An easy-to-disassemble pipe packing seal joint

Abstract

This utility model relates to the field of sealing joint technology, and in particular to a pipe packing sealing joint that is easy to disassemble. It includes a pipe joint, a seamless steel pipe, and braided packing. The lower end of the pipe joint is fixedly connected to a connecting and fixing mechanism via a flange. An oil injection mechanism is installed inside the pipe joint, and a clamping mechanism is installed inside the connecting and fixing mechanism. The connecting and fixing mechanism includes a flange joint, with a connecting fork fixedly connected to the outside of the flange joint. A rotating threaded rod is rotatably connected to the inside of the connecting fork, and a nut is helically connected to the outside of the rotating threaded rod. A magnetic cap is fixedly connected to one end of the rotating threaded rod. The oil injection mechanism includes an oil injection ring with an oil hole on its inner side. In this utility model, the device automatically releases the pure lubricating oil retained inside during disassembly. This lubricating oil provides better lubrication and cooling during the removal of the packing from the device, making the disassembly process smoother.

Description

Technical Field

[0001] This utility model relates to the field of sealing joint technology, specifically a pipe packing sealing joint that is easy to disassemble. Background Technology

[0002] Pipe packing seal joints are sealing devices used at pipe connections. They use packing as the sealing material and achieve a tight seal between pipes through specific structural design and installation methods. Packing is a sealing filler made of soft, woven thread with good elasticity and compressibility. In pipe packing seal joints, packing is filled into the sealing cavity. A pressure is applied by the gland to press the packing tightly against the pipe connection surface, forming an effective seal.

[0003] Packing is usually woven into strips with a square cross-sectional area. This design allows the packing to generate a large radial clamping force after being subjected to axial clamping force, thus tightly fitting against the inner wall of the shaft and the sealing cavity and effectively preventing media leakage.

[0004] However, the square cross-section design results in sharp edges on the packing. Due to prolonged compression and use, the packing will adhere tightly to the pipe connection surface and the sealing cavity. If the packing is not properly lubricated during disassembly, it will damage the packing and the joint cavity, rendering the joint unusable and causing certain economic losses. Therefore, a pipe packing sealing joint that is easy to disassemble is proposed to address the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a pipe packing sealing joint that is easy to disassemble, in order to solve the problem that after the packing has been compressed and used for a long time, it will form a tight fit with the pipe connection surface and the sealing cavity. If the packing is not properly lubricated during disassembly, it will damage the packing and the joint cavity, making the joint unusable.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A disassembleable pipe packing sealing joint includes a pipe joint, a seamless steel pipe, and braided packing. The lower end of the pipe joint is fixedly connected to a connecting and fixing mechanism via a flange. An oil injection mechanism is installed inside the pipe joint. A clamping mechanism is installed inside the connecting and fixing mechanism. The connecting and fixing mechanism includes a flange joint. A connecting fork is fixedly connected to the outer side of the flange joint. A rotating threaded rod is rotatably connected to the inner side of the connecting fork. A nut is helically connected to the outer side of the rotating threaded rod. A magnetic cap is fixedly connected to one end of the rotating threaded rod. The oil injection mechanism includes an oil injection ring. An oil hole is opened inside the oil injection ring. An oil nozzle is fixedly installed inside the oil injection ring. A round hole is opened at one end of the oil nozzle. A grooved block assembly is fixedly installed inside the oil nozzle.

[0008] As a further optimization of this utility model, the braided packing is fitted on the outside of the seamless steel pipe and is tightly attached to the inner wall of the pipe joint. Multiple braided packings are provided, and at least one braided packing is located above the oil injection ring. The thickness of the braided packing is three-fifths of that of the oil injection ring.

[0009] As a further optimization of this utility model, the groove block assembly includes a grooved block, an oil passage is formed on the inner side of the grooved block, an oil storage groove is formed on the inner side of the grooved block, a sealing pipe is fixedly connected to one side of the grooved block, a magnetic ball is slidably connected to the inner side of the sealing pipe, a spring ring is fixedly connected to the outer side of the magnetic ball, a short rod is fixedly connected to one side of the magnetic ball, a plug is fixedly connected to one end of the short rod, and a filter hole is formed on the inner side of the plug.

[0010] As a further optimization of this utility model, the oil circuit is connected to the internal cavity of the oil injection ring through a circular hole, the angle between the central axis of the oil storage tank and the central axis of the grooved block is 25°, and the inner side of the oil storage tank is in contact with the outer side of the magnetic ball.

[0011] As a further optimization of this utility model, the magnetic ball has the same diameter as the spring ring, the outer side of the spring ring is in close contact with the inner side of the sealing tube, the magnetic ball, the short rod and the plug are on the same axis, and the filter holes are evenly and equidistantly distributed in a ring array on the inner side of the plug.

[0012] As a further optimization of this utility model, the pressing mechanism includes a chassis, a slot is provided on one side of the chassis, an arc corner is provided on one side of the chassis, and a plug tube is fixedly connected to the upper end of the chassis.

