Waterproof structure of shell needing threading
By designing a waterproof structure that needs to be threaded in products with high waterproof requirements, and using the combination of glue-covered head and sealing ring, the problem of waterproof sealing at the outgoing wire is solved, achieving efficient waterproofing effect and convenient maintenance process.
Patent Information
- Application Number
- CN202421224817.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The prior art is difficult to achieve effective waterproof sealing at wire outlets in products with high waterproofing requirements, and the traditional sealing method is troublesome to operate and is inconvenient to disassemble.
A waterproof structure that needs to be threaded in the shell is designed, including the shell, wire, glue-covered head and sealing ring. The rubber-covered head is provided on the wire material, and an annular groove is provided on the outer peripheral surface of the rubber-covered head, and a sealing ring is provided on the groove. The sealing ring is closely matched with the through hole to achieve sealing.
This structure not only realizes a highly waterproof seal, but also facilitates installation and disassembly, reducing maintenance costs and improving the overall maintenance efficiency of the equipment.
Smart Images
Figure CN222786149U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wire materials and waterproof products, in particular to a waterproof structure requiring a wire-threading shell. Background Art
[0002] In modern industry and plastic product design, with the continuous advancement of technology and the increasing complexity of the application environment, higher requirements are placed on the waterproof performance of products, especially for products with high waterproof requirements and need to lead out of the product. The traditional sealing method for cables passing through the shell often relies on the use of waterproof tape or simple fillings at the outlet. These methods are prone to sealing failure when used for a long time or in harsh environments, resulting in the intrusion of pollutants such as moisture and dust, thereby affecting the normal operation of the product, shortening its service life, and even causing serious damage.
[0003] In the existing technology, it is relatively difficult to waterproof the wire outlet for products with high waterproof requirements and that need to have wires outlet from the inside of the product. Currently, the conventional waterproofing method for the wire outlet generally adopts the method of spot gluing, that is, using sealant to fix the joint between the wire and the product shell. This method is greatly affected by the gluing process, is cumbersome to operate and is inconvenient to disassemble.
[0004] Therefore, developing a structure that is both easy to install and disassemble and can achieve a high degree of waterproof sealing has become a technical problem that needs to be solved urgently. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a waterproof structure of a housing requiring wire threading, which can be easily installed and disassembled and can achieve a high degree of waterproof sealing.
[0006] The technical solution adopted by the utility model to solve its technical problems is:
[0007] A waterproof structure of a wire-threading shell includes a shell, a wire, a rubber-coated head and a sealing ring. A through hole is opened on one side of the shell, and a rubber-coated head is arranged around the wire. An annular groove is arranged on the outer peripheral surface of the rubber-coated head, and a sealing ring is sleeved on the annular groove. The sealing ring is tightly matched with the through hole. The through hole includes a first cavity and a second cavity from the inside to the outside, the inner diameter of the first cavity is larger than the inner diameter of the second cavity, and the connection between the first cavity and the second cavity is a limiting surface perpendicular to the axis of the through hole. The rubber-coated head includes a first part and a second part along the through hole from the inside to the outside, the inner diameter of the first part is larger than the inner diameter of the second part, and the connection between the first part and the second part is a contact surface perpendicular to the axis of the rubber-coated head, and the limiting surface and the contact surface are abutted.
[0008] Furthermore, the through hole is a circular hole.
[0009] Furthermore, the rubber-coated head is made of elastic rubber material.
[0010] Furthermore, the end of the through hole is chamfered.
[0011] Furthermore, the difference between the inner diameter of the first cavity and the inner diameter of the second cavity is not less than 1 mm.
[0012] The beneficial effects of the utility model are:
[0013] When in use, the rubber-coated head is inserted into the through hole from the inside of the shell until the limit surface and the contact surface are tightly fitted. At this time, the sealing ring in the annular groove will be compressed and deformed, thereby effectively preventing moisture from invading along the wire, significantly improving the product's waterproof level.
[0014] The inner wall of the through hole includes a first cavity and a second cavity from the inside to the outside, and the inner diameter of the first cavity is larger than the inner diameter of the second cavity. This design prevents the rubber head from being pulled out when the wire is taken out of the product during operation. When we want to repair the product or replace the wire, we can directly push the wire with the rubber head into the shell with the through hole to remove the broken wire. This makes replacement and repair easier, reduces maintenance costs, and improves the overall maintenance efficiency of the equipment.
[0015] The through hole is designed to be circular, which naturally matches the shape of most wires. It not only ensures the smooth passage of the wires, but also utilizes the natural advantages of the circular structure, further enhancing the uniformity and stability of the seal. It is suitable for a wide range of wire specifications and improves the versatility and convenience of assembly.
[0016] The rubber-coated head made of elastic rubber material is not only convenient for fixing the wires and assembling the sealing ring, but the combination of the annular groove and the sealing ring also utilizes the elastic restoring force of the rubber material to ensure the tightness of the sealing interface under continuous pressure under various environmental conditions, effectively resisting the risk of water seepage caused by changes in the external environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.
[0018] Figure 1 It is a schematic diagram of the waterproof structure that requires wiring in the casing.
[0019] Figure 2 It is a cross-sectional view of the waterproof structure that requires wiring in the housing.
[0020] The markings in the figure are: 1-housing, 2-wire, 3-rubber head, 4-sealing ring. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings.
[0022] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described below are only used to explain the utility model and are not used to limit the utility model.
