Double-end anti-loosening spring nut assembly

Abstract

The utility model discloses a double-end anti-loosing spring nut assembly which comprises a main nut and a bolt, the top end of the main nut is fixedly connected with a limiting plate, the middle of the limiting plate is provided with two limiting rings, the open end and the tail end of each limiting ring are fixedly connected with a connecting block, the top end of each connecting block is provided with a small-sized bolt, and the small-sized bolt is fixedly connected with the main nut. A small nut is arranged at the right end of the small bolt, and the small nut can be tightened to enable the connecting block to move relatively, so that the limiting ring is driven to be tightened; the main nut is designed, the limiting plate on the main nut is attached to the bolt, then the small nut is tightened, the two connecting blocks move relatively, the limiting ring is driven to be shrunk, the limiting plate is extruded, the inner wall of the limiting plate extrudes the bolt, and therefore the stability of the main nut is improved, and looseness caused by vibration is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to a double-headed anti-loosening spring nut assembly. Background Art

[0002] Spring screws can be riveted on iron plates and can be screwed in and out freely. The whole piece can be firmly embedded in the panel without coming off the panel, so it is also called a non-slip screw. The outer circle of the hand-tightening sleeve is generally pressed with straight teeth to facilitate hand-tightening or manual tightening, so it is also called a hand-tightening screw or a hand-tightening screw.

[0003] The existing stud nut assembly cannot be locked, and is simply connected to the bolt through the inner thread. It is easy to loosen on equipment that generates vibration, thereby causing product loss.

[0004] Therefore, it is necessary to provide a double-headed anti-loosening spring nut assembly to solve the above technical problems. Utility Model Content

[0005] In order to overcome the structural defects of the prior art mentioned above, the utility model provides a double-headed anti-loosening spring nut assembly.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a double-headed anti-loosening spring nut assembly, comprising a main nut and a bolt, characterized in that: the top of the main nut is fixedly connected to a limit plate, a limit ring is provided in the middle of the limit plate, and two limit rings are provided, the opening and end of the limit ring are fixedly connected to a connecting block, a small bolt is provided at the top of the connecting block, and a small nut is provided at the right end of the small bolt, which can make the connecting block move relatively by tightening the small nut, thereby driving the limit ring to tighten.

[0007] Preferably, the limit plate is a curved plate, which is closer to the bolt. The limit plate is perpendicular to the main nut, and four limit plates are provided. The limit plates are installed in an equidistant arrangement, and an internal thread is provided in the limit plate. The internal thread is consistent with the internal thread of the main nut, and when the limit ring is tightened, the limit plate will be tightened.

[0008] Preferably, a main nut is provided at the top end of the bolt, a spring washer is provided at the bottom end of the main nut, and an embedded nut is provided at the bottom end of the spring washer.

[0009] Preferably, the bottom end of the main nut is fixedly connected to the bottom ring.

[0010] Preferably, the size of the bottom ring is consistent with the size of the spring washer.

[0011] Preferably, the size of the embedded nut is consistent with that of the main nut and is a hexagonal nut.

[0012] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0013] (1) The utility model uses the structure of the main nut and the bolt to make the limit plate on the main nut fit the bolt, and then by tightening the small nut, the two connecting blocks move relative to each other, thereby driving the limit ring to shrink and squeeze the limit plate, so that the inner wall of the limit plate squeezes the bolt, thereby increasing the stability of the main nut and preventing it from loosening due to vibration.

[0014] (2) The utility model adopts the structure of the main nut and the embedded nut. The main nut can effectively increase the pressure of the embedded nut when it spirals up. Since the main nut itself is not easy to loosen, the two structures further reduce the probability of product loosening. The overall structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 Schematic diagram at A in the middle;

[0017] Among them: 1. Main nut; 2. Bolt; 3. Limit plate; 4. Limit ring; 5. Connecting block; 6. Small bolt; 7. Small nut; 8. Internal thread; 9. Spring washer; 10. Embedded nut; 11. Bottom ring; DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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 making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0021] Embodiment:

[0022] As shown in the figure, the utility model provides a double-head anti-loosening spring nut assembly, including a main nut 1 and a bolt 2, characterized in that: the top of the main nut 1 is fixedly connected to a limit plate 3, a limit ring 4 is provided in the middle of the limit plate 3, and two limit rings 4 are provided, the start and end of the limit ring 4 are fixedly connected to a connecting block 5, a small bolt 6 is provided at the top of the connecting block 5, and a small nut 7 is provided at the right end of the small bolt 6, which can make the connecting block 5 move relatively by tightening the small nut 7, thereby driving the limit ring 4 to tighten; wherein the limit ring 4 is a circular ring, and a notch is provided on the circular ring, and then the small bolt 6 passes through the two connecting blocks 5, and then when the limit ring 4 is tightened, it will squeeze the limit plate 3, so that the inner wall of the limit plate 3 squeezes the bolt 2, thereby increasing the stability of the main nut 1.

