CN212775587U

CN212775587U - Rubber ring structure for sealing water pump bearing

Info

Publication number: CN212775587U
Application number: CN202021127207.2U
Authority: CN
Inventors: 黄平; 刘琴
Original assignee: Shanghai Heluge Precision Rubber Co ltd
Current assignee: Shanghai Heluge Precision Rubber Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-03-23
Anticipated expiration: 2030-06-17

Abstract

The utility model provides a rubber circle structure for water pump bearing is sealed belongs to sealing rubber circle technical field. The rubber ring structure for sealing the water pump bearing comprises an inner sealing ring, an outer sealing ring and a connecting ring. The inner side and the outer edge of the inner sealing ring are provided with annular grooves, the inner part of each annular groove is communicated with a guide pipe, the end parts of the guide pipes are provided with one-way valves, one end of each guide pipe penetrates through the inner sealing ring and the outer sealing ring respectively, the one-way valves are arranged on the outer side of the outer sealing ring, and two sides of each connecting ring are connected to the inner sealing ring and the outer sealing ring respectively. The utility model presses the outer sealing ring to make the inner sealing ring fit with the end face of the bearing; meanwhile, gas in the annular groove is discharged from the end part of the one-way valve through the guide pipe, and negative pressure is formed between the annular groove on the inner side of the inner sealing ring and the end surface of the bearing, so that the inner sealing ring is tightly attached to the end surface of the bearing, and the sealing effect is improved.

Description

Rubber ring structure for sealing water pump bearing

Technical Field

The utility model relates to a sealing rubber circle field particularly, relates to a rubber circle structure for water pump bearing is sealed.

Background

The rubber seal ring is an annular cover composed of one or more parts, is fixed on one ferrule or gasket of the bearing and is in contact with the other ferrule or gasket or forms a narrow labyrinth gap to prevent lubricating oil from leaking out and foreign matters from entering.

The sealing rubber ring adopted outside the water pump bearing is mainly a single sheet rubber ring, and the sealing effect is poor due to the single structure.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, the utility model provides a rubber circle structure for water pump bearing is sealed aims at improving the outside sealing rubber circle that adopts of water pump bearing and mainly is single thin slice rubber circle, the relatively poor problem of sealed effect.

The utility model discloses a realize like this:

the utility model provides a rubber circle structure for water pump bearing is sealed, including inner seal circle, external seal circle and connecting ring circle.

The inner side and the outer edge of the inner sealing ring are provided with annular grooves, the inner part of each annular groove is communicated with a guide pipe, the end parts of the guide pipes are provided with one-way valves, one end of each guide pipe penetrates through the inner sealing ring and the outer sealing ring respectively, the one-way valves are arranged on the outer side of the outer sealing ring, two sides of each connecting ring are connected with the inner sealing ring and the outer sealing ring respectively, and through holes with the same inner diameter are formed in the connecting rings, the inner sealing rings and the outer sealing rings.

In an embodiment of the present invention, the inner seal ring and the outer seal ring are close to the outside of one side of the connection ring is an inclined plane, and the inclined plane and the outer ring of the connection ring form a sealed side cavity therebetween.

In an embodiment of the present invention, the inner seal ring has a vertical first through hole formed therein.

In an embodiment of the present invention, the conduit penetrates through the first through hole, and a first sealant layer is injected between the conduit and the first through hole.

In an embodiment of the present invention, a vertical second through hole is disposed inside the outer seal ring.

In an embodiment of the present invention, the conduit penetrates through the second through hole, and a second sealant layer is disposed between the conduit and the second through hole.

In an embodiment of the present invention, the first groove is disposed outside the inner sealing ring.

The utility model discloses an in the embodiment, outer sealing washer bottom is provided with the sand grip, the sand grip is provided with a plurality of groups, and a plurality of groups the sand grip is in outer sealing washer bottom is central symmetry and distributes.

In an embodiment of the present invention, the outer seal ring has a second groove formed therein.

In an embodiment of the present invention, the outer diameter of the inner seal ring is the same as the outer diameter of the outer seal ring.