[0013] As a further optimization of this utility model, the position of the slot corresponds one-to-one with the position of the arc angle, the width of the slot is 1.2 times the diameter of the rotating threaded rod, the outer side of the plug tube is in close contact with the inner side of the flange joint, and the upper end of the plug tube is in close contact with the bottom end of the braided disc root.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the connection and fixing mechanism and the oil injection mechanism enable the device to automatically release the pure lubricating oil retained inside during disassembly. This lubricating oil can play a better role in lubrication and cooling during the process of removing the packing from the inside of the device, making the disassembly process smoother, reducing the difficulty of disassembly, and avoiding the failure of the joint during disassembly, thus having good economic benefits. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an overall sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the connection and fixing mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the oil injection mechanism of this utility model;

[0020] Figure 5 This is a cross-sectional view of the oil injection mechanism of this utility model;

[0021] Figure 6 This is a cross-sectional view of the oil nozzle of this utility model;

[0022] Figure 7 This is an exploded view of the slot block assembly of this utility model;

[0023] Figure 8 This is a cutaway front view of the slot block assembly of this utility model;

[0024] Figure 9 This is a cross-sectional front view of the clamping mechanism of this utility model.

[0025] In the diagram: 1. Pipe fitting; 2. Seamless steel pipe;

[0026] 3. Connecting and fixing mechanism; 31. Flange joint; 32. Connecting fork; 33. Rotating threaded rod; 34. Nut; 35. Magnetic cap;

[0027] 4. Braiding the root system;

[0028] 5. Oil injection mechanism; 51. Oil injection ring; 52. Oil hole; 53. Oil nozzle; 54. Round hole; 55. Groove block assembly; 551. With groove block; 552. Oil passage; 553. Oil reservoir; 554. Sealing pipe; 555. Magnetic ball; 556. With spring ring; 557. Short rod; 558. Plug; 559. Filter hole;

[0029] 6. Clamping mechanism; 61. Chassis; 62. Slot; 63. Arc angle; 64. Plug tube. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] Please see Figure 1-9 This utility model provides a technical solution:

[0033] A disassembleable pipe packing sealing joint includes a pipe joint 1, a seamless steel pipe 2, and braided packing 4. The lower end of the pipe joint 1 is fixedly connected to a connecting and fixing mechanism 3 via a flange. An oil injection mechanism 5 is installed inside the pipe joint 1. A clamping mechanism 6 is installed inside the connecting and fixing mechanism 3. The connecting and fixing mechanism 3 includes a flange joint 31. A connecting fork 32 is fixedly connected to the outside of the flange joint 31. A rotating threaded rod 33 is rotatably connected to the inside of the connecting fork 32. A nut 34 is helically connected to the outside of the rotating threaded rod 33. A magnetic cap 35 is fixedly connected to one end of the rotating threaded rod 33. The oil injection mechanism 5 includes an oil injection ring 51. An oil hole 52 is opened inside the oil injection ring 51. An oil nozzle 53 is fixedly installed inside the oil injection ring 51. A round hole 54 is opened at one end of the oil nozzle 53. A groove block assembly 55 is fixedly installed inside the oil nozzle 53.

[0034] As a further implementation of this scheme, the braided packing 4 is sleeved on the outside of the seamless steel pipe 2 and tightly attached to the inner wall of the pipe joint 1. Multiple braided packings 4 are provided, with at least one braided packing 4 located above the oil injection ring 51. The thickness of the braided packing 4 is three-fifths of that of the oil injection ring 51. This arrangement ensures that the oil injection ring 51 can fully lubricate the braided packing 4 above it. The lubricating oil can evenly penetrate to the surface of the braided packing 4 through the oil holes 52 opened in the oil injection ring 51 to form a lubricating oil film and reduce friction and wear.

[0035] As a further implementation of this solution, the groove block assembly 55 includes a grooved block 551. An oil passage 552 is formed inside the grooved block 551, and an oil reservoir 553 is formed inside the grooved block 551. A sealing pipe 554 is fixedly connected to one side of the grooved block 551. A magnetic ball 555 is slidably connected inside the sealing pipe 554. A spring ring 556 is fixedly connected to the outside of the magnetic ball 555. A short rod 557 is fixedly connected to one side of the magnetic ball 555, and a plug 558 is fixedly connected to one end of the short rod 557. A filter hole 559 is formed inside the plug 558. The oil passage 552 communicates with the internal cavity of the oil injection ring 51 through a round hole 54. The angle between the central axis of the oil reservoir 553 and the central axis of the grooved block 551 is 25°. The inner side of the oil reservoir 553 is in contact with the outer side of the magnetic ball 555. The diameter of the magnetic ball 555 is... The spring ring 556 has the same diameter as the sealing tube 554. The outer side of the spring ring 556 is in close contact with the inner side of the sealing tube 554. The magnetic ball 555, the short rod 557 and the plug 558 are on the same axis. The filter holes 559 are evenly distributed in a ring array on the inner side of the plug 558. The magnetic ball 555, the short rod 557 and the plug 558 are on the same axis. This design ensures that the magnetic ball 555 can drive the short rod 557 and the plug 558 to move together when it moves, and the movement process is smooth and without deviation. The filter holes 559 are evenly distributed in a ring array on the inner side of the plug 558. This design ensures that the lubricating oil can be uniformly filtered when it passes through the plug 558, removing impurities and particles, and improving the purity and lubrication effect of the lubricating oil. The design of the oil reservoir 553 makes the gap between the magnetic ball 555 and the inner wall of the oil nozzle 53 gradually increase during the movement, making it easier for the lubricating oil to enter the oil filling ring 51 through the oil nozzle 53.

