Waterproof nut

By introducing a reinforcement mechanism into the waterproof nut and utilizing the design of a traction spring and a limiting plate, the problem of loose connection between the bolt and the nut is solved, achieving better waterproofing effect and extending service life.

CN223483127UActive Publication Date: 2025-10-28TIANJIN TIANLONG DELENG MOLDING PARTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422828546.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-10-28
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

There are gaps in the connection between existing waterproof nuts and bolts, and there is a lack of reinforcement structure, which makes the connection easy to loosen, affecting the waterproof effect and service life.

Method used

A waterproof nut is designed, which includes a reinforcement mechanism, including a traction spring and a limiting plate. A tight connection between the bolt and the nut is achieved through a sealing ring and a fastening bolt. The elastic force of the traction spring is used for clamping and fixing, and the sealing is performed in combination with a sealing ring and a sealing gasket.

Benefits of technology

The connection tightness between the bolt and the nut is improved, the waterproof effect is enhanced, loosening is avoided, the service life is extended, and welding debris is prevented from affecting the internal thread connection.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223483127U_ABST
    Figure CN223483127U_ABST
Patent Text Reader

Abstract

The utility model discloses a waterproof nut, specifically relates to nut technical field, including waterproof nut body, also including reinforcing mechanism, waterproof nut body includes nut main part, the top inner wall of nut main part is equipped with the placing groove, reinforcing mechanism includes two traction spring, the traction spring is equipped with the placing groove. The two traction springs are arranged at the two ends of the inner wall of the bottom of the nut body respectively, limiting plates are installed at one ends of the two traction springs, sealing rings are arranged at the tops of the inner sides of the two limiting plates, and fastening bolts are arranged between the outer sides of the limiting plates and the inner wall of the nut body. The waterproof nut body has a good waterproof effect through the nut body which is integrally welded and formed, the sealing ring can seal connection between the bolt and the nut body, the fastening bolt can push the limiting plate to clamp the bolt, and meanwhile the sealing ring can be supported. And the connecting position between the bolt and the nut main body has a good waterproof effect.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of nut technology, specifically to a waterproof nut. Background Technology

[0002] A nut is a fastener that is screwed onto a bolt or threaded rod to secure a fastener. It is an essential component in all manufacturing machinery. Based on the material, nuts are classified into several types, including carbon steel, stainless steel, and non-ferrous metals (such as copper).

[0003] A waterproof nut, disclosed in CN216642744U, is applied in the field of nut technology. It solves the problems of water droplets entering the product through the connection between the screw and nut in humid or rainy weather, and the nut and screw being prone to rust and corrosion under prolonged use in harsh environments, reducing their service life; and the nut becoming difficult to disassemble after extended use. The nut includes a nut body and a tapered thread set in the inner hole of the nut body. The tapered thread specification is 1 / 2 NPT, and the outer surface of the nut is stepped. It has a waterproof function, and after prolonged use, its interior and mating components are less prone to rust and corrosion, extending its service life.

[0004] The shortcomings of existing technology: During use, existing waterproof nuts have gaps at the connection point with bolts and lack a structure to reinforce the bolts, which makes the connection between the bolt and nut prone to loosening. At the same time, the connection point between the bolt and nut does not have a good waterproof effect, which in turn affects the service life of the waterproof nuts. Utility Model Content

[0005] Therefore, this utility model provides a waterproof nut to solve the problem in the prior art where the connection between the bolt and nut is prone to loosening due to the lack of a reinforcing structure at the connection point, thus failing to achieve waterproofing and affecting the nut's service life.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waterproof nut, comprising a waterproof nut body, and further comprising:

[0007] The reinforcement mechanism is located on the inner bottom of the waterproof nut body and is used to reinforce the connection between the waterproof nut body and the bolt.

[0008] The waterproof nut body includes a nut body, the top inner wall of the nut body is provided with a placement groove, and a sealing gasket is movably installed on the inner wall of the placement groove;

[0009] The reinforcement mechanism includes two traction springs, which are respectively disposed at both ends of the bottom inner wall of the nut body. A limiting plate is fixedly installed at the end of each traction spring away from the inner wall of the nut body. A sealing ring is provided on the top inner side of the two limiting plates, and a fastening bolt is provided between the outer side of the limiting plate and the inner wall of the nut body.

