Plastic nut

Abstract

The utility model discloses a plastic nut, relates to the technical field of fasteners, aims to provide a plastic nut capable of preventing the inside of the nut from being detached after being fixed, and is technically characterized in that a threaded sleeve is provided, a threaded groove connected with a bolt in a matched mode is formed in the threaded sleeve, and a nut outer ring matched with an installation tool is arranged on the outer side of the threaded sleeve. The nut outer ring is arranged in a hexagon shape, a disconnecting groove is formed in the nut outer ring, and an inclined connecting plate is arranged between the nut outer ring and the threaded sleeve. The nut has the technical effects that the connecting plate and the disconnecting groove are arranged, the nut outer ring extrudes the connecting plate after being stressed, so that the connecting plate is subjected to external thrust, the nut outer ring is pushed outwards after being stressed, the nut outer ring is tightly attached to a tool, when the nut outer ring is reversely rotated, the nut outer ring can apply inward pressure to the connecting plate, and the nut outer ring is prevented from being damaged. And the connecting plate rotates inwards, so that the inner diameter of the outer ring of the nut is reduced, and the purpose of preventing disassembly is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a plastic nut. Background Art

[0002] A nut is a mechanical part used in conjunction with a bolt or screw, mainly used to fasten two or more parts. The common nut shape is hexagonal with internal threads. The thread is the key part of the nut. Its shape is a spiral groove, and its specifications are exactly the same as the matching bolt to ensure that the two can be tightly screwed together. A plastic nut is a nut made of plastic as the main material. Its appearance is similar to that of a metal nut, with internal threads, and is used to cooperate with the bolt to achieve the fastening function. Plastic nuts are a type of fastener and play a role in many occasions where strength requirements are not particularly high, but other performance requirements such as weight, corrosion resistance, insulation, etc. have special requirements. In some special connection work, the nut needs to be prevented from being disassembled after it is fixed, but the existing plastic nuts do not have the function of preventing disassembly. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the deficiencies of the prior art, the utility model provides a plastic nut which can prevent disassembly inside the nut after being fixed.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a plastic nut, comprising a threaded sleeve, a threaded groove is provided in the threaded sleeve for cooperating with a bolt, a nut outer ring is provided on the outside of the threaded sleeve for cooperating with an installation tool, the nut outer ring is hexagonal, and a disconnection groove is provided in the nut outer ring, an oblique connecting plate is provided between the nut outer ring and the threaded sleeve, the connecting plate can withstand a certain degree of elastic deformation, and the nut outer ring applies a tightening thrust to the threaded sleeve through the connecting plate.

[0007] Preferably, a first plug-in groove is provided on the inner side of the outer ring of the nut, a second plug-in groove is provided on the outer side of the threaded sleeve, and the connecting plate is connected to the outer ring of the nut and the threaded sleeve through the first plug-in groove and the second plug-in groove.

[0008] Preferably, the first plug-in slot opening is arranged upward, and the second plug-in slot opening is arranged downward.

[0009] Preferably, a gasket is provided under the connecting plate, and the gasket is used to increase the contact area between the threaded sleeve and the installation position.

[0010] Preferably, the connecting plate is integrally injection-molded with the gasket via a connecting bridge, and a cutting groove is provided between the connecting plate and the gasket.

[0011] Preferably, a dustproof component is provided on the threaded sleeve, a slot is provided on the outer side of the threaded sleeve, and the dustproof component is connected to the slot.

[0012] Preferably, the dustproof component includes a sleeve ring sleeved on the threaded sleeve, a dustproof cover is provided on the sleeve ring, and a clamping pin is provided under the sleeve ring, and the clamping pin is fitted in the clamping slot.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a plastic nut with the following beneficial effects:

[0015] 1. By setting the connecting plate and the disconnecting groove, when performing the tightening work, the tool applies force to the outer ring of the nut. After the outer ring of the nut is subjected to force, it squeezes the connecting plate, so that the connecting plate is subjected to external thrust. After the connecting plate is subjected to force, the outer ring of the nut is pushed outward, so that the outer ring of the nut fits tightly with the tool, and finally the threaded sleeve is rotated and fixed with the bolt. When the outer ring of the nut is rotated in the opposite direction, the outer ring of the nut will apply inward pressure to the connecting plate, causing the connecting plate to rotate inward, making the inner diameter of the outer ring of the nut smaller, and unable to cooperate with the tool, thereby achieving the purpose of preventing disassembly.

