A sealing device for a pipe joint

Abstract

The utility model discloses a kind of sealing leak-proof devices of pipeline connecting place, it is related to pipeline connecting technical field.The utility model includes first pipeline and second pipeline, one end of first pipeline and second pipeline is fixedly connected with mounting disc, the surface of first pipeline and second pipeline and located the outside of mounting disc is provided with sealing assembly, the sealing assembly includes first sealing shell, the inner chamber of first sealing shell is movably connected with the surface of first pipeline.The utility model has good sealing protection performance, sealing sleeve is wrapped in the surface of first pipeline and second pipeline, first sealing shell and second sealing shell abut mounting disc, not only can make two mounting discs closely adhere, form reliable sealing structure, but also can play protective effect to sealing component between mounting disc, reduce the influence of external environment to sealing structure, delay its aging speed, to improve the sealing leak-proof effect and service life of pipeline connecting place.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline connection technology, and in particular relates to a sealing and leak-proof device for pipeline connections. Background Technology

[0002] Piping systems are widely used in many fields such as industrial production, municipal engineering, and building water supply and drainage. Sealing and preventing leaks at pipe connections is a crucial aspect of ensuring the normal operation of the piping system. Poor sealing at pipe connections can not only cause media leakage and resource waste, but may also lead to environmental pollution.

[0003] Currently, common pipe connection sealing methods include using sealing rings, flange connections with gaskets, etc. When using sealing rings for pipe connections, the ring is usually placed in the groove of the pipe interface, and the seal is achieved by the compression of the ring during pipe connection. However, over time, the ring will age and lose elasticity due to corrosion from the medium, changes in ambient temperature, and long-term compression deformation, resulting in weakened sealing performance and eventually leakage. In flange connections, the gasket is sandwiched between two flanges, and the gasket is sealed by tightening the flanges with bolts. However, in actual use, pressure fluctuations of the medium in the pipe, thermal expansion and contraction of the pipe, etc., will cause changes in the tightening force of the flange bolts, resulting in uneven stress on the gasket. Over time, the gasket is also prone to local damage or failure, which in turn leads to leakage at the pipe connection.

[0004] To address this issue, we provide a sealing and leak-proof device for pipe connections to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing and leak-proof device for pipe connections. By cooperating with the sealing components and the mounting plate, it solves the problem that in the existing pipe connection sealing methods, such as using sealing rings, flange connections and sealing gaskets, the sealing rings will age and lose elasticity over time due to corrosion from the medium, changes in ambient temperature, and long-term compression deformation, resulting in weakened sealing performance and eventually leakage.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a sealing and leak-proof device for pipe connections, comprising a first pipe and a second pipe. An installation plate is fixedly connected to one end of each pipe. A sealing assembly is provided on the surface of each pipe, outside the installation plate. The sealing assembly includes a first sealing shell, the inner cavity of which is movably connected to the surface of the first pipe. A second sealing shell is provided on one side of the first sealing shell. An installation bracket is fixedly connected to the top of both the first and second sealing shells. An installation bolt is passed through the surface of the installation bracket. Installation plates are fixedly connected to the front and back of both the first and second sealing shells, and fastening bolts are passed through the surface of the installation plates. A sealing sleeve is fixedly connected to the opposite side of both the first and second sealing shells.

[0008] The present invention is further configured such that a sealing groove is provided on the side of the mounting plate away from the first pipe, and a sealing ring is fixedly connected to the side of the mounting plate away from the second pipe. As the mounting plates at one end of the first pipe and the second pipe come into close contact with each other, the sealing ring is inserted into the sealing groove. The sealing structure formed by the sealing ring and the sealing groove can improve the connection sealing between the mounting plates.

[0009] The present invention is further configured such that annular slots are provided at the top and bottom of one side of the mounting plate, and annular plates are fixedly connected to one side of the inner cavity of the first and second sealing shells. The surface of the annular plates is movably connected to the inner cavity of the annular slots. As the first and second sealing shells are installed and fixed on the outside of the mounting plate, the annular plates on one side of the first and second sealing shells are engaged in the annular slots on the surface of the mounting plate. The limiting structure composed of the annular plates and the annular slots can greatly improve the connection strength between the first and second sealing shells and the mounting plate.

