Sealing ring for clamping and pressing pipe fitting

Abstract

The utility model discloses a clamping and pressing pipe fitting sealing ring which comprises a sealing ring body, a plurality of grooves are formed in the inner side of the sealing ring body, and at least one protruding point is arranged on the inner side of the sealing ring body and located on the two sides of each groove. The grooves are formed in the inner side of the sealing ring body and located in the inner circumference of the sealing ring body, the sealing ring body is installed on a pipeline, under the condition that the sealing ring body is not clamped and pressed, liquid in the pipeline can be leaked to the outside from the grooves, and the anti-leakage clamping function is achieved; and the convex points are arranged on the inner side of the sealing ring main body and located on the two sides of the groove and used for preventing the situation that when the sealing ring main body is installed on the pipeline, the groove is opened inwards to be attached to the outer wall of the pipeline, it can be guaranteed that a gap exists between the groove and the outer wall of the pipeline under the condition that the sealing ring main body is not clamped and pressed through the convex points, and the clamping leakage prevention function is better.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe fitting sealing, and in particular to a press-fit pipe fitting sealing ring. Background Technology

[0002] In practical use, crimp fittings need to be connected to pipes and installed using specialized crimping tools to ensure a secure connection. For example, patent 201721913678.4 discloses a crimp fitting including a connecting pipe, one side of which is connected to a first insert pipe, the side of which away from the connecting pipe is connected to a first sealing pipe, the side of which away from the first sealing pipe is connected to a first crimping pipe, the side of which away from the first insert pipe is connected to a second insert pipe, the side of which away from the connecting pipe is connected to a second sealing pipe, the side of which away from the second sealing pipe is connected to a second crimping pipe, a first sealing ring is fixedly connected to the inner wall of the first sealing pipe, and a second sealing ring is fixedly connected to the inner wall of the second sealing pipe.

[0003] Currently, the sealing ring is an O-ring made of rubber. It is typically fitted onto the pipe. Even without being clamped, the sealing ring provides a certain degree of sealing. However, during actual installation, the clamp may be forgotten or omitted, making it impossible to detect the leak at the time. This leads to leakage risks and problems during later use, inevitably causing losses. Utility Model Content

[0004] In view of the aforementioned problems with existing sealing rings installed on pipelines, this paper aims to provide a press-fit pipe sealing ring.

[0005] The specific technical solution is as follows:

[0006] A pressure-fitting pipe fitting sealing ring includes: a sealing ring body, wherein the inner side of the sealing ring body is provided with a plurality of grooves, and at least one protrusion is provided on both sides of each groove on the inner side of the sealing ring body.

[0007] In the aforementioned press-fit pipe sealing ring, the distance between the two protrusions on both sides of the groove and the groove is equal, and the distance is 1 to 3 mm.

[0008] In the aforementioned press-fit pipe fitting sealing ring, a plurality of the grooves are arranged at equal intervals along the inner circumference of the sealing ring body.

[0009] In the aforementioned press-fit pipe fitting sealing ring, the radial cross-section of the sealing ring body is circular, and the circumferential cross-section of the sealing ring body is annular.

[0010] In the aforementioned press-fit pipe fitting sealing ring, the length of the groove is greater than 1 / 3 of the cross-sectional circumference of the sealing ring body.

[0011] In the aforementioned press-fit pipe sealing ring, the total volume of the raised protrusions of the plurality of protrusions is 1.2 to 2.5 times the total volume of the recesses of the plurality of grooves.

[0012] In the aforementioned press-fit pipe fitting sealing ring, the groove is C-shaped, L-shaped, or J-shaped; the groove is arranged along the surface direction of the circular cross-section of the sealing ring body; when the groove is J-shaped, the two ends of the groove are asymmetrical; at least one end of the groove is bent toward one of the protrusions; the groove includes a first groove, a second groove, and a third groove connected in sequence along its length direction, the first groove and the third groove are asymmetrical in the second groove, the third groove is bent toward one of the protrusions, and the length of the third groove is not less than the length of the first groove.

[0013] The aforementioned press-fit pipe fitting sealing ring has two grooves on the inner side of the sealing ring body, and the two grooves are symmetrically arranged along the central axis of the sealing ring body.

[0014] In the aforementioned press-fit pipe sealing ring, the two protrusions located on both sides of one of the grooves and the two protrusions located on both sides of the other groove are symmetrically arranged along the central axis of the sealing ring body.

[0015] The aforementioned press-fit pipe fitting sealing ring has three grooves on the inner side of the sealing ring body. The three grooves are equally spaced along the inner circumference of the sealing ring body. Two protrusions located on both sides of the same groove form a protrusion group. The three protrusion groups are equally spaced along the inner circumference of the sealing ring body.