[0023] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inside" and "outside" should be understood in a broad sense and are not used to limit the scope of protection of the present invention. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] The utility model provides a waterproof structure of a wire-threading shell, comprising a shell 1, a wire 2, a rubber-coated head 3 and a sealing ring 4. A through hole is opened on one side of the shell 1, and the wire 2 is surrounded by a rubber-coated head 3. The outer peripheral surface of the rubber-coated head 3 is provided with an annular groove, and a sealing ring 4 is sleeved on the annular groove. The sealing ring 4 is tightly matched with the through hole. The through hole comprises a first cavity and a second cavity from the inside to the outside, the inner diameter of the first cavity is larger than the inner diameter of the second cavity, and the connection between the first cavity and the second cavity is a limiting surface perpendicular to the axis of the through hole. The rubber-coated head 3 comprises a first part and a second part along the through hole from the inside to the outside, the inner diameter of the first part is larger than the inner diameter of the second part, and the connection between the first part and the second part is a contact surface perpendicular to the axis of the rubber-coated head 3, and the limiting surface and the contact surface are abutted.
[0025] like Figure 1 As shown, a rubber-coated head 3 is arranged around the wire 2, and an annular groove is arranged on the outer peripheral surface of the rubber-coated head 3. A sealing ring 4 is sleeved on the annular groove. When in use, the rubber-coated head 3 is inserted into the through hole from the inside of the shell 1 until the limiting surface and the contact surface are tightly fitted. At this time, the sealing ring 4 sleeved in the annular groove will be compressed and deformed, thereby achieving the effect of effectively preventing moisture from invading along the wire, and significantly improving the waterproof level of the product.
[0026] Furthermore, the through hole is a circular hole.
[0027] The through hole is designed to be circular, which naturally matches the shape of most wires. It not only ensures the smooth passage of wire 2, but also utilizes the natural advantages of the circular structure, further enhancing the uniformity and stability of the seal. It is suitable for a wide range of wire specifications and improves the versatility and convenience of assembly.
[0028] Furthermore, the rubber-coated head 3 is made of elastic rubber material.
[0029] In this solution, the material of the rubber-coated head 3 can also be plastic, which also has a waterproof effect. However, the plastic material is not good enough in fixing the wire 2 and assembling the sealing ring 4. In this solution, the rubber-coated head 3 made of elastic rubber material is preferably used, which is not only convenient for fixing the wire 2 and assembling the sealing ring 4, but the combination of the annular groove and the sealing ring 4 also utilizes the elastic restoring force of the rubber material to ensure the tightness of the sealing interface under continuous pressure under various environmental conditions, and effectively resist the risk of water seepage caused by changes in the external environment.
[0030] Furthermore, the end of the through hole is provided with a chamfer, and the end of the through hole includes the end of the first cavity, the end of the second cavity, and the connection between the first cavity and the second cavity, that is, the end of the limiting surface. The chamfer is designed to facilitate the introduction of the wire 2 and to provide a certain degree of protection for the rubber-coated head 3.
[0031] Furthermore, the difference between the inner diameter of the first cavity and the inner diameter of the second cavity is not less than 1 mm.
[0032] Since the connection between the first cavity and the second cavity is a limiting surface perpendicular to the axis of the through hole, the function of the limiting surface is to cooperate with the contact surface to achieve a limiting effect. Therefore, the difference between the inner diameter of the first cavity and the inner diameter of the second cavity determines the size of the contact surface. If the difference between the inner diameter of the first cavity and the inner diameter of the second cavity is less than 1mm, it is not conducive to limiting. Therefore, in this scheme, it is preferred that the difference between the inner diameter of the first cavity and the inner diameter of the second cavity is not less than 1mm.
[0033] The above implementation modes are only preferred implementation modes of the present utility model and do not limit the protection scope of the present utility model. Any equivalent changes or equivalent replacements made to the technical solutions on the basis of the technical solutions of the present utility model shall fall within the protection scope of the present utility model. The specific protection scope shall be subject to the claims.
[0034] The waterproof structure of the housing requiring wire threading provided by the utility model has no limitation on its preparation process and treatment method. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A waterproof structure for a wire-threading housing, comprising a housing (1) and a wire (2), wherein a through hole is provided on one side of the housing (1), and the wire (2) passes through the through hole, wherein: It also includes a rubber coating head (3) and a sealing ring (4), wherein the wire (2) is surrounded by the rubber coating head (3), the outer peripheral surface of the rubber coating head (3) is provided with an annular groove, the annular groove is sleeved with a sealing ring (4), the sealing ring (4) is tightly matched with the through hole, the through hole includes a first cavity and a second cavity from the inside to the outside, the inner diameter of the first cavity is larger than the inner diameter of the second cavity, the connection between the first cavity and the second cavity is a limiting surface perpendicular to the axis of the through hole, the rubber coating head (3) includes a first part and a second part from the inside to the outside of the through hole, the inner diameter of the first part is larger than the inner diameter of the second part, the connection between the first part and the second part is a contact surface perpendicular to the axis of the rubber coating head (3), and the limiting surface and the contact surface are in contact with each other; The difference between the inner diameter of the first cavity and the inner diameter of the second cavity is not less than 1 mm.
2. The waterproof structure of the housing requiring wire threading according to claim 1, characterized in that: The through hole is a circular hole.
3. The waterproof structure of the housing requiring wire threading according to claim 1, characterized in that: The rubber-coated head (3) is made of elastic rubber material.
4. The waterproof structure of the housing requiring wire threading according to claim 1, characterized in that: The end of the through hole is chamfered.