The utility model has the advantages that: the rubber ring structure for sealing the water pump bearing is obtained through the design, when the rubber ring structure is used, the outer sealing ring is pressed, so that the inner sealing ring is attached to the end face of the bearing; meanwhile, gas in the annular groove is discharged from the end part of the one-way valve through the guide pipe, and negative pressure is formed between the annular groove on the inner side of the inner sealing ring and the end surface of the bearing, so that the inner sealing ring is tightly attached to the end surface of the bearing, and the sealing effect is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a rubber ring for sealing a water pump bearing according to an embodiment of the present invention;

fig. 2 is a schematic view of a vertical cross-section installation structure of a conduit and a check valve according to an embodiment of the present invention;

fig. 3 is a schematic top view of an inner seal ring according to an embodiment of the present invention;

fig. 4 is a schematic bottom view of the outer sealing ring according to the embodiment of the present invention.

In the figure: 100-inner sealing ring; 110-port; 120-an annular groove; 130-a catheter; 140-a one-way valve; 150-a first trench; 160-a first via; 200-an outer sealing ring; 210-a second trench; 220-convex strip; 230-a second via; 300-connecting loops; 310-sealing the side cavity.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a rubber ring structure for sealing a water pump bearing, which includes an inner seal ring 100, an outer seal ring 200 and a connecting ring 300.

Wherein, the inner side of the inner sealing ring 100 and the outer side of the bearing can form a negative pressure cavity, so that the sealing ring is effectively adsorbed and fixed, and a good end face sealing effect is achieved. The connecting ring 300 is used for connecting the inner sealing ring 100 and the outer sealing ring 200, and the cavity formed between the connecting ring 300 and the inner sealing ring 100 and the outer sealing ring 200 enables the side edges of the sealing rings to have good sealing effect.

Referring to fig. 1, 2 and 3, an annular groove 120 is formed on the inner side and the outer edge of the inner sealing ring 100, a conduit 130 is communicated with the inside of the annular groove 120, and a check valve 140 is installed at the end of the conduit 130. Wherein the conduit 130 is a flexible hose. The check valve 140 and the end of the guide tube 130 may also be fixedly installed outside the outer sealing ring 200. The inner seal ring 100 is provided with a vertical first through hole 160. The conduit 130 penetrates the first through hole 160, and a first sealant layer is injected between the conduit 130 and the first through hole 160. The outer sealing ring 200 has a vertical second through hole 230 formed therein. The conduit 130 penetrates through the second through hole 230, and a second sealant layer is disposed between the conduit 130 and the second through hole 230. The guide tube 130, the inner seal ring 100 and the outer seal ring 200 may also be integrally formed. A first groove 150 is formed on the outer side of the inner sealing ring 100; first groove 150 enhances the sealing performance of inner seal ring 100 when inner seal ring 100 is compressed.

Referring to fig. 1, 2 and 4, one end of the conduit 130 penetrates through the inner seal ring 100 and the outer seal ring 200, respectively, and the check valve 140 is disposed outside the outer seal ring 200. The inner seal ring 100 and the outer seal ring 200 have the same outer diameter. The bottom of the outer sealing ring 200 is provided with a convex strip 220, and the outer sealing ring 200 and the convex strip 220 are integrally formed; the raised strips 220 are provided with a plurality of groups, and the plurality of groups of raised strips 220 are distributed at the bottom of the outer sealing ring 200 in a central symmetry manner. The convex strip 220 is used for preventing slipping and is convenient for installing the outer sealing ring 200. The outer side of the outer sealing ring 200 is provided with a second groove 210, and the second groove 210 can enhance the sealing performance of the outer sealing ring 200 when the outer sealing ring 200 is extruded.