[0010] Preferably, the waterproof nut body includes a mounting groove, which is formed on the inner wall of the bottom of the nut body, and fixing holes penetrating the nut body are formed at both ends of the inner wall of the mounting groove.

[0011] Preferably, the two ends of the inner wall of the mounting groove are respectively fixedly connected to two traction springs, and a support groove is provided on the top of the opposite end of the two limiting plates.

[0012] Preferably, the inner walls of the two support grooves are movably connected to the bottom ends of the sealing ring, and the outer diameter of the sealing ring is the same as the inner diameter of the nut body.

[0013] Preferably, the two fixing holes are respectively threaded to the outer wall of the two fastening bolts, and the ends of the two fastening bolts away from the fixing holes are respectively connected to the outer side of the adjacent limiting plate. The fastening bolts are movably inserted into the inner side of the adjacent traction spring.

[0014] Preferably, the top cross-section of the limiting plate is configured as a fan-shaped structure, and the inner diameter of the limiting plate is the same as the inner diameter of the sealing ring.

[0015] Preferably, the inner diameter of the sealing gasket is the same as the inner diameter of the placement groove, and the outer diameter of the sealing gasket is the same as the outer diameter of the placement groove.

[0016] Preferably, the height of the limiting plate is the same as the height of the mounting groove, and the front vertical section of the sealing ring is set as an L-shaped structure.

[0017] The present invention has the following advantages:

[0018] 1. This utility model features an integrally welded ring-shaped nut body, which provides excellent waterproofing. The sealing ring seals the connection between the bolt and the nut body. Simultaneously, the limiting plate, under the elastic force of the traction spring, clamps and fixes the bolt while supporting the sealing ring, resulting in a tighter connection between the bolt and the nut body and more stable sealing. Furthermore, the fastening bolt passes through the fixing hole and abuts against the outer wall of the adjacent limiting plate, ensuring stability during clamping. This, in turn, provides excellent waterproofing for the nut body, preventing loosening at the connection between the nut body and the bolt and extending the service life of the nut body.

[0019] 2. The present invention can prevent the debris generated during the welding process from entering the internal thread of the nut body and affecting the subsequent connection between the internal thread and the bolt by setting the placement groove. At the same time, the sealing gasket can seal the placement groove, which can prevent residual water stains from appearing on the inner wall of the placement groove and prevent water stains from affecting the nut body. Attached Figure Description

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a front vertical sectional view of the present invention;

[0024] Figure 3 This utility model Figure 2 Enlarged view of part A;

[0025] Figure 4 This is an exploded three-dimensional view of the waterproof nut body of this utility model;

[0026] Figure 5 This is an exploded three-dimensional view of the reinforcement mechanism of this utility model.

[0027] In the diagram: 1. Waterproof nut body; 101. Nut body; 102. Placement groove; 103. Sealing gasket; 104. Mounting groove; 105. Fixing hole;

[0028] 2. Reinforcing mechanism; 201. Traction spring; 202. Limiting plate; 203. Support groove; 204. Sealing ring; 205. Fastening bolt. Detailed Implementation

[0029] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0030] Refer to the instruction manual appendix Figure 1 This embodiment of a waterproof nut includes a waterproof nut body 1, and further includes:

[0031] The reinforcement mechanism 2 is located on the inner bottom of the waterproof nut body 1 and is used to reinforce the connection between the waterproof nut body 1 and the bolt.

[0032] To ensure the waterproof nut body 1 has a good waterproof effect, such as Figure 1-2 and Figure 4 As shown, the waterproof nut body 1 includes a nut body 101. A placement groove 102 is provided on the inner wall of the top of the nut body 101. A sealing gasket 103 is movably installed on the inner wall of the placement groove 102. The nut body 101 is integrally formed by ring welding, which gives it a good waterproof effect. At the same time, the placement groove 102 can prevent welding debris from entering the internal thread of the nut body 101.