[0016] The positive effects of the above technical solution compared with the existing technology are:

[0017] This invention provides several grooves on the inner side of the sealing ring body, and these grooves are located on the inner circumference of the sealing ring body. When the sealing ring body is installed on the pipe, if the sealing ring body is not pressed, the liquid inside the pipe will leak out from the grooves, thus providing a leak-proof function.

[0018] This invention features raised dots on both sides of the groove on the inner side of the sealing ring body. These dots prevent the sealing ring body from being stretched open and pressed against the outer wall of the pipe when it is installed on the pipe. The raised dots ensure that there is a gap between the groove and the outer wall of the pipe when the sealing ring body is not pressed, thus improving the anti-leakage and anti-jamming function. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the overall structure of a press-fit pipe fitting sealing ring according to the present invention;

[0020] Figure 2 This is a front view of the overall structure of a press-fit pipe fitting sealing ring according to this utility model;

[0021] Figure 3 This is a cross-sectional view of the overall structure of a press-fit pipe fitting sealing ring according to this utility model;

[0022] In the attached diagram: 1. Sealing ring body; 2. Groove; 3. Protrusion; 21. First groove; 22. Second groove; 23. Third groove. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0024] like Figures 1 to 3 As shown, a preferred embodiment of a press-fit pipe fitting sealing ring is illustrated, comprising: a sealing ring body 1, a plurality of grooves 2 provided on the inner side of the sealing ring body 1, and at least one protrusion 3 provided on both sides of each groove 2 on the inner side of the sealing ring body 1.

[0025] Preferably, the outer surface of the protrusion 3 is arc-shaped.

[0026] Furthermore, in a preferred embodiment, the two protrusions 3 on both sides of the groove 2 are equidistant from the groove 2, and the distance is 1 to 3 mm.

[0027] Furthermore, as a preferred embodiment, several grooves 2 are arranged at equal intervals along the inner circumference of the sealing ring body 1.

[0028] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0029] Based on the above, this utility model also has the following embodiments:

[0030] For further embodiments of this utility model, please refer to... Figures 1 to 3 As shown, the radial cross-section of the sealing ring body 1 is circular, and the circumferential cross-section of the sealing ring body 1 is annular.

[0031] In a further embodiment of this utility model, the length of the groove 2 is greater than 1 / 3 of the cross-sectional perimeter of the sealing ring body 1.

[0032] Preferably, the length of the groove 2 is less than 1 / 2 of the cross-sectional perimeter of the sealing ring body 1.

[0033] Experiment on the ratio of the groove length to the radial perimeter of the sealing ring body.

[0034]

[0035] In a further embodiment of the present invention, the total volume of the protrusions of the plurality of protrusions 3 is 1.2 to 2.5 times the total volume of the recesses of the plurality of grooves 2.

[0036] Experiment on the ratio of the total volume of the protrusions of a number of protrusions to the total volume of the depressions of a number of grooves

[0037]

[0038] 1. Pre-pressure leakage test: Sections 4.2.2.6 and 4.2.3.6 of BS EN 1254-7:2021 require that the product must produce at least one bubble or one water droplet per second during pre-pressure water and air pressure tests.

[0039] 2. Internal pressure test: According to sections 4.2.2.1 and 4.2.3.1 of BS EN 1254-7:2021, after the product is clamped, it is sealed and there is no leakage during internal water pressure and air pressure tests.

[0040] In a further embodiment of this utility model, the groove 2 is C-shaped, L-shaped, or J-shaped.

[0041] In a further embodiment of this utility model, the groove 2 is provided along the surface direction of the circular cross-section of the sealing ring body 1.

[0042] Preferably, the length direction of the groove 2 is set along the surface direction of the circular cross-section of the sealing ring body 1.

[0043] In a further embodiment of this utility model, when the groove 2 is J-shaped, the two ends of the groove 2 are asymmetrical structures.

[0044] In a further embodiment of the present invention, at least one end of the groove 2 is bent toward a protrusion 3.

[0045] Preferably, the length of the groove 2 is greater than the length of the protrusion 3.

[0046] Preferably, the length direction of the protrusion 3 is arranged along the surface direction of the circular cross-section of the sealing ring body 1.

[0047] In a further embodiment of the present invention, the groove 2 includes a first groove 21, a second groove 22 and a third groove 23 connected in sequence along its length direction. The first groove 21 and the third groove 23 are located in the second groove 22 and have an asymmetrical structure. The third groove 23 is bent toward a protrusion 3 and the length of the third groove 23 is not less than the length of the first groove 21.

[0048] The depths of the first groove 21, the second groove 22, and the third groove 23 are equal.

