CN2326786Y - Improved sealing ring - Google Patents

Abstract

The improved sealing ring consists of one metal ring and one rubber ring, and the metal ring has thickness smaller than that of the rubber ring and is embedded in the middle part of the rubber ring and has outer surface exposed to the outer surface of the rubber ring.

Description

An improved sealing ring

The utility model relates to a sealing ring, in particular to a gasket for preventing water seepage arranged between a faucet box body and a water source pipe head.

The utility model is a further improvement aimed at the utility model patent application No. 96218499.3 "a sealing ring" that the applicant previously proposed in China.

As shown in Figures 1 and 2, the sealing ring 5 of the above-mentioned creation is mainly composed of a metal ring 51 and a rubber coating 52, and the metal ring 51 is completely surrounded by the rubber coating 52. And make the formed seal ring 5 form several water-stop protrusions 53 on the upper and lower ends; when the seal ring 5 is placed between the water control valve seat and the water source pipe head and bears the extrusion force of the screw combination, 5. The rigid support of the internal metal ring 51 will avoid twisting and deformation, so that the sealing ring can be ensured in a suitable sealing position, and it can also distribute the compressive stress evenly on all parts of the ring In this way, not only can the service life of the sealing ring be increased, but also the water-stop protrusions 53 on the surface of the rubber coating of the sealing ring can be closely attached to the end surfaces of the screwed components to achieve complete sealing and avoid water seepage.

Although the above-mentioned creation can indeed achieve the originally set creation purpose, and is highly praised by the industry and general users, the applicant is not complacent in view of the industry's rapid research and development of related technologies and spare no effort. , and put more effort into the research and improvement of the original mother case, so as to make it perfect and practical; especially recently, some advanced companies in the same industry, based on the reasons of saving material costs and simplifying the manufacturing process, have made the box body 1 of the water control valve seat from The original copper metal material is changed to plastic material and manufactured by one-piece injection molding; but due to the design of the general water control valve seat box body 1, the peripheral wall 11 of the disc accommodation chamber is thin ( As shown in Figure 1), so its strength is not as good as before after being changed to plastic material; When the upper end is tightly combined, the sealing ring 5 of the original mother case is subjected to up and down pressure, although the overall ring is supported by the metal ring 51 and will not be twisted, but the rubber coating 52 will still move outwards and outwards due to the force. Due to the elastic deformation of the radial protrusion, when the above-mentioned modified plastic case is assembled, the sealing ring 5 often has too much radial deformation and protrusion due to the pressure, which will crack the surrounding wall of the lower end of the case housing chamber. 11, resulting in the damage of the overall water control valve seat box and making it unusable, so the structure of the sealing ring needs to be further improved.

In view of this, the utility model aims at improving the deficiencies of the prior art. Its purpose is to provide a further improved sealing ring, so that when the integral sealing ring is used for screwing between the faucet box body and the water source pipe head When assembling, it not only has the advantages of not being easily distorted and deformed, but also able to withstand huge extrusion force, so as to ensure that the sealing ring is kept in a suitable position, and it can also prevent the rubber ring from protruding and deforming to the outer periphery under pressure. And the phenomenon of supporting the surrounding wall of the box body can be precisely matched and used for the water control valve box body made of plastic material.

The above purpose of the utility model is achieved in the following way: an improved sealing ring is installed between the water control valve seat of the faucet structure and the water source pipe head to prevent water leakage, which is composed of a metal ring And a rubber ring, and the thickness of the metal ring is smaller than the thickness of the rubber ring, and the metal ring is fitted in the middle part of the outer peripheral edge of the rubber ring, and the outer peripheral surface of the metal ring is exposed On the outer peripheral surface of the rubber ring, the advantages of the above-mentioned original design are not easy to distort and deform, and can withstand huge compression force, and it can also avoid radial deformation of the rubber ring of the sealing ring when it is compressed. Protruding to obtain the effect of precise fit.

The section of the metal ring in the utility model is """, "", "", " or "H" type.

The utility model is mainly because a thin metal ring is evenly coated with a layer of rubber material with a suitable thickness, so that when the integral sealing ring is used for screwing and assembling between the faucet box body and the water source pipe head, it can withstand pressure. Squeeze the force without deforming the ring body to ensure that the sealing ring is kept in a suitable position, and because the metal ring in the utility model is fitted in the middle part of the outer periphery of the rubber ring, and the outer peripheral surface of the metal ring is exposed On the outer peripheral surface of the rubber ring, it can avoid the phenomenon that the rubber ring protrudes and deforms to the outer peripheral edge under pressure and supports the peripheral wall of the casing, so that the sealing ring can be precisely matched to the water control valve made of plastic material Therefore, it has more practical performance than known sealing rings.

