Injection molding sealing ring

Abstract

The utility model discloses an injection molding sealing ring, and relates to the field of sealing rings, the injection molding sealing ring comprises an outer sealing ring, the inner wall of the outer sealing ring is fixedly connected with a gasket, the side, away from the outer sealing ring, of the gasket is fixedly connected with an inner sealing ring, and one face of the outer sealing ring is fixedly connected with an auxiliary spring; the ends, away from the outer sealing ring, of the auxiliary springs are fixedly connected with a connecting circular ring, a groove is formed in the outer surface of the outer sealing ring, telescopic rods fixedly connected with the outer sealing ring and the surface of the connecting circular ring are fixedly arranged between the two auxiliary springs, and an auxiliary mechanism used for improving the scene adaptability of the sealing ring is arranged on the outer surface of the outer sealing ring. The auxiliary spring and the connecting circular ring are matched with each other, additional elastic support can be provided for the sealing ring, it is ensured that the sealing ring keeps good sealing performance in a dynamic or high-pressure environment, the connecting circular ring is used for ensuring that elastic force of the spring is evenly distributed so as to prevent sealing failure during dynamic sealing of the sealing ring, and the service life of the sealing ring is prolonged. And the working medium leakage is caused.

Description

TECHNICAL FIELD

[0001] The application relates to the field of sealing rings, in particular to an injection molding sealing ring. BACKGROUND

[0002] The injection molding sealing ring is a sealing element manufactured through an injection molding process and is widely applied to various industrial fields such as automobiles, electronics, household appliances, medical equipment and the like. The electronic water pump is a key component in the cooling system of an automobile and is mainly applied to the main cooling system of an internal combustion engine, the cooling circuit of a turbocharger and the intake intercooling system and is also applied to the driving system of a new energy automobile and the thermal management system of a power battery. The electronic water pump can realize closed-loop control of the temperature of the cooling system according to real-time working condition requirements, ensures the reliability of the cooled components and reduces energy consumption. The electronic water pump comprises a ball valve part, a sealing ring is arranged between the ball valve and the connecting pipeline, the injection molding sealing ring has excellent sealing performance, chemical corrosion resistance, temperature resistance and wear resistance and can effectively prevent the leakage of liquid, gas or dust.

[0003] However, the existing sealing ring will be abraded or fail to seal due to friction in dynamic sealing (such as rotation or reciprocating motion) applications. The sealing failure will cause the leakage of working medium, which not only wastes resources but also pollutes the environment. Moreover, the traditional sealing ring cannot restore its original state after being pressed and the sealing performance thereof rapidly decreases with the use time, resulting in the leakage of medium (such as oil, water, gas and the like). CONTENT OF THE UTILITY MODEL

[0004] In order to improve the problems that the sealing ring will be abraded or fail to seal due to friction in dynamic sealing applications and the sealing ring cannot restore its original state after being pressed, the application provides an injection molding sealing ring.

[0005] The injection molding sealing ring provided by the application adopts the following technical scheme:

[0006] The injection molding sealing ring comprises an outer sealing ring, the inner wall of the outer sealing ring is fixedly connected with a gasket, the side of the gasket away from the outer sealing ring is fixedly connected with an inner sealing ring, one side of the outer sealing ring is fixedly connected with an auxiliary spring, the end of the auxiliary spring away from the outer sealing ring is fixedly connected with a connecting circular ring, the outer surface of the outer sealing ring is provided with a groove, and a telescopic rod fixedly connected with the surface of the outer sealing ring and the connecting circular ring is arranged between the two auxiliary springs.

[0007] The outer surface of the outer sealing ring is provided with an auxiliary mechanism for improving the scene adaptability of the sealing ring.

[0008] By adopting the above technical scheme, the gasket is located between the outer sealing ring and the inner sealing ring, and plays a supporting and buffering role, the inner sealing ring cooperates with the outer sealing ring and the gasket to provide an additional sealing layer, ensures the sealing effect, the auxiliary spring is used to provide additional elastic support, ensures that the sealing ring maintains good sealing performance in a dynamic or high-pressure environment, the connecting ring is used to fix the auxiliary spring and ensures that the elastic force of the spring is evenly distributed, the groove can also be used as a pressure buffer space to absorb pressure fluctuations or vibrations, and the auxiliary mechanism is used to improve the scene adaptability of the sealing ring and improve its performance in a specific environment.

[0009] Preferably, the auxiliary mechanism includes a first circular ring fixedly connected to the outer surface of the outer sealing ring, and a circular hole is formed in the outer surface of the first circular ring.

[0010] By adopting the above technical scheme, the first circular ring is used to store lubricant, and the circular hole can be used to release the lubricant, further improving the sealing effect.

[0011] Preferably, the outer surface of the outer sealing ring is provided with an oil absorption pad.

[0012] By adopting the above technical scheme, the oil absorption pad is used to absorb excess lubricant, preventing the lubricant from leaking or polluting the environment.

[0013] Preferably, the outer surface of the outer sealing ring is fixedly connected with a second circular ring, and a circular hole is formed in the outer surface of the second circular ring.

