An easy-to-install rubber sealing ring
By setting grooves, paddles, vent holes, and Teflon layers on the rubber sealing ring, combined with a rubber pull ring, the problem of difficult disassembly of traditional sealing rings is solved, enabling easy disassembly and reuse of the sealing ring, reducing the risk of damage and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINING JIACHENG RUBBER CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional rubber seals are difficult to disassemble due to aging, adhesion, or interference fit, leading to tearing, damage, and increased maintenance costs.
The design incorporates a ring with grooves and paddles, a Teflon coating on the outer surface, and vent holes and positioning grooves. Combined with a rubber pull ring, it provides a clear point of force application and a low-friction surface, reducing the difficulty of disassembly.
It enables easy disassembly of the sealing ring, reduces the risk of damage, and decreases the consumption of spare parts and maintenance costs.
Smart Images

Figure CN224579749U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rubber sealing ring, and more specifically, to a rubber sealing ring that is easy to install and disassemble. Background Technology
[0002] A rubber seal is a ring-shaped sealing element made of rubber material, primarily used to prevent leakage of fluids (liquids or gases) or solid particles between two adjacent mechanical parts, or to prevent external contaminants from entering the system. It achieves an effective seal by applying continuous contact pressure to the contact surfaces through elastic deformation during installation; the most common form is the O-ring (a closed ring with a circular cross-section).
[0003] Traditional rubber seals (such as O-rings) have good sealing performance, but they are often difficult to remove during disassembly due to aging, adhesion, or interference fit. The lack of handles also makes disassembly difficult, leading to tearing and damage of the O-rings, which must be replaced, increasing costs.
[0004] Therefore, a new solution is needed to address this problem. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rubber sealing ring that is easy to disassemble and assemble, so as to solve the technical problem that traditional rubber sealing rings are inconvenient to disassemble.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a rubber sealing ring that is easy to disassemble and assemble, comprising a ring body, a groove is provided on both the left and right sides of the upper end of the ring body, a paddle is fixedly installed in each of the two grooves, a placement groove is provided on both the front and rear sides of the inner cavity of the ring body, two fixing blocks are fixedly installed in each of the two placement grooves, a rubber pull ring is fixedly installed on the opposite side of the two fixing blocks, and the outer surface of the ring body is coated with a Teflon layer.
[0007] The present invention is further configured such that an exhaust hole is provided on the outer surface of the ring body.
[0008] The present invention is further configured such that a positioning groove is provided on both the front and rear sides of the upper end of the ring body.
[0009] In summary, this utility model has the following beneficial effects:
[0010] By incorporating a pry bar and rubber pull ring, a clear and reliable point of force is provided for disassembly. Operators no longer need to blindly pry the smooth surface of the seal with sharp tools, completely solving the problem of difficult disassembly caused by the lack of grips in traditional O-rings. This simplifies the disassembly process. The design of the pry bar and rubber pull ring ensures that external force is applied evenly and concentratedly to specific reinforced parts of the seal, rather than to the vulnerable sealing lip. At the same time, the Teflon layer significantly reduces friction and pulling force during disassembly. These two factors work together to greatly reduce the risk of the seal being torn, cut, or broken during disassembly, effectively protecting the seal. Since the seal is not easily damaged during disassembly, it can be reused (provided the material has not aged), eliminating the need for mandatory replacement at every maintenance, thereby reducing spare parts consumption and maintenance costs. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of the rubber sealing ring of this utility model;
[0012] Figure 2 This is a top view of the rubber sealing ring of this utility model.
[0013] In the diagram: 1. Ring body; 2. Groove; 3. Paddle; 4. Placement slot; 5. Fixing block; 6. Rubber pull ring; 7. Teflon layer; 8. Vent hole; 9. Positioning slot. Detailed Implementation
[0014] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.
[0015] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0017] The present invention will now be described in detail with reference to the accompanying drawings.
[0018] A rubber sealing ring that is easy to install and remove, such as Figures 1 to 2 As shown, the device includes a ring body 1. A groove 2 is formed on both the left and right sides of the upper end of the ring body 1. A lever 3 is fixedly installed in each of the two grooves 2. A placement slot 4 is formed on both the front and rear sides of the inner cavity of the ring body 1. Two fixing blocks 5 are fixedly installed in each of the two placement slots 4. A rubber pull ring 6 is fixedly installed on the opposite face of each of the two fixing blocks 5. The outer surface of the ring body 1 is coated with a Teflon layer 7. Teflon layer 7 is one of the materials with the lowest known coefficient of friction among solid materials, with both static and dynamic coefficients of friction being very small, typically between 0.05 and 0.15. With a friction coefficient far lower than most metals, plastics, and rubbers, during installation: when the Teflon-coated sealing ring is pressed into the metal sealing groove, the friction between the Teflon-coated surface and the metal groove wall is minimal. This allows the sealing ring to slide into the intended position more smoothly, greatly reducing the pushing or pressing force required by the operator, making the process more effortless. During disassembly: similarly, when it is necessary to remove the sealing ring from the groove, the low coefficient of friction means that only a small pulling or prying force is needed to start it sliding and remove it smoothly, avoiding situations where excessive resistance requires forceful operation.