[0016] 2. By setting up a dustproof component, the dustproof component uses an internal sleeve ring to be set on the threaded sleeve, and uses a dustproof cover to cover the top of the threaded sleeve, thereby achieving the effect of protecting the threaded groove inside the threaded sleeve and the bolt after installation to prevent dust from invading therein, and the card pin under the sleeve ring can cooperate with the card groove to fix the threaded sleeve, ensuring the stability of the dustproof cover and preventing it from falling accidentally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the threaded sleeve of the utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the connecting plate of the utility model;

[0020] Figure 4 It is a three-dimensional schematic diagram of the dustproof component of the utility model;

[0021] Figure 5 This is a schematic diagram of the threaded sleeve of the utility model when viewed from above.

[0022] In the figure: 1. threaded sleeve; 2. outer ring of nut; 3. connecting plate; 4. disconnecting groove; 5. dustproof component; 501. sleeve ring; 502. dustproof cover; 503. card pin; 6. card slot; 7. threaded groove; 8. first plug-in slot; 9. second plug-in slot; 10. gasket; 11. connecting bridge; 12. cutting groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5 A plastic nut includes a threaded sleeve 1, a threaded groove 7 for connecting with a bolt is provided in the threaded sleeve 1, a nut outer ring 2 for connecting with an installation tool is provided on the outside of the threaded sleeve 1, the nut outer ring 2 is hexagonal, and a disconnection groove 4 is provided in the nut outer ring 2, an oblique connecting plate 3 is provided between the nut outer ring 2 and the threaded sleeve 1, the connecting plate 3 can withstand a certain degree of elastic deformation, and the nut outer ring 2 applies a tightening thrust to the threaded sleeve 1 through the connecting plate 3;

[0025] In the present invention, a connecting plate 3 and a disconnecting groove 4 are provided. When tightening, the tool applies force to the outer ring 2 of the nut. After the outer ring 2 of the nut is subjected to force, it squeezes the connecting plate 3, so that the connecting plate 3 is subjected to external thrust. After the connecting plate 3 is subjected to force, the outer ring 2 of the nut is pushed outward, so that the outer ring 2 of the nut fits tightly with the tool, and finally the threaded sleeve 1 is rotated and fixed with the bolt. When the outer ring 2 of the nut is rotated in the opposite direction, the outer ring 2 of the nut will apply inward pressure to the connecting plate 3, causing the connecting plate to rotate inward, causing the inner diameter of the outer ring 2 of the nut to become smaller, and it cannot cooperate with the tool, thereby achieving the purpose of preventing disassembly.

[0026] A first inserting groove 8 is formed on the inner side of the nut outer ring 2, and a second inserting groove 9 is formed on the outer side of the threaded sleeve 1. The connecting plate 3 is connected to the nut outer ring 2 and the threaded sleeve 1 through the first inserting groove 8 and the second inserting groove 9;

[0027] By setting the first plug-in groove 8 and the second plug-in groove 9, the connecting plate 3 can be plugged into the first plug-in groove 8 and the second plug-in groove 9 to achieve the purpose of connecting the threaded sleeve 1 and the nut outer ring 2, so that the threaded sleeve 1, the nut outer ring 2 and the connecting plate 3 can be produced separately, which simplifies the structure of the injection mold and reduces the cost of mold opening.

[0028] The first plug-in slot 8 is opened upward, and the second plug-in slot 9 is opened downward.

[0029] By setting the openings of the first plug-in slot 8 and the second plug-in slot 9 in opposite directions, after the threaded sleeve 1 is fixed, the connecting plate 3 will be clamped, so that the connecting plate 3 cannot move upward, and is then fixed to the side of the threaded sleeve 1, and the connecting plate 3 will fix the nut outer ring 2, so that the nut outer ring 2 cannot move upward, thereby achieving a stable fixation effect.

[0030] A gasket 10 is provided under the connecting plate 3, and the gasket 10 is used to increase the contact area between the threaded sleeve 1 and the installation position;

[0031] By providing the gasket 10, the gasket 10 can increase the area of ​​the lower portion of the threaded sleeve 1, thereby increasing the contact range with the connection portion, making the fixation more secure, and avoiding the problem of perforation.

