Combined sealing ring
By designing a combined seal ring, using hydraulic oil and multiple sets of radial seal structures, the problem of insufficient elastic deformation of the O-ring is solved, and the sealing effect of pipeline connections is significantly improved.
Patent Information
- Application Number
- CN202323514346.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The existing O-ring has weak elastic deformation after being pressed, which cannot meet the needs of pipeline connections with high sealing requirements.
Design a combined sealing ring, including an elastic body, a sealed oil cavity, a first annular convex, a second annular convex, an inner ring tablet and an inner ring convex, and improve the sealing effect through hydraulic oil and multiple sets of radial sealing structures. .
In the pipeline connection, the sealing effect between the pipes is significantly improved through the dispersion of hydraulic oil and the multi-group radial sealing structure, and the sealing property is enhanced.
Smart Images
Figure CN222255036U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing, in particular to a combined sealing ring. Background Art
[0002] The sealing ring is a common sealing component and is widely used in various industries. For example, in pipeline connection, an O-ring is generally installed between two mutually plugged pipes. An O-ring is pre-installed in the outer pipe. When the inner pipe is plugged into the outer pipe, the O-ring is squeezed to produce elastic deformation and thus achieve pipeline sealing.
[0003] At present, for some pipe connections with relatively high sealing requirements, the inventors believe that if two mutually plugged pipes are only sealed by O-rings, the elastic deformation of some O-rings after being compressed is weak, which may affect the sealing between the pipes and fail to meet the use requirements of pipe connections with relatively high sealing requirements.
[0004] Therefore, how to solve the above technical problems and design a combined sealing ring with better sealing performance is a technical problem that the technicians in this field urgently need to solve.
[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content
[0006] In view of the above technical problems, an embodiment of the utility model provides a combined sealing ring to solve the problems raised in the above background technology.
[0007] The utility model provides the following technical solutions:
[0008] A combined sealing ring, comprising:
[0009] Elastic body,
[0010] The elastic body is annular, and an annular closed oil cavity is arranged on the body along the circumference of the elastic body; the closed oil cavity is filled with hydraulic oil;
[0011] The first annular convex ridge and the second annular convex ridge are respectively fixedly connected to two sides of the outer side wall of the elastic body;
[0012] The inner ring pressing piece is located inside the elastic body and is distributed in a ring shape along the circumference of the elastic body. The two sides of the inner ring pressing piece are respectively a fixed side and a movable side. The fixed side is fixedly connected to the inner side of the elastic body, and the movable side is spaced away from the inner side of the elastic body. A plurality of annular fine ridges are spaced apart on the outer side of the inner ring pressing piece.
[0013] The inner annular convex ridge is fixedly connected to the inner side wall of the elastic body, and the inner annular convex ridge is located on the inner side of the movable side of the inner ring pressing sheet;
[0014] There are two inner ring pressing sheets, which are spaced and connected to the inner side of the elastic body; an inner ring convex ridge fixed on the inner side wall of the elastic body is arranged on the inner side of the movable side of each inner ring pressing sheet.
[0015] Preferably, the diameters of the two sides of the inner ring pressing sheet are different, and the diameter of the movable side is smaller than the diameter of the fixed side.
[0016] Preferably, the cross-sectional shapes of the first annular convex ridge, the second annular convex ridge and the inner annular convex ridge are all semicircular.
[0017] Preferably, the elastic body, the first annular convex ridges, the second annular convex ridges, the inner ring pressing sheet and the inner annular convex ridges are all made of rubber and are integrally vulcanized.
[0018] Preferably, the first annular convex ridge, the second annular convex ridge and the inner annular convex ridge are all solid structures.
