the elastic washer is sleeved on the bolt, the nut is tightened, this method utilizes the elastic force of elastic washer to increase the friction force between the nut and bolt, thereby effectively preventing the loosening of nut, before the nut is screwed on the bolt, the elastic washer must be sleeved on the bolt, this additional step not only increases the installation time and labor intensity, but also may lead to improper operation in some cases, thereby influencing the stability and safety of connection, and, the elastic washer is easy to appear wear and fatigue after long time use, especially in the environment of high-frequency vibration or impact load, the elastic force is weakened, thereby losing the effective anti-loose function, this condition not only reduces the reliability of connection, but also may need frequent inspection and replacement, increases the maintenance cost and workload. SUMMARY

[0004] The utility model discloses a thread anti-loose locking structure that solves the shortcomings in the prior art.

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

[0006] A thread anti-loose locking structure, including second hexagonal block, the second hexagonal block top middle part is equipped with second thread hole, the second hexagonal block bottom is equipped with splayed slot, and splayed slot and second thread hole are communicated, two protrusions are fixed symmetrically in the second hexagonal block bottom near second thread hole, the second thread hole side wall is equipped with bolt, and bolt and second thread hole are adapted, the second hexagonal block top is provided with locking mechanism for locking bolt and second hexagonal block, the device is in the use process, through the design of splayed slot and two protrusions, when two protrusions contact with the surface of object, the thread of second thread hole is tightened by contracting two splayed slots, to reach the purpose of preliminary locking and preventing loose, through the design of locking mechanism, the friction force between second hexagonal block and bolt is enhanced, can improve the connection stability between bolt and second hexagonal block, further reduce the risk of loosening.

[0007] Preferably, the locking mechanism comprises an externally threaded pipe fixed to the top of the second hexagonal block, a plurality of notches are equidistantly arranged on the top of the externally threaded pipe, a first hexagonal block is sleeved on the outer sidewall of the externally threaded pipe, a first threaded hole is arranged in the middle of the top of the first hexagonal block and gradually reduces in diameter from bottom to top, the first hexagonal block is sleeved on the outer sidewall of the externally threaded pipe, and the first hexagonal block is rotated, so that the threads of the first threaded hole are tightened by the contraction of the plurality of notches, and the locking and anti-loosening purpose of the second hexagonal block is achieved again.

[0008] Preferably, four sliding grooves are arranged at the four corners of the bottom of the second hexagonal block, the four sliding grooves are all of the necked structure, four circular sliding blocks are slidably arranged on the inner sidewalls of the four sliding grooves, four vertical columns are fixed to the bottoms of the four circular sliding blocks, and four springs are arranged in the four sliding grooves, respectively above the four circular sliding blocks; when the two protrusions are in contact with the surface of an object, the four vertical columns drive the four circular sliding blocks to move upwards along the directions of the four sliding grooves, respectively, so that the four springs are in the compressed state; under the reaction of the four compressed springs, the four vertical columns are tightly attached to the surface of the object, and a vertical upward force is applied to the second hexagonal block to increase the friction between the second hexagonal block and the object, thereby further preventing loosening of the second hexagonal block, without the need for additional elastic washers on the bolt, simplifying the installation steps, reducing time and labor intensity, and improving the stability of the connection between the bolt and the second hexagonal block.

[0009] The utility model discloses the beneficial effects are:

[0010] 1. In the using process of the device, when the two protrusions are in contact with the surface of an object, the threads of the second threaded hole are tightened by the contraction of the two splayed grooves, and the preliminary locking and anti-loosening purpose is achieved.

[0011] 2. The design of the locking mechanism enhances the friction between the second hexagonal block and the bolt, improves the connection stability between the bolt and the second hexagonal block, and further reduces the risk of loosening.

[0012] 3. The design of the four vertical columns, four sliding grooves, four circular sliding blocks and four springs can effectively increase the friction between the second hexagonal block and the object, thereby further enhancing the anti-loosening effect, without the need for additional elastic washers during installation, simplifying the installation process, reducing the operation complexity and improving the work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model discloses a threaded anti-loosening locking structure structure diagram is proposed to the structure diagram of a threaded anti-loosening locking structure;

[0014] Figure 2The utility model provides a kind of second hexagonal block, external thread pipe and first hexagonal block explosion schematic diagram of thread anti-loose locking structure proposed by the utility model;

[0015] Figure 3 The utility model provides a kind of second hexagonal block, eight-shaped groove and protruding schematic diagram of thread anti-loose locking structure proposed by the utility model;

[0016] Figure 4 The utility model provides a kind of second hexagonal block and second thread hole schematic diagram of thread anti-loose locking structure proposed by the utility model;

[0017] Figure 5 The utility model provides a kind of second hexagonal block section expansion schematic diagram of thread anti-loose locking structure proposed by the utility model.

[0018] In the drawing: 1, bolt;2, second hexagonal block;3, external thread pipe;4, first hexagonal block;5, eight-shaped groove;6, notch;7, first thread hole;8, protruding;9, stand;10, second thread hole;11, sliding slot;12, circular slider;13, spring. Specific implementation

[0019] 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.

[0020] Reference Figure 1 Figure 5 A thread anti-loose locking structure, including second hexagonal block 2, second hexagonal block 2 top middle place is equipped with second thread hole 10, second hexagonal block 2 bottom is equipped with eight-shaped groove 5, and eight-shaped groove 5 and second thread hole 10 are communicated, and two protrusions 8 are fixed symmetrically in second hexagonal block 2 bottom near second thread hole 10, bolt 1 is sleeved on the side wall of second thread hole 10, and bolt 1 is matched with second thread hole 10, locking mechanism for locking bolt 1 and second hexagonal block 2 is arranged on the top of second hexagonal block 2, in the process of using the device, when two protrusions 8 contact with the surface of object, the thread of second thread hole 10 is tightened by contracting two eight-shaped grooves 5 to achieve the purpose of preliminary locking and anti-loose, the friction between second hexagonal block 2 and bolt 1 is enhanced by the design of locking mechanism, the connection stability between bolt 1 and second hexagonal block 2 can be improved, and the risk of loosening is further reduced.