In order to enable a further understanding of the structure, features and other purposes of the present utility model, the embodiments are described in detail as follows in conjunction with the accompanying drawings:

Fig. 1 is the side part sectional view of the usage embodiment of known sealing ring;

Fig. 2 is the side of the sealing ring of No. 96218499.3 "a kind of sealing ring" patent case

cutaway diagram;

Fig. 3 is a side sectional view of the utility model;

Fig. 4 shows that the sealing ring of Fig. 3 is squeezed and deformed;

Fig. 5 is a side sectional view of the second embodiment of the utility model;

Fig. 6 is a side sectional view of the third embodiment of the utility model;

Fig. 7 is a side sectional view of the fourth embodiment of the utility model;

Fig. 8 is a side sectional view of the fifth embodiment of the present invention.

Please refer to Fig. 3, the seal ring 5 of the utility model embodiment is mainly made up of a metal ring 51 and a rubber ring 52; The ring 52 has an outer ring diameter approximately equal to that of the above-mentioned metal ring 51, and the section of the rubber ring 52 is: the upper end surface has an arc-shaped convex portion 521, and several concentric water-stop protrusions 522 are formed on the lower end surface. , and make the thickness H1 of the metal ring 51 smaller than the thickness H2 of the rubber ring 52; when composed, the metal ring 51 is fitted in the middle part of the outer peripheral edge 523 of the rubber ring 52, so that the outer circumference of the metal ring Surface 511 is exposed outside the rubber ring.

As shown in Figure 4, when the sealing ring 5 of the present invention is placed between the water control valve seat and the water source pipe head and bears the compression force of the screw assembly, the upper and lower end surfaces 521, 522 of the rubber ring 52 The elastic deformation of the sealing ring 5 closely fits the end surface of the screwed component to achieve the purpose of complete sealing to avoid water seepage, and the horizontal plane of the sealing ring 5 is supported by the steel ring 51 embedded to avoid twisting and deformation, and uses The resistance of the metal ring 51 exposed on the outer peripheral surface of the rubber ring 52 prevents the rubber ring from being pressed and protruding from the outer peripheral edge (as shown in Figure 4), causing the thin peripheral wall of the plastic case to be supported. crack.

型或H型(如图5至图8所示)，而其在如前述方式与橡胶环圈嵌合而使用时，则同样可达成本实用新型的上述效能，因此这些金属环截面的改设亦应括属于本实用新型技术方案范畴，特此陈明。Furthermore, according to the extension of the technical concept of the present utility model, the cross section of the metal ring can also be set as -shaped, -shaped, -shaped,

Type or H type (as shown in Fig. 5 to Fig. 8), and when it is used with the rubber ring in the aforementioned manner, it can also achieve the above-mentioned performance of the utility model, so the modification of the section of these metal rings Also should include and belong to the category of the technical solution of the utility model, hereby declare.

To sum up, it can be seen that, in addition to the advantages of being difficult to distort and deform during assembly, and being able to withstand huge squeezing forces, the utility model also embeds the metal ring in the middle part of the outer periphery of the rubber ring, and makes the metal ring The outer peripheral surface of the rubber ring is exposed to the outer peripheral surface of the rubber ring, thereby preventing the rubber ring from protruding and deforming to the outer peripheral edge under pressure, and supporting the peripheral wall of the box body, so that the sealing ring can be precisely matched and used in plastic materials. The water control valve box; therefore, the utility model has more practical performance than the aforementioned known commonly used ones.

Claims (6)

1. improved type seal ring, installed between the water control valve seat and water source tube head of structure for water tap, seepage in order to anti-sealing, it is made up of a metal ring and a rubbery toroidal ring, it is characterized in that: the thickness of this metal ring is less than the thickness of this rubbery toroidal ring, and this metal ring is embedded in the position, outer periphery stage casing of this rubbery toroidal ring, and makes the outer surface of this metal ring open in the outer surface of this rubbery toroidal ring.

2. improved type seal ring according to claim 1 is characterized in that: the cross section of described metal ring is to be " type.

3. improved type seal ring according to claim 1 is characterized in that: the cross section of described metal ring is to be the type.

4. improved type seal ring according to claim 1 is characterized in that: the cross section of described metal ring is to be the  type.

5. improved type seal ring according to claim 1 is characterized in that: the cross section of described metal ring is to be Type.

6. improved type seal ring according to claim 1 is characterized in that: the cross section of described metal ring is to be the H type.

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