A flange nut capable of preventing back-off

Abstract

The utility model relates to nut technical field, concretely is a kind of flange nut of anti-backout, including nut piece, the bottom surface of nut piece is provided with flange part, the bottom surface of nut piece is evenly provided with multiple lugs, the top surface of nut piece is equipped with positioning piece, and cooperating installation limiting piece is installed on the positioning piece;The utility model is provided with limiting piece and positioning piece in the flange nut of anti-backout, in the process of device use, by the mutual cooperation between above-mentioned structure, realize the thread of arc rubber block and screw rod closely, significantly improve the static friction between arc rubber block and screw rod, further strengthen axial constraint, effectively inhibit the reverse rotation tendency caused by vibration or load fluctuation, reach the effect of ensuring the long-term reliability of connecting node under complex working condition, effectively solve the phenomenon of flange nut wire.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, specifically to a flange nut that can be locked back. Background Technology

[0002] A flange nut is a specially designed nut, the core feature of which is a protruding flange (a wide annular platform) on the nut head, making it significantly different from traditional hexagonal nuts in terms of function and application. Under dynamic working conditions (such as continuous vibration or alternating loads), the existing flange nuts have significant hidden dangers due to their traditional structure. They are easily disturbed by external forces and tend to rotate in the opposite direction, causing the nut to gradually peel off from the bolt or screw body, which can eventually lead to the loss of connection function.

[0003] Therefore, a non-retractable flange nut is needed to improve the above-mentioned problems. Utility Model Content

[0004] To address the significant safety concerns of conventional flange nuts under dynamic operating conditions—that they are susceptible to reverse rotation due to external forces, causing them to gradually detach from the bolt or screw and ultimately resulting in loss of connection function—this invention provides a flange nut with anti-reverse mechanism to solve these problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A non-retractable flange nut includes a nut component, a flange portion provided on the bottom surface of the nut component, a plurality of protruding teeth evenly provided on the bottom surface of the nut component, a positioning component installed on the top surface of the nut component, and a limit component fitted on the positioning component.

[0006] As a preferred embodiment of this utility model, the limiting member includes an annular block one and an annular block two. An arc-shaped rubber block is provided on the inner side of both annular block one and annular block two. An installation groove one is provided at one end of annular block one, and an installation groove two is provided at one end of annular block one.

[0007] As a preferred embodiment of this utility model, a fixed shaft is installed in the inner cavity of the second mounting groove, and a connecting block is rotatably mounted on the fixed shaft. The side of the connecting block away from the fixed shaft is connected to the inner wall of the first mounting groove.

[0008] As a preferred embodiment of this utility model, a snap-fit ​​plate 1 is installed on the outer wall of the annular block 1 near the side of the annular block 2, and a snap-fit ​​plate 2 is installed on the outer wall of the annular block 2 near the side of the annular block 1.

[0009] As a preferred embodiment of this utility model, the positioning component includes a mounting block, which is disposed on the top surface of the nut component. The mounting block has symmetrical insertion slots in the middle of its side wall. A second snap-fit ​​plate is inserted into the inner cavity of one insertion slot, and a first snap-fit ​​plate is inserted into the other insertion slot.

[0010] As a preferred embodiment of this utility model, a connecting shaft is mounted on the bottom surface of the mounting block, and a baffle is rotatably mounted on the connecting shaft.

[0011] As a preferred embodiment of this utility model, the bottom surface of the mounting block is provided with anti-slip texture, and the top surface of the baffle is provided with anti-slip texture.

[0012] As a preferred embodiment of this utility model, the first snap-fit ​​plate is L-shaped, the second snap-fit ​​plate is L-shaped, and the insertion slot is L-shaped.