[0021] ​Further, the locking mechanism comprises an outer threaded pipe 3 fixed on the top of the second hexagonal block 2, a plurality of notches 6 are equidistantly arranged on the top of the outer threaded pipe 3, the outer side wall of the outer threaded pipe 3 is sleeved with the first hexagonal block 4, a first threaded hole 7 is arranged on the top of the first hexagonal block 4, and the diameter of the first threaded hole 7 gradually decreases from bottom to top, the first hexagonal block 4 is sleeved on the outer side wall of the outer threaded pipe 3, and the first hexagonal block 4 is rotated, with the rotation of the first hexagonal block 4, the threads of the first threaded hole 7 are tightened by the contraction of the plurality of notches 6, and the locking purpose of the second hexagonal block 2 is achieved again.

[0022] Further, the bottom of the second hexagonal block 2 is provided with four sliding grooves 11 at four corners, the four sliding grooves 11 are of the necked structure, the inner side walls of the four sliding grooves 11 are slidably provided with four circular sliding blocks 12, the bottoms of the four circular sliding blocks 12 are fixed with four vertical columns 9, the four sliding grooves 11 are provided with four springs 13, and the four springs 13 are respectively located above the four circular sliding blocks 12, when the two protrusions 8 contact the surface of the object, the four vertical columns 9 drive the four circular sliding blocks 12 to move upward along the direction of the four sliding grooves 11 respectively, so that the four springs 13 are in the compressed state, under the reaction of the four compressed springs 13, the four vertical columns 9 are tightly combined with the surface of the object, and at the same time, a vertical upward force is applied to the second hexagonal block 2 to increase the friction between the second hexagonal block 2 and the object, thereby further preventing the loosening of the second hexagonal block 2, without the need to additionally install elastic washers on the bolt 1, the installation steps are simplified, the time and labor intensity are reduced, and the stability of the connection between the bolt 1 and the second hexagonal block 2 is improved.

[0023] Working principle: in the use process, the bolt 1 is passed through the object and screwed into the second threaded hole 10, the bolt 1 is rotated through the power piece, at this time, the second hexagonal block 2 gradually approaches the surface of the object, until the two protrusions 8 are in contact with the object, at this time, the second hexagonal block 2 no longer moves downward, with the continuous rotation of the bolt 1, the extrusion force between the two protrusions 8 and the object becomes larger, at this time, the two eight-shaped grooves 5 are in a contraction state to tighten the threads of the second threaded hole 10, to achieve the purpose of preliminary locking and preventing loosening, when the two protrusions 8 are in contact with the surface of the object, four columns 9 are respectively driven to move upward along the direction of four sliding grooves 11, so that the four springs 13 are in a compressed state, under the reaction of the four compressed springs 13, the four columns 9 are tightly attached to the surface of the object, and at the same time, a vertical upward force is applied to the second hexagonal block 2 to increase the friction between the second hexagonal block 2 and the object, thereby further preventing the loosening of the second hexagonal block 2, without the need to additionally install an elastic washer on the bolt 1, the installation steps are simplified, the time and labor intensity are reduced, the stability of the connection between the bolt 1 and the second hexagonal block 2 is improved, after locking the object, the first hexagonal block 4 is sleeved on the outer wall of the outer threaded pipe 3, and the first hexagonal block 4 is rotated, with the rotation of the first hexagonal block 4, the threads of the first threaded hole 7 are tightened by contracting the multiple notches 6, and the locking and preventing loosening of the second hexagonal block 2 is achieved again.

[0024] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A thread locking structure for locking a second hexagonal block (2), characterized in that, The second hexagonal block (2) is provided with a second threaded hole (10) in the middle of the top, an eight-shaped slot (5) is arranged at the bottom of the second hexagonal block (2), and the eight-shaped slot (5) is communicated with the second threaded hole (10), two protrusions (8) are symmetrically arranged at the bottom of the second hexagonal block (2) and close to the second threaded hole (10), a bolt (1) is sleeved on the side wall of the second threaded hole (10), and the bolt (1) is matched with the second threaded hole (10), and a locking mechanism is arranged at the top of the second hexagonal block (2) and used for locking the bolt (1) and the second hexagonal block (2).

2. The thread locking structure according to claim 1, wherein The locking mechanism comprises an outer threaded pipe (3), the outer threaded pipe (3) is fixed to the top of the second hexagonal block (2), and a plurality of notches (6) are equidistantly arranged at the top of the outer threaded pipe (3).

3. The thread locking structure according to claim 2, wherein The outer threaded pipe (3) is sleeved with a first hexagonal block (4) on the outer side wall, the first hexagonal block (4) is provided with a first threaded hole (7) in the middle of the top, and the diameter of the first threaded hole (7) is gradually reduced from bottom to top.

4. The thread locking structure according to claim 1, wherein The bottom of the second hexagonal block (2) is provided with four sliding grooves (11) at four corners, the four sliding grooves (11) are all of the neck-in structure, the inner side walls of the four sliding grooves (11) are all slidably provided with circular sliding blocks (12), and the bottoms of the four circular sliding blocks (12) are all fixed with vertical columns (9).

5. The thread locking structure according to claim 4, wherein The interiors of the four sliding grooves (11) are all provided with springs (13), and the fourth spring (13) is arranged above the four circular sliding blocks (12).

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