Nylon nut

Abstract

The utility model belongs to the technical field of nylon nuts, and particularly relates to a nylon nut. Comprising a nut body, a threaded hole is formed in the center of the nut body, and the threaded hole is used for being in threaded connection with a screw located on a connected component; the annular boss is arranged on the top surface of the nut body; the mounting groove is formed in the annular boss; the nylon gasket is embedded in the mounting groove, and the nylon gasket coincides with the axis of the threaded hole; the positioning part is arranged at the top of the nut body and used for positioning the nylon gasket, and the nylon gasket is convenient to disassemble and replace; the positioning part comprises a hexagonal nut cover which is arranged at the top of the nut body and covers the annular boss; the top plate is arranged at the top of the hexagonal nut cover, and the bottom of the top plate contacts with the top of the nylon gasket; the internal thread is arranged on the inner wall of the hexagonal nut cover; and the external thread is arranged on the outer wall of the annular boss, and the external thread is in threaded fit with the internal thread. According to the nylon nut, the nylon pad can be rapidly detached and replaced, and time is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of nylon nuts, and particularly relates to a nylon nut. Background Art

[0002] Nylon nuts are widely used because of their self-locking function and simple structure. The basic structure of a nylon locking nut is as follows: it includes an external hexagonal body and a nylon washer. A threaded hole is provided inside the external hexagonal body, and a thin-wall sleeve structure is provided on the upper end surface of the external hexagonal body. After the nylon washer is inserted into the inner hole of the thin-wall sleeve, the upper port of the thin-wall sleeve is turned inward to press the nylon washer against the upper end surface of the external hexagonal body. The inner hole diameter of the nylon washer is smaller than the inner diameter of the threaded hole.

[0003] The utility model patent with the publication number CN212744652U discloses a nylon nut, belonging to the technical field of nylon nuts. The nylon nut includes a nut, an internal threaded hole is opened in the upper part of the nut, a sleeve is fixed at the upper end of the nut, an installation groove is opened at the lower end of the sleeve, a plurality of positioning rods are fixed at the upper end of the nut, a conical rubber block is fixed at the upper end of each of the plurality of positioning rods, and the plurality of conical rubber blocks and positioning rods are all located in the installation groove. A nylon pad is arranged in the installation groove. A plurality of clamping grooves and positioning holes matching with the conical rubber blocks and positioning rods are opened at the lower end of the nylon pad. The plurality of clamping grooves and positioning holes are respectively inserted into the circumferential surfaces of the plurality of conical rubber blocks and positioning rods in a movable manner. A plurality of springs are fixed on the upper inner wall of the installation groove, and a pressing plate is fixed at the lower ends of the plurality of springs. The lower surface of the pressing plate is in contact with the upper surface of the nylon pad; in this device, the installation of the nylon pad is convenient and stable after installation, making the device more firm when locking the bolt and not easy to slip.

[0004] Although this technology makes the nylon pad fixed in the installation groove and not easy to rotate by aligning the four positioning holes on the lower side of the nylon pad with the upper ends of the four positioning rods and inserting them, and making the positioning holes squeeze the surface of the conical rubber blocks, so that the conical rubber blocks are squeezed into the clamping grooves, making the nylon pad more firm when locking the bolt; however, this technology is inconvenient for disassembling the nylon pad. When the nylon pad is used for a long time, it is easy to wear, which affects the locking effect and cannot be disassembled and replaced quickly, resulting in a waste of time for replacing the nylon pad. Content of the Utility Model

[0005] The purpose of the utility model is to provide a nylon nut that can quickly disassemble and replace the nylon pad and save time in view of the above-mentioned existing technical problems.

[0006] In view of this, the utility model provides a nylon nut, including:

[0007] A nut body, at the center of which a threaded hole is opened for threaded connection with a screw rod on a connected component;

[0008] A circular boss, provided on the top surface of the nut body;

[0009] An installation groove, opened in the circular boss;

[0010] A nylon washer, embedded in the installation groove, and the nylon washer coincides with the axis of the threaded hole;

[0011] A limiting portion, provided on the inner wall of the installation groove, and cooperates with the nylon washer to limit the position of the nylon washer in the installation groove, so as to generate a pre-tightening effect during installation;

[0012] A positioning portion, provided on the top of the nut body, for positioning the nylon washer and facilitating the disassembly and replacement of the nylon washer;

[0013] The positioning portion includes:

[0014] A hexagonal nut cover, provided on the top of the nut body and covering the circular boss;

[0015] A top plate, provided on the top of the hexagonal nut cover, and the bottom of the top plate is in contact with the top of the nylon washer;

[0016] Internal threads, provided on the inner wall of the hexagonal nut cover;

[0017] External threads, provided on the outer wall of the circular boss, and the external threads are in threaded fit with the internal threads.

