Pipe end protective cap

Abstract

The utility model provides a pipe end protective cap. The pipe end protective cap comprises a pipe sleeve and a plugging column, the pipe sleeve comprises a connecting part and a sleeving part, the sleeving part is connected with the plugging column through the connecting part, the sleeving part and the plugging column are arranged at an interval outside the plugging column, an annular gap is formed between the sleeving part and the plugging column, and the inner diameter of the pipe sleeve is configured to be matched with the outer diameter of a pipeline. Compared with an existing protective cap only capable of being matched with one pipe end inner diameter size, the pipe end protective cap has the advantages that the outer diameter of the pipeline serves as the standard, the inner diameter of the pipe sleeve is constructed to be matched with the outer diameter of the pipeline, and therefore the pipe end protective cap can be matched with pipelines with different inner diameters under the same specification, and the pipe end protective cap is convenient to use. The condition that the protective caps with corresponding sizes are frequently replaced due to the change of the inner diameter of the pipeline is reduced, so that the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fitting protection, and particularly relates to a pipe end protection cap. Background Art

[0002] A pipe end protection cap is a device used to protect the pipe orifice. It is usually installed at the end of the pipe to prevent the pipe end from being damaged during the use and handling of the pipe.

[0003] Currently, a cylindrical protection cap that matches the inner diameter size of the pipe end is usually directly inserted into the pipe to protect the pipe end. However, this kind of protection cap can only be adapted to one inner diameter size of the pipe end. If the pipe with a different inner diameter under the same specification is replaced, it is necessary to re - produce or purchase a protection cap adapted to the new inner diameter, which increases the economic cost. Therefore, the existing pipe end protection cap has the problem of a small adaptability range for the pipe inner diameter. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a pipe end protection cap, which can be adapted to pipes with different pipe inner diameters under the same specification, reduce the situation of frequently replacing the corresponding - sized protection caps due to the change of the pipe inner diameter, and thus reduce the production cost.

[0005] To achieve the above purpose, according to one aspect of the utility model, a pipe end protection cap is provided, which includes a pipe sleeve and a plugging column. The pipe sleeve includes a connecting part and a sleeving part. The sleeving part is connected to the plugging column through the connecting part. The sleeving part is arranged at an interval outside the plugging column, and an annular gap is formed between the sleeving part and the plugging column. The inner diameter of the pipe sleeve is configured to be adapted to the outer diameter of the pipe.

[0006] Furthermore, the inner hole of the sleeving part gradually expands outward along the direction away from the connecting part.

[0007] Furthermore, the wall thickness of the sleeving part gradually becomes thinner along the direction away from the connecting part.

[0008] Furthermore, the width of the annular gap is between 20 - 40 mm; or, the width of the annular gap is between 40 - 45 mm.

[0009] Furthermore, a stop surface is formed at the position where the connecting part is connected to the sleeving part.

[0010] Furthermore, the inner wall of the sleeving part is stepped.

[0011] Furthermore, the sleeving part is longer than the plugging column along the direction away from the connecting part.

[0012] Furthermore, the plugging column is of a cylindrical structure, one end of the plugging column inserted into the pipe is blocked, and the other end is open.

[0013] Further, through holes are provided in the plugging column; the through holes are strip-shaped, circular or rectangular.

[0014] Further, the pipe end protection cap further includes an anti-slip structure, and the anti-slip structure is arranged on the inner wall surface of the pipe sleeve; the anti-slip structure includes a flexible anti-slip layer, a flexible anti-slip thread or a flexible anti-slip barb.

[0015] Applying the technical solution of the present utility model, the pipe end protection cap includes a pipe sleeve and a plugging column. The pipe sleeve is sleeved on the end of the pipeline, so that the pipe end protection cap is fixed on the end of the pipeline. The plugging column is inserted into the end of the pipeline to plug and protect the inside of the pipeline. The pipe sleeve includes a connecting portion and a sleeving portion. The connecting portion is used to connect the sleeving portion and the plugging column. The sleeving portion abuts against the outer wall of the pipeline to realize the fixation of the pipe end protection cap. The sleeving portion and the plugging column are arranged at intervals to form an annular gap. The inner diameter of the pipe sleeve is based on the outer diameter of the pipeline and is configured to be adapted to the outer diameter of the pipeline. At the same time, the annular gap can accommodate pipelines with different wall thicknesses, so that the pipe end protection cap can be adapted to pipelines with different inner diameters under the same specification, reducing the situation of frequently replacing the pipe end protection cap with corresponding sizes due to the change of the inner diameter of the pipeline, thereby reducing the production cost. Description of the Drawings

[0016] The specification drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the attached

[0017] In the figure:

[0018] Figure 1 The overall structural schematic diagram of the pipe end protection cap of the embodiment of the present utility model is shown.

