Novel end face sealing gasket capable of preventing leakage

Abstract

The utility model discloses a novel end face sealing gasket capable of preventing leakage, which relates to the technical field of sealing gaskets and comprises a first ring piece and a second ring piece, the first ring piece and the second ring piece are the same in specification and are both arranged in the middle of two groups of flange plates, and the first ring piece and the second ring piece are arranged in parallel. The flange plate is fixedly connected to one end of the pipe body, through holes are formed in the top of the first ring piece and the top of the second ring piece, the through holes and positioning holes in the top of the flange plate are the same in circle center, positioning assemblies are arranged in the through holes, and a connecting assembly is arranged on one side of the first ring piece. The first ring piece is connected with the second ring piece through the connecting assembly, and the first ring piece and the second ring piece are both connected with a second sealing groove in one side of the flange plate in a clamped mode. According to the utility model, the sealing performance of the pipelines after butt joint and fixation can be effectively improved, and the situation of leakage in the subsequent energy conveying process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing gaskets, in particular to a novel end face sealing gasket for preventing leakage. Background Art

[0002] At present, in the process of transporting natural gas, coal gas and other gas energy through pipelines, the sealing of pipelines is particularly important.

[0003] When connecting pipes, gaskets are required at the joint flanges to ensure a tight seal and prevent water or air leaks. Currently, flat-end flange connections utilize smooth rubber flange gaskets with mounting lugs as seals. However, due to fluctuations in pipe orifice dimensions and uneven or non-parallel flange surfaces during production and installation, these gaskets can leak and cause safety hazards. Therefore, a new, leak-resistant end-face sealing gasket is urgently needed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology and propose a new type of end face sealing gasket to prevent leakage. Its advantages are: the sealing gasket can effectively improve the sealing of the pipeline after docking and fixing, and avoid leakage during the subsequent energy transmission process.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A novel end face sealing gasket for preventing leakage includes a first ring piece and a second ring piece. The first ring piece and the second ring piece have the same specifications. The first ring piece and the second ring piece are both arranged in the middle of two sets of flanges. The flanges are fixedly connected to one end of a pipe body.

[0007] The tops of the first ring piece and the second ring piece are both provided with through holes, and the centers of the through holes and the positioning holes on the top of the flange are the same;

[0008] A positioning component is provided inside the through hole;

[0009] A connecting assembly is provided on one side of the first ring piece, and the first ring piece is connected to the second ring piece through the connecting assembly, and the first ring piece and the second ring piece are both clamped with the second sealing groove on one side of the flange;

[0010] A locking assembly is provided on one side of the first ring piece and the second ring piece.

[0011] Through the above technical solution: the sealing gasket can effectively improve the sealing of the pipeline after it is butt-jointed and fixed, thereby avoiding leakage during the subsequent energy transmission process.

[0012] The present invention is further configured such that semicircular grooves are provided on both side outer walls of the first ring piece and the second ring piece, and the semicircular grooves are distributed at equal distances on both side outer walls of the first ring piece and the second ring piece.

[0013] Through the above technical solution, the semicircular grooves provided on the surfaces of the first ring piece and the second ring piece can allow the glue to quickly penetrate therein, thereby improving the adhesion between the first ring piece and the second ring piece and the flange.

[0014] The present invention is further configured such that a sealing strip is provided on one side of the first ring piece and the second ring piece, and the sealing strip is matched with a first sealing groove on one side of the flange.

[0015] Through the above technical solution: by cooperating with the first sealing groove on one side of the flange, the sealing performance of the two sets of pipe bodies after docking can be further ensured.

[0016] The utility model is further configured such that the positioning assembly includes a positioning ring fixedly connected to the circumferential inner wall of the through hole, a shrinkage tube fixedly connected to the bottom of the positioning ring, and shrinkage grooves equidistantly distributed in a circular pattern on the circumferential outer wall of the shrinkage tube.

[0017] With the above technical solution, when the fixing bolts are rotated to lock and fix the flange, the fixing bolts will squeeze the shrink tube, and the shrink tube will be deformed through the shrinkage grooves provided in the outer wall, thereby ensuring the tightness of the fixing bolts.

[0018] The utility model is further configured as follows: the connecting assembly includes connecting belt ends and a connecting belt middle portion, the number of the connecting belt ends is two groups, the two groups of connecting belt ends are arranged on both sides of the connecting belt middle portion, the two groups of connecting belt ends are fixedly connected to the first ring piece and the second ring piece respectively, and the thickness of the connecting belt ends is greater than the thickness of the connecting belt middle portion.

