Water pipeline fastening and sealing structure

Abstract

The utility model discloses a water pipeline fastening and sealing structure which comprises a front conducting pipe and a rear conducting pipe arranged below the front conducting pipe, an inner sealing ring is fixed to the bottom end of the front conducting pipe, an annular upper groove is formed in the inner sealing ring, an inner flow guide sleeve is fixed to the top end of the rear conducting pipe, and an annular lower groove is formed in the inner sealing ring. The inner flow guide sleeve is connected with the annular upper groove in an inserted mode, an outer sealing ring is fixed to the outer circumferential face of the inner flow guide sleeve, the outer sealing ring and the inner sealing ring are in threaded fit, and a magnetic attraction locking assembly is arranged between the inner wall of the inner sealing ring and the top end of the inner flow guide sleeve. According to the magnetic attraction locking assembly, the outer sealing ring and the inner sealing ring are prevented from rotating relatively, additional attraction force is formed at the threaded connection position, threads are prevented from loosening in the operation process, the durability of threaded connection between the inner sealing ring and the outer sealing ring is improved, and the service life of a pipeline system is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline joint sealing, in particular to a water pipe fastening and sealing structure. Background Art

[0002] The fastening and sealing structure of water pipes plays a vital role in the pipeline system. It is mainly used to connect the ends of the pipes to ensure the stability, sealing and safety of the pipeline system. This structure generally includes pipe flanges, bolts, gaskets and the like. The liquid or gas transmitted in the pipeline system often needs to maintain a certain pressure, and one of the main functions of the fastening and sealing structure is to prevent leakage at the pipe joint. Through reasonable fastening design, a uniform force distribution can be formed between the bolts and the flanges, so that the sealing gasket can effectively fill the gap at the joint, thereby preventing medium leakage and ensuring the airtightness of the system. For example, a sealing structure for sewage pipe connection disclosed in the authorization announcement number CN213299131U includes a pipe, an outer wall opening on one side of the pipe is provided with a first outer pipe threaded joint, and an annular convex groove is embedded on the other side of the first outer pipe threaded joint, and a second outer pipe threaded joint is provided on the other side of the pipe, and an annular groove is embedded inside one side of the second outer pipe threaded joint, and a first groove is embedded on one side of the surface of the pipe. By The annular convex groove is embedded in the annular groove of the left section of the pipe, so that it can assist in the splicing when calibrating the position. It can effectively and conveniently calibrate the position of the two sections of the pipe and splice them. However, this technical solution adopts a large number of internal and external thread matching structures to enable the two pipe ends to be docked and sealed. In harsh environments such as humidity, corrosion or high temperature, the threaded structure is susceptible to corrosion and wear, which reduces its fastening effect. In addition, the pipeline system may be subject to vibration and impact during operation, such as the water hammer effect inside the pipeline. These external forces will affect the threaded connection, causing the threaded part to gradually loosen, thereby affecting the sealing performance of the pipeline joint. Utility Model Content

[0003] The purpose of the utility model is to provide a water pipe fastening and sealing structure to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water pipe fastening and sealing structure, comprising a front conducting pipe and a rear conducting pipe arranged below the front conducting pipe, the bottom end of the front conducting pipe is fixed with an inner sealing ring, and the interior of the inner sealing ring is provided with an annular upper groove, the top end of the rear conducting pipe is fixed with an inner guide sleeve, the inner guide sleeve and the annular upper groove are plugged into each other, the outer peripheral surface of the inner guide sleeve is fixed with an outer sealing ring, the outer sealing ring and the inner sealing ring are threadedly matched, and a magnetic locking component is provided between the inner wall of the inner sealing ring and the top of the inner guide sleeve.

[0005] Preferably, an upper flange and a lower flange are welded to ends of the front conducting tube and the rear conducting tube that are away from each other, respectively.

[0006] Preferably, an outer circumferential surface of the inner sealing ring is provided with an external thread groove, and an inner wall of the outer sealing ring is provided with an internal thread groove threadably matched with the external thread groove.

[0007] Preferably, four fan-shaped connecting blocks are fixed at equal intervals on the outer peripheral surface of the inner guide sleeve, and the outer wall of the fan-shaped connecting block is fixedly connected to the inner wall of the outer sealing ring.

[0008] Preferably, the diameter and depth of the annular upper groove are equal to the outer diameter and depth of the inner guide sleeve.

[0009] Preferably, the outer diameter of the outer sealing ring is equal to the outer diameters of the upper flange and the lower flange, and the outer sealing ring is made of alloy steel.

[0010] Preferably, the magnetic locking assembly is composed of four equidistant rectangular notches arranged on the inner wall of the inner sealing ring and four magnetic plug-ins installed on the top of the inner guide sleeve, and a magnet for the magnetic plug-in is arranged on the inner wall of one side of the rectangular notch.