[0033] To ensure a tighter connection between the waterproof nut body 1 and the bolt, such as Figure 1-3 and Figure 5 As shown, the reinforcement mechanism 2 includes two traction springs 201, which are respectively disposed at both ends of the bottom inner wall of the nut body 101. A limiting plate 202 is fixedly installed at the end of each traction spring 201 away from the inner wall of the nut body 101. A sealing ring 204 is provided on the top inner side of the two limiting plates 202. A fastening bolt 205 is provided between the outer side of the limiting plate 202 and the inner wall of the nut body 101. The connection between the bolt and the nut body 101 can be reinforced by the sealing ring 204. Under the elastic force of the traction springs 201, the limiting plate 202 can clamp the outer wall of the bolt and fix the sealing ring 204, so that the connection between the nut body 101 and the bolt also has a good waterproof effect.

[0034] To facilitate the installation of the reinforcing mechanism 2 by the nut body 101, such as Figure 1-4As shown, the waterproof nut body 1 includes a mounting groove 104, which is opened on the inner wall of the bottom of the nut body 101. Fixing holes 105 penetrating the nut body 101 are opened at both ends of the inner wall of the mounting groove 104. The reinforcement mechanism 2 can be installed and fixed through the mounting groove 104, so that the reinforcement mechanism 2 can stably reinforce the connection between the nut body 101 and the bolt.

[0035] To ensure that the sealing ring 204 can stably seal the connection between the nut body 101 and the bolt, such as Figure 2-5 As shown, the two ends of the inner wall of the mounting groove 104 are fixedly connected to two traction springs 201 respectively. The top of the opposite end of the two limiting plates 202 is provided with a support groove 203. The inner walls of the two support grooves 203 are movably connected to the bottom ends of the sealing ring 204 respectively. The outer diameter of the sealing ring 204 is the same as the inner diameter of the nut body 101. The support groove 203 on the top of the limiting plate 202 can support and limit the sealing ring 204. At the same time, the limiting plate 202 can clamp the outer wall of the bolt, making the connection between the bolt and the nut body 101 tighter, and also making the connection position between the bolt and the nut body 101 have a good waterproof effect.

[0036] To ensure the stability of the limiting plate 202 during clamping, such as Figure 2-5 As shown, the two fixing holes 105 are respectively threaded to the outer wall of the two fastening bolts 205. The ends of the two fastening bolts 205 away from the fixing holes 105 are respectively connected to the outer side of the adjacent limiting plate 202. The fastening bolts 205 are movably inserted into the inner side of the adjacent traction spring 201. The fixing holes 105 can be used to install and fix the fastening bolts 205. The fastening bolts 205 can be connected to the adjacent limiting plate 202, so that the limiting plate 202 remains stable during clamping and limiting.

[0037] To ensure the stability of the sealing ring 204 and the sealing gasket 103 during use, such as Figure 2 and Figure 4-5 As shown, the top view cross section of the limiting plate 202 is set as a fan-shaped structure. The inner diameter of the limiting plate 202 is the same as the inner diameter of the sealing ring 204. The inner diameter of the sealing gasket 103 is the same as the inner diameter of the placement groove 102. The outer diameter of the sealing gasket 103 is the same as the outer diameter of the placement groove 102. The height of the limiting plate 202 is the same as the height of the mounting groove 104. The front view vertical section of the sealing ring 204 is set as an L-shaped structure. The sealing gasket 103 can seal the placement groove 102. The limiting plate 202 can support and limit the sealing ring 204, so that the sealing gasket 103 and the sealing ring 204 remain stable during use.

