Union flange for oil exploitation equipment

Abstract

The utility model relates to the technical field of flanges, in particular to a union flange for oil exploitation equipment, which comprises a pipeline and a flange main body, and a threaded pipe is mounted at one end of the flange main body; by means of the sealing ring at one end of the fixing ring, when the threaded pipe is screwed and inserted into the connecting threaded hole, the sealing performance of the connecting position of the fixing ring and the pipeline can be enhanced, the elastic ball at one end of the sealing gasket is inserted into the limiting groove, the sealing gasket is not prone to moving in the connecting threaded hole, and then the sealing performance of the connecting position of the threaded pipe and the connecting threaded hole is enhanced; through a spring at one end of the moving block, when the threaded pipe is screwed in place, the moving block can be pushed into a positioning groove, so that a worker can conveniently find whether screwing is in place or not when the threaded pipe is connected with a pipeline in time, and the situation that the sealing performance of the connecting position of the threaded pipe is reduced due to the fact that screwing is not in place is avoided; the connecting stability of the pipeline and the flange body can be enhanced, and normal use of the union flange and the petroleum pipeline is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a union flange for oil extraction equipment. Background Art

[0002] Flange, also known as flange flange or flange, is a part that connects shafts to each other and is used to connect pipe ends. Union flange is a mechanical component used for joints and is also a part for connecting pipes. It is suitable for standard working environments and acidic working environments. It is widely used in various industrial piping systems, including but not limited to chemical, petroleum, natural gas, light industry, textile, papermaking, food, medicine and other industries. Union flanges are used to connect oil pipelines in oil extraction equipment.

[0003] In the prior art, a union flange is usually composed of a flange, a gasket and bolts connected to each other. One end of the flange is connected to the flange with bolts, and the other end is connected to the pipeline through a thread. The two pipes can be separated without moving the pipeline, which is convenient for maintenance. However, when the existing union flange for oil extraction equipment is installed and used, it is difficult for the staff to promptly detect whether it is screwed in place when connected to the pipeline. If it is not screwed in place, the sealing of the connection with the pipeline will be reduced, affecting the normal use of the union flange and the oil pipeline. Utility Model Content

[0004] The purpose of the utility model is to provide a union flange for oil production equipment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a union flange for oil production equipment, comprising: a pipeline and a flange body, a threaded pipe mounted on one end of the flange body, a connecting threaded hole formed on the end of the pipeline near the threaded pipe, a fixing ring sleeved on the outer wall of the flange body near the threaded pipe, and a sealing ring disposed between the fixing ring and the threaded pipe;

[0006] A sealing gasket is installed inside the connecting threaded hole, an end of the sealing gasket away from the threaded tube is connected to an elastic sphere, and a limiting groove is provided on the inner wall of the connecting threaded hole close to the elastic sphere;

[0007] A positioning groove is provided on the side wall of the pipe close to the flange body, a positioning block is installed on the outer wall of the fixed ring, a moving block is slidably installed on the end of the positioning block close to the positioning groove, a screw is threadedly installed on the other end of the positioning block, a push plate is installed on one end of the screw, and a spring is connected to the end of the moving block close to the push plate.

[0008] Preferably, one end of the threaded tube is fixedly mounted on one end of the flange body, and the other end of the threaded tube is inserted into the connecting threaded hole and threadedly connected to the inner wall of the connecting threaded hole.

[0009] Preferably, the fixing ring is fixedly sleeved on the outer wall of the flange body, and the sealing ring is fixedly installed on one end of the fixing ring close to the threaded pipe.

[0010] Preferably, four elastic spheres are evenly arranged, one end of each of the four elastic spheres close to the sealing gasket is fixedly connected to an elastic column, the other ends of the four elastic spheres are inserted into adjacent limiting grooves, and one end of each of the four elastic columns is fixedly mounted on the sealing gasket.

[0011] Preferably, two positioning blocks are symmetrically provided and fixedly mounted on both sides of the fixed ring, and a movable groove is provided at one end of the two positioning blocks close to the pipeline, and the inner walls of the two movable grooves are slidably connected to the adjacent movable blocks.

[0012] Preferably, one end of the two moving blocks is slidably inserted into the adjacent positioning grooves, the other ends of the two moving blocks are fixedly connected to the adjacent springs, and the other ends of the two springs are fixedly mounted on the inner walls of the adjacent moving grooves.

[0013] Preferably, the two positioning blocks are provided with threaded holes at one end away from the pipe, one end of the two threaded holes is connected to the adjacent movable groove, one end of the two screws passes through the threaded holes and is inserted into the corresponding movable groove, and the outer walls of the two screws are threadedly connected to the inner walls of the adjacent threaded holes.