[0019] Among them, the above-mentioned drawings include the following reference numerals:

[0020] 1. Pipe sleeve; 11. Connecting portion; 12. Sleeving portion; 2. Plugging column; 3. Annular gap; 4. Through hole; 5. Pipeline; 6. Stopping surface. Detailed Embodiment

[0021] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0022] In the prior art, the protective cap usually takes the inner diameter size of the pipe end as the benchmark, and a cylindrical protective cap matching the inner diameter size is directly inserted into the pipe to protect the pipe end. This kind of protective cap can only adapt to one kind of pipe end inner diameter size. For pipes, generally, for the same specification of pipes, the outer diameter is the same, while the inner diameter can have multiple different types. If the inner diameter is used as the design benchmark for the protective cap, for pipes of the same specification, multiple different types of protective caps need to be designed to adapt to pipes with different inner diameters, resulting in a relatively large demand for the types of protective caps and a high cost, making the adaptability of the protective caps poor.

[0023] To solve the above problems, the present utility model proposes a pipe end protective cap, which takes the outer diameter of the pipe as the design benchmark for the pipe end protective cap, and at the same time sets an annular gap capable of accommodating pipes with different wall thicknesses, so that one type of pipe end protective cap can adapt to pipes with different inner diameters under the same specification, reducing the situation of frequently replacing the corresponding size of pipe end protective caps due to the change of the inner diameter of the pipe, thereby reducing the production cost.

[0024] As Figure 1 shown, according to an embodiment of the present utility model, the pipe end protective cap includes a pipe sleeve 1 and a plugging column 2. The pipe sleeve 1 includes a connecting portion 11 and a sleeving portion 12. The sleeving portion 12 is connected to the plugging column 2 through the connecting portion 11. The sleeving portion 12 is spaced apart from the plugging column 2 outside the plugging column 2, and an annular gap 3 is formed between the sleeving portion 12 and the plugging column 2. The inner diameter of the pipe sleeve 1 is configured to be adapted to the outer diameter of the pipe 5.

[0025] In the above technical solution, the pipe end protective cap includes a pipe sleeve 1 and a plugging column 2. The pipe sleeve 1 is sleeved on the pipe end to fix the pipe end protective cap on the pipe end. The plugging column 2 is inserted into the pipe end to block and protect the inside of the pipe. The pipe sleeve 1 includes a connecting portion 11 and a sleeving portion 12. The connecting portion 11 is used to connect the sleeving portion 12 and the plugging column 2. The sleeving portion 12 abuts against the outer wall of the pipe to realize the fixation of the pipe end protective cap. The sleeving portion 12 and the plugging column 2 are spaced apart to form an annular gap 3. The inner diameter of the pipe sleeve 1 is configured based on the outer diameter of the pipe 5 and is adapted to the outer diameter of the pipe 5. At the same time, the annular gap 3 can accommodate pipes with different wall thicknesses, so that the pipe end protective cap can adapt to pipes with different inner diameters under the same specification, reducing the situation of frequently replacing the corresponding size of the protective cap due to the change of the inner diameter of the pipe, thereby reducing the production cost.

[0026] In one embodiment, the inner hole of the sleeving portion 12 gradually expands outward along the direction away from the connecting portion 11.

[0027] In the above technical solution, the inner hole of the sleeving portion 12 gradually expands outward along the direction away from the connecting portion 11, increasing the range for the pipe 5 to enter the annular gap 3, enabling the sleeving portion 12 to play a role in guiding the pipe end into the annular gap 3, and facilitating the installation of the protective cap on the pipe.

[0028] In one embodiment, the wall thickness of the socket part 12 gradually becomes thinner along the direction away from the connecting part 11.

[0029] In the above technical solution, by changing the wall thickness of the socket part 12, the width of the annular gap 3 increases as the wall thickness of the socket part 12 becomes thinner, increasing the range for the pipe 5 to enter the annular gap 3. The socket part 12 plays a role in guiding the pipe end into the annular gap 3, realizing the convenient and quick installation of the pipe end protection cap. In addition, since the thickness of the socket part 12 of the pipe end protection cap gradually becomes thinner along the direction away from the connecting part 11, the change in the thickness of the socket part 12 is consistent with the change in the inner hole diameter, so that the outer wall of the socket part 12 can be cylindrical, facilitating the design and processing of the pipe end protection cap.