[0038] During the production of the waterproof nut body 1, the nut body 101 is integrally formed by ring welding. The placement groove 102 prevents welding debris from entering the internal thread of the nut body 101 and affecting its use. When using the nut body 101, the sealing gasket 103 is installed on the inner wall of the placement groove 102 to seal it. Then, the sealing ring 204 is inserted into the bottom inner side of the nut body 101. A bolt is then inserted into the inner wall of the nut body 101 and the inner wall of the sealing ring 204, allowing the copper plate to connect to the car chassis. Simultaneously, the sealing ring 204 seals and reinforces the connection between the bolt and the nut body 101. During the connection process, the bolt compresses the limiting plate 202, causing the two limiting plates 202 to move towards both ends, thereby causing the two traction springs 201 to contract. When the bolt is inserted... After connection, the limiting plate 202, under the elastic force of the traction spring 201, can clamp and limit the outer wall of the bolt. At the same time, the support groove 203 on the top of the two limiting plates 202 can support and limit the bottom of both ends of the sealing ring 204. Then, the fastening bolt 205 is threaded into the inner wall of the adjacent fixing hole 105 and abuts against the outer wall of the adjacent limiting plate 202, so that the limiting plate 202 can stably clamp and limit the bolt. At the same time, the sealing ring 204 can remain stable in the gap between the bolt and the nut body 101, thereby making the connection between the bolt and the nut body 101 tighter. It also makes the connection position between the bolt and the nut body 101 have a good waterproof effect, so that the waterproof nut body 1 has a good waterproof effect. This embodiment specifically solves the problem that the connection position between the waterproof nut and the bolt is prone to loosening and the waterproof effect is poor in the prior art.

[0039] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A waterproof nut, comprising a waterproof nut body (1), characterized in that: The waterproof nut body (1) includes a nut body (101), and a placement groove (102) is provided on the inner wall of the top of the nut body (101). A sealing gasket (103) is movably installed on the inner wall of the placement groove (102). It also includes a reinforcement mechanism (2), which is located on the inner side of the bottom of the waterproof nut body (1) and is used to reinforce the connection between the waterproof nut body (1) and the bolt; The reinforcement mechanism (2) includes two traction springs (201). The two traction springs (201) are respectively disposed at both ends of the bottom inner wall of the nut body (101). A limiting plate (202) is fixedly installed at the end of each of the two traction springs (201) away from the inner wall of the nut body (101). A sealing ring (204) is provided on the top inner side of the two limiting plates (202). A fastening bolt (205) is provided between the outer side of the limiting plate (202) and the inner wall of the nut body (101).

2. A waterproof nut according to claim 1, characterized in that: The inner diameter of the sealing gasket (103) is the same as the inner diameter of the placement groove (102), and the outer diameter of the sealing gasket (103) is the same as the outer diameter of the placement groove (102).

3. A waterproof nut according to claim 1, characterized in that: The waterproof nut body (1) also includes a mounting groove (104), which is opened on the bottom inner wall of the nut body (101). Fixing holes (105) penetrating the nut body (101) are opened at both ends of the inner wall of the mounting groove (104).

4. A waterproof nut according to claim 3, characterized in that: The two ends of the inner wall of the mounting groove (104) are respectively fixedly connected to two traction springs (201), and the top of the opposite end of the two limiting plates (202) is provided with a support groove (203).

5. A waterproof nut according to claim 4, characterized in that: The inner walls of the two support grooves (203) are movably connected to the bottom ends of the sealing ring (204), and the outer diameter of the sealing ring (204) is the same as the inner diameter of the nut body (101).

6. A waterproof nut according to claim 3, characterized in that: The two fixing holes (105) are respectively threaded to the outer wall of the two fastening bolts (205), and the ends of the two fastening bolts (205) away from the fixing holes (105) are respectively connected to the outer side of the adjacent limiting plate (202). The fastening bolts (205) are movably inserted into the inner side of the adjacent traction spring (201).

7. A waterproof nut according to claim 1, characterized in that: The top view cross section of the limiting plate (202) is set as a fan-shaped structure, and the inner diameter of the limiting plate (202) is the same as the inner diameter of the sealing ring (204).

8. A waterproof nut according to claim 3, characterized in that: The height dimension of the limiting plate (202) is the same as the height dimension of the mounting groove (104), and the front vertical section of the sealing ring (204) is set as an L-shaped structure.