[0013] Compared with the prior art, this utility model sets a limiting component and a positioning component in the flange nut that can prevent retraction. During the use of the device, the cooperation between the above structures makes the arc-shaped rubber block and the thread on the threaded rod tightly fit together, which significantly improves the static friction between the arc-shaped rubber block and the threaded rod, further strengthens the axial constraint, effectively suppresses the reverse rotation trend caused by vibration or load fluctuation, and achieves the effect of ensuring the long-term reliability of the connection node under complex working conditions, effectively solving the problem of flange nut thread slippage. Attached Figure Description

[0014] Figure 1 This is a top view structural diagram of the present invention; Figure 2 This is a bottom view structural diagram of the present invention; Figure 3 This is one of the schematic diagrams of the limiting component structure in this utility model; Figure 4 This is the second schematic diagram of the limiting component structure in this utility model; Figure 5 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Threaded rod; 2. Nut; 3. Flange; 4. Raised tooth; 5. Positioning component; 501. Mounting block; 502. Insertion groove; 503. Connecting shaft; 504. Baffle; 6. Limiting component; 601. Annular block one; 602. Arc-shaped rubber block; 603. Mounting groove one; 604. Snap-fit ​​plate one; 605. Connecting block; 606. Fixed shaft; 607. Annular block two; 608. Mounting groove two; 609. Snap-fit ​​plate two. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Example: Please refer to Figure 1 - Figure 5 The flange nut shown includes a nut part 2, a flange part 3 is provided on the bottom surface of the nut part 2, and a plurality of protruding teeth 4 are evenly provided on the bottom surface of the nut part 2. The protruding teeth 4 increase the surface friction with the component to resist the reverse rotation of the flange nut. A positioning part 5 is installed on the top surface of the nut part 2, and a limiting part 6 is installed on the positioning part 5.

[0018] In this embodiment, specific references Figure 1 - Figure 5 The limiting component 6 includes an annular block 1 601 and an annular block 2 607. An arc-shaped rubber block 602 is provided on the inner side of both annular block 1 601 and annular block 2 607. An installation groove 1 603 is provided at one end of annular block 1 601, and an installation groove 2 608 is provided at one end of annular block 1 601. A fixed shaft 606 is installed in the inner cavity of the installation groove 2 608. A connecting block 605 is rotatably installed on the fixed shaft 606. The side of the connecting block 605 away from the fixed shaft 606 is connected to the inner wall of the installation groove 1 603. A snap-fit ​​plate 1 604 is installed on the outer wall of annular block 1 601 near annular block 2 607. A snap-fit ​​plate 2 609 is installed on the outer wall of annular block 2 607 near annular block 1 601. In this process, the second annular block 607 and the first annular block 601 are rotated and opened around the connecting block 605 and the fixed shaft 606, and the threaded rod 1 is retracted between the first annular block 601 and the second annular block 607. Then, the first annular block 601 and the second annular block 607 are closed, and the threaded rod 1 is clamped by two arc-shaped rubber blocks 602. The first snap-fit ​​plate 604 and the second snap-fit ​​plate 609 are closed. At this time, the two arc-shaped rubber blocks 602 will be in close contact with the threaded rod 1, increasing the static friction between the arc-shaped rubber blocks 602 and the threaded rod 1.

[0019] In this embodiment, specific references Figure 1 - Figure 5The positioning component 5 includes a mounting block 501, which is set on the top surface of the nut component 2. The mounting block 501 has symmetrical insertion slots 502 in the middle of its side wall. A second snap-fit ​​plate 609 is inserted into the inner cavity of one insertion slot 502, and a first snap-fit ​​plate 604 is inserted into the other insertion slot 502. A connecting shaft 503 is installed on the bottom surface of the mounting block 501, and a baffle 504 is rotatably installed on the connecting shaft 503. The bottom surface of the mounting block 501 has anti-slip texture, and the top surface of the baffle 504 has anti-slip texture. The first snap-fit ​​plate 604 is "L" shaped, the second snap-fit ​​plate 609 is "L" shaped, and the insertion slot 502 is "L" shaped. The shape design of the snap-fit ​​plate 604, the snap-fit ​​plate 609 and the insertion slot 502 can effectively limit the position of the snap-fit ​​plate 604 and the snap-fit ​​plate 609 when the insertion slot 502 snaps with the snap-fit ​​plate 604 and the snap-fit ​​plate 609 respectively. Furthermore, the anti-slip texture design on the baffle 504 and the mounting block 501 ensures that the relative positions of the baffle 504 and the mounting block 501 will not easily change after they come into contact, further improving the stability of the position of the baffle 504 limiting the position of the first snap-fit ​​plate 604 and the second snap-fit ​​plate 609.