[0023] In the present embodiment, specifically, the limit plate 3 is a curved plate, which is closer to the bolt 2, the limit plate 3 is perpendicular to the main nut 1, and four limit plates 3 are provided, the limit plates 3 are installed in an equidistant arrangement, and an internal thread 8 is provided in the limit plate 3, the internal thread 8 is consistent with the internal thread 8 of the main nut 1, and when the limit ring 4 is tightened, the limit plate 3 will be driven to tighten.

[0024] In this embodiment, specifically, a main nut 1 is provided at the top of the bolt 2, a spring washer 9 is provided at the bottom of the main nut 1, and an embedded nut 10 is provided at the bottom of the spring washer 9; wherein the spring washer 9 can prevent loosening and increase the preload force, while the flat washer does not have this function, and can also be used to increase the fastening contact area, prevent friction between the bolt and the workpiece, protect the surface of the connecting part, and prevent the surface of the workpiece from being scratched when the bolt and nut are tightened, and then the embedded nut 10 can further increase the overall stability.

[0025] In this embodiment, specifically, the bottom end of the main nut 1 is fixedly connected to the bottom ring 11 to facilitate the engagement of the spring washer 9.

[0026] In this embodiment, specifically, the size of the bottom ring 11 is consistent with the size of the spring washer 9, making the overall structure more compact.

[0027] In this embodiment, specifically, the size of the embedded nut 10 is consistent with that of the main nut 1 and is a hexagonal nut; wherein the hexagonal nut is mostly used in occasions where assembly and disassembly are often required.

[0028] Working principle: first install the embedded nut 10 in the bolt 2, then put the spring washer 9 on the bolt 2, then install the main nut 1 on the spring washer 9, then the limit plate 3 on the main nut 1 fits against the bolt 2, and then tighten the small nut 7 to make the two connecting blocks 5 move relative to each other, thereby driving the limit ring 4 to shrink and squeeze the limit plate 3, so that the inner wall of the limit plate 3 squeezes the bolt 2, thereby increasing the stability of the main nut 1 and preventing it from loosening due to vibration; when disassembling, you only need to loosen the small nut 7, and the limit plate 3 will lose pressure and return to its normal state.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-headed anti-loosening spring nut assembly, comprising a main nut (1) and a bolt (2), characterized in that: The top of the main nut (1) is fixedly connected to a limit plate (3), a limit ring (4) is provided in the middle of the limit plate (3), and two limit rings (4) are provided. The opening and the end of the limit ring (4) are fixedly connected to a connecting block (5), a small bolt (6) is provided at the top of the connecting block (5), and a small nut (7) is provided at the right end of the small bolt (6), which can make the connecting block (5) move relatively by tightening the small nut (7), thereby driving the limit ring (4) to tighten.

2. A double-headed anti-loosening spring nut assembly according to claim 1, characterized in that: The limit plate (3) is a curved plate, which is closer to the bolt (2). The limit plate (3) is perpendicular to the main nut (1), and there are four limit plates (3). The limit plates (3) are installed in an equidistant arrangement, and an internal thread (8) is provided in the limit plate (3). The internal thread (8) is consistent with the internal thread (8) of the main nut (1), and when the limit ring (4) is tightened, the limit plate (3) is driven to tighten.

3. A double-headed anti-loosening spring nut assembly according to claim 1, characterized in that: A main nut (1) is provided at the top end of the bolt (2), a spring washer (9) is provided at the bottom end of the main nut (1), and an embedded nut (10) is provided at the bottom end of the spring washer (9).

4. A double-headed anti-loosening spring nut assembly according to claim 2, characterized in that: The bottom end of the main nut (1) is fixedly connected to the bottom ring (11).

5. A double-headed anti-loosening spring nut assembly according to claim 4, characterized in that: The size of the bottom ring (11) is consistent with the size of the spring washer (9).

6. A double-headed anti-loosening spring nut assembly according to claim 3, characterized in that: The size of the embedded nut (10) is consistent with that of the main nut (1) and is a hexagonal nut.

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