[0019] A combined sealing ring provided in an embodiment of the utility model has the following beneficial effects: the utility model designs a combined sealing ring with better sealing performance, adds multiple sets of radial sealing structures, and can improve the sealing effect between pipelines when used in the pipeline connection process, and has high applicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the main viewing direction of the utility model;
[0021] Figure 2 For this utility model Figure 1 Cross-section view in the AA direction;
[0022] Figure 3 For this utility model Figure 2 A partial enlarged view of B in the middle;
[0023] Figure 4 This is a rendering of the utility model installed in an outer tube. DETAILED DESCRIPTION
[0024] 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 of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-Figure 4 ;
[0026] In view of the problems mentioned in the above background technology, the embodiment of the utility model provides a combined sealing ring to solve the above technical problems, and its technical solution is as follows:
[0027] A combined sealing ring, characterized by comprising:
[0028] The elastic body 110,
[0029] The elastic body 110 is annular, and an annular sealed oil chamber 110a is arranged on the body along the circumference of the elastic body 110; the sealed oil chamber 110a is filled with hydraulic oil;
[0030] The first annular convex rib 121 and the second annular convex rib 122 are respectively fixedly connected to the two sides of the outer side wall of the elastic body 110;
[0031] The inner ring pressing piece 130 is located inside the elastic body 110 and is distributed in a ring shape along the circumference of the elastic body 110. The inner ring pressing piece 130 has a fixed side and a movable side on both sides. The fixed side is fixedly connected to the inner side of the elastic body 110, and the movable side is spaced away from the inner side of the elastic body 110.
[0032] A plurality of annular fine ridges 131 are arranged at intervals on the outer side of the inner ring pressing piece 130; the orientation word "outer side" of the inner ring pressing piece 130 is relative to the inner wall of the elastic body 110, the side of the inner ring pressing piece 130 close to the inner wall of the elastic body 110 is the inner side of the inner ring pressing piece 130, and the side of the inner ring pressing piece 130 away from the inner wall of the elastic body 110 is the outer side of the inner ring pressing piece 130;
[0033] The inner annular convex ridge 140 is fixedly connected to the inner side wall of the elastic body 110, and the inner annular convex ridge 140 is located on the inner side of the movable side of the inner ring pressing plate 130;
[0034] There are two inner ring pressing sheets 130 , which are spaced apart and connected to the inner side of the elastic body 110 ; an inner ring convex ridge 140 fixed to the inner side wall of the elastic body 110 is provided on the inner side of the movable side of each inner ring pressing sheet 130 .
[0035] The working principle of a combined sealing ring provided by the embodiment of the utility model is as follows:
[0036] 1. Figure 4 As shown, an annular installation groove 210 is pre-arranged on the inner wall of the outer tube 200, the cross section of the annular installation groove 210 is rectangular, and the combined sealing ring is assembled in the installation groove 210 of the outer tube 200;
[0037] 2. Place the inner tube according to Figure 4The inner tube 110 is inserted into the lumen of the outer tube 200 in the direction of the middle arrow. After the inner tube 110 is inserted into the lumen of the outer tube 200, the first annular convex ridges 121 and the second annular convex ridges 122 on the outer side of the elastic body 110 are elastically deformed after being squeezed, thereby playing a radial sealing role in the pipeline connection;
[0038] 3. During the plugging process of the inner tube, the inner ring pressing piece 130 will be passed through, and the inner ring pressing piece 130 will be stretched open by the tube wall of the inner tube and adhere to and squeeze the inner ring convex ridge 140 inside thereof. After being squeezed, the inner ring convex ridge 140 will squeeze the inner wall of the elastic body 110, and the squeezing of the inner ring convex ridge 140 will cause the hydraulic oil in the closed oil chamber 110a to disperse and flow. The cavity wall of the closed oil chamber 110a will be squeezed by the hydraulic oil and firmly adhere to the contact position between the inner wall of the outer tube and the outer wall of the inner tube, further improving the sealing effect;
[0039] 4. Because a plurality of annular fine ridges 131 are arranged at intervals on the outer side of the inner ring pressing sheet 130, after the inner tube passes through the inner ring pressing sheet 130, the plurality of annular fine ridges 131 will increase the firmness of the connection between the inner ring pressing sheet 130 and the inner tube, and hold the inner ring pressing sheet 130 tightly on the inner tube; at the same time, the annular fine ridges 131 also assist in playing the role of radial sealing, avoiding leakage at the connection position between the inner ring pressing sheet 130 and the inner tube.