[0010] The present invention is further configured such that a sealing ring is fixedly connected to one side of the sealing sleeve, and the surfaces of the first pipe and the second pipe are in close contact with the inner wall of the sealing ring. The sealing sleeve is installed on the surfaces of the first pipe and the second pipe along with the first sealing shell and the second sealing shell, and the sealing ring on the inner wall of the sealing sleeve can further improve the sealing performance between the sealing sleeve and the first pipe and the second pipe.

[0011] The present invention is further configured such that a slot is provided on one side of the first sealing shell, and a plug is fixedly connected to the side of the second sealing shell facing the first sealing shell. The surface of the plug is movably connected to the inner cavity of the slot. As the first sealing shell and the second sealing shell are pressed together, the plug on the second sealing shell is inserted into the slot on the surface of the first sealing shell. The limiting structure composed of the plug and the slot can greatly improve the connection strength between the first sealing shell and the second sealing shell.

[0012] The present invention is further configured such that annular sealing gaskets are fixedly connected to the inner walls of the first sealing shell and the second sealing shell, and the surfaces of the first pipe and the second pipe are in close contact with the annular sealing gaskets. As the first sealing shell and the second sealing shell are installed at the connection between the first pipe and the second pipe, the annular sealing gaskets on the inner walls of the first sealing shell and the second sealing shell press against the surfaces of the first pipe and the second pipe, thereby improving the sealing performance of the connection between the first sealing shell and the second sealing shell and the first pipe and the second pipe.

[0013] The present invention is further configured such that a connecting sleeve is fixedly connected to the surface of the sealing sleeve, one side of the first sealing shell and the second sealing shell are both fixedly connected to the surface of the connecting sleeve, one side of the connecting sleeve is fixedly connected to the sealing sleeve, and the other side is fixedly connected to the surface of the first sealing shell and the second sealing shell, thereby connecting the sealing sleeve with the first sealing shell and the second sealing shell into a whole, thereby improving the sealing and protection strength of the first pipe and the second pipe.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model has good sealing and protection performance. The sealing sleeve wraps around the surface of the first pipe and the second pipe, and the first sealing shell and the second sealing shell abut against the mounting plate. This not only allows the two mounting plates to fit tightly together and form a reliable sealing structure, but also protects the sealing components between the mounting plates, reduces the impact of the external environment on the sealing structure, slows down its aging rate, and thus improves the sealing and leak-proof effect and service life of the pipe connection.

[0016] 2. This utility model achieves multiple reinforcements through mechanical structure. When the mounting plates of the first pipe and the second pipe come into tight contact, the first sealing shell and the second sealing shell achieve initial positioning through the cooperation of the insert and the slot. Then, the mounting bracket and the mounting plate are fixed by using mounting bolts, fastening bolts and nuts. This multi-component coordinated fastening method can effectively resist external vibration and prevent the mounting plate from loosening. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of a sealing and leak-proof device for pipe connections.

[0019] Figure 2 This is a schematic diagram of the sealing component in a sealing and leak-proof device for pipe connections.

[0020] Figure 3 A sealing and leak-proof device for pipe connections. Figure 2 A magnified view of a portion of point A in the middle.

[0021] Figure 4 A sealing and leak-proof device for pipe connections. Figure 2 A magnified view of a portion of point B in the middle.

[0022] Figure 5 This is a cross-sectional schematic diagram of a sealing and leak-proof device for pipe connections.

[0023] Figure 6 This is a schematic diagram of the structure of one side of the mounting plate in a sealing and leak-proof device for pipe connections.

[0024] In the attached diagram: 1. First pipe; 2. Second pipe; 3. Mounting plate; 4. Sealing assembly; 401. First sealing shell; 402. Second sealing shell; 403. Mounting bracket; 404. Mounting bolt; 405. Mounting piece; 406. Fastening bolt; 407. Sealing sleeve; 5. Connecting sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figure 1-6 This utility model is a sealing and leak-proof device for pipe connections, including a first pipe 1 and a second pipe 2. An installation plate 3 is fixedly connected to one end of each pipe. A sealing component 4 is provided on the surface of the first pipe 1 and the second pipe 2, located outside the installation plate 3. The sealing component 4 includes a first sealing shell 401, the inner cavity of which is movably connected to the surface of the first pipe 1. A second sealing shell 402 is provided on one side of the first sealing shell 401. An installation bracket 403 is fixedly connected to the top of both the first and second sealing shells 401 and 402. An installation bolt 404 is passed through the surface of the installation bracket 403. An installation piece 405 is fixedly connected to the front and back of both the first and second sealing shells 401 and 402. A fastening bolt 406 is passed through the surface of the installation piece 405. A sealing sleeve 407 is fixedly connected to the opposite side of both the first and second sealing shells 401 and 402.