[0020] When using the flange nut with anti-retraction capability, first connect the nut 2 to the threaded rod 1. Then, rotate the second annular block 607 and the first annular block 601 around the connecting block 605 and the fixed shaft 606 to open them, and retract the threaded rod 1 between the first annular block 601 and the second annular block 607. Then, close the first annular block 601 and the second annular block 607, use the two arc-shaped rubber blocks 602 to clamp the threaded rod 1, and close the first snap-fit ​​plate 604 and the second snap-fit ​​plate 609. Then, the first snap-fit ​​plate 604 and the second snap-fit ​​plate 609 are respectively inserted into the two insertion slots 502. Then, the baffle 504 is rotated to close the insertion slots 502, thereby limiting the position of the limiting member 6. At this time, the arc-shaped rubber block 602 is tightly attached to the thread on the threaded rod 1, which significantly improves the static friction between the arc-shaped rubber block 602 and the threaded rod 1, further strengthens the axial constraint, and effectively suppresses the reverse rotation trend caused by vibration or load fluctuation, thus achieving the effect of ensuring the long-term reliability of the connection node under complex working conditions.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-retractable flange nut, comprising a nut component (2), characterized in that: The bottom surface of the nut (2) is provided with a flange (3), and the bottom surface of the nut (2) is provided with a plurality of protruding teeth (4). The top surface of the nut (2) is provided with a positioning part (5), and a limiting part (6) is installed on the positioning part (5).

2. The anti-reverse flange nut according to claim 1, characterized in that: The limiting component (6) includes an annular block one (601) and an annular block two (607). An arc-shaped rubber block (602) is provided on the inner side of both annular block one (601) and annular block two (607). An installation groove one (603) is provided at one end of annular block one (601), and an installation groove two (608) is provided at one end of annular block one (601).

3. The anti-reverse flange nut according to claim 2, characterized in that: A fixed shaft (606) is installed in the inner cavity of the second mounting groove (608), and a connecting block (605) is rotatably installed on the fixed shaft (606). The side of the connecting block (605) away from the fixed shaft (606) is connected to the inner wall of the first mounting groove (603).

4. A non-retractable flange nut according to claim 3, characterized in that: A snap-fit ​​plate 1 (604) is installed on the outer wall of the first annular block (601) near the second annular block (607), and a snap-fit ​​plate 2 (609) is installed on the outer wall of the second annular block (607) near the first annular block (601).

5. A non-retractable flange nut according to claim 4, characterized in that: The positioning component (5) includes a mounting block (501), which is located on the top surface of the nut component (2). The mounting block (501) has symmetrical insertion slots (502) in the middle of its side wall. A second snap-fit ​​plate (609) is inserted into the inner cavity of one insertion slot (502), and a first snap-fit ​​plate (604) is inserted into the other insertion slot (502).

6. A non-retractable flange nut according to claim 5, characterized in that: A connecting shaft (503) is mounted on the bottom surface of the mounting block (501), and a baffle (504) is rotatably mounted on the connecting shaft (503).

7. A non-retractable flange nut according to claim 6, characterized in that: The bottom surface of the mounting block (501) is provided with anti-slip texture, and the top surface of the baffle (504) is provided with anti-slip texture.

8. A non-retractable flange nut according to claim 6, characterized in that: The first snap-fit ​​plate (604) is L-shaped, the second snap-fit ​​plate (609) is L-shaped, and the insertion slot (502) is L-shaped.

Images