Anti-falling rubber sealing ring

Abstract

The utility model relates to the technical field of sealing element discloses a kind of anti-drop rubber sealing ring, including rubber ring body, rubber ring body further includes lower sealing body, and multiple upper sealing bodies are fixedly connected on lower sealing body, and first installation cavity is opened in lower sealing body, and tensile spring is connected with being inserted in first installation cavity, and second installation cavity is opened in lower sealing body in the position above first installation cavity, and support is movably connected in second installation cavity. Annular tensile spring in first installation cavity, can apply restraint force towards center point to lower sealing body, greatly promote the contact pressure of lower sealing body and shaft workpiece, effectively avoid sealing ring deviation, fall off, solve the problem that traditional rubber ring is easy to drop, simultaneously, the support in second installation cavity, rely on annular center plate and arc support piece, continuously provide support expansion force to upper sealing body and lower sealing body, slow down the elastic loss caused by rubber aging.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, and in particular to an anti-detachment rubber sealing ring. Background Technology

[0002] Rubber sealing rings are ring-shaped sealing elements made of rubber as the core material. They are widely used in machinery, pipelines, equipment and other scenarios. Their core function is to fill the gaps in the sealing surface, block the leakage of gas, liquid or dust, and at the same time prevent the intrusion of external impurities. Rubber sealing rings are mostly O-type, Y-type, and U-type structures. They can maintain sealing performance under pressure and temperature changes by elastically conforming to the sealing surface. Currently, when rubber rings are fitted onto shaft-type workpieces, oil stains and wear on some shaft surfaces can cause the rubber ring to not fit tightly against the shaft surface, easily losing its limiting ability. Moreover, as the rubber ring ages, its elasticity decreases, making it difficult to stably conform to the shaft. In addition, after long-term use, the rubber gradually loses its elasticity and cannot tightly conform to the workpiece surface. Furthermore, long-term friction on the workpiece sealing surface will cause wear, making the surface rough, and the rubber ring will find it difficult to fully conform to the damaged surface, thus preventing the service life of the rubber ring from being further extended. Utility Model Content

[0003] The purpose of this utility model is to provide an anti-detachment rubber sealing ring. The annular tension spring can apply a binding force towards the center point to the lower sealing body, increasing its contact pressure with the workpiece to prevent detachment. The support member can support the upper and lower sealing bodies, extending the life of the sealing ring, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An anti-detachment rubber sealing ring includes a rubber ring body, the rubber ring body further includes a lower sealing body, a plurality of upper sealing bodies are fixedly connected to the lower sealing body, a first mounting cavity is formed in the lower sealing body, a tension spring is inserted and connected in the first mounting cavity, a second mounting cavity is formed in the lower sealing body located above the first mounting cavity, and a support member is movably connected in the second mounting cavity.

[0005] As a further preferred embodiment of this utility model, a separation groove is provided in the lower sealing body located below the first mounting cavity, so that after the lower sealing body is formed, the bottom of the lower sealing body can be separated through the separation groove, so that the tension spring can be inserted and connected in the first mounting cavity.

[0006] As a further preferred embodiment of this utility model, the support member includes a central plate with an annular structure. Support plates are fixedly connected to the outer and inner sides of the central plate, respectively. The longitudinal cross-section of the support plates is arc-shaped and abuts against the top and bottom sides of the second mounting cavity. The support plates on both sides of the central plate can provide support for the upper and lower sealing bodies through the second mounting cavity, thereby enhancing the support expansion capacity of the upper and lower sealing bodies during long-term use and making them fit the workpiece surface better.

[0007] As a further preferred embodiment of this utility model, a protective sleeve is inserted and connected to the outside of the support member to enable the prefabrication of the support member and to place it in the second mounting cavity during the thermoplastic molding of the lower sealing body and the upper sealing body.

[0008] As a further preferred embodiment of this utility model, the tension spring has a ring structure, which can provide a binding force towards the center point for the lower sealing body, increase the contact pressure between the lower sealing body and the workpiece, and play a role in preventing detachment.

[0009] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the annular tension spring in the first mounting cavity can apply a binding force towards the center point to the lower sealing body, which greatly increases the contact pressure between the lower sealing body and the shaft workpiece, effectively preventing the sealing ring from shifting or falling off, and solving the problem of easy detachment of traditional rubber rings. At the same time, the support member in the second mounting cavity, relying on the annular center plate and the arc-shaped support plate, continuously provides support expansion force to the upper and lower sealing bodies, slowing down the loss of elasticity caused by rubber aging. Even if the sealing surface of the workpiece becomes rough after long-term use, it can still maintain a good fit, effectively extending the overall service life of the sealing ring. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a cross-sectional view of the main structure of this utility model; Figure 3 This is a schematic diagram of the support structure of this utility model; Figure 4 This is a schematic diagram of the tension spring structure of this utility model.