[0019] like Figure 1 As shown, the outer surface of the ring body 1 is provided with an exhaust hole 8. When the rubber sealing ring is pressed into the sealing groove, the air that originally existed between the sealing ring and the bottom of the sealing groove will be rapidly compressed. If this space is completely sealed, the air cannot be discharged and a high-pressure airbag, i.e., an "air lock", will be formed. The air lock will generate huge reverse pressure, which will seriously hinder the continued pressing of the sealing ring. The operator needs to apply a force far exceeding the normal value to complete the installation. The exhaust hole 8 provides a pressure relief channel for the compressed air. During the installation process, the air can be squeezed out along the exhaust hole 8, avoiding the formation of a high-pressure airbag.
[0020] like Figure 1As shown, a positioning groove 9 is provided on both the front and rear sides of the upper end of the ring body 1. When the sealing ring body 1 is placed into the sealing groove, especially in deep grooves, blind holes or situations where the operating space is limited, it is difficult for the operator to intuitively confirm whether the sealing ring body 1 has been accurately placed in the center of the groove. If the sealing ring body 1 is offset or rotated, the subsequent pressing process will be very difficult, and may even cause the sealing ring body 1 to be "stuck" or its edge to be cut by a sharp metal edge. The positioning groove 9 can cooperate with the corresponding positioning pin, boss or guide structure on the equipment. In the initial stage of installation, aligning the positioning groove 9 of the sealing ring with the positioning structure on the equipment can ensure that the sealing ring is accurately inserted into the predetermined position.
[0021] Working principle: During installation, the sealing ring body 1 is first placed in the installation position. The positioning groove 9 can cooperate with the positioning structure on the equipment to achieve initial positioning. Then, the sealing ring body 1 is pressed into the sealing groove. During the pressing process, the ring body 1 undergoes elastic compression deformation. The Teflon layer 7 on its outer surface effectively reduces the friction with the groove wall, making the installation process smoother. At the same time, the vent hole 8 allows the air between the sealing ring body 1 and the bottom of the groove to be discharged smoothly, preventing air lock and ensuring that the sealing ring body 1 is completely and flatly positioned to achieve a reliable seal.
[0022] During disassembly, two methods can be selected based on operating space and convenience: External prying method: If there is operating space on the exposed part of the sealing ring body 1, use your fingers or a flat tool to insert into the groove 2, press against the prying piece 3, apply outward force, and gradually pry the sealing ring body 1 out of the sealing groove; Internal pulling method: If the sealing ring body 1 is installed on the shaft and there is an internal channel, use a hook-shaped tool to reach into the equipment, hook the rubber pull ring 6, apply inward pulling force, and pull the sealing ring body 1 out as a whole.
[0023] Regardless of the disassembly method used, the Teflon layer 7 continuously provides a low-friction surface, making the disassembly process effortless and without damaging the sealing ring body 1.
[0024] In summary, by incorporating the pry bar 3 and rubber pull ring 6, a clear and reliable force application point is provided for disassembly. Operators no longer need to blindly pry the smooth surface of the sealing ring with sharp tools, completely solving the problem of difficult disassembly caused by the lack of grips in traditional O-rings. This simplifies the disassembly process. The design of the pry bar 3 and rubber pull ring 6 ensures that external force is applied evenly and concentratedly to specific reinforced parts of the sealing ring, rather than to the vulnerable sealing lip. At the same time, the Teflon layer 7 significantly reduces friction and the pulling force during disassembly. These two factors work together to greatly reduce the risk of the sealing ring being torn, cut, or broken during disassembly, effectively protecting the sealing ring. Since the sealing ring is not easily damaged during disassembly, it can be reused (provided the material has not aged), eliminating the need for mandatory replacement at every maintenance, thereby reducing spare parts consumption and maintenance costs.
[0025] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A rubber sealing ring which is easy to disassemble, comprising a ring body (1), characterized in that: The upper left and right sides of the ring body (1) are provided with a groove (2), and a paddle (3) is fixedly installed in each of the two grooves (2). The front and rear sides of the inner cavity of the ring body (1) are provided with a placement groove (4), and two fixing blocks (5) are fixedly installed in each of the two placement grooves (4). A rubber pull ring (6) is fixedly installed on the opposite side of each of the two fixing blocks (5). The outer surface of the ring body (1) is coated with a Teflon layer (7).
2. The rubber sealing ring of easy disassembly according to claim 1, characterized in that: The outer surface of the ring (1) is provided with an exhaust hole (8).
3. The easily detachable rubber sealing ring according to claim 1, characterized in that: A positioning groove (9) is provided on both the front and rear sides of the upper end of the ring body (1).