Composite rubber sealing ring

Abstract

The utility model discloses a composite rubber sealing ring which comprises an outer rubber ring layer and a built-in mounting ring arranged in the middle of the outer rubber ring layer. Inserting connecting inner columns are arranged on the outer sides of the first connecting springs, the inserting connecting inner columns and the built-in mounting ring are of an integrated structure, when the connecting outer columns downwards extrude slope-shaped buckling blocks, the slope-shaped buckling blocks can retract inwards, and when the connecting outer columns downwards move to the lower sides of the slope-shaped buckling blocks, the slope-shaped buckling blocks can retract inwards. After the rubber sealing ring is improved, when the rubber sealing ring is subjected to external force, the external force is favorably counteracted through the counter-acting force of the first connecting spring, so that the deformation of the mounting ring caused by the external force is recovered, and the service life of the rubber sealing ring is prolonged. Therefore, the phenomenon that the sealing effect of the rubber sealing ring is affected by a large gap between the sealing ring and a workpiece due to the fact that the rubber sealing ring is prone to deformation due to the influence of external force is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field related to sealing rings, and in particular relates to a composite rubber sealing ring. Background Art

[0002] The sealing ring, also known as the oil seal, is an annular device composed of one or more parts, fixed on a ring or washer on the bearing, and in contact with or forming a narrow labyrinth gap with another ring or washer to prevent lubricating oil leakage and foreign objects from invading. When the existing composite rubber sealing ring is used, its overall stability is poor, and it is easy to deform under the influence of external force, resulting in a large gap between the sealing ring and the workpiece. After the improvement of the utility model, when the connecting outer column squeezes the sloped buckle block downward, the sloped buckle block will shrink inward. When the connecting outer column moves down to the lower side of the sloped buckle block, the sloped buckle block will be reset and stuck to the connecting outer column due to the second connecting spring. After the improvement of the utility model, when the rubber sealing ring is subjected to external force, the reaction force of the first connecting spring is conducive to offsetting the external force, so that the deformation of the mounting ring caused by the external force is restored, thereby effectively avoiding the phenomenon that the rubber sealing ring is easily deformed under the influence of external force, resulting in a large gap between the sealing ring and the workpiece, affecting the sealing effect of the rubber sealing ring. Utility Model Content

[0003] The purpose of the utility model is to provide a composite rubber sealing ring to solve the problem that the existing composite rubber sealing ring mentioned in the above background technology has poor overall stability when in use and is easily deformed by external forces, resulting in a large gap between the sealing ring and the workpiece, which is improved by the utility model.

[0004] To achieve the above object, the utility model provides the following technical solution: a composite rubber sealing ring, comprising an outer rubber ring layer and a built-in mounting ring arranged at the middle position of the outer rubber ring layer;

[0005] A downward pressure groove is provided on the outer rubber ring layer, a sloped buckle block is provided in the downward pressure groove, a second connecting spring is provided at the inner side of the sloped buckle block, a connecting outer column is provided at the lower end of the sloped buckle block, a first connecting spring is provided at the inner position of the connecting outer column, a plug-in connecting inner column is provided at the outer side of the first connecting spring, the plug-in connecting inner column and the built-in mounting ring are an integrated structure, when the connecting outer column presses the sloped buckle block downward, the sloped buckle block will shrink inward, and when the connecting outer column moves down to the lower side of the sloped buckle block, the sloped buckle block will be reset and stuck to the connecting outer column due to the second connecting spring.

[0006] Preferably, the slope surface of the sloped buckle block is placed upwards, and when the sloped buckle block is subjected to downward extrusion force, a component force toward the outer rubber ring layer will be generated.

[0007] Preferably, the plug-in connecting inner column and the connecting outer column are connected by plugging, and the outer diameter of the plug-in connecting inner column is equal to the inner diameter of the connecting outer column.

[0008] Preferably, an external nylon ring is provided at the outer side of the outer rubber ring layer, and the external nylon ring is made of nylon material.

[0009] Preferably, the outer rubber ring layer and the upper and lower side surfaces of the built-in mounting ring are both provided with anti-slip stripes, and the anti-slip stripes are rough textures.

[0010] Preferably, an upper annular bag is provided on the built-in mounting ring, and the upper annular bag is made of rubber material.

