Anti-bouncing device used in oil pipe air-tight seal detection

Abstract

The utility model relates to the technical field of oil pipe air-tight seal detection, and discloses an anti-bouncing device used in oil pipe air-tight seal detection, which comprises a pipe body, a coupling part is screwed on the top of the pipe body, a top ring plate is arranged at the top of the edge, a spring is fixedly arranged at the center of the bottom side of the top ring plate, and the top ring plate is provided with a spring. A spring is fixedly mounted on the top of the coupling part, a bottom ring plate is fixedly mounted at the bottom of the spring, the bottom ring plate is slidably connected into the pipe body, a pressure relief hole is formed in the outer side of the bottom of the coupling part and penetrates through the pipe body, a pressure relief valve is arranged in the pressure relief hole, and a positioning mounting assembly for positioning is arranged on the outer side of the top ring plate. The bottom ring plate is blocked at the top of the detection device, so that the detection device can be prevented from jumping out, when the air pressure is too large, the pressure relief hole is exposed, the plug is pushed by the air pressure to slide along the inner wall of the pressure relief hole until the plug is ejected out, and pressure is relieved outwards, so that accidents caused by too large air pressure can be avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pipe air tightness detection, in particular to an anti-jump device used in oil pipe air tightness detection. Background Art

[0002] Oil pipe is an industrial product that transports crude oil and natural gas from the oil and gas layer to the surface after drilling is completed. It is used to withstand the pressure generated during the mining process. Since it is used for the transportation of oil and gas, the air tightness requirements are very high. It is necessary to ensure that the oil pipe does not leak when transporting oil and gas, and therefore the air tightness of the oil pipe needs to be tested.

[0003] As disclosed in the Chinese patent with publication number CN211527736U, there is an anti-jump device for oil pipe air tightness detection. It includes: a cylinder and a blocking part; the cylinder is a through cylinder with two ends open, and the outer wall of the first end of the cylinder is provided with an external thread for connecting with the internal thread of the oil pipe coupling; the blocking part is detachably connected or rotatably connected to the second end of the cylinder; wherein, when the blocking part and the second end of the cylinder are in a first connection state, the blocking part is horizontally blocked at the second end opening of the cylinder, partially blocking the opening of the second end of the cylinder, and when the blocking part and the second end of the cylinder are in a second connection state, the blocking part releases the partial blocking of the opening of the second end of the cylinder. The blocking part of the anti-jump device for oil pipe air tightness detection can be in a first connection state with the cylinder, blocking part of the opening of the cylinder, which can prevent the air tightness detection device from jumping out of the oil pipe while ensuring that there is suitable space for the gas pipeline and the steel cable to pass through.

[0004] In the process of implementing this application, the inventor discovered that there are at least the following problems in this technology: although the above technical solution can block the opening to prevent the air tightness detection device from jumping out of the oil pipe, as the leaked gas increases, the air pressure in the sealed space will gradually increase. If the pressure is not cleared and released, it may cause the oil pipe to burst, posing a safety hazard. Therefore, further improvements can be made. Utility Model Content

[0005] In order to solve the above-mentioned problems, the present invention provides the following technical solutions: an anti-jump device for oil pipe airtightness detection, comprising a pipe body, a coupling part is spirally screwed on the top of the pipe body, the top outer side of the coupling part has an edge, a top ring plate is installed on the top of the edge, a spring is fixedly installed on the bottom center of the top ring plate, a bottom ring plate is fixedly installed on the bottom of the spring, and the bottom ring plate is slidably connected to the inside of the pipe body, a pressure relief hole is provided on the bottom outer side of the coupling part, and the pressure relief hole passes through the pipe body, a pressure relief valve is provided inside the pressure relief hole, and a positioning installation component for positioning is provided on the outside of the top ring plate, the top ring plate is fixedly installed by the positioning installation component, and the detection device inside the pipe body can be prevented from jumping out of the pipe by the bottom ring plate. When the air pressure is too high, the pressure relief valve at the pressure relief hole will be opened by squeezing, and then the air will be exhausted and the pressure will be pressed down.

[0006] As an optimization, the pressure relief valve includes a fixed ring fixedly installed on the inner wall of the pressure relief hole and a plug slidably connected to the inside of the pressure relief hole. A tension spring is fixedly installed between the fixed ring and the plug. When the air pressure is excessive, the plug will be pushed out from the pressure relief hole, thereby releasing pressure.

[0007] As an optimization, the plug is made of rubber material, and the plug is tightly against the inner wall of the pressure relief hole, and the pressure relief hole is blocked by the plug to play a sealing role.

[0008] As an optimization, four groups of pressure relief holes are arranged in an array on the outside of the coupling portion, and four groups of the plugs are provided corresponding to the pressure relief holes.