[0028] Specifically: Move the first sealing shell 401 and the second sealing shell 402 until they are close to each other. Insert the mounting bolt 404 through the mounting bracket 403 on one side of the first sealing shell 401 and the second sealing shell 402 and tighten it with a nut to fix the first sealing shell 401 and the second sealing shell 402 together. Then, insert the fastening bolt 406 into the mounting holes on the mounting plates 405 on the front and back of the first sealing shell 401 and the second sealing shell 402, and screw the nut on the surface of the fastening bolt 406. Tighten the nut to reinforce the front and back of the first sealing shell 401 and the second sealing shell 402. The enclosed sealing structure formed by the first sealing shell 401 and the second sealing shell 402 seals the connection between the first pipe 1 and the second pipe 2.

[0029] Example 2

[0030] Please see Figure 1-6 Based on Embodiment 1, a sealing groove is provided on the side of the mounting plate 3 away from the first pipe 1, a sealing ring is fixedly connected to the side of the mounting plate 3 away from the second pipe 2, and annular slots are provided on the top and bottom of one side of the mounting plate 3. Annular plates are fixedly connected to one side of the inner cavity of the first sealing shell 401 and the second sealing shell 402, and the surface of the annular plates is movably connected to the inner cavity of the annular slots. A sealing ring is fixedly connected to one side of the sealing sleeve 407, and the surfaces of the first pipe 1 and the second pipe 2 are in tight contact with the inner wall of the sealing ring. A slot is provided on one side of the first sealing shell 401, and an insert is fixedly connected to the side of the second sealing shell 402 facing the first sealing shell 401. The surface of the insert is movably connected to the inner cavity of the slot. Annular sealing gaskets are fixedly connected to the inner walls of the first sealing shell 401 and the second sealing shell 402, and the surfaces of the first pipe 1 and the second pipe 2 are in tight contact with the annular sealing gaskets. A connecting sleeve 5 is fixedly connected to the surface of the sealing sleeve 407, and one side of the first sealing shell 401 and the second sealing shell 402 is fixedly connected to the surface of the connecting sleeve 5.

[0031] Specifically: As the mounting plates 3 at one end of the first pipe 1 and the second pipe 2 are pressed together, the sealing rings are engaged in the sealing grooves. The sealing structure formed by the sealing rings and the sealing grooves improves the sealing performance between the mounting plates 3. As the first sealing shell 401 and the second sealing shell 402 are installed and fixed on the outside of the mounting plate, the annular retaining plates on one side of the first sealing shell 401 and the second sealing shell 402 are engaged in the annular grooves on the surface of the mounting plate 3. The limiting structure formed by the annular retaining plates and the annular grooves greatly improves the connection strength between the first sealing shell 401 and the second sealing shell 402 and the mounting plate 3. The sealing sleeve 407 is installed on the surface of the first pipe 1 and the second pipe 2 along with the first sealing shell 401 and the second sealing shell 402, and the sealing ring on the inner wall of the sealing sleeve 407 further improves the sealing performance between the sealing sleeve 407 and the first pipe 1 and the second pipe 2. The sealing shell 402 is tightly fitted, and the insert on the second sealing shell 402 is inserted into the slot on the surface of the first sealing shell 401. The limiting structure formed by the insert and the slot can greatly improve the connection strength between the first sealing shell 401 and the second sealing shell 402. As the first sealing shell 401 and the second sealing shell 402 are installed at the connection between the first pipe 1 and the second pipe 2, the annular sealing gaskets on the inner walls of the first sealing shell 401 and the second sealing shell 402 press against the surface of the first pipe 1 and the second pipe 2, thereby improving the sealing performance of the connection between the first sealing shell 401 and the second sealing shell 402 and the first pipe 1 and the second pipe 2. One side of the connecting sleeve 5 is fixedly connected to the sealing sleeve 407, and the other side is fixedly connected to the surface of the first sealing shell 401 and the second sealing shell 402, thereby connecting the sealing sleeve 407 with the first sealing shell 401 and the second sealing shell 402 into a whole, improving the sealing and protection strength of the first pipe 1 and the second pipe 2.

