Pipe cap with high sealing performance

Abstract

The utility model relates to the field of pipe caps, in particular to a pipe cap with high sealing performance. The pipe cap with the high sealing performance comprises a cap cover. The connecting pipe is connected to the bottom of the cap through threads; the sealing piece is arranged on the inner top wall of the cap; wherein the inner top wall of the cap is fixedly connected with a plug, a space formed by the inner side of the cap and the outer side of the plug is a sealing cavity, and the sealing piece is located in the sealing cavity. According to the pipe cap with the high sealing performance, the sealing piece is arranged, the spring in the sealing piece has elasticity and can abut against the top of the connecting pipe all the time in the connecting process of the pipe cap and the connecting pipe, loosening or air leakage of the pipe cap in the connecting process can be effectively prevented, and the connecting stability is improved; according to the utility model, simple and convenient assembly and disassembly can be realized, the maintenance efficiency of the pipeline is improved, the firmness and the sealing performance of connection can be ensured, and leakage and pollution are effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of pipe caps, in particular to a pipe cap with high sealing performance. Background Art

[0002] A pipe cap is a part used to cover the opening of a pipe, usually made of metal or polymer. Its main function is to prevent the liquid or gas inside the pipe from leaking to the outside, and it can also prevent external debris, dust, etc. from entering the inside of the pipe and affecting the normal use of the pipe. The pipe cap is a part widely used in modern industry. It originated from the industrialization period in the late 19th century. With the development of science and technology and the continuous expansion of industrial production, various types of pipes have been widely used. In the pipeline system, pipe caps are one of the protective measures for the opening of the pipe and are of great significance. Existing pipe caps have low sealing effect, loose connection, easy penetration, and the pipe cap and the pipe are prone to loosening during use, affecting the normal operation of the device.

[0003] Therefore, it is necessary to provide a new pipe cap with high sealing performance to solve the above technical problems. Utility Model Content

[0004] In order to overcome the defects of the prior art, a pipe cap with high sealing performance is provided to solve the above problems.

[0005] The utility model provides a pipe cap with high sealing performance, comprising: a cap; a connecting pipe connected to the bottom of the cap by threads, and a sealing member arranged on the inner top wall of the cap; wherein the inner top wall of the cap is fixedly connected with a plug, the space formed by the inner side of the cap and the outer side of the plug is a sealing cavity, and the sealing member is located in the sealing cavity; the top of the connecting pipe abuts against the bottom of the sealing member to improve the sealing performance of the pipe cap.

[0006] Preferably, the seal comprises a sealing ring fixedly connected to the inner top wall of the cap, a plurality of springs are arranged inside the sealing ring, the top of each spring is fixedly connected to the inner top of the sealing ring, and the bottom of each spring is fixedly connected to the inner bottom wall of the sealing ring.

[0007] Preferably, an inner side wall of the cap is provided with an internal thread 1, and an outer top of the connecting pipe is provided with an external thread 1, and the internal thread 1 and the external thread 1 are rotatably connected through threads.

[0008] Preferably, the outer side of the plug is provided with a second external thread, the top of the inner side wall of the connecting pipe is provided with a second internal thread, and the second external thread is rotatably connected to the second internal thread through threads.

[0009] Preferably, the rotation directions of the internal thread 1 and the external thread 1, and the rotation directions of the external thread 2 and the internal thread 2 are the same.

[0010] Preferably, the size of the sealing ring is the same as the size of the connecting pipe.

[0011] Preferably, the outer side of the cap is provided with anti-slip grooves.

[0012] Compared with the related art, the pipe cap with high sealing performance provided by the utility model has the following beneficial effects:

[0013] The utility model provides a sealing member, and the spring in the sealing member has elasticity and can always abut against the top of the connecting pipe during the connection between the pipe cap and the connecting pipe, which can effectively prevent the pipe cap from loosening or leaking during the connection and improve the stability of the connection.

[0014] The utility model can realize simple and convenient assembly and disassembly through the double-layer thread connection, improves the maintenance efficiency of the pipeline, ensures the firmness and sealing of the connection, and effectively prevents leakage and pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of a preferred embodiment of a pipe cap with high sealing performance provided by the utility model;

[0016] Figure 2 for Figure 1 The structural diagram of the explosion shown;

[0017] Figure 3 for Figure 1 The structural schematic diagram of the pipe cap shown;

[0018] Figure 4 for Figure 1 Schematic diagram of the structure of the seal shown.