[0019] The above technical solution avoids the situation where a single set of ring segments is lost before the first ring segment and the second ring segment are installed.

[0020] The present invention is further configured such that anti-skid grooves are provided at equal distances on the end of the connecting belt and one side of the middle of the connecting belt, and the cross section of the anti-skid grooves is in an arc shape.

[0021] Through the above technical solution, it is convenient for people to better pinch the connecting component to install the first ring piece and the second ring piece.

[0022] The present invention is further configured such that the locking assembly includes locking holes provided at both ends of the first ring piece, and both ends of the second ring piece are fixedly connected with locking rods, and the locking rods cooperate with the locking holes.

[0023] Through the above technical solution, the first ring piece and the second ring piece are quickly connected at their ends through the cooperation of the locking rod and the locking hole.

[0024] The present invention is further configured such that an elastic plate is fixedly connected to the top outer wall of the first ring piece, a locking groove is provided on the top outer wall of the second ring piece, and the elastic plate cooperates with the locking groove.

[0025] Through the above technical solution: through the cooperation of the elastic plate and the locking groove, the stability of the side surfaces of the first ring piece and the second ring piece after being combined can be ensured.

[0026] The beneficial effects of the utility model are:

[0027] 1. A new type of end face sealing gasket for preventing leakage is provided with a first ring piece and a second ring piece. When sealing the end of the pipeline, the first ring piece and the second ring piece are first clamped into the second sealing groove on one side of the flange, thereby achieving preliminary and rapid installation of the first ring piece and the second ring piece. In addition, the sealing gasket is a split design, which improves people's installation efficiency of the sealing gasket.

[0028] 2. A new type of end face sealing gasket that prevents leakage is provided with a locking assembly, which allows the first ring piece and the second ring piece to be quickly connected at the end through the cooperation of the locking rod and the locking hole. At the same time, the cooperation of the elastic plate and the locking groove can ensure the stability of the side surfaces of the first ring piece and the second ring piece after being combined.

[0029] 3. A new type of end face sealing gasket to prevent leakage is provided with a semicircular groove. After the first ring piece and the second ring piece are installed, sealant is applied on their surfaces, and another flange is quickly docked with the flange. At this time, the sealing strip cooperates with the first sealing groove on one side of the flange, which can further ensure the sealing of the two sets of pipe bodies after docking. At the same time, the semicircular grooves on the surfaces of the first ring piece and the second ring piece can allow glue to penetrate quickly into them, thereby improving the adhesion between the first ring piece and the second ring piece and the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of a new type of end face sealing gasket for preventing leakage proposed by the utility model;

[0031] Figure 2 This is a schematic diagram of the split structure of the first ring piece and the second ring piece of a new type of end face sealing gasket for preventing leakage proposed by the utility model;

[0032] Figure 3 A new type of end face sealing gasket for preventing leakage proposed by the utility model Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0033] Figure 4 This is a schematic diagram of the structure of a new type of end face sealing gasket for preventing leakage proposed by the utility model after installation;

[0034] Figure 5 This is a schematic diagram of the half-section structure of a new type of end face sealing gasket for preventing leakage proposed by the utility model after installation;

[0035] Figure 6 A new type of end face sealing gasket for preventing leakage proposed by the utility model Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0036] In the figure: 1. First ring piece; 2. Second ring piece; 3. Sealing strip; 4. Semicircular groove; 5. Positioning assembly; 5001. Positioning ring; 5002. Shrinkage groove; 5003. Shrinkage tube; 6. Connecting assembly; 6001. End of connecting belt; 6002. Anti-slip groove; 6003. Middle of connecting belt; 7. Locking assembly; 7001. Elastic plate; 7002. Locking groove; 7003. Locking rod; 7004. Locking hole; 8. Through hole; 9. Flange; 10. Positioning hole; 11. First sealing groove; 12. Tube body; 13. Second sealing groove. DETAILED DESCRIPTION

[0037] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0038] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0040] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0041] Reference Figures 1-6 A new type of end face sealing gasket for preventing leakage includes a first ring piece 1 and a second ring piece 2. The first ring piece 1 and the second ring piece 2 have the same specifications. The first ring piece 1 and the second ring piece 2 are both arranged in the middle of two sets of flanges 9. The flange 9 is fixedly connected to one end of the pipe body 12;

[0042] A through hole 8 is formed on the top of each of the first ring piece 1 and the second ring piece 2. The through hole 8 has the same center as the positioning hole 10 on the top of the flange 9.