[0011] Preferably, a built-in embedded rubber bag is arranged at the inner side of the built-in mounting ring, and the built-in embedded rubber bag and the upper annular bag are in a communicating state.

[0012] Preferably, a rubber ring groove is provided on the outer rubber ring layer, and the rubber ring groove is formed by the outer rubber ring layer structure.

[0013] Compared with the prior art, the utility model provides a composite rubber sealing ring having the following

[0014] Beneficial effects:

[0015] In the composite rubber sealing ring, a downward pressure groove is provided on the outer rubber ring layer, and a sloped buckle block is provided in the downward pressure groove, a second connecting spring is provided at the inner position of the sloped buckle block, a connecting outer column is provided at the lower end position of the sloped buckle block, a first connecting spring is provided at the inner position of the connecting outer column, and a plug-in connecting inner column is provided at the outer position of the first connecting spring. The plug-in connecting inner column and the built-in mounting ring are an integrated structure. When the connecting outer column squeezes the sloped buckle block downward, the sloped buckle block will shrink inward. When the connecting outer column moves down to the lower side of the sloped buckle block, the sloped buckle block will be reset and clamped to the connecting outer column due to the second connecting spring. After the improvement of the utility model, when the rubber sealing ring is subjected to external force, the reaction force of the first connecting spring is conducive to offsetting the external force, so that the deformation of the mounting ring caused by the external force is restored, thereby effectively avoiding the phenomenon that the rubber sealing ring is easily deformed due to the influence of external force, resulting in a large gap between the sealing ring and the workpiece, which affects the sealing effect of the rubber sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the composite rubber seal of the utility model.

[0017] Figure 2It is a schematic diagram of the top cross-sectional structure of the composite rubber seal of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the composite rubber sealing sloped buckle joint block of the utility model.

[0019] In the figure: 1. Outer rubber ring layer; 2. Rubber ring groove; 3. Lower pressure groove; 4. Sloped buckle block; 5. Built-in mounting ring; 6. Connecting outer column; 7. Plug-in connection with inner column; 8. First connecting spring; 9. Anti-slip stripes; 10. Upper annular bag; 11. Second connecting spring; 12. External nylon ring; 13. Built-in embedded rubber bag. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides Figure 1-3 As shown, a composite rubber sealing ring comprises an outer rubber ring layer 1 and an internal mounting ring 5 arranged at the middle position of the outer rubber ring layer 1; a downward pressing groove 3 is arranged on the outer rubber ring layer 1, a sloped buckle block 4 is arranged in the downward pressing groove 3, a second connecting spring 11 is arranged at the inner position of the sloped buckle block 4, a connecting outer column 6 is arranged at the lower end position of the sloped buckle block 4, a first connecting spring 8 is arranged at the inner position of the connecting outer column 6, and a plug-in connecting spring 11 is arranged at the outer position of the first connecting spring 8. The inner column 7 is connected and plugged into the inner column 7 and the built-in mounting ring 5 as an integrated structure. When the outer column 6 is connected and presses the sloped buckle block 4 downward, the sloped buckle block 4 will shrink inward. After the outer column 6 is moved down to the lower side of the sloped buckle block 4, the sloped buckle block 4 will be reset and clamped to the outer column 6 due to the second connecting spring 11. After the improvement of the utility model, when the rubber sealing ring is subjected to external force, the reaction force of the first connecting spring 8 is helpful to offset the external force, so that the deformation of the mounting ring caused by the external force can be restored.

[0022] like Figure 1 As shown, the slope of the sloped buckle block 4 is placed upwards, and when the sloped buckle block 4 is subjected to downward extrusion force, a component force toward the outer rubber ring layer 1 will be generated. The sloped surface setting of the sloped buckle block 4 can effectively enable the vertical force to generate a horizontal component force to change the direction of movement of the object.

[0023] like Figure 1As shown, the plug-in connecting inner column 7 and the connecting outer column 6 are connected by plug-in, the outer diameter of the plug-in connecting inner column 7 is equal to the inner diameter of the connecting outer column 6, and the plug-in connecting inner column 7 and the connecting outer column 6 work together to play a role in limiting and guiding movement.

