Pipeline sealing plug

Abstract

The utility model discloses a pipeline sealing plug, including a sealing component, which is threaded on the pipeline, and the sealing component includes a plug and a sealing sleeve. The upper outer portion of the plug is provided with a thread, and the sealing sleeve is elastically sleeved on the lower outer portion of the plug; an anti-leakage component is provided on the upper portion of the plug, and an anti-loosening column is provided on the bottom of the anti-leakage component, the anti-loosening column is located on the inner side of the plug, and the lower part of the anti-loosening column passes through the wall part of the plug and is located on the inner side of the sealing sleeve, the anti-loosening column can tighten the inner side of the sealing sleeve according to the degree of shrinkage of the sealing sleeve at different temperatures, an adjusting handle is fixed on the top of the anti-leakage component, and the adjusting handle is used to elastically lock the anti-leakage component, and when the sealing sleeve shrinks, the anti-loosening column moves downward to always support the sealing sleeve, thereby ensuring the sealing performance of the plug to the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline sealing, in particular to a pipeline sealing plug. Background Art

[0002] In the fields of industry, transportation, etc., it is often necessary to seal the opening of the pipeline with a plug. For example, the Chinese patent with publication number CN219775152U discloses a pipeline plug, which is provided with a concave block and a support block to limit the position of the plug when the pressure in the pipe squeezes the plug outward, and a rubber sealing ring is provided on the outside of the plug to improve the sealing of the plug to the pipeline. However, when the outside temperature is low, the cold shrinkage of the rubber sealing ring will reduce the fit between it and the pipe wall, thereby affecting the sealing effect. Especially in winter or low temperature environment, the cold shrinkage of the sealing gasket is more obvious, and in severe cases, it may even cause the plugging to fail.

[0003] Therefore, it is necessary to provide a pipeline sealing plug to solve the problems mentioned in the above background technology. Utility Model Content

[0004] To achieve the above object, the utility model provides the following technical solution: a pipeline sealing plug, comprising: a plugging assembly, the plugging assembly is threaded on the pipeline, the plugging assembly comprises a plug and a sealing sleeve, the upper outer portion of the plug is provided with a thread, and the sealing sleeve is elastically sleeved on the lower outer portion of the plug;

[0005] An anti-leakage component is provided at the upper part of the plug, and an anti-loosening column is provided at the bottom of the anti-leakage component. The anti-loosening column is located on the inner side of the plug, and the lower part of the anti-loosening column passes through the wall part of the plug and is located on the inner side of the sealing sleeve. The anti-loosening column can tighten the inner side of the sealing sleeve according to the degree of shrinkage of the sealing sleeve at different temperatures. An adjustment handle is fixed on the top of the anti-leakage component, and the adjustment handle is used to lock the anti-leakage component.

[0006] As a preferred technical solution of the utility model, the plug is a hollow tubular structure, an annular groove is provided on the outer side of the lower part of the plug, a plurality of guide straight grooves are provided along the circumference of the inner wall of the lower part of the plug, and an end cover is welded to the lower end of the plug.

[0007] As a preferred technical solution of the utility model, the anti-leakage component includes:

[0008] A telescopic rod and an anti-loosening ring plate, wherein the telescopic rod is coaxially fixed on the upper end of the anti-loosening column, a circular plate is rotatably arranged on the upper end of the telescopic rod and cannot be axially moved, a plurality of limit columns are evenly distributed radially on the circumference of the circular plate, a supporting spring is elastically arranged between the circular plate and the anti-loosening column, the supporting spring is sleeved on the telescopic rod, and the anti-loosening ring plate is fixed on the upper end of the plug.

[0009] As a preferred technical solution of the utility model, the straight guide groove is connected to the bottom surface of the annular groove, and the bottom surface of the straight guide groove protrudes from the bottom surface of the annular groove.

[0010] As a preferred technical solution of the utility model, a countersunk hole is coaxially opened on the upper end of the anti-loosening ring plate, a plurality of inverted T-slots are opened on the side wall of the countersunk hole, the T-slots are arranged corresponding to the limit columns, and a jaw is opened on the outer peripheral side of the anti-loosening ring plate.

[0011] As a preferred technical solution of the utility model, a plurality of protrusions are evenly distributed around the anti-loosening column, and the protrusions are slidably matched with the guide straight grooves. The outer side surface of each protrusion is provided with a plurality of step surfaces, and the step surfaces gradually protrude from bottom to top, and adjacent step surfaces have circular arc transitions.

[0012] As a preferred technical solution of the utility model, a flexible sealing pad is bonded to the bottom of the anti-loosening ring plate.