[0030] In one embodiment, the width of the annular gap 3 is between 20 and 25 mm; or, the width of the annular gap 3 is between 40 and 45 mm.

[0031] In the above technical solution, when the width of the annular gap 3 is between 20 and 25 mm, the pipe end protection cap can be adapted to pipes with a wall thickness between 4 and 20 mm under the same specification; or, when the width of the annular gap 3 is between 40 and 45 mm, the pipe end protection cap can be adapted to pipes with a wall thickness between 20 and 40 mm under the same specification.

[0032] In one embodiment, the connecting part 11 forms a stop surface 6 at the position where it is connected to the socket part 12.

[0033] In the above technical solution, the connecting part 11 bends inward at the position where it is connected to the socket part 12, forming a stop surface 6 inside the pipe sleeve 1. When the pipe 5 is clamped and contacts the inner bent part of the socket part 12 and the stop surface 6, on the one hand, the guide angle inside the bent part of the connecting part 11 and the socket part 12 can be adapted to the fold angle at the connection between the outer wall and the end face of the pipe 5, preventing damage to the pipe end due to the force on the fold angle caused by the clamping and fixing of the pipe end protection cap and the pipe end, realizing the protection of the fold angle at the connection between the outer wall and the end face of the pipe 5. On the other hand, the stop surface 6 contacts the end face of the pipe 5, limiting and fixing the pipe clamped at the inner bent part of the socket part 12, further enhancing the clamping and fixing effect between the pipe end protection cap and the pipe end.

[0034] In one embodiment, the inner wall of the socket part 12 is stepped.

[0035] In the above technical solution, multiple positions on the socket part 12 are bent inward, so that a stepped inner wall is formed on the inner side of the socket part 12. The inner diameter of the inner wall of the socket part 12 at each step is adapted to the outer diameter of a pipe 5 of a certain specification. As the inner hole of the socket part 12 expands in a stepped manner, the number of pipe 5 specifications that can be adapted also increases. At the same time, the stepped socket part 12 enables pipes 5 of different specifications to be clamped at the corresponding bent parts, achieving the effect of protecting the fold angles of pipes 5 of different specifications.

[0036] In one embodiment, the socket part 12 is longer than the plug column 2 in the direction away from the connection part 11.

[0037] In the above technical solution, the socket part 12 is longer than the plug column 2 in the direction away from the connection part 11. When installing the pipe end protection cap, the pipe end of the pipe 5 can first contact the socket part 12, and the pipe end is guided into the annular gap 3 through the socket part 12, achieving the effect of convenient clamping and fixing.

[0038] In one embodiment, the plug column 2 is of a cylindrical structure. One end of the plug column 2 is plugged into the pipe 5 for sealing, and the other end is open.

[0039] In the above technical solution, the plug column 2 mainly seals and protects the inside of the pipe. By setting the plug column 2 as a cylindrical structure with one end sealed and the other end open, the material consumption can be significantly reduced, thus achieving the effect of cost reduction.

[0040] In one embodiment, through holes 4 are provided on the plug column 2; the through holes 4 are strip-shaped, circular or rectangular.

[0041] In the above technical solution, when the pipe 5 is closed by the pipe end protection cap, the space inside the pipe 5 is a closed space, and the temperature change rate of the air inside is slower than that of the outside air. When the external temperature difference changes greatly, there will be a large difference between the external air temperature and the air temperature inside the pipe 5, causing condensed water to be generated on the inner wall of the pipe 5 due to the cold and heat exchange between the external air and the air inside the pipe. Since the pipe 5 is closed, the condensed water is difficult to flow out of the pipe 5. Therefore, the condensed water is likely to accumulate inside the pipe 5, causing rust and corrosion inside the pipe 5. By providing through holes 4 of different shapes such as strip-shaped, circular or rectangular on the plug column 2, it can play a role in ventilation, making the temperature changes inside and outside the pipe 5 consistent, reducing the temperature difference between the inside and outside of the pipe 5, thereby reducing the generation of condensed water inside the pipe 5. Moreover, even if a small amount of condensed water is generated inside the pipe 5, the flowing air can be used to promote the evaporation of the condensed water inside the pipe 5, reducing the accumulation of condensed water inside the pipe 5. At the same time, when disassembling the pipe end protection cap, it is easier to exert force by gripping the through holes 4, so as to pull out the pipe end protection cap from the pipe end, thus improving the convenience of disassembling the pipe end protection cap.

[0042] In one embodiment, the pipe end protection cap is made of a flexible material, and the flexible material includes rubber, plastic, etc.