[0049] Preferably, the first groove 21 may also be arc-shaped, including bending in the direction of a protrusion 3 or bending in the opposite direction of the protrusion 3.

[0050] When there is no pressure, water will flow through the second groove 22, which can detect whether there is pressure. When the fit between the sealing ring body 1 and the pipe is too tight, due to the setting of the third groove 23, the bottom of the connection between the third groove 23 and the second groove 22 will also extend along the radial cross-section of the sealing ring body 1, making the bottom of the connection arc-shaped. Therefore, when water flows through the third groove 23, some water will flow through the second groove 22, which further serves to detect whether there is pressure.

[0051] Therefore, the length of the groove 2 is extended, and the entire groove is set along the radial section surface of the sealing ring body 1. The depth of the groove 1 along its length direction is consistent, which can ensure that the detection function can play its role.

[0052] First embodiment:

[0053] In a further embodiment of the present invention, two grooves 2 are provided on the inner side of the sealing ring body 1, and the two grooves 2 are symmetrically arranged along the central axis of the sealing ring body 1.

[0054] In a further embodiment of this utility model, two protrusions 3 located on both sides of one groove 2 and two protrusions 3 located on both sides of another groove 2 are symmetrically arranged along the central axis of the sealing ring body 1.

[0055] Second embodiment:

[0056] In a further embodiment of the present invention, the inner side of the sealing ring body 1 is provided with three grooves 2, the three grooves 2 are arranged at equal intervals along the inner circumference of the sealing ring body 1, and two protrusions 3 located on both sides of the same groove 2 form a protrusion group, the three protrusion groups are arranged at equal intervals along the inner circumference of the sealing ring body 1.

[0057] The sealing ring body 1 of this utility model has a groove 2 and a protrusion 3 on its inner side. When leakage occurs, fluid will leak through the groove 2, thus preventing leakage. At the same time, when the fluid pressure is too high, the protrusion 3 ensures that the groove 2 is not squeezed and loses its anti-leakage function. Compared with an anti-leakage sealing ring that only has a groove 2, the anti-leakage function is better by setting a groove 2 with a certain concave volume and a protrusion 3 with a certain convex volume. At the same time, by setting a reasonable distance and volume between the protrusion 3 and the groove 2, when the pipe is clamped, the protrusion 3 can effectively fill the groove 2, and both the groove 2 and the protrusion 3 are pulled tight and fit against the pipe, ensuring a sealing effect.

[0058] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A press-fit pipe fitting sealing ring, characterized in that, include: The sealing ring body has several grooves on its inner side, and at least one protrusion is provided on both sides of each groove on its inner side. The two protrusions on both sides of the groove are equidistant from the groove, and the distance between them is 1~3mm.

2. The compression fitting sealing ring according to claim 1, characterized in that, Several grooves are arranged at equal intervals along the inner circumference of the sealing ring body.

3. The press-fit pipe fitting sealing ring according to claim 1, characterized in that, The sealing ring body has a circular cross-section along the radial direction and an annular cross-section along the circumferential direction.

4. The compression fitting sealing ring according to claim 1, characterized in that, The length of the groove is greater than 1 / 3 of the cross-sectional perimeter of the sealing ring body.

5. The press-fit pipe fitting sealing ring according to claim 1, characterized in that, The total volume of the protrusions of the plurality of protrusions is 1.2 to 2.5 times the total volume of the recesses of the plurality of grooves.

6. The press-fit pipe fitting sealing ring according to claim 3, characterized in that, The groove is C-shaped, L-shaped, or J-shaped; the groove is arranged along the surface direction of the circular cross-section of the sealing ring body; when the groove is J-shaped, the two ends of the groove are asymmetrical; at least one end of the groove is bent toward one of the protrusions; the groove includes a first groove, a second groove, and a third groove connected in sequence along its length direction, the first groove and the third groove are asymmetrically arranged at the two ends of the second groove, the third groove is bent toward one of the protrusions, and the length of the third groove is not less than the length of the first groove.

7. The press-fit pipe fitting sealing ring according to claim 2, characterized in that, The inner side of the sealing ring body is provided with two grooves, which are symmetrically arranged along the central axis of the sealing ring body.

8. The press-fit pipe fitting sealing ring according to claim 7, characterized in that, The two protrusions located on both sides of one of the grooves and the two protrusions located on both sides of the other groove are symmetrically arranged along the central axis of the sealing ring body.

9. The press-fit pipe fitting sealing ring according to claim 2, characterized in that, The inner side of the sealing ring body is provided with three grooves, which are equally spaced along the inner circumference of the sealing ring body. Two protrusions located on both sides of the same groove form a protrusion group, and the three protrusion groups are equally spaced along the inner circumference of the sealing ring body.

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