[0024] like Figure 1 As shown, an external nylon ring 12 is arranged at the outer side of the outer rubber ring layer 1. The external nylon ring 12 is made of nylon material. The arrangement of the external nylon ring 12 makes the outer rubber ring layer 1 more wear-resistant during use, thereby effectively improving the service life of the outer rubber ring layer 1.

[0025] like Figure 2 As shown, anti-skid stripes 9 are provided at the upper and lower side surfaces of the outer rubber ring layer 1 and the built-in mounting ring 5. The anti-skid stripes 9 are rough textures. The provision of the anti-skid stripes 9 can make the outer rubber ring layer 1 more stably connected and placed during use.

[0026] like Figure 1 As shown, an upper annular bag 10 is arranged on the built-in mounting ring 5, and the upper annular bag 10 is made of rubber material. A built-in embedded rubber bag 13 is arranged at the inner side of the built-in mounting ring 5, and the built-in embedded rubber bag 13 and the upper annular bag 10 are connected, and the upper annular bag 10 and the built-in embedded rubber bag 13 are communicated. When the upper annular bag 10 is squeezed, gas is generated and enters the built-in embedded rubber bag 13, so that the built-in embedded rubber bag 13 expands and fits with the mounting piece, thereby making its installation more stable and reducing the generation of gaps.

[0027] like Figure 1 As shown, a rubber ring groove 2 is arranged on the outer rubber ring layer 1, and the rubber ring groove 2 is formed by the structure of the outer rubber ring layer 1. The arrangement of the rubber ring groove 2 can allow slight deformation to occur during extrusion, so that the sealing effect of the composite rubber sealing ring is better.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite rubber sealing ring, comprising The outer rubber ring layer (1) and a middle position of the outer rubber ring layer (1) are provided with a built-in mounting ring (5); Features: The outer rubber ring layer (1) is provided with a downward pressing groove (3), a sloped buckle block (4) is provided in the downward pressing groove (3), a second connecting spring (11) is provided at the inner side of the sloped buckle block (4), a connecting outer column (6) is provided at the lower end of the sloped buckle block (4), a first connecting spring (8) is provided at the inner side of the connecting outer column (6), a plug-in connecting inner column (7) is provided at the outer side of the first connecting spring (8), the plug-in connecting inner column (7) and the built-in mounting ring (5) are an integrated structure, when the connecting outer column (6) presses the sloped buckle block (4) downward, the sloped buckle block (4) will shrink inward, when the connecting outer column (6) moves down to the lower side of the sloped buckle block (4), the sloped buckle block (4) will be reset and clamped to the connecting outer column (6) due to the second connecting spring (11).

2. A composite rubber sealing ring according to claim 1, characterized in that: The sloped surface of the sloped buckle block (4) is placed upwards, and when the sloped buckle block (4) is subjected to downward extrusion force, a component force will be generated toward the outer rubber ring layer (1).

3. The composite rubber sealing ring according to claim 1, characterized in that: The plug-in connection inner column (7) and the connection outer column (6) are connected by plugging, and the outer diameter of the plug-in connection inner column (7) is equal to the inner diameter of the connection outer column (6).

4. The composite rubber sealing ring according to claim 1, characterized in that: An external nylon ring (12) is arranged at the outer side of the outer rubber ring layer (1), and the external nylon ring (12) is made of nylon material.

5. The composite rubber sealing ring according to claim 1, characterized in that: The outer rubber ring layer (1) and the built-in mounting ring (5) are both provided with anti-slip stripes (9) at the upper and lower side surfaces, and the anti-slip stripes (9) are rough patterns.

6. The composite rubber sealing ring according to claim 1, characterized in that: An upper annular bag (10) is arranged on the built-in mounting ring (5), and the upper annular bag (10) is made of rubber material.

7. The composite rubber sealing ring according to claim 1, characterized in that: A built-in embedded rubber bag (13) is arranged at the inner side of the built-in mounting ring (5), and the built-in embedded rubber bag (13) and the upper annular bag (10) are in a communicating state.

8. The composite rubber sealing ring according to claim 1, characterized in that: The outer rubber ring layer (1) is provided with a rubber ring groove (2), and the rubber ring groove (2) is formed by the structure of the outer rubber ring layer (1).

Images