[0009] As an optimization, the positioning and mounting assembly includes a support fixedly mounted on the top side of the top ring plate, the top of the support is rotatably connected to a clamping rod, the bottom of the clamping rod is provided with a slide groove, the inside of the slide groove is slidably connected to a card block, a compression spring is fixedly mounted between the card block and the bottom wall of the slide groove, a fixed block is fixedly mounted at the corresponding card block on the bottom side of the edge of the coupling portion, and the card block and the fixed block are clamped, and by rotating the clamping rod downward, the card block will contact the fixed block, and then it will be pressed to slide into the slide groove, and then the card block will be driven to reset upward by the compression spring, that is, it will be stuck on the outside of the fixed block.

[0010] As an optimization, the supports are installed in four groups around the top ring plate array.

[0011] As an optimization, the two sides where the clamping block and the fixing block contact each other are inclined surfaces with an inclination angle of 45°.

[0012] The beneficial effects of the utility model are:

[0013] 1. The anti-jump device used in oil pipe air tightness detection blocks the top of the detection device through the bottom ring plate to prevent it from jumping out. When the air pressure is too high, the pressure relief hole will be exposed, and the air pressure will push the plug to slide along the inner wall of the pressure relief hole until the plug is pushed out, and then the pressure will be released outward, thereby avoiding accidents caused by excessive air pressure and reducing safety hazards.

[0014] 2. This anti-jump device used in oil pipe airtightness detection is designed by placing the top ring plate flat on the top edge of the pipe body, and then flipping the clamping rod downward so that the clamping rod is buckled on the top ring plate and the outside of the edge. At this time, the clamping block will contact the fixed block, so it will slide into the slide groove under pressure. Then, the compression spring will drive the clamping block to reset upward, that is, it will be stuck on the outside of the fixed block, thereby limiting the installation of the top ring plate, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the pressure relief valve of the utility model;

[0018] Figure 4 This is a schematic diagram of the positioning and installation structure of the utility model.

[0019] In the figure: 1. Pipe body; 2. Coupling part; 3. Top ring plate; 4. Spring; 5. Bottom ring plate; 6. Pressure relief hole; 7. Pressure relief valve; 8. Positioning and mounting assembly; 9. Fixing ring; 10. Plug; 11. Tension spring; 12. Support; 13. Clamping rod; 14. Slide; 15. Block; 16. Compression spring; 17. Fixing block. DETAILED DESCRIPTION

[0020] In the description of this application, it should be understood that the terms "length", "width", "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, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation on this application.

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0022] See also Figure 1-2 The cam 5 is provided with a plurality of springs, each of which is provided with a plurality of springs, each of which is provided with a plurality of springs, and a plurality of springs are provided on the cam 5. The cam 5 is provided with a plurality of springs, each of which is provided with a plurality of springs.

[0023] See also Figure 2-3 The pressure relief valve 7 includes a fixing ring 9 fixedly mounted on the inner wall of the pressure relief hole 6 and a plug 10 slidably connected to the inside of the pressure relief hole 6. Four groups of pressure relief holes 6 are arranged in an array outside the coupling portion 2. Four groups of plugs 10 are provided corresponding to the pressure relief holes 6. The plugs 10 are made of rubber and tightly abut against the inner wall of the pressure relief hole 6. The plugs 10 block the pressure relief hole 6 to play a sealing role and prevent gas leakage during normal operation.

[0024] See also Figure 2-3 A tension spring 11 is fixedly installed between the fixing ring 9 and the plug 10. When the air pressure is too high, the plug 10 will be pushed out from the pressure relief hole 6, and then the pressure will be relieved. The elastic force of the tension spring 11 will pull the plug 10 back to the inside of the pressure relief hole 6, thereby preventing continuous gas leakage.

[0025] See also Figure 4The positioning and installation assembly 8 includes a support 12 fixedly installed on the top side of the top ring plate 3. The support 12 is installed in four groups in an array around the top ring plate 3. The top of the support 12 is rotatably connected to a clamping rod 13. The bottom of the clamping rod 13 is provided with a slide groove 14. The inside of the slide groove 14 is slidably connected with a card block 15. A compression spring 16 is fixedly installed between the card block 15 and the bottom wall of the slide groove 14. A fixing block 17 is fixedly installed at the bottom side of the edge of the coupling portion 2 corresponding to the card block 15, and the card block 15 and the fixing block 17 are clamped. The two sides where the card block 15 and the fixing block 17 contact are inclined surfaces with an inclination angle of 45°. By rotating the clamping rod 13 downward, the card block 15 will contact the fixing block 17, and then it will be pressed and slide into the slide groove 14. Then, the card block 15 will be driven to reset upward by the compression spring 16, that is, it will be stuck on the outside of the fixing block 17, thereby limiting the installation of the top ring plate 3, which is convenient and quick.