[0043] A positioning component 5 is provided inside the through hole 8;

[0044] A connecting assembly 6 is provided on one side of the first ring piece 1, and the first ring piece 1 is connected to the second ring piece 2 through the connecting assembly 6. The first ring piece 1 and the second ring piece 2 are both clamped with the second sealing groove 13 on one side of the flange 9;

[0045] A locking assembly 7 is provided on one side of the first ring piece 1 and the second ring piece 2. The sealing gasket can effectively improve the sealing performance of the pipeline after the pipeline is docked and fixed, thereby avoiding leakage during the subsequent energy transmission process.

[0046] Specifically, semicircular grooves 4 are provided on both side outer walls of the first ring piece 1 and the second ring piece 2, and the semicircular grooves 4 are distributed at equal distances on both side outer walls of the first ring piece 1 and the second ring piece 2. The semicircular grooves 4 provided on the surface of the first ring piece 1 and the second ring piece 2 can allow the glue to penetrate quickly therein, thereby improving the adhesion between the first ring piece 1 and the second ring piece 2 and the flange plate 9.

[0047] Specifically, a sealing strip 3 is provided on one side of the first ring piece 1 and the second ring piece 2, and the sealing strip 3 cooperates with the first sealing groove 11 on one side of the flange 9. By cooperating with the first sealing groove 11 on one side of the flange 9, the sealing performance of the two sets of tube bodies 12 after docking can be further ensured.

[0048] Specifically, the positioning assembly 5 includes a positioning ring 5001 fixedly connected to the circumferential inner wall of the through hole 8, a shrinkage tube 5003 fixedly connected to the bottom of the positioning ring 5001, and shrinkage grooves 5002 equidistantly distributed in a circular pattern are provided on the circumferential outer wall of the shrinkage tube 5003. When the fixing bolts are rotated to lock and fix the flange 9, the fixing bolts will squeeze the shrinkage tube 5003, and the shrinkage tube 5003 will be deformed through the shrinkage grooves 5002 provided on the outer wall, thereby ensuring the tightness of the fixing bolts.

[0049] Specifically, the connecting component 6 includes a connecting belt end portion 6001 and a connecting belt middle portion 6003. There are two groups of connecting belt end portions 6001. The two groups of connecting belt end portions 6001 are arranged on both sides of the connecting belt middle portion 6003. The two groups of connecting belt end portions 6001 are fixedly connected to the first ring piece 1 and the second ring piece 2 respectively. The thickness of the connecting belt end portion 6001 is greater than the thickness of the connecting belt middle portion 6003, so as to avoid the loss of a single group of ring pieces before the first ring piece 1 and the second ring piece 2 are installed.

[0050] Specifically, anti-slip grooves 6002 are equidistantly distributed on one side of the end 6001 of the connecting belt and the middle 6003 of the connecting belt. The cross-section of the anti-slip grooves 6002 is arc-shaped, which makes it easier for people to pinch the connecting component 6 to install the first ring piece 1 and the second ring piece 2.

[0051] Specifically, the locking assembly 7 includes locking holes 7004 opened at both ends of the first ring piece 1, and both ends of the second ring piece 2 are fixedly connected with locking rods 7003, and the locking rods 7003 cooperate with the locking holes 7004. The first ring piece 1 and the second ring piece 2 are quickly connected at the ends through the cooperation of the locking rods 7003 and the locking holes 7004.

[0052] Specifically, the top outer wall of the first ring piece 1 is fixedly connected with an elastic plate 7001, and the top outer wall of the second ring piece 2 is provided with a locking groove 7002. The elastic plate 7001 cooperates with the locking groove 7002. Through the cooperation of the elastic plate 7001 and the locking groove 7002, the stability of the side of the first ring piece 1 and the second ring piece 2 after combination can be ensured.