[0013] Compared with the prior art, the utility model provides a pipeline sealing plug, which has the following beneficial effects:

[0014] In the utility model, the anti-leakage component can always provide elastic support to the inner side of the sealing sleeve, thereby preventing the sealing sleeve from shrinking in a low-temperature environment and reducing the fit between the sealing sleeve and the pipe wall, resulting in sealing failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a pipeline sealing plug;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of a pipeline sealing plug;

[0017] Figure 3 It is a schematic diagram of the structure of a pipeline sealing plug ring groove and a guide straight groove;

[0018] Figure 4 This is a schematic diagram of the structure of a pipeline sealing plug anti-loosening ring plate;

[0019] In the figure: 1. pipeline; 2. sealing component; 21. plug; 22. sealing sleeve; 23. end cover; 211. ring groove; 212. guide straight groove; 3. anti-leakage component; 31. telescopic rod; 32. anti-loosening column; 33. round plate; 34. anti-loosening ring plate; 35. support spring; 36. limit column; 37. T-slot; 38. jaws; 321. bump; 4. adjustment handle. DETAILED DESCRIPTION

[0020] See also Figure 1-4The utility model provides a pipeline sealing plug, comprising:

[0021] A plugging component 2, wherein the plugging component 2 is screwed onto the pipeline 1;

[0022] The plugging assembly 2 includes a plug 21 and a sealing sleeve 22. The upper outer portion of the plug 21 is provided with a thread, and the sealing sleeve 22 is elastically sleeved on the lower outer portion of the plug 21.

[0023] An anti-leakage component 3 is provided on the upper part of the plug 21, and an anti-loosening column 32 is provided on the bottom of the anti-leakage component 3. The anti-loosening column 32 is located on the inner side of the plug 21, and the lower part of the anti-loosening column 32 passes through the wall part of the plug 21 and is located on the inner side of the sealing sleeve 22. The anti-loosening column 32 can tighten the inner side of the sealing sleeve 22 according to the degree of shrinkage of the sealing sleeve 22 at different temperatures. An adjustment handle 4 is fixedly provided on the top of the anti-leakage component 3, and the adjustment handle 4 is used to adjust the anti-leakage component 3.

[0024] When in use, first put the sealing sleeve 22 on the plug 21, then screw the plug 21 on the pipe 1, and then control the anti-leakage component 3 to be elastically locked by adjusting the handle 4. When the external ambient temperature is low, the sealing sleeve 22 is affected and shrinks, and the sealing between the sealing sleeve 22 and the inner wall of the pipe 1 is reduced. At this time, the anti-loosening column 32 elastically moves downward to continuously support the sealing sleeve 22, thereby ensuring the sealing effect of the plug 21 on the pipe 1.

[0025] In this embodiment, the plug 21 is a hollow tubular structure, an annular groove 211 is provided on the outer side of the lower part of the plug 21, a plurality of guide straight grooves 212 are provided along the inner wall circumference of the lower part of the plug 21, and an end cover 23 is welded to the lower end of the plug 21.

[0026] The sealing sleeve 22 is axially limited by the annular groove 211 .

[0027] In this embodiment, the anti-leakage component 3 includes:

[0028] The telescopic rod 31 and the anti-loosening ring plate 34, the telescopic rod 31 is coaxially fixed on the upper end of the anti-loosening column 32, the upper end of the telescopic rod 31 is rotatable and cannot be axially moved with a circular plate 33, and the circumference of the circular plate 33 is evenly distributed with a plurality of limit columns 36 along the radial direction, and a support spring 35 is elastically arranged between the circular plate 33 and the anti-loosening column 32, and the support spring 35 is sleeved on the telescopic rod 31, and the anti-loosening ring plate 34 is fixed on the upper end of the plug 21.

[0029] In this embodiment, the straight guiding groove 212 is connected to the bottom surface of the annular groove 211 , and the bottom surface of the straight guiding groove 212 protrudes from the bottom surface of the annular groove 211 .

[0030] It needs to be explained that the anti-loosening column 32 is initially located above the sealing sleeve 22. When the plug 21 is screwed onto the pipe 1, the sealing sleeve 22 is squeezed by the pipe wall to seal the pipe 1. At the same time, the sealing sleeve 22 is squeezed so that its inner side surface protrudes from the bottom surface of the guide straight groove 212, which can elastically support the anti-loosening column 32. When the operator presses down the adjusting handle 4 to elastically lock the anti-leakage component 3, at this time, the support spring 35 is compressed due to the obstruction of the downward movement of the anti-loosening column 32, and then the anti-leakage component 3 is elastically locked through the limit column 36 and the anti-loosening ring plate 34. The sealing sleeve 22 is continuously pushed by the elastic force of the support spring 35 to prevent the sealing sleeve 22 from shrinking due to the low external temperature and reducing the sealing performance of the plug 21.

[0031] In this embodiment, a countersunk hole is coaxially opened at the upper end of the anti-loosening ring plate 34 , and a plurality of inverted T-shaped slots 37 are opened on the side wall of the countersunk hole. The T-shaped slots 37 are arranged corresponding to the limiting columns 36 , and a jaw 38 is opened on the outer peripheral side of the anti-loosening ring plate 34 .