[0018] In the above technical solution, further, a through hole communicating with the threaded hole is provided on the top plate of the hexagonal nut cover, and the through hole coincides with the axis of the threaded hole.

[0019] In any of the above technical solutions, further, the limiting portion includes:

[0020] Strips, having a plurality of them, evenly spaced along the circumferential direction on the inner wall of the circular boss;

[0021] Limiting semi-circular protrusions, provided at the upper ends of the strips;

[0022] Limiting slots, opened on the outer side of the nylon washer, and the limiting slots are in snap-fit with the strips;

[0023] Card slots, opened on the outer side of the upper part of the nylon washer, the card slots communicate with the limiting slots, and the limiting semi-circular protrusions are in snap-fit with the card slots.

[0024] In any of the above technical solutions, further, the number of the limiting slots is the same as that of the strips and they correspond one by one, and the limiting slots extend downward to penetrate the nylon washer.

[0025] In any of the above technical solutions, further, grooves for preventing the wrench from slipping off the nylon nut are opened on the outer side of the nut body, and there are a plurality of the grooves, evenly spaced along the circumferential direction.

[0026] In any of the above technical solutions, further, an extension groove communicating with the groove is provided on the outer side of the hexagonal nut cover.

[0027] The beneficial effects of the present utility model are as follows:

[0028] 1. The hexagonal nut cover is screwed onto the external thread of the annular boss through the internal thread and fixed on the nut body, making it easy to disassemble and replace the nylon washer, thus facilitating the maintenance and replacement of the nut. The nylon washer is pressed tightly by the top plate to ensure that it is in the correct pre-tightening position and provides the required pre-tightening effect, enabling the nylon washer to correctly pre-tighten the connecting components. In this way, it is convenient to disassemble and replace the nylon washer, thus facilitating the maintenance of the nut body and saving time.

[0029] 2. Through the snap connection of the card strip and the limit slot, the sliding range of the nylon washer is restricted, so that the nylon washer will not loosen or rotate along with the rotation of the connecting piece. By the limit semi-circular convex block abutting against the nylon washer, the nylon washer will not slide up and down or loosen, ensuring that the nylon washer obtains a pre-tightening force during the installation process, thereby enhancing the fastening effect and stability of the nylon nut, effectively preventing the nylon nut from loosening during vibration or use, and enabling the nylon washer to be correctly positioned and fixed on the nut without being affected by external forces.

[0030] 3. Use a disassembly tool to stably clamp the nut body through the groove and the extension groove to avoid the tool slipping off, so as to effectively and safely connect the nut and the screw. This not only improves the reliability and service life of the nut, but also enhances its applicability in various engineering and mechanical applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0032] Figure 2 is an exploded view of the present utility model;

[0033] Figure 3 is a partial three-dimensional structural schematic diagram of the present utility model;

[0034] Figure 4 is a use state diagram of the present utility model;

[0035] In the figure, the reference numerals are: 1, nut body; 2, threaded hole; 3, annular boss; 4, installation groove; 5, nylon washer; 6, positioning part; 61, hexagonal nut cover; 62, top plate; 63, internal thread; 64, external thread; 7, through hole; 8, limiting part; 81, card strip; 82, limiting semi-circular convex block; 83, limiting slot; 84, card slot; 9, groove; 10, extension groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The following will clearly describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope protected by the present application.

[0037] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0038] Embodiment 1:

[0039] As Figures 1-4 shown, this embodiment provides a nylon nut, including:

[0040] A nut body 1, with a threaded hole 2 opened at its center, and the threaded hole 2 is used for threaded connection with a screw on a connected component;

[0041] An annular boss 3, arranged on the top surface of the nut body 1;

[0042] An installation groove 4, opened in the annular boss 3;

[0043] A nylon washer 5, embedded in the installation groove 4, and the nylon washer 5 coincides with the axis of the threaded hole 2;

[0044] A limiting portion 8, arranged on the inner wall of the installation groove 4 and cooperating with the nylon washer 5, for restricting the position of the nylon washer 5 in the installation groove 4 to generate a pre-tightening effect during installation;

[0045] A positioning portion 6, arranged on the top of the nut body 1, for positioning the nylon washer 5 and facilitating the disassembly and replacement of the nylon washer 5;

[0046] This positioning portion 6 includes:

[0047] A hexagonal nut cover 61, arranged on the top of the nut body 1 and covering the annular boss 3;

[0048] The top plate 62 is arranged on the top of the hexagonal nut cap 61, and the bottom of the top plate 62 is in contact with the top of the nylon washer 5;

[0049] The internal thread 63 is arranged on the inner wall of the hexagonal nut cap 61;

[0050] The external thread 64 is arranged on the outer wall of the annular boss 3, and the external thread 64 is in threaded engagement with the internal thread 63.