[0043] In the above technical solution, the pipe end protection cap made of a flexible material can undergo elastic deformation when being snap-fitted and fixed to the pipeline 5, making the snap fit more firm, thereby further improving the reliability of the snap fit between the pipe end protection cap and the pipeline 5; when the pipe end protection cap is made of rubber, it can also increase the friction on the surface of the pipe end protection cap to prevent the pipeline 5 from slipping off after being snap-fitted and fixed to the pipe end protection cap.

[0044] In one embodiment, the pipe end protection cap further includes an anti-slip structure, and the anti-slip structure is arranged on the inner wall surface of the pipe sleeve 1; the anti-slip structure includes a flexible anti-slip layer or flexible anti-slip threads or flexible anti-slip barbs.

[0045] In the above technical solution, by arranging the anti-slip structure on the inner wall surface of the pipe sleeve 1, the friction between the inner wall of the pipe sleeve 1 and the outer wall of the pipeline 5 can be further enhanced, thereby further improving the reliability of the snap fit between the pipe end protection cap and the pipeline 5; specifically, structures such as a flexible anti-slip layer or flexible anti-slip threads or flexible anti-slip barbs can be used as the anti-slip structure.

[0046] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: The pipe end protection cap includes a pipe sleeve 1 and a plugging column 2. The pipe sleeve 1 is sleeved on the end of the pipeline, fixing the pipe end protection cap on the end of the pipeline. The plugging column 2 is inserted into the end of the pipeline to plug and protect the inside of the pipeline. The pipe sleeve 1 includes a connecting portion 11 and a sleeving portion 12. The connecting portion 11 is used to connect the sleeving portion 12 and the plugging column 2. The sleeving portion 12 abuts against the outer wall of the pipeline to realize the fixation of the pipe end protection cap. The sleeving portion 12 and the plugging column 2 are arranged at intervals to form an annular gap 3. The inner diameter of the pipe sleeve 1 is configured to be adapted to the outer diameter of the pipeline 5 based on the outer diameter of the pipeline 5. At the same time, the annular gap 3 can accommodate pipelines with different wall thicknesses, so that the pipe end protection cap can be adapted to pipelines 5 with different inner diameters under the same specification, reducing the situation of frequently replacing the corresponding-sized protection caps due to the change of the inner diameter of the pipeline 5, thereby reducing production costs.

[0047] Obviously, the above-described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A pipe end protective cap, characterized in that: The invention comprises a pipe sleeve (1) and a blocking column (2), wherein the pipe sleeve (1) comprises a connecting portion (11) and a sleeve connecting portion (12), wherein the sleeve connecting portion (12) is connected to the blocking column (2) via the connecting portion (11), wherein the sleeve connecting portion (12) is arranged outside the blocking column (2) at a distance from the blocking column (2), and an annular gap (3) is formed between the sleeve connecting portion (12) and the blocking column (2), and the inner diameter of the pipe sleeve (1) is configured to match the outer diameter of a pipeline (5).

2. The pipe end protection cap according to claim 1, characterized in that: The inner hole of the sleeve portion (12) gradually expands outwards in a direction away from the connecting portion (11).

3. The pipe end protection cap according to claim 2, characterized in that: The sleeve portion (12) has a wall thickness that gradually becomes thinner in a direction away from the connection portion (11).

4. The pipe end protection cap according to claim 2, characterized in that: The width of the annular gap (3) is between 20 and 40 mm; or the width of the annular gap (3) is between 40 and 45 mm.

5. The pipe end protection cap according to claim 1, characterized in that: The connecting portion (11) forms a stop surface (6) at a position where it is connected to the sleeve portion (12).

6. The pipe end protection cap according to claim 5, characterized in that: The inner wall of the sleeve portion (12) is stepped.

7. The pipe end protection cap according to claim 1, characterized in that: The sleeve portion (12) is longer than the blocking column (2) in a direction away from the connecting portion (11).

8. The pipe end protection cap according to claim 1, characterized in that: The blocking column (2) is a cylindrical structure. The blocking column (2) is inserted into one end of the pipeline (5) to block it, while the other end is open.

9. The pipe end protection cap according to any one of claims 1 to 8, characterized in that: The blocking column (2) is provided with a through hole (4); the through hole (4) is in the shape of a strip, a circle or a rectangle.

10. The pipe end protection cap according to any one of claims 1 to 8, characterized in that: The pipe end protection cap also includes an anti-skid structure, which is arranged on the inner wall surface of the pipe sleeve (1); the anti-skid structure includes a flexible anti-skid layer or a flexible anti-skid thread or a flexible anti-skid barb.

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