[0019] Numbers in the figure: 1, cap; 11, internal thread 1; 12, internal thread 2; 13, anti-slip pattern; 2, connecting pipe; 21, external thread 1; 3, plug; 31, external thread 2; 4, sealing ring; 41, spring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0022] See also Figures 1 to 4The embodiment of the utility model provides a pipe cap with high sealing performance, which comprises: a cap 1; a connecting pipe 2 connected to the bottom of the cap 1 by threads, and a sealing member arranged on the inner top wall of the cap 1; wherein a plug 3 is fixedly connected to the inner top wall of the cap 1, a space formed by the inner side of the cap 1 and the outer side of the plug 3 is a sealing cavity, and the sealing member is located in the sealing cavity; the top of the connecting pipe 2 abuts against the bottom of the sealing member to improve the sealing performance of the pipe cap.

[0023] It should be noted that: there is a threaded connecting pipe 2 at the bottom of the cap 1, a sealing member is provided on the inner top wall of the cap 1, and a plug 3 is fixedly connected thereto. The inner wall of the cap 1 and the outer side of the plug 3 form a sealed cavity, and the sealing member is located in the sealed cavity. The top of the connecting pipe 2 abuts against the bottom of the sealing member to improve the sealing of the pipe cap. By having the sealing member located in the sealed cavity, the fluid in the pipeline and the environment outside the pipe cap can be effectively isolated to prevent leakage and contamination. At the same time, since the top of the connecting pipe 2 abuts against the bottom of the sealing member, the risk of leakage and falling off can be reduced, thereby improving the safety of the pipe cap.

[0024] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 The sealing member includes a sealing ring 4 fixedly connected to the inner top wall of the cap 1, and a plurality of springs 41 are arranged inside the sealing ring 4. The top of each spring 41 is fixedly connected to the inner top of the sealing ring 4, and the bottom of each spring 41 is fixedly connected to the inner bottom wall of the sealing ring 4.

[0025] It should be noted that the seal includes a sealing ring 4 and a spring 41. The sealing ring 4 is fixed to the top of the inner part of the cap 1, and a plurality of springs 41 are arranged inside. The top of each spring 41 is fixedly connected to the inner top of the sealing ring 4, and the bottom of each spring 41 is fixedly connected to the inner bottom wall of the sealing ring 4. The effect of this design is that when the pressure in the pipeline changes during the use of the pipeline, the spring 41 of the sealing ring 4 can maintain the stability of the sealing ring 4 and protect the pipeline from leakage and contamination. The use of the spring 41 can also relieve the load of the pipeline and protect the service life of the cap 1. In addition, by using a plurality of springs 41, the stability of the sealing ring 4 can be increased.

[0026] In the embodiments of the present invention, please refer to Figure 1 , Figure 2 and Figure 3 An inner wall of the cap 1 is provided with an internal thread 11, an outer top of the connecting pipe 2 is provided with an external thread 21, the internal thread 11 and the external thread 21 are connected by thread rotation, an outer side of the plug 3 is provided with an external thread 31, an inner top of the connecting pipe 2 is provided with an internal thread 12, the external thread 31 and the internal thread 12 are connected by thread rotation.

[0027] It should be noted that: there is an internal thread 11 on the inner wall of the cap 1, and an external thread 21 on the outer top of the connecting pipe 2, through which the two threads can be rotatably connected. There is also an external thread 31 on the outer side of the plug 3, and an internal thread 12 on the top of the inner wall of the connecting pipe 2, through which the two threads can also be rotatably connected. The design of threaded connection can realize simple and convenient assembly and disassembly, and improve the maintenance efficiency of the pipeline. It can ensure the firmness and sealing of the connection, and effectively prevent leakage and pollution. In addition, the strength and stability of the threaded connection are also very good, which can meet various requirements of the pipeline during operation.

[0028] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 The rotation directions of the internal thread 11 and the external thread 21 as well as the external thread 2 31 and the internal thread 2 12 are the same.

[0029] It should be noted that the rotation directions of the internal thread 11 and the external thread 1 21 as well as the external thread 2 31 and the internal thread 2 12 are the same, and their rotation directions are also consistent, which is beneficial to the rotation and stability during connection.

[0030] In the embodiments of the present invention, please refer to Figure 1 and Figure 4 , the size of the sealing ring 4 is the same as the size of the connecting pipe 2.