[0051] In this technical solution, a threaded hole 2 is provided at the center of the nut body 1 for threaded connection with the screw rod, so as to fixedly connect the components. The annular boss 3 is arranged on the top surface of the nut body 1, and an installation groove 4 is provided inside. The function of the installation groove 4 is to fix and position the nylon washer 5. The nylon washer 5 is embedded in the installation groove 4 and coincides with the axis of the threaded hole 2. Its main purpose is to generate a pre-tightening effect during installation to ensure the tightening force of the connecting components. The limiting part 8 is arranged on the inner wall of the installation groove 4 and cooperates with the nylon washer 5. Its function is to limit the position of the nylon washer 5 in the installation groove 4 to ensure that the nylon washer 5 generates a pre-tightening effect at the expected position. The positioning part 6 is located at the top of the nut body 1 and includes a hexagonal nut cap 61 and a top plate 62. The hexagonal nut cap 61 is arranged on the top of the nut body 1 and covers the annular boss 3, and has an internal thread 63 inside. The top plate 62 is arranged on the top of the hexagonal nut cap 61, and the bottom is in contact with the top of the nylon washer 5. The internal thread 63 and the external thread 64 cooperate, so that the hexagonal nut cap 61 can be screwed into the annular boss 3, thereby fixing the overall structure and pressing the nylon washer 5 through the top plate 62 to ensure that it is in the correct position and provides the required pre-tightening effect.

[0052] Overview of the working principle:

[0053] During installation, align the nylon nut with the threaded hole 2 of the screw connection component, and then thread the nut onto the screw by rotating it. The hexagonal nut cover 61 is screwed onto the external thread 64 of the annular boss 3 through the internal thread 63 and fixed on the nut body 1. The nylon washer 5 is pressed tightly by the top plate 62 to ensure it is in the correct pre-tightening position and provides the required pre-tightening effect. The nylon washer 5 is fixed in the installation groove 4 under the action of the limiting part 8, enabling it to correctly pre-tighten the connection component. The design of the positioning part 6 makes it easy to disassemble and replace the nylon washer 5, thus facilitating the maintenance and replacement of the nut. When the nylon washer 5 needs to be replaced, the user unscrews the hexagonal nut cover 61 from the annular boss 3, so that the hexagonal nut cover 61 and the top plate 62 no longer cover the annular boss 3 and the nylon washer 5. Subsequently, the user can take out the nylon washer 5 from the installation groove 4. After taking it out, the nut body 1 is inspected and maintained, and a new nylon washer 5 is installed in the installation groove 4. After installation, the hexagonal nut cover 61 is screwed onto the annular boss 3. Through the cooperation of the internal thread 63 and the external thread 64, the hexagonal nut cover 61 can be screwed into the annular boss 3, thereby fixing the overall structure and pressing the nylon washer 5 tightly by the top plate 62 to ensure it is in the correct position and provides the required pre-tightening effect. This ensures the reliability and safety of the connection component, while ensuring the required tightening effect and long-term performance in various applications, and facilitating the disassembly and replacement of the nylon washer 5, thus facilitating the maintenance of the nut body 1 and saving time.

[0054] As Figure 2 shown, in this embodiment, optimally, a through hole 7 communicating with the threaded hole 2 is provided on the top plate 62 of the hexagonal nut cover 61, and the axis of the through hole 7 coincides with the axis of the threaded hole 2.