[0032] The working principle of this utility model is as follows: First pipe 1 and second pipe 2 are moved so that the mounting plates 3 at one end of each pipe are in close contact. Then, first sealing shell 401 and second sealing shell 402 are moved simultaneously until the insert block on one side of second sealing shell 402 is inserted into the slot cavity on the surface of first sealing shell 401. At this time, the two mounting brackets 403 and two mounting pieces 405 are tightly attached. Then, mounting bolts 404 and fastening bolts 406 are inserted into the mounting holes on the surfaces of mounting brackets 403 and mounting pieces 405, respectively. Screw nuts onto the surface of 6 to reinforce the first sealing shell 401 and the second sealing shell 402 from all directions. At this time, the sealing sleeves 407 on one side of the first sealing shell 401 and the second sealing shell 402 wrap around the surface of the first pipe 1 and the second pipe 2. The first sealing shell 401 and the second sealing shell 402 press against the surface of the mounting plate 3 respectively, so that the two mounting plates 3 fit tightly together, preventing the mounting plates 3 from loosening due to external vibration. The sealing structure between the mounting plates 3 is protected by the first sealing shell 401 and the second sealing shell 402, which slows down the aging rate.

[0033] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A sealing and leak-proof device for a pipe connection, comprising a first pipe (1) and a second pipe (2), characterized in that: The first pipe (1) and the second pipe (2) are fixedly connected to one end of each other with a mounting plate (3), and a sealing component (4) is provided on the surface of the first pipe (1) and the second pipe (2) and on the outside of the mounting plate (3). The sealing assembly (4) includes a first sealing shell (401), the inner cavity of the first sealing shell (401) is movably connected to the surface of the first pipe (1), a second sealing shell (402) is provided on one side of the first sealing shell (401), a mounting bracket (403) is fixedly connected to the top of the first sealing shell (401) and the second sealing shell (402), a mounting bolt (404) is connected through the surface of the mounting bracket (403), a mounting piece (405) is fixedly connected to the front and back of the first sealing shell (401) and the second sealing shell (402), a fastening bolt (406) is connected through the surface of the mounting piece (405), and a sealing sleeve (407) is fixedly connected to the opposite side of the first sealing shell (401) and the second sealing shell (402).

2. The sealing and leak-proof device for pipe connections according to claim 1, characterized in that: A sealing groove is provided on the side of the mounting plate (3) away from the first pipe (1), and a sealing ring is fixedly connected on the side of the mounting plate (3) away from the second pipe (2).

3. The sealing and leak-proof device for pipe connections according to claim 1, characterized in that: The top and bottom of one side of the mounting plate (3) are provided with annular slots. Annular plates are fixedly connected to one side of the inner cavity of the first sealing shell (401) and the second sealing shell (402). The surface of the annular plates is movably connected to the inner cavity of the annular slots.

4. A sealing and leak-proof device for pipe connections according to claim 1, characterized in that: A sealing ring is fixedly connected to one side of the sealing sleeve (407), and the surfaces of the first pipe (1) and the second pipe (2) are in close contact with the inner wall of the sealing ring.

5. A sealing and leak-proof device for pipe connections according to claim 1, characterized in that: The first sealing shell (401) has a slot on one side, and the second sealing shell (402) has a plug fixedly connected to the side facing the first sealing shell (401), and the surface of the plug is movably connected to the inner cavity of the slot.

6. A sealing and leak-proof device for pipe connections according to claim 1, characterized in that: The inner walls of the first sealing shell (401) and the second sealing shell (402) are both fixedly connected with annular sealing gaskets, and the surfaces of the first pipe (1) and the second pipe (2) are in close contact with the annular sealing gaskets.

7. A sealing and leak-proof device for pipe connections according to claim 1, characterized in that: A connecting sleeve (5) is fixedly connected to the surface of the sealing sleeve (407), and one side of the first sealing shell (401) and the second sealing shell (402) are both fixedly connected to the surface of the connecting sleeve (5).

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