[0032] Specifically, when the anti-leakage component 3 is elastically locked, the position of the limit column 36 is adjusted by rotating the circular plate 33 so that it enters the groove along the main trunk of the T-slot 37 and moves to any support rod to complete the elastic locking of the anti-leakage component 3. The setting of the jaws 38 facilitates the disassembly and assembly of the plug.

[0033] In this embodiment, a plurality of protrusions 321 are evenly distributed around the anti-loosening column 32, and the protrusions 321 are slidably matched with the guide straight grooves 212. The outer side surface of each protrusion 321 is provided with a plurality of step surfaces, and the step surfaces gradually protrude from bottom to top, and adjacent step surfaces transition in circular arcs.

[0034] That is to say, when the sealing sleeve 22 shrinks, as the anti-loosening column 32 moves downward, the diameter of the supporting step of the sealing sleeve 22 gradually increases, which can adapt to shrinkage scenarios under different temperatures.

[0035] In this embodiment, a flexible sealing pad is bonded to the bottom of the anti-loosening ring plate 34. The sealing sleeve 22 and the flexible sealing pad are used to perform secondary sealing on the pipeline 1, thereby increasing the sealing effect of the plug 21 on the pipeline 1.

[0036] During specific implementation, the sealing sleeve is put on the plug, and then the plug is screwed on the pipe, and then the anti-leakage component is elastically locked by adjusting the handle. When the external ambient temperature is low, the sealing sleeve is affected and shrinks, and the sealing between the sealing sleeve and the inner wall of the pipe is reduced. At this time, the anti-loosening column adaptively moves downward under the elastic force of the supporting spring to continuously support the sealing sleeve, thereby ensuring the sealing effect of the plug on the pipe.

[0037] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipeline sealing plug, characterized in that: The plugging assembly (2) is threadedly connected to the pipeline (1), the plugging assembly (2) comprises a plug (21) and a sealing sleeve (22), the upper outer portion of the plug (21) is provided with a thread, and the sealing sleeve (22) is elastically sleeved on the lower outer portion of the plug (21); An anti-leakage component (3) is arranged on the upper part of the plug (21), and an anti-loosening column (32) is arranged on the bottom of the anti-leakage component (3). The anti-loosening column (32) is located on the inner side of the plug (21), and the lower part of the anti-loosening column (32) passes through the wall of the plug (21) and is located on the inner side of the sealing sleeve (22). The anti-loosening column (32) can tighten the inner side of the sealing sleeve (22) according to the degree of shrinkage of the sealing sleeve (22) at different temperatures. An adjustment handle (4) is fixedly arranged on the top of the anti-leakage component (3), and the adjustment handle (4) is used to lock the anti-leakage component (3).

2. The pipeline sealing plug according to claim 1, characterized in that: The plug (21) is a hollow tubular structure, an annular groove (211) is provided on the outer side of the lower part of the plug (21), a plurality of straight guide grooves (212) are provided along the circumference of the inner wall of the lower part of the plug (21), and an end cover (23) is welded to the lower end of the plug (21).

3. The pipeline sealing plug according to claim 2, characterized in that: The anti-leakage component (3) comprises: A telescopic rod (31) and an anti-loosening ring plate (34), wherein the telescopic rod (31) is coaxially fixed to the upper end of the anti-loosening column (32), a circular plate (33) is rotatably arranged at the upper end of the telescopic rod (31) but cannot be axially moved, a plurality of limit columns (36) are evenly distributed radially on the circumference of the circular plate (33), a support spring (35) is elastically arranged between the circular plate (33) and the anti-loosening column (32), the support spring (35) is sleeved on the telescopic rod (31), and the anti-loosening ring plate (34) is fixed to the upper end of the plug (21).

4. The pipeline sealing plug according to claim 2, characterized in that: The straight guide groove (212) is connected to the groove bottom surface of the annular groove (211), and the groove bottom surface of the straight guide groove (212) protrudes from the groove bottom surface of the annular groove (211).

5. The pipeline sealing plug according to claim 3, characterized in that: A countersunk hole is coaxially formed at the upper end of the anti-loosening ring plate (34), a plurality of inverted T-shaped slots (37) are formed on the side wall of the countersunk hole, the T-shaped slots (37) are arranged corresponding to the limiting columns (36), and a jaw (38) is formed on the outer peripheral side of the anti-loosening ring plate (34).

6. The pipeline sealing plug according to claim 4, characterized in that: A plurality of protrusions (321) are evenly distributed around the anti-loosening column (32), and the protrusions (321) are slidably matched with the guide straight grooves (212). The outer side surface of each protrusion (321) is provided with a plurality of step surfaces, and the step surfaces gradually protrude from bottom to top, and adjacent step surfaces transition in an arc.

7. The pipeline sealing plug according to claim 5, characterized in that: A flexible sealing pad is bonded to the bottom of the anti-loosening ring plate (34).

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