[0031] It should be noted that the sealing ring 4 is used to ensure the sealing between the connecting pipe 2 and the cap 1, and its size is the same as the size of the connecting pipe 2. This means that the outer diameter of the sealing ring 4 is equal to the outer diameter of the connecting pipe 2, the inner diameter is equal to the inner diameter of the connecting pipe 2, and the thickness is also the same. This design is conducive to ensuring that the sealing ring 4 can completely cover the interface between the connecting pipe 2 and the cap 1, thereby effectively preventing liquid or gas leakage. If the size of the sealing ring 4 is different from the size of the connecting pipe 2, it may cause a loose connection, resulting in liquid or gas leakage. Therefore, when designing the sealing ring 4, it is necessary to ensure that its size is the same as the size of the connecting pipe 2 to ensure the sealing and stability of the connection. At the same time, the material of the sealing ring 4 needs to have good chemical corrosion resistance and high temperature resistance to adapt to different working environments.

[0032] In the embodiments of the present invention, please refer to Figure 1 The outer side of the cap 1 is provided with anti-slip grooves 13 .

[0033] It should be noted that the anti-slip pattern 13 refers to a number of raised lines on the outer surface of the cap 1, similar to lines. This design can effectively increase the surface roughness of the cap 1 and increase the friction when touched by hand, thereby increasing the anti-slip performance of the cap 1. The design of the anti-slip pattern 13 can also improve the user's operating performance when unscrewing or tightening the cap 1. When in use, the user can hold the cap 1 more easily and adjust the grip appropriately, thereby making it easier to open and close the cap 1.

[0034] The working principle of the pipe cap with high sealing performance provided by the utility model is as follows: the cap 1 is placed on the top of the connecting pipe 2, and the cap 1 is rotated to make the cap 1 and the connecting pipe 2 rotationally connected. At this time, the internal thread 11 and the external thread 21 are rotationally connected by threads, and the external thread 31 and the internal thread 12 are rotationally connected by threads, so that the top of the connecting pipe 2 is against the bottom of the sealing ring 4. Since a spring 41 is provided in the sealing ring 4, the spring 41 will always be in contact with the top of the connecting pipe 2 due to its own elastic force, thereby improving the sealing performance of the pipe cap. After the cap 1 and the connecting pipe 2 are tightened, the plug 3 will extend into the connecting pipe 2 to further seal.

[0035] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pipe cap with high sealing performance, characterized in that: include: Cap (1); A connecting pipe (2) connected to the bottom of the cap (1) by threads, and; A sealing member arranged on the inner top wall of the cap (1); The inner top wall of the cap (1) is fixedly connected to a plug (3), a space formed by the inner side of the cap (1) and the outer side of the plug (3) is a sealed cavity, and the sealing element is located in the sealed cavity; The top of the connecting pipe (2) abuts against the bottom of the sealing member to improve the sealing performance of the pipe cap; The sealing member comprises a sealing ring (4) fixedly connected to the inner top wall of the cap (1); a plurality of springs (41) are arranged inside the sealing ring (4); the top of each spring (41) is fixedly connected to the inner top of the sealing ring (4); and the bottom of each spring (41) is fixedly connected to the inner bottom wall of the sealing ring (4).

2. The pipe cap with high sealing performance according to claim 1, characterized in that: The inner wall of the cap (1) is provided with an internal thread (11), and the outer top of the connecting pipe (2) is provided with an external thread (21), and the internal thread (11) and the external thread (21) are connected to each other by means of a threaded rotation.

3. The pipe cap with high sealing performance according to claim 2, characterized in that: The outer side of the plug (3) is provided with an external thread (31), and the top of the inner side wall of the connecting pipe (2) is provided with an internal thread (12), and the external thread (31) and the internal thread (12) are rotatably connected via threads.

4. The pipe cap with high sealing performance according to claim 3, characterized in that: The rotation directions of the internal thread 1 (11) and the external thread 1 (21) as well as the external thread 2 (31) and the internal thread 2 (12) are the same.

5. The pipe cap with high sealing performance according to claim 4, characterized in that: The size of the sealing ring (4) is the same as the size of the connecting pipe (2).

6. The pipe cap with high sealing performance according to claim 5, characterized in that: The outer side of the cap (1) is provided with anti-slip grooves (13).

Images