[0055] In this technical solution, the hexagonal nut cap 61 is a component installed on the top of the nut body 1. There is a through hole 7 on its top plate 62, and the axis of the through hole 7 coincides with that of the threaded hole 2, which means that the through hole 7 penetrates the top plate 62 of the hexagonal nut cap 61 and forms a straight-through channel with the threaded hole 2. The design of the through hole 7 allows the screw rod to pass through the top plate 62 of the hexagonal nut cap 61 from the threaded hole 2, enabling the nut to completely cover and connect to the screw rod. This ensures that the hexagonal nut cap 61 can be effectively fixed on the nut body 1 and at the same time achieve a tight connection with the thread of the screw rod. During installation, the through hole 7 of the hexagonal nut cap 61 allows the thread of the screw rod to pass through and enter the threaded hole 2 of the nut body 1. The user fixes it on the nut body 1 by rotating the nut cap, while firmly connecting the screw rod to the connecting component. Through the through hole 7 on the top plate 62 of the nut cap, it is ensured that the nut cap can correctly press the nylon washer 5 and place it in the expected position, which not only ensures the safe fastening of the nut but also helps to adjust and maintain the position of the nylon washer 5 to meet the requirements of specific applications. The design of the through hole 7 also makes the nut cap easy to disassemble and replace. The user can easily access the threaded hole 2 and the nylon washer 5 for maintenance or replacement, thereby extending the service life and performance of the nut. The design of this nylon nut effectively promotes the safety and reliability of the fastening components and improves the convenience of maintenance by providing a through hole 7 on the top plate 62 of the hexagonal nut cap 61 that communicates with the threaded hole 2.

[0056] Embodiment 2:

[0057] This embodiment provides a nylon nut, which has the following technical features in addition to the technical solution of the above embodiment.

[0058] As Figure 2 and Figure 3 shown, in this embodiment, optimally, the limiting portion 8 includes:

[0059] Clamping strips 81, there are multiple of them, evenly spaced along the circumferential direction on the inner wall of the annular boss 3;

[0060] Limiting semi-circular protrusions 82, arranged at the upper ends of the clamping strips 81;

[0061] Limiting slots 83, opened on the outer side of the nylon washer 5, and the limiting slots 83 are in clamping fit with the clamping strips 81;

[0062] Card slots 84, opened on the outer side of the upper part of the nylon washer 5, the card slots 84 communicate with the limiting slots 83, and the limiting semi-circular protrusions 82 are in clamping fit with the card slots 84.

[0063] In this technical solution, the clamping strips 81 are multiple structures evenly distributed at circumferential intervals along the inner wall of the annular boss 3. Their function is to provide support and positioning to ensure that the nylon washer 5 can be stably installed on the nut and remain in the correct position. The limiting semi-circular convex block 82 is arranged at the upper end of the clamping strip 81. The limiting semi-circular convex block 82 is in clamping fit with the clamping groove 84, thereby restricting the position of the nylon washer 5 and providing additional fixing support and positioning functions. The limiting slots 83 are opened on the outer side of the nylon washer 5 and are in clamping fit with the clamping strips 81. Through the contact with the clamping strips 81, these slots help to limit the position of the nylon washer 5 within the annular boss 3 to ensure that it will not move or twist. The clamping groove 84 is opened on the outer side of the upper part of the nylon washer 5 and is communicated with the limiting slots 83. The design of the clamping groove 84 enables it to be in clamping fit with the limiting semi-circular convex block 82 to form a stable connection to ensure that the nylon washer 5 is fixed in the correct position, effectively preventing the nylon nut from loosening during vibration or use and ensuring the reliability and safety of the nut body 1.

[0064] Overview of the working principle:

[0065] During the installation process, the nylon washer 5 is placed within the annular boss 3. The limiting slots 83 outside the nylon washer 5 move downward along the clamping strips 81 and are clamped in the clamping grooves 84 through the limiting semi-circular convex blocks 82 to ensure the stability and position accuracy of the nylon washer 5. The clamping connection between the clamping strips 81 and the limiting slots 83 restricts the sliding range of the nylon washer 5, so that the nylon washer 5 will not loosen or rotate along with the rotation of the connecting piece. Through the clamping connection between the limiting semi-circular convex blocks 82 and the clamping grooves 84, the limiting semi-circular convex blocks 82 abut against the nylon washer 5, so that the nylon washer 5 will not slide up and down or loosen, ensuring that the nylon washer 5 obtains a pre-tightening force during the installation process, thereby enhancing the fastening effect and stability of the nylon nut, effectively preventing the nylon nut from loosening during vibration or use, enabling the nylon washer 5 to be correctly positioned and fixed on the nut without being affected by external forces. This design not only provides a safe pre-tightening effect for the nylon washer 5 but also ensures the reliability and stability of the connecting components during long-term use.

[0066] As Figure 2 and Figure 3 shown, in this embodiment, optimally, the number of the limiting slots 83 is the same as that of the clamping strips 81 and they correspond one by one. The limiting slots 83 extend downward to penetrate the nylon washer 5.

[0067] In this technical solution, the number of the limiting slots 83 on the nylon nut is the same as that of the clamping strips 81 and they correspond one by one, which means that each clamping strip 81 has a corresponding limiting slot 83, forming a fixed relationship between them. Each limiting slot 83 extends downward to penetrate the entire nylon washer 5.