[0011] Preferably, the magnetic plug-in unit comprises two U-shaped guide blocks integrally formed at the top end of the inner guide sleeve, and a stainless steel plug-in block slidably installed between the two U-shaped guide blocks, and the stainless steel plug-in block and the magnet are magnetically attracted to each other.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the water pipe fastening and sealing structure forms a first sealing layer on the outside of the front guiding pipe and the rear guiding pipe through the inner sealing ring and the inner guide sleeve; when the outer sealing ring and the inner sealing ring are screwed to the limit position, the magnetic locking assembly prevents the outer sealing ring and the inner sealing ring from rotating relative to each other, and forms additional adsorption force at the threaded connection part to prevent the thread from loosening during operation, thereby improving the durability of the threaded connection between the inner sealing ring and the outer sealing ring and extending the service life of the pipeline system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 The three-dimensional structure of the front conducting tube of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 4 The three-dimensional structure of the front conducting tube of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 5 This is a schematic diagram of the top view of the front conducting tube of the utility model;

[0018] In the figure: 1. front conducting tube; 2. rear conducting tube; 3. upper flange; 4. lower flange; 5. inner sealing ring; 501. annular upper groove; 502. external thread groove; 6. rectangular notch; 601. magnet; 7. inner guide sleeve; 8. fan-shaped connecting block; 9. external sealing ring; 901. internal thread groove; 10. magnetic plug-in unit; 1001. U-shaped guide block; 1002. stainless steel plug-in unit. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-5 The utility model provides an embodiment: a water pipe fastening and sealing structure, comprising a front conducting pipe 1 and a rear conducting pipe 2 arranged below the front conducting pipe 1, the front conducting pipe 1 and the rear conducting pipe 2 are respectively welded with an upper flange 3 and a lower flange 4 at their ends away from each other, and the rear conducting pipe 2 and the front conducting pipe 1 in the structure can be connected to the opposite ends of the two pipes in the form of flange bolting;

[0021] An inner sealing ring 5 is fixed to the bottom end of the front guide tube 1, and an annular upper groove 501 is provided inside the inner sealing ring 5, and an outer thread groove 502 is provided on the outer peripheral surface of the inner sealing ring 5;

[0022] An inner guide sleeve 7 is fixed to the top of the rear guide pipe 2. The inner guide sleeve 7 and the annular upper groove 501 are plugged into each other. The diameter and depth of the annular upper groove 501 are equal to the outer diameter and depth of the inner guide sleeve 7. An outer sealing ring 9 is fixed to the outer peripheral surface of the inner guide sleeve 7. The outer sealing ring 9 and the inner sealing ring 5 are threadedly matched. An inner thread groove 901 threadedly matched with the outer thread groove 502 is provided on the inner wall of the outer sealing ring 9. After the sealing structure is connected, a second sealing layer is formed between the inner sealing ring 5 and the outer sealing ring 9. The two components can be more firmly connected together through the cooperation of the inner and outer threads, and further prevent liquid or gas from leaking at the pipeline connection, thereby improving the safety of the pipeline system.

[0023] A magnetic locking assembly is provided between the inner wall of the inner sealing ring 5 and the top of the inner guide sleeve 7. The magnetic locking assembly is four equidistant rectangular notches 6 provided on the inner wall of the inner sealing ring 5 and four magnetic plug-ins 10 installed on the top of the inner guide sleeve 7. A magnet 601 for magnetically attracting the magnetic plug-in 10 is provided on the inner wall of one side of the rectangular notch 6.

[0024] The magnetic plug-in 10 includes two U-shaped guide blocks 1001 integrally formed at the top of the inner guide sleeve 7, and a stainless steel plug-in 1002 slidably installed between the two U-shaped guide blocks 1001. The stainless steel plug-in 1002 and the magnet 601 are magnetically attracted to each other. After the inner sealing ring 5 and the inner guide sleeve 7 are assembled, the magnet 601 generates suction force on the stainless steel plug-in 1002, so that the stainless steel plug-in 1002 is sucked into the rectangular notch 6, and at this time, part of the stainless steel plug-in 1002 is still retained in the U-shaped guide block 1001, so that the stainless steel plug-in 1002 and the inner guide sleeve 7 are used to realize the anti-rotation function of the inner sealing ring 5, avoid the loosening of the threads between the inner sealing ring 5 and the outer sealing ring 9, and ensure the connection stability of the sealing structure;

[0025] Four fan-shaped connecting blocks 8 are fixed at equal intervals on the outer circumference of the inner guide sleeve 7. The outer wall of the fan-shaped connecting block 8 is fixedly connected to the inner wall of the outer sealing ring 9. The outer diameter of the outer sealing ring 9 is equal to the outer diameters of the upper flange 3 and the lower flange 4. The outer sealing ring 9 is made of alloy steel. The alloy steel has excellent strength and hardness and can withstand stress and impact under high pressure and high temperature environment. This enables the outer sealing ring 9 to maintain a stable shape and performance under harsh working conditions, ensuring the sealing effect and connection reliability;

[0026] The fan-shaped connecting block 8 helps to disperse the pressure and stress at the connection point between the inner guide sleeve 7 and the outer sealing ring 9, reduce the fatigue and loss of the material connection between the two, and thus improve the structural strength of the front guide pipe 1, the inner guide sleeve 7 and the outer sealing ring 9.