[0011] In the diagram: 1. Rubber ring body; 2. Lower sealing body; 3. Upper sealing body; 4. First mounting cavity; 5. Separation groove; 6. Tension spring; 7. Second mounting cavity; 8. Support component; 9. Center plate; 10. Support piece; 11. Protective sleeve. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0013] like Figures 1-4 As shown, the present invention provides an anti-detachment rubber sealing ring, including a rubber ring body 1, the rubber ring body 1 also includes a lower sealing body 2, a plurality of upper sealing bodies 3 are fixedly connected to the lower sealing body 2, a first mounting cavity 4 is opened in the lower sealing body 2, a tension spring 6 is inserted and connected in the first mounting cavity 4, a second mounting cavity 7 is opened in the lower sealing body 2 located above the first mounting cavity 4, and a support member 8 is movably connected in the second mounting cavity 7.

[0014] like Figure 2 , Figure 4 As shown, a separation groove 5 is provided in the lower sealing body 2 located below the first mounting cavity 4. After the lower sealing body 2 is formed, the bottom of the lower sealing body 2 can be separated through the separation groove 5, so that the tension spring 6 can be inserted and connected in the first mounting cavity 4. The tension spring 6 has a ring structure, which can provide a binding force towards the center point for the lower sealing body 2, increase the contact pressure between the lower sealing body 2 and the workpiece, and play a role in preventing detachment.

[0015] like Figures 2-3 As shown, the support member 8 includes a central plate 9, which has a ring structure. Support plates 10 are fixedly connected to the outer and inner sides of the central plate 9, respectively. The longitudinal section of the support plates 10 is arc-shaped and abuts against the top and bottom sides of the second mounting cavity 7, respectively. The support plates 10 on both sides of the central plate 9 can provide support for the upper sealing body 3 and the lower sealing body 2 through the second mounting cavity 7. In the long-term use, this enhances the support expansion capacity of the upper sealing body 3 and the lower sealing body 2, making them fit the workpiece surface better. A protective sleeve 11 is inserted and connected to the outer side of the support member 8 to realize the prefabrication of the support member 8 and place it in the second mounting cavity 7 when the lower sealing body 2 and the upper sealing body 3 are thermoplastic formed.

[0016] It should be noted that this utility model is an anti-detachment rubber sealing ring. First, the bottom of the lower sealing body 2 is separated by the separation groove 5. The annular tension spring 6 is inserted into the first mounting cavity 4 inside the lower sealing body 2. Then, the separated bottom of the lower sealing body 2 is reset to complete the assembly of the tension spring 6. At this time, the tension spring 6 will naturally apply a binding force towards the center point to the lower sealing body 2. When it is subsequently fitted onto the outside of the shaft workpiece, this binding force can greatly increase the contact pressure between the lower sealing body 2 and the surface of the shaft workpiece. Even if there is oil or slight wear on the shaft surface, the lower sealing body 2 can still fit tightly against the shaft, preventing the sealing ring from shifting or falling off when the shaft workpiece rotates or is subjected to force. In addition, a support member 8 with a protective sleeve 11 is pre-assembled in the second mounting cavity 7. The outer and inner sides of the annular center plate 9 of the support member 8 are respectively connected to support plates 10 with an arc-shaped longitudinal section. These support plates 10 will abut against the top and bottom of the second mounting cavity 7 respectively. When the lower sealing body 2 and the upper sealing body 3 are pressed against the surface of the workpiece by the external workpiece pressure during the use of the rubber ring body 1, the support plates 10 rely on the elasticity of their own arc-shaped structure to continuously provide support expansion force to the upper sealing body 3 and the lower sealing body 2, reduce the problem of aging and loss of elasticity of the rubber material due to long-term use, and enable the upper sealing body 3 and the lower sealing body 2 to maintain a good fit with the workpiece, thus extending the overall service life of the sealing ring.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A type of anti-detachment rubber sealing ring, characterized in that: The device includes a rubber ring body (1), which also includes a lower sealing body (2). Multiple upper sealing bodies (3) are fixedly connected to the lower sealing body (2). A first mounting cavity (4) is provided inside the lower sealing body (2). A tension spring (6) is inserted and connected inside the first mounting cavity (4). A second mounting cavity (7) is provided inside the lower sealing body (2) located above the first mounting cavity (4). A support member (8) is movably connected inside the second mounting cavity (7).

2. The anti-detachment rubber sealing ring according to claim 1, characterized in that: A separation groove (5) is provided in the lower sealing body (2) located below the first mounting cavity (4).

3. The anti-detachment rubber sealing ring according to claim 1, characterized in that: The support member (8) includes a center plate (9) in a ring structure. Support plates (10) are fixedly connected to the outer and inner sides of the center plate (9). The longitudinal section of the support plate (10) is arc-shaped and abuts against the top and bottom sides of the second mounting cavity (7).

4. The anti-detachment rubber sealing ring according to claim 1, characterized in that: The support member (8) is connected to a protective sleeve (11) on its outer side.

5. The anti-detachment rubber sealing ring according to claim 1, characterized in that: The tension spring (6) has a ring structure.

Images