[0014] Preferably, one end of each of the two screw rods is fixedly connected to the adjacent push plates, and the two springs are sleeved on the outside of the adjacent screw rods and push plates.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model discloses a sealing ring at one end of a fixing ring, when the threaded pipe is screwed into the connecting threaded hole, the sealing performance of the connection between the fixing ring and the pipe can be enhanced; by inserting the elastic sphere at one end of the sealing gasket into the limiting groove, the sealing gasket is not easy to move in the connecting threaded hole, thereby enhancing the sealing performance of the connection between the threaded pipe and the connecting threaded hole; by using the spring at one end of the moving block, the moving block can be pushed into the positioning groove when the threaded pipe is screwed into place, so that the staff can find out whether the screwing is in place when connected to the pipe in time, so as to avoid reducing the sealing performance of the connection with the pipe due to improper screwing; by rotating the screw to tighten the moving block, the connection stability of the pipe and the flange body can be enhanced, which is beneficial to the normal use of the union flange and the oil pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a three-dimensional cross-sectional diagram of the overall structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0020] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0021] Figure 5 It is an exploded schematic diagram of the overall structure of the utility model.

[0022] In the figure: 1. Pipe; 2. Flange body; 3. Threaded pipe; 4. Connecting threaded hole; 5. Fixing ring; 6. Sealing gasket; 7. Limiting groove; 8. Elastic column; 9. Elastic sphere; 10. Sealing ring; 11. Positioning block; 12. Threaded hole; 13. Screw; 14. Push plate; 15. Positioning groove; 16. Moving block; 17. Spring; 18. Moving groove. DETAILED DESCRIPTION

[0023] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 5 The utility model provides a technical solution: a union flange for oil production equipment, comprising: a pipeline 1 and a flange body 2, a threaded pipe 3 mounted on one end of the flange body 2, a connecting threaded hole 4 formed on the end of the pipeline 1 near the threaded pipe 3, a fixing ring 5 sleeved on the outer wall of the flange body 2 near the threaded pipe 3, and a sealing ring 10 disposed between the fixing ring 5 and the threaded pipe 3; one end of the threaded pipe 3 is fixedly mounted on one end of the flange body 2, and the other end of the threaded pipe 3 is inserted into the connecting threaded hole 4 and threadedly connected to the inner wall of the connecting threaded hole 4. The fixing ring 5 is fixedly sleeved on the outer wall of the flange body 2, and the sealing ring 10 is fixedly mounted on the end of the fixing ring 5 near the threaded pipe 3. When the threaded pipe 3 is screwed into the connecting threaded hole 4, the fixing ring 5 and one end of the pipeline 1 are tightly connected via the sealing ring 10.

[0025] A sealing gasket 6 is installed inside the connecting threaded hole 4, and an elastic sphere 9 is connected to the end of the sealing gasket 6 away from the threaded tube 3, and a limiting groove 7 is provided on the inner wall of the connecting threaded hole 4 near the elastic sphere 9; four elastic spheres 9 are evenly arranged, and the ends of the four elastic spheres 9 close to the sealing gasket 6 are fixedly connected to elastic columns 8, and the other ends of the four elastic spheres 9 are inserted into adjacent limiting grooves 7, and one end of the four elastic columns 8 is fixedly installed on the sealing gasket 6. The elastic sphere 9 can be limited by the limiting groove 7, so that the elastic sphere 9 is not easy to disengage from the limiting groove 7, and then the threaded tube 3 is not easy to drive the sealing gasket 6 to move when the threaded tube 3 is rotated and inserted into the connecting threaded hole 4, so as not to affect the sealing of the connection between the threaded tube 3 and the connecting threaded hole 4.

[0026] A positioning groove 15 is provided on the side wall of the end of the pipe 1 near the flange body 2, and a positioning block 11 is installed on the outer wall of the fixed ring 5. A moving block 16 is slidably installed on the end of the positioning block 11 near the positioning groove 15. A screw 13 is threadedly installed on the other end of the positioning block 11, and a push plate 14 is installed on one end of the screw 13. A spring 17 is connected to the end of the moving block 16 near the push plate 14. Two positioning blocks 11 are symmetrically arranged and fixedly installed on both sides of the fixed ring 5. The two positioning blocks 11 have a moving groove 18 on the end near the pipe 1. The inner walls of the two moving grooves 18 are slidably connected to the adjacent moving blocks 16, and the tops of the ends of the two moving blocks 16 away from the positioning blocks 11 are curved, so that the pipe 1 can first squeeze the curved surface of the positioning block 11 to enter the moving groove 18. One end of each movable block 16 slides into the adjacent positioning slot 15, and the other end of each movable block 16 is fixedly connected to the adjacent spring 17. The other end of each spring 17 is fixedly mounted on the inner wall of the adjacent movable slot 18. When the threaded tube 3 is screwed into place, the two movable blocks 16 correspond to the adjacent positioning slot 15. The two positioning blocks 11 are each provided with a threaded hole 12 at the end away from the pipe 1. One end of each threaded hole 12 is connected to the adjacent movable slot 18. One end of each screw rod 13 passes through the threaded hole 12 and is inserted into the corresponding movable slot 18. The outer wall of each screw rod 13 is threadedly connected to the inner wall of the adjacent threaded hole 12, so that the rotation of the screw rod 13 drives the push plate 14 to rotate and move accordingly. One end of each screw rod 13 is fixedly connected to the adjacent push plate 14, and the two springs 17 are sleeved on the outside of the adjacent screw rod 13 and push plate 14, so that the push plate 14 can tighten and limit the movable block 16.