[0032] The connecting plate 3 is integrally injection-molded with the gasket 10 via the connecting bridge 11, and a cutting groove 12 is provided between the connecting plate 3 and the gasket 10;

[0033] By setting the connecting bridge 11 and the cutting groove 12, during production, the connecting plate 3 and the gasket 10 are molded at one time using an injection mold, and then the cutting groove 12 is cut between the connecting plate 3 and the gasket 10, and the connecting bridge 11 is left. In this way, the gasket 10 and the connecting plate 3 can be molded at one time, which simplifies the subsequent assembly process. Then, after molding, the cutting groove 12 is opened so that only the connecting bridge 11 is retained between the gasket 10 and the connecting plate 3, so that the connecting plate 3 can still be freely elastically deformed to avoid affecting the anti-disassembly work.

[0034] A dustproof assembly 5 is provided on the threaded sleeve 1. A slot 6 is provided on the outer side of the threaded sleeve 1. The dustproof assembly 5 is connected to the slot 6. The dustproof assembly 5 includes a sleeve 501 sleeved on the threaded sleeve 1. A dustproof cover 502 is provided on the sleeve 501. A clamping pin 503 is provided under the sleeve 501. The clamping pin 503 is in contact with the slot 6.

[0035] By setting up the dustproof component 5, the dustproof component 5 uses the internal sleeve 501 to be sleeved on the threaded sleeve 1, and uses the dustproof cover 502 to cover the top of the threaded sleeve 1, thereby achieving the effect of protecting the threaded groove 7 inside the threaded sleeve 1 and the bolt after installation to prevent dust from invading therein, and the clamping pin 503 under the sleeve 501 can cooperate with the clamping groove 6 to fix the threaded sleeve 1, ensuring the stability of the dustproof cover 502 to prevent it from falling off accidentally.

[0036] Working principle: During installation, the tool is used to rotate the nut outer ring 2 in the forward direction. The nut outer ring 2 uses the connecting plate 3 to apply force to the threaded sleeve 1. The connecting plate 3 will expand outward when subjected to forward force and push the nut outer ring 2 to fit with the tool, thereby achieving the purpose of rotating and tightening the threaded sleeve 1. When the nut outer ring 2 is rotated in the reverse direction, the connecting plate 3 will rotate outward under the reverse force and drive the nut outer ring 2 to shrink inward, so that the nut outer ring 2 is separated from the tool. At this time, the tool cannot apply force to the nut outer ring 2, thereby achieving the purpose of preventing disassembly.

[0037] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention that solve essentially the same technical problems and achieve essentially the same technical effects are included within the scope of protection of the present invention.

Claims

1. A plastic nut, comprising a threaded sleeve (1), characterized in that: A threaded groove (7) is provided in the threaded sleeve (1) for connecting with a bolt, a nut outer ring (2) is provided on the outside of the threaded sleeve (1) for connecting with an installation tool, the nut outer ring (2) is hexagonal, and a disconnection groove (4) is provided in the nut outer ring (2), an oblique connecting plate (3) is provided between the nut outer ring (2) and the threaded sleeve (1), the connecting plate (3) can withstand a certain degree of elastic deformation, and the nut outer ring (2) applies a tightening thrust to the threaded sleeve (1) through the connecting plate (3).

2. The plastic nut according to claim 1, characterized in that: A first plug-in slot (8) is provided on the inner side of the nut outer ring (2), a second plug-in slot (9) is provided on the outer side of the threaded sleeve (1), and the connecting plate (3) is connected to the nut outer ring (2) and the threaded sleeve (1) via the first plug-in slot (8) and the second plug-in slot (9).

3. The plastic nut according to claim 2, characterized in that: The first plug-in slot (8) is opened upward, and the second plug-in slot (9) is opened downward.

4. The plastic nut according to claim 1, characterized in that: A gasket (10) is provided under the connecting plate (3), and the gasket (10) is used to increase the contact area between the threaded sleeve (1) and the installation position.

5. The plastic nut according to claim 4, characterized in that: The connecting plate (3) is integrally injection-molded with the gasket (10) via a connecting bridge (11), and a cutting groove (12) is provided between the connecting plate (3) and the gasket (10).

6. The plastic nut according to claim 1, characterized in that: A dustproof component (5) is provided on the threaded sleeve (1), a clamping groove (6) is provided on the outer side of the threaded sleeve (1), and the dustproof component (5) is connected to the clamping groove (6).

7. The plastic nut according to claim 6, characterized in that: The dustproof assembly (5) comprises a sleeve ring (501) sleeved on the threaded sleeve (1), a dustproof cover (502) being provided on the sleeve ring (501), and a clamping pin (503) being provided under the sleeve ring (501), wherein the clamping pin (503) is fitted with the clamping slot (6).

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