[0014] By adopting the above technical scheme, the second circular ring is used to store lubricant, and the circular hole can be used to release the lubricant, further improving the sealing effect.

[0015] Preferably, the outer surface of the outer sealing ring is fixedly connected with an oil absorption pad.

[0016] By adopting the above technical scheme, the oil absorption pad is used to absorb excess lubricant or medium, preventing the lubricant from leaking or polluting the environment.

[0017] Preferably, the inner portion of the outer sealing ring is provided with a cavity.

[0018] By adopting the above technical scheme, the cavity is used as a buffer space to absorb pressure fluctuations or vibrations.

[0019] Preferably, the inner wall of the cavity is provided with a contact ring.

[0020] By adopting the above technical scheme, the contact ring is used to detect the working condition of the sealing ring.

[0021] Preferably, the inner portion of the gasket is provided with a cavity.

[0022] By adopting the technical scheme, the cavity two can be used as a pressure buffering space to absorb pressure fluctuation or vibration.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. By using the cooperation between the auxiliary spring and the connecting ring, additional elastic support can be provided for the sealing ring to ensure that the sealing ring maintains good sealing performance in a dynamic or high-pressure environment, and the connecting ring is used to ensure that the elastic force of the spring is evenly distributed to prevent the sealing ring from failing to seal during dynamic sealing, thereby causing leakage of the working medium;

[0025] 2. By means of the lubricant stored in the ring one and the ring two, the lubricant is released through the circular hole when the ring one and the ring two are pressed to form a lubricating film, thereby reducing the friction and wear of the sealing ring, and by means of the oil absorption pad, the excess lubricant is absorbed to prevent it from leaking to the outside of the equipment or into the working medium, thereby prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present application;

[0027] Figure 2 is a schematic diagram of the connection relationship of the ring one of the present application;

[0028] Figure 3 is a schematic diagram of the internal structure of the gasket of the present application.

[0029] Reference signs: 1, outer sealing ring; 2, gasket; 3, inner sealing ring; 4, groove; 5, auxiliary spring; 6, connecting ring;

[0030] 7, auxiliary mechanism; 71, ring one; 72, circular hole one; 73, oil absorption pad one; 74, ring two; 75, circular hole two; 76, oil absorption pad two; 77, contact ring; 78, cavity one; 79, cavity two;

[0031] 8, telescopic rod. DETAILED DESCRIPTION

[0032] The following will be described in detail in combination with the accompanying Figures 1-3 The present application will be further described in detail.

[0033] The present application discloses a kind of injection sealing rings.

[0034] Reference Figure 1The utility model provides an injection sealing ring, including outer sealing ring 1, sealing ring is made of composite material, for example, reinforcing fiber (such as glass fiber or carbon fiber) is added in PVDF or PFA, to improve the mechanical strength and temperature resistance of sealing ring, gasket 2 is fixedly connected in the inner wall of outer sealing ring 1, the inner wall of gasket 2 is fixedly connected with inner sealing ring 3, and inner sealing ring 3 is located at the side away from outer sealing ring 1, gasket 2 is fixedly connected between outer sealing ring 1 and inner sealing ring 3, to increase the overall strength of sealing ring, prolong the service life of sealing ring, auxiliary spring 5 is fixedly connected in the bottom surface of outer sealing ring 1, the bottom of auxiliary spring 5 is fixedly connected with connecting circular ring 6, and connecting circular ring 6 is located at the side away from outer sealing ring 1, and connecting circular ring 6 and auxiliary spring 5 are located in the bottom surface of outer sealing ring 1, and outer sealing ring 1 is fixedly connected with connecting circular ring 6 between the bottom surface of outer sealing ring 1, and telescopic rod 8 is fixedly arranged between two adjacent auxiliary spring 5, to prevent auxiliary spring 5 from deviating when being compressed, recess 4 is arranged in the middle section of the outer surface of outer sealing ring 1, and through the cooperation between auxiliary spring 5, connecting circular ring 6 and gasket 2, sealing ring can better adapt to dynamic or high pressure environment. The material of telescopic rod 8 is corrosion-resistant silica gel material, and the silica gel material has hardness to realize the limiting and guiding effect, and can adopt the silica gel of DO Corning C6 series.

[0035] In high pressure or dynamic application (such as rotation or reciprocating motion), sealing ring can be subjected to greater pressure or vibration, when extruding outer sealing ring 1, auxiliary spring 5 is also extruded, then through the elastic force, the compression deformation of sealing ring can be compensated, to ensure that sealing ring is always closely attached to the sealing surface, prevents leakage and in high pressure environment, connecting circular ring 6 can evenly transmit pressure to gasket 2 and outer sealing ring 1 through the cooperation with auxiliary spring 5, to ensure that the overall stress of sealing ring is uniform, avoids local stress concentration.