[0027] When the embodiment of the present application is used, the staff first uses flange bolting to connect the rear conductive pipe 2 and the front conductive pipe 1 in the structure to the opposite ends of the two pipes, and then the staff brings the two pipe ends close to each other, and the inner sealing ring 5 and the outer sealing ring 9 are screwed together until the inner guide sleeve 7 is completely sunk into the annular upper groove 501 of the inner sealing ring 5, and then the ends of the front conductive pipe 1 and the rear conductive pipe 2 are in contact with each other and docked. At this time, the inner sealing ring 5 and the inner guide sleeve 7 form a first sealing layer on the outside of the front conductive pipe 1 and the rear conductive pipe 2. Through this design, it is possible to effectively prevent medium leakage. To ensure the sealing of the pipeline system, when the outer sealing ring 9 and the inner sealing ring 5 are screwed to the limit position, the magnet 601 in the rectangular notch 6 generates suction to the magnetic plug-in 10, so that the magnetic plug-in 10 enters the rectangular notch 6, and the inner sealing ring 5 is locked by the cooperation of the magnetic plug-in 10 and the rectangular notch 6. At this time, the inner sealing ring 5 and the outer sealing ring 9 cannot rotate relative to each other, that is, through the action of the magnetic material, an additional adsorption force is formed at the threaded connection part to prevent the thread from loosening during operation, thereby improving the durability of the threaded connection between the inner sealing ring 5 and the outer sealing ring 9 and extending the service life of the pipeline system.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A water pipe fastening and sealing structure, characterized in that: The invention comprises a front conducting tube (1) and a rear conducting tube (2) arranged below the front conducting tube (1); an inner sealing ring (5) is fixed to the bottom end of the front conducting tube (1), and an annular upper groove (501) is arranged inside the inner sealing ring (5); an inner flow guide sleeve (7) is fixed to the top end of the rear conducting tube (2); the inner flow guide sleeve (7) and the annular upper groove (501) are plugged into each other; an outer sealing ring (9) is fixed to the outer peripheral surface of the inner flow guide sleeve (7); the outer sealing ring (9) and the inner sealing ring (5) are threadedly matched; and a magnetic locking component is arranged between the inner wall of the inner sealing ring (5) and the top end of the inner flow guide sleeve (7).

2. A water pipe fastening and sealing structure according to claim 1, characterized in that: An upper flange (3) and a lower flange (4) are respectively welded to the ends of the front conducting tube (1) and the rear conducting tube (2) that are away from each other.

3. A water pipe fastening and sealing structure according to claim 1, characterized in that: The outer peripheral surface of the inner sealing ring (5) is provided with an external thread groove (502), and the inner wall of the outer sealing ring (9) is provided with an internal thread groove (901) threadably matched with the external thread groove (502).

4. A water pipe fastening and sealing structure according to claim 1, characterized in that: Four fan-shaped connecting blocks (8) are fixed at equal intervals on the outer peripheral surface of the inner guide sleeve (7), and the outer wall of the fan-shaped connecting block (8) is fixedly connected to the inner wall of the outer sealing ring (9).

5. A water pipe fastening and sealing structure according to claim 1, characterized in that: The diameter and depth of the annular upper groove (501) are equal to the outer diameter and depth of the inner guide sleeve (7).

6. A water pipe fastening and sealing structure according to claim 1, characterized in that: The outer diameter of the outer sealing ring (9) is equal to the outer diameters of the upper flange (3) and the lower flange (4), and the outer sealing ring (9) is made of a component made of alloy steel.

7. A water pipe fastening and sealing structure according to claim 1, characterized in that: The magnetic locking assembly comprises four equidistant rectangular notches (6) arranged on the inner wall of the inner sealing ring (5), and four magnetic plug-ins (10) installed on the top of the inner guide sleeve (7); a magnet (601) for magnetically attracting the magnetic plug-in (10) is arranged on the inner wall of one side of the rectangular notch (6).

8. A water pipe fastening and sealing structure according to claim 7, characterized in that: The magnetic plug-in unit (10) comprises two U-shaped guide blocks (1001) integrally formed at the top end of the inner guide sleeve (7), and a stainless steel plug-in block (1002) slidably mounted between the two U-shaped guide blocks (1001), wherein the stainless steel plug-in block (1002) and the magnet (601) are magnetically attracted to each other.

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