[0027] When the device is working, when the threaded pipe 3 is screwed into the connecting threaded hole 4 through the sealing ring 10 at one end of the fixing ring 5, the sealing performance of the connection between the fixing ring 5 and the pipeline 1 can be enhanced. By inserting the elastic sphere 9 at one end of the sealing gasket 6 into the limiting groove 7, the sealing gasket 6 is not easy to move in the connecting threaded hole 4, thereby enhancing the sealing performance of the connection between the threaded pipe 3 and the connecting threaded hole 4. Through the elastic action of the spring 17 at one end of the moving block 16, the moving block 16 can be pushed into the positioning groove 15 when the threaded pipe 3 is screwed into place. At this time, the spring 17 is in a natural state, which is convenient for the staff to promptly detect whether the threaded rod 4 is screwed into place when connected to the pipeline 1, so as to avoid reducing the sealing performance of the connection with the pipeline 1 due to inadequate screwing. By rotating the screw 13 to tighten the moving block 16, the connection stability of the pipeline 1 and the flange body 2 can be enhanced, which is beneficial to the normal use of the union flange and the oil pipeline.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A union flange for oil extraction equipment, comprising: A pipe (1) and a flange body (2), one end of the flange body (2) being mounted with a threaded pipe (3), characterized in that: a connecting threaded hole (4) is provided at one end of the pipe (1) close to the threaded pipe (3), a fixing ring (5) is sleeved on the outer wall of the flange body (2) close to the threaded pipe (3), and a sealing ring (10) is provided between the fixing ring (5) and the threaded pipe (3); A sealing gasket (6) is installed inside the connecting threaded hole (4), an end of the sealing gasket (6) away from the threaded tube (3) is connected to an elastic sphere (9), and a limiting groove (7) is provided on the inner wall of the connecting threaded hole (4) close to the elastic sphere (9); A positioning groove (15) is provided on the side wall of one end of the pipe (1) close to the flange body (2), a positioning block (11) is installed on the outer wall of the fixed ring (5), a moving block (16) is slidably installed on one end of the positioning block (11) close to the positioning groove (15), a screw rod (13) is threadedly installed on the other end of the positioning block (11), a push plate (14) is installed on one end of the screw rod (13), and a spring (17) is connected to one end of the moving block (16) close to the push plate (14).

2. The union flange for oil production equipment according to claim 1, characterized in that: One end of the threaded tube (3) is fixedly mounted on one end of the flange body (2), and the other end of the threaded tube (3) is inserted into the connecting threaded hole (4) and threadedly connected to the inner wall of the connecting threaded hole (4).

3. The union flange for oil production equipment according to claim 1, characterized in that: The fixing ring (5) is fixedly sleeved on the outer wall of the flange body (2), and the sealing ring (10) is fixedly installed on one end of the fixing ring (5) close to the threaded pipe (3).

4. The union flange for oil production equipment according to claim 1, characterized in that: Four elastic spheres (9) are evenly arranged, and one end of each of the four elastic spheres (9) close to the sealing gasket (6) is fixedly connected to an elastic column (8), the other ends of each of the four elastic spheres (9) are inserted into adjacent limiting grooves (7), and one end of each of the four elastic columns (8) is fixedly mounted on the sealing gasket (6).

5. The union flange for oil production equipment according to claim 1, characterized in that: Two positioning blocks (11) are symmetrically arranged and fixedly mounted on both sides of the fixed ring (5). A movable groove (18) is provided at one end of the two positioning blocks (11) close to the pipe (1). The inner walls of the two movable grooves (18) are slidably connected to the adjacent movable blocks (16).

6. The union flange for oil production equipment according to claim 5, characterized in that: One end of each of the two moving blocks (16) is slidably inserted into the adjacent positioning groove (15), the other end of each of the two moving blocks (16) is fixedly connected to the adjacent spring (17), and the other end of each of the two springs (17) is fixedly mounted on the inner wall of the adjacent moving groove (18).

7. The union flange for oil production equipment according to claim 5, characterized in that: The two positioning blocks (11) are each provided with a threaded hole (12) at one end away from the pipe (1), one end of each of the two threaded holes (12) is connected to an adjacent movable groove (18), one end of each of the two screw rods (13) passes through the threaded hole (12) and is inserted into the corresponding movable groove (18), and the outer walls of the two screw rods (13) are threadedly connected to the inner walls of the adjacent threaded hole (12).

8. The union flange for oil production equipment according to claim 7, characterized in that: One end of each of the two screw rods (13) is fixedly connected to an adjacent push plate (14), and two springs (17) are sleeved outside the adjacent screw rods (13) and push plates (14).

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