[0053] Working principle: When sealing the end of the pipe, the first ring piece 1 and the second ring piece 2 are first clamped into the second sealing groove 13 on one side of the flange 9 to achieve preliminary and quick installation of the first ring piece 1 and the second ring piece 2. The sealing gasket is a split design, which improves people's installation efficiency of the sealing gasket. Then, the first ring piece 1 and the second ring piece 2 are quickly connected to each other through the cooperation of the locking rod 7003 and the locking hole 7004. At the same time, the cooperation between the elastic plate 7001 and the locking groove 7002 can ensure the stability of the side assembly of the first ring piece 1 and the second ring piece 2. After the first ring piece 1 and the second ring piece 2 are installed, sealant is applied to their surfaces, and another flange 9 is quickly connected to the flange 9. At this time, the sealing strip 3 cooperates with the first sealing groove 11 on one side of the flange 9 to further ensure the sealing of the two groups of pipe bodies 12 after connection. At the same time, the semicircular grooves 4 opened on the surfaces of the first ring piece 1 and the second ring piece 2 can allow the glue to quickly penetrate into them, thereby improving the adhesion between the first ring piece 1 and the second ring piece 2 and the flange 9.

[0054] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel end face sealing gasket for preventing leakage, comprising a first ring piece (1) and a second ring piece (2), characterized in that: The first ring piece (1) and the second ring piece (2) have the same specifications. The first ring piece (1) and the second ring piece (2) are both arranged in the middle of two sets of flanges (9). The flanges (9) are fixedly connected to one end of the pipe body (12). The tops of the first ring piece (1) and the second ring piece (2) are both provided with through holes (8). The through hole (8) and the positioning hole (10) on the top of the flange (9) have the same center; A positioning component (5) is provided inside the through hole (8); A connecting assembly (6) is provided on one side of the first ring piece (1), and the first ring piece (1) is connected to the second ring piece (2) via the connecting assembly (6), and both the first ring piece (1) and the second ring piece (2) are clamped to a second sealing groove (13) on one side of the flange (9); A locking assembly (7) is provided on one side of each of the first ring piece (1) and the second ring piece (2).

2. A novel end face sealing gasket for preventing leakage according to claim 1, characterized in that: Semicircular grooves (4) are provided on both outer walls of the first ring piece (1) and the second ring piece (2), and the semicircular grooves (4) are distributed at equal distances on both outer walls of the first ring piece (1) and the second ring piece (2).

3. A novel end face sealing gasket for preventing leakage according to claim 2, characterized in that: A sealing strip (3) is provided on one side of the first ring piece (1) and the second ring piece (2), and the sealing strip (3) is matched with a first sealing groove (11) on one side of the flange (9).

4. A novel end face sealing gasket for preventing leakage according to claim 3, characterized in that: The positioning assembly (5) comprises a positioning ring (5001) fixedly connected to the circumferential inner wall of the through hole (8), a shrinkage tube (5003) fixedly connected to the bottom of the positioning ring (5001), and shrinkage grooves (5002) distributed in a circular pattern and at equal distances are formed on the circumferential outer wall of the shrinkage tube (5003).

5. A novel end face sealing gasket for preventing leakage according to claim 4, characterized in that: The connecting assembly (6) includes connecting belt ends (6001) and a connecting belt middle portion (6003), wherein the connecting belt ends (6001) are in two groups, and the two groups of connecting belt ends (6001) are arranged on both sides of the connecting belt middle portion (6003). The two groups of connecting belt ends (6001) are fixedly connected to the first ring piece (1) and the second ring piece (2), respectively, and the thickness of the connecting belt ends (6001) is greater than the thickness of the connecting belt middle portion (6003).

6. A novel end face sealing gasket for preventing leakage according to claim 5, characterized in that: The end portion (6001) of the connecting belt and one side of the middle portion (6003) of the connecting belt are both provided with anti-skid grooves (6002) distributed at equal distances, and the cross section of the anti-skid grooves (6002) is in the shape of an arc.

7. A novel end face sealing gasket for preventing leakage according to claim 1, characterized in that: The locking assembly (7) comprises locking holes (7004) provided at both ends of the first ring piece (1), and both ends of the second ring piece (2) are fixedly connected with locking rods (7003), and the locking rods (7003) cooperate with the locking holes (7004).

8. A novel end face sealing gasket for preventing leakage according to claim 7, characterized in that: The top outer wall of the first ring piece (1) is fixedly connected with an elastic plate (7001), and the top outer wall of the second ring piece (2) is provided with a locking groove (7002), and the elastic plate (7001) cooperates with the locking groove (7002).

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