[0040] In this embodiment, the diameters on both sides of the inner ring pressing sheet 130 are different, and the diameter of the movable side is smaller than the diameter of the fixed side. The inner ring pressing sheet 130 has different diameters on both sides. When the inner tube is inserted into the inner ring pressing sheet 130 of the annular structure, the small-diameter inner movable side can be firmly held on the pipe, thereby improving the sealing effect.
[0041] In this embodiment, the cross-sectional shapes of the first annular rib 121, the second annular rib 122 and the inner annular rib 140 are all semicircular; the semicircular rib increases the volume of the connection between the bottom of the rib and the elastic body 110, and increases the mechanical strength of the connection between the two; if the rib is designed to be O-shaped, the volume of the connection between the bottom of the rib and the elastic body 110 will be reduced.
[0042] In this embodiment, the elastic body 110, the first annular rib 121, the second annular rib 122, the inner ring pressing piece 130 and the inner annular rib 140 are all made of rubber and are integrally vulcanized to improve the structural strength of the combined sealing ring.
[0043] In this embodiment, the inner side of the elastic body 110 is chamfered at the starting position 100 a of the inner tube insertion, so as to facilitate the inner tube to be inserted into the outer tube 200 .
[0044] A combined sealing ring provided in an embodiment of the utility model has the following beneficial effects: the utility model designs a combined sealing ring with better sealing performance, adds multiple sets of radial sealing structures, and can improve the sealing effect between pipelines when used in the pipeline connection process, and has high applicability.
[0045] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, and may be located in one place or distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0046] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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 the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0047] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of the utility model, and all these changes or substitutions should fall within the protection scope of the claims attached to the utility model.
Claims
1. A combined sealing ring, characterized in that: include: Elastic body, The elastic body is annular, and an annular closed oil cavity is arranged on the body along the circumference of the elastic body; the closed oil cavity is filled with hydraulic oil; The first annular convex ridge and the second annular convex ridge are respectively fixedly connected to two sides of the outer side wall of the elastic body; The inner ring pressing piece is located inside the elastic body and is distributed in a ring shape along the circumference of the elastic body. The inner ring pressing piece has a fixed side and a movable side on both sides. The fixed side is fixedly connected to the inner side of the elastic body, and the movable side is spaced away from the inner side of the elastic body. The inner annular convex ridge is fixedly connected to the inner side wall of the elastic body, and the inner annular convex ridge is located on the inner side of the movable side of the inner ring pressing sheet; a plurality of annular fine ridges are arranged at intervals on the outer side of the inner ring pressing sheet; There are two inner ring pressing sheets, which are spaced and connected to the inner side of the elastic body; an inner ring convex ridge fixed on the inner side wall of the elastic body is arranged on the inner side of the movable side of each inner ring pressing sheet.
2. The combined sealing ring according to claim 1, characterized in that: The diameters of the two sides of the inner ring pressing sheet are different, and the diameter of the movable side is smaller than the diameter of the fixed side.
3. The combined sealing ring according to claim 1, characterized in that: The cross-sectional shapes of the first annular convex ridge, the second annular convex ridge and the inner annular convex ridge are all semicircular.
4. The combined sealing ring according to claim 1, characterized in that: The elastic body, the first annular convex ridges, the second annular convex ridges, the inner ring pressing sheet and the inner annular convex ridges are all made of rubber and are integrally vulcanized.
5. The combined sealing ring according to claim 1, characterized in that: The first annular convex ridge, the second annular convex ridge and the inner annular convex ridge are all solid structures.