[0068] Overview of the working principle:

[0069] During the installation process, the nylon washer 5 is placed in the installation groove 4. The corresponding relationship between the limit slot 83 and the clamping strip 81 ensures that the nylon washer 5 is correctly positioned and fixed on the nut. When the nut starts to be tightened, the limit slot 83 follows the guidance of the clamping strip 81 to ensure that the nylon washer 5 will not be distorted or displaced, thus effectively providing the pre-tightening and fixing functions. The design of the limit slot 83 running through the washer enables the nylon washer 5 to remain stable during installation and use, not easily affected by the external environment or vibration, ensuring the reliability and safety of the connection. The advantage of this design is that it provides a simple and effective method to ensure the stability and functionality of the nylon nut, suitable for various applications that require durability and reliability.

[0070] Embodiment 3:

[0071] This embodiment provides a nylon nut, which, in addition to including the technical solutions of the above embodiment, also has the following technical features.

[0072] As Figure 1 and Figure 2 shown, in this embodiment, optimally, a groove 9 for preventing the wrench from slipping off the nylon nut is provided on the outer side of the nut body 1. There are multiple grooves 9, which are evenly spaced along the circumferential direction.

[0073] As Figure 1 , Figure 2 and Figure 4 shown, in this embodiment, optimally, an extension groove 10 communicating with the groove 9 is provided on the outer side of the hexagonal nut cover 61.

[0074] In this technical solution, when the nylon nut needs to be disassembled, a disassembly tool is used to stably clamp the nut body 1 through the groove 9 and the extension groove 10, preventing the tool from slipping off, so that the connection between the nut and the screw can be effectively and safely disconnected. This not only improves the reliability and service life of the nut, but also enhances its applicability in various engineering and mechanical applications.

[0075] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A nylon nut, characterized in that: include: A nut body (1) is provided with a threaded hole (2) at the center thereof, wherein the threaded hole (2) is used for threaded connection with a screw located on a connected component; An annular boss (3) is arranged on the top surface of the nut body (1); A mounting groove (4) is provided in the annular boss (3); A nylon washer (5) is embedded in the installation groove (4), and the axis of the nylon washer (5) coincides with the axis of the threaded hole (2); A limiting portion (8) is arranged on the inner wall of the installation groove (4) and cooperates with the nylon washer (5) to limit the position of the nylon washer (5) in the installation groove (4) so ​​as to produce a pre-tightening effect during installation; A positioning portion (6) is arranged at the top of the nut body (1) and is used to position the nylon washer (5) and facilitate the removal and replacement of the nylon washer (5); The positioning portion (6) comprises: A hexagonal nut cover (61) is arranged on the top of the nut body (1) and covers the annular boss (3); A top plate (62) is arranged on the top of the hexagonal nut cover (61), and the bottom of the top plate (62) is in contact with the top of the nylon washer (5); An internal thread (63) is provided on the inner wall of the hexagonal nut cover (61); An external thread (64) is arranged on the outer wall of the annular boss (3), and the external thread (64) is threadably matched with the internal thread (63).

2. A nylon nut according to claim 1, characterized in that: A through hole (7) connected to the threaded hole (2) is provided on the top plate (62) of the hexagonal nut cover (61), and the through hole (7) coincides with the axis of the threaded hole (2).

3. A nylon nut according to claim 1, characterized in that: The limiting portion (8) comprises: A plurality of clamping strips (81) are evenly spaced and distributed on the inner wall of the annular boss (3) along the circumferential direction; A limiting semicircular protrusion (82) is arranged on the upper end of the clamping strip (81); A limiting slot (83) is provided on the outside of the nylon gasket (5), and the limiting slot (83) is engaged with the clamping strip (81); The clamping groove (84) is arranged on the outer side of the upper part of the nylon gasket (5), the clamping groove (84) is connected with the limiting slot (83), and the limiting semicircular protrusion (82) is clamped and matched with the clamping groove (84).

4. A nylon nut according to claim 3, characterized in that: The number of the limiting slots (83) is consistent with that of the clamping strips (81), and they correspond one to one. The limiting slots (83) extend downward to pass through the nylon gasket (5).

5. A nylon nut according to claim 1, characterized in that: The outer side of the nut body (1) is provided with a groove (9) for preventing the wrench from slipping off the nylon nut. There are a plurality of grooves (9) which are evenly spaced and distributed in the circumferential direction.

6. A nylon nut according to claim 5, characterized in that: An extension groove (10) communicating with the groove (9) is provided on the outer side of the hexagonal nut cover (61).

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