[0036] Reference Figure 2 , Figure 3The auxiliary mechanism 7 is arranged on the outer surface of the outer sealing ring 1, the upper middle end of the outer sealing ring 1 is fixedly connected with a ring one 71, the ring one 71 is hollow, and the ring one 71 is internally provided with lubricant, a plurality of circular holes one 72 are arranged at the center of the arc surface of the ring one 71, and the circular holes one 72 are used for spraying the lubricant, an oil absorption pad one 73 is fixedly connected to the outer surface of the upper end of the outer sealing ring 1, and the oil absorption pad one 73 is located above the ring one 71, a ring two 74 is fixedly connected to the lower middle end of the outer sealing ring 1, and the ring two 74 is hollow, the ring two 74 is internally provided with lubricant, a plurality of circular holes two 75 are arranged at the center of the arc surface of the ring two 74, an oil absorption pad two 76 is fixedly connected to the outer surface of the lower end of the outer sealing ring 1, and the oil absorption pad two 76 is located below the ring two 74, a groove 4 is arranged inwardly in the middle part of the outer sealing ring 1, and the groove 4 is located between the ring one 71 and the ring two 74, the oil absorption pad one 73 and the oil absorption pad two 76 are polyurethane (PU) foams; in an initial state, the lubricant in the ring one 71 and the ring two 74 cannot flow out of the circular holes one 72 and the circular holes two 75, and when the ring one 71 and the ring two 74 are extruded to deform, the lubricant flows out of the circular holes one 72 and the circular holes two 75.

[0037] When the outer sealing ring 1 is extruded, the outer sealing ring 1 deforms, and then the ring one 71 and the ring two 74 are extruded to deform, because the ring one 71 and the ring two 74 are hollow and internally provided with lubricant, when the ring one 71 and the ring two 74 are extruded to deform, the lubricant flows out of the circular holes one 72 and the circular holes two 75, and is used for the friction and wear of the sealing ring.

[0038] The cavity one 78 is arranged in the inner part of the outer sealing ring 1, the inner wall middle part of the cavity one 78 is fixedly connected with a contact ring 77, and the inwardly recessed arc surface of the groove 4 is located at the same height, and the cavity two 79 is arranged in the inner part of the gasket 2, and the cross section of the cavity two 79 is V-shaped.

[0039] The V-shaped cavity has multiple functions of pressure buffering, enhanced elasticity and stress concentration reduction, and the geometric advantage of the V-shaped cross section enables the cavity two 79 to adapt to different working environments, and improves the overall performance and service life of the sealing ring.

[0040] The implementation principle of the injection molding sealing ring in the embodiment of the application is as follows:

[0041] In use, the worker installs one end of the connecting ring 6 inwardly at a required position, checks whether the sealing ring completely enters the installation groove, and whether the sealing ring is twisted, turned over or partially protruded;

[0042] When the sealing ring is subjected to greater pressure or vibration, the compression deformation of the sealing ring can be compensated by the elastic force of the auxiliary spring 5, preventing leakage. When the outer sealing ring 1 is subjected to extrusion, the lubricant in the annular ring 71 and the annular ring 74 will flow out of the circular hole 72 and the circular hole 75, and the oil absorbing pad 73 and the oil absorbing pad 76 will absorb the excess lubricant, and the groove 4 can accommodate the lubricant flowing out of the circular hole 72 and the circular hole 75, ensuring that the sealing ring maintains a good lubrication state during long-term operation.

[0043] The above is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art can make various modifications and changes to the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An injection molded seal, characterized by: The utility model relates to a sealing ring, including outer sealing ring (1), the inner wall of outer sealing ring (1) is fixedly connected with washer (2), the side away from outer sealing ring (1) of washer (2) is fixedly connected with inner sealing ring (3), one side of outer sealing ring (1) is fixedly connected with auxiliary spring (5), one end away from outer sealing ring (1) of auxiliary spring (5) is fixedly connected with connecting circular ring (6), the outer surface of outer sealing ring (1) is equipped with recess (4), and the fixedly connected with the surface solid of outer sealing ring (1) connecting circular ring (6) of two auxiliary spring (5) is equipped with telescopic link (8) between. The outer surface of the outer sealing ring (1) is provided with an auxiliary mechanism (7) for improving the scene adaptability of the sealing ring.

2. A molded seal ring according to claim 1, wherein: The auxiliary mechanism (7) includes a circular ring I (71) fixedly connected to the outer surface of the outer sealing ring (1), and a circular hole I (72) is formed in the outer surface of the circular ring I (71).

3. A molded seal ring according to claim 2, wherein: An oil absorption pad I (73) is arranged on the outer surface of the outer sealing ring (1).

4. The injection molded seal ring of claim 1, wherein: A circular ring II (74) is fixedly connected to the outer surface of the outer sealing ring (1), and a circular hole II (75) is formed in the outer surface of the circular ring II (74).

5. A molded seal ring according to claim 4, wherein: An oil absorption pad II (76) is fixedly connected to the outer surface of the outer sealing ring (1).

6. The injection molded seal ring of claim 1, wherein: A cavity I (78) is formed in the inner portion of the outer sealing ring (1).

7. A molded seal ring according to claim 6, wherein: A contact ring (77) is arranged on the inner wall of the cavity I (78).

8. The injection molded seal ring of claim 1, wherein: A cavity II (79) is formed in the inner portion of the washer (2).

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