Referring to fig. 1 and 2, two sides of the connecting ring 300 are respectively connected to the inner sealing ring 100 and the outer sealing ring 200, and the connecting ring 300, the inner sealing ring 100 and the outer sealing ring 200 are provided with through holes 110 having the same inner diameter. Wherein, the connection ring 300 is integrally formed with the inner seal ring 100 and the outer seal ring 200. The outer portions of the inner seal ring 100 and the outer seal ring 200 on the side close to the connecting ring 300 are both inclined surfaces, and a sealing side cavity 310 is formed between the inclined surfaces and the outer ring of the connecting ring 300. After the outer seal ring 200 is squeezed, the seal side cavity 310 between the outer seal ring 200 and the inner seal ring 100 effectively prevents the outer seal ring 200 from being squeezed to deform during installation, so that a good sealing effect is formed between the side edge of the seal ring and the inner ring of the bearing end face.

The working principle of the rubber ring structure for sealing the water pump bearing is as follows: when in use, the outer sealing ring 200 is pressed, so that the inner sealing ring 100 is attached to the end face of the bearing; meanwhile, the gas in the annular groove 120 is exhausted from the end of the check valve 140 through the conduit 130, and a negative pressure is formed between the annular groove 120 on the inner side of the inner seal ring 100 and the bearing end surface, so that the inner seal ring 100 is tightly attached to the bearing end surface, and the sealing effect is improved. After the outer seal ring 200 is extruded, the sealing side cavity 310 between the outer seal ring 200 and the inner seal ring 100 effectively prevents the outer seal ring 200 from being extruded to deform during installation, so that the side edge of the seal ring forms a good sealing effect between the inner rings of the bearing end faces.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rubber circle structure for water pump bearing is sealed, its characterized in that includes

The inner side and the outer edge of the inner sealing ring (100) are provided with annular grooves (120), the inner parts of the annular grooves (120) are communicated with guide pipes (130), and the end parts of the guide pipes (130) are provided with one-way valves (140);

one end of the conduit (130) penetrates through the inner sealing ring (100) and the outer sealing ring (200) respectively, and the one-way valve (140) is arranged outside the outer sealing ring (200);

the connecting ring comprises a connecting ring (300), two sides of the connecting ring (300) are respectively connected to the inner sealing ring (100) and the outer sealing ring (200), and through holes (110) with the same inner diameter are formed in the connecting ring (300), the inner sealing ring (100) and the outer sealing ring (200).

2. The rubber ring structure for the bearing seal of the water pump as recited in claim 1, wherein the outer portions of the inner seal ring (100) and the outer seal ring (200) on the side close to the connecting ring (300) are both inclined surfaces, and a seal side cavity (310) is formed between the inclined surfaces and the outer ring of the connecting ring (300).

3. The rubber ring structure for the bearing seal of the water pump as recited in claim 1, wherein the inner seal ring (100) is internally provided with a vertical first through hole (160).

4. The rubber ring structure for the bearing seal of the water pump as claimed in claim 3, wherein the conduit (130) penetrates through the first through hole (160), and a first sealant layer is injected between the conduit (130) and the first through hole (160).

5. The rubber ring structure for the water pump bearing seal is characterized in that a vertical second through hole (230) is formed in the outer sealing ring (200).

6. The rubber ring structure for the bearing seal of the water pump as claimed in claim 5, wherein the conduit (130) penetrates through the second through hole (230), and a second sealant layer is injected between the conduit (130) and the second through hole (230).

7. The rubber ring structure for the bearing seal of the water pump as claimed in claim 1, wherein the outer side of the inner seal ring (100) is provided with a first groove (150).

8. The rubber ring structure for sealing the water pump bearing according to claim 1, wherein a raised line (220) is arranged at the bottom of the outer sealing ring (200), a plurality of groups of raised lines (220) are arranged, and the plurality of groups of raised lines (220) are distributed at the bottom of the outer sealing ring (200) in a central symmetry manner.

9. The rubber ring structure for the bearing seal of the water pump as claimed in claim 1, wherein a second groove (210) is formed on the outer side of the outer sealing ring (200).

10. The rubber ring structure for a water pump bearing seal according to claim 1, wherein the outer diameters of the inner seal ring (100) and the outer seal ring (200) are the same.