[0026] When in use, first twist the coupling part 2 and put it on the top outer side of the tube body 1, then put the bottom ring plate 5 into the tube body 1, at this time the top ring plate 3 is placed flat on the top edge of the tube body 1, and then flip the clamping rod 13 downward so that the clamping rod 13 is buckled on the top ring plate 3 and the outer side of the edge. At this time, the clamping block 15 will contact the fixed block 17, so it will be pressed and slide into the slide groove 14. Then, the compression spring 16 drives the clamping block 15 to reset upward, that is, it will be stuck on the outside of the fixed block 17, thereby limiting the installation of the top ring plate 3;

[0027] After the installation is completed, the bottom ring plate 5 can be used to block the top of the detection device to prevent it from jumping out. When the air pressure is too high, the detection device will slide upward along the inner wall of the tube body 1, so that the pressure relief hole 6 is located below the detection device. At this time, the air pressure will push the plug 10 to slide along the inner wall of the pressure relief hole 6 until the plug 10 is pushed out, and then the pressure will be relieved outward. After that, the elastic force of the tension spring 11 will pull the plug 10 back to its original position and block it inside the pressure relief hole 6, thereby preventing continuous gas leakage.

[0028] To sum up, the anti-jump device used in the oil pipe air tightness detection can prevent it from jumping out by blocking the top of the detection device with the bottom ring plate 5. When the air pressure is too high, the pressure relief hole 6 will be exposed, and the air pressure will push the plug 10 to slide along the inner wall of the pressure relief hole 6 until the plug 10 is pushed out, and then the pressure will be released outward, thereby avoiding accidents caused by excessive air pressure and reducing safety hazards.

[0029] By placing the top ring plate 3 flat on the top edge of the tube body 1, and then flipping the clamping rod 13 downward, so that the clamping rod 13 is buckled on the top ring plate 3 and the outside of the edge, the clamping block 15 will contact the fixed block 17 at this time, so it will be pressed and slide into the slide groove 14, and then the compression spring 16 will drive the clamping block 15 to reset upward, that is, it will be stuck on the outside of the fixed block 17, thereby limiting the installation of the top ring plate 3, which is convenient and quick.

[0030] In the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can all be customized according to the description and the drawings.

[0032] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. An anti-jump device for detecting the gas seal of an oil pipe, comprising a pipe body (1), characterized in that: The top of the tube body (1) is spirally screwed with a coupling part (2), the top outer side of the coupling part (2) has an edge, the top of the edge is installed with a top ring plate (3), the bottom center of the top ring plate (3) is fixedly installed with a spring (4), the bottom of the spring (4) is fixedly installed with a bottom ring plate (5), and the bottom ring plate (5) is slidably connected to the inside of the tube body (1), the bottom outer side of the coupling part (2) is provided with a pressure relief hole (6), and the pressure relief hole (6) is opened through the tube body (1), the inside of the pressure relief hole (6) is provided with a pressure relief valve (7), and the outside of the top ring plate (3) is provided with a positioning installation component (8) for positioning.

2. The anti-jump device for oil pipe airtightness detection according to claim 1, characterized in that: The pressure relief valve (7) comprises a fixing ring (9) fixedly mounted on the inner wall of the pressure relief hole (6) and a plug (10) slidably connected to the inside of the pressure relief hole (6), and a tension spring (11) is fixedly mounted between the fixing ring (9) and the plug (10).

3. The anti-jump device for oil pipe airtightness detection according to claim 2, characterized in that: The plug (10) is made of rubber, and the plug (10) tightly abuts against the inner wall of the pressure relief hole (6).

4. The anti-jump device for oil pipe airtightness detection according to claim 2, characterized in that: The pressure relief holes (6) are arranged in four groups in an array on the outside of the coupling portion (2), and the plugs (10) are arranged in four groups corresponding to the pressure relief holes (6).

5. The anti-jump device for oil pipe airtightness detection according to claim 1, characterized in that: The positioning and mounting assembly (8) includes a support (12) fixedly mounted on the top side of the top ring plate (3), the top of the support (12) is rotatably connected to a clamping rod (13), the bottom of the clamping rod (13) is provided with a slide groove (14), the interior of the slide groove (14) is slidably connected to a clamping block (15), a compression spring (16) is fixedly mounted between the clamping block (15) and the bottom wall of the slide groove (14), a fixed block (17) is fixedly mounted on the bottom side of the edge of the coupling portion (2) corresponding to the clamping block (15), and the clamping block (15) and the fixed block (17) are clamped.

6. The anti-jump device for oil pipe airtightness detection according to claim 5, characterized in that: Four groups of supports (12) are installed in an array around the top ring plate (3).

7. The anti-jump device for oil pipe airtightness detection according to claim 5, characterized in that: The two sides where the clamping block (15) and the fixing block (17) contact each other are inclined surfaces with an inclination angle of 45°.

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