[0036] As a further implementation of this solution, the clamping mechanism 6 includes a chassis 61. A slot 62 is provided on one side of the chassis 61, and an arc angle 63 is provided on one side of the chassis 61. A plug tube 64 is fixedly connected to the upper end of the chassis 61. The position of the slot 62 corresponds one-to-one with the position of the arc angle 63. The width of the slot 62 is 1.2 times the diameter of the rotating threaded rod 33. The outer side of the plug tube 64 is in close contact with the inner side of the flange joint 31, and the upper end of the plug tube 64 is in close contact with the bottom end of the braided packing 4. The size design of the arc angle 63 and the slot 62 not only ensures sufficient connection strength between the chassis 61 and the rotating threaded rod 33, but also leaves a certain margin for easy installation and adjustment.

[0037] Working process: When using the device, the seamless steel pipe 2 is inserted into the pipe joint 1, and then the braided packing 4 is fitted onto the outside of the seamless steel pipe 2 and installed into the pipe joint 1. Next, the pipe joint 1 is fixedly connected to the fixing mechanism 3 through the flange, and the rotating threaded rod 33 is rotated to engage with the groove 62. The arc angle 63 guides the rotating threaded rod 33 into the groove 62. Then, by rotating the nut 34, the nut 34 drives the base plate 61 to move upward, causing the plug tube 64 to penetrate into the inside of the flange joint 31 and be squeezed upward. The braided packing 4 undergoes axial compression deformation and radial expansion. Constrained by the inner wall of the pipe joint 1 and the base 61, the braided packing 4 cannot expand freely, thus tightly fitting against the inner wall of the pipe joint 1 and the surface of the seamless steel pipe 2, filling the gaps. Next, lubricating oil is injected into the cavity inside the oil injection ring 51 through the grease nipple 53. During this process, the short rod 557 is compressed, causing the magnetic ball 555 to move. At this time, the lubricating oil enters the grease nipple 53 through the filter hole 559 opened inside the plug block 558, and then flows through the oil passage 552 and the oil hole 5... 2. The oil flows into the surface of the braided packing 4, further forming an oil film between the braided packing 4 and the inner wall of the pipe fitting 1 and the surface of the seamless steel pipe 2, improving the sealing performance. After the oil injection is completed, the spring in the spring ring 556 returns to its original shape, causing the spring ring 556 to drive the magnetic ball 555 to reset. A portion of the lubricating oil will remain in the oil reservoir 553. When the device needs to be disassembled, first loosen the fixing between the rotating threaded rod 33 and the chassis 61 by turning the nut 34, then rotate the rotating threaded rod 33 to rotate the magnetic cap 35 above the connecting fork 32. At this time, the magnetic cap The magnetic repulsion between the magnetic ball 555 and the oil nozzle 553 causes the magnetic ball 555 to move. During this process, the distance the magnetic ball 555 moves is twice the distance it moves during the oil injection operation. This forces the lubricating oil retained in the oil reservoir 553 to be squeezed onto the surface of the braided packing 4 through the round hole 54 and the oil hole 52. Since the internal space of the oil nozzle 53 is relatively independent, this part of the lubricating oil is relatively pure and can better play its lubricating and cooling role. This facilitates the removal of the braided packing 4 during the subsequent disassembly process, making the disassembly process smoother, reducing the difficulty of disassembly, and improving work efficiency.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe packing sealing joint that is easy to disassemble, comprising a pipe fitting (1), a seamless steel pipe (2), and braided packing (4), characterized in that: The lower end of the pipe joint (1) is fixedly connected to a connecting and fixing mechanism (3) via a flange. An oil injection mechanism (5) is installed inside the pipe joint (1), and a clamping mechanism (6) is installed inside the connecting and fixing mechanism (3). The connecting and fixing mechanism (3) includes a flange joint (31), a connecting fork (32) is fixedly connected to the outside of the flange joint (31), a rotating threaded rod (33) is rotatably connected to the inside of the connecting fork (32), a nut (34) is helically connected to the outside of the rotating threaded rod (33), and a magnetic cap (35) is fixedly connected to one end of the rotating threaded rod (33). The oil injection mechanism (5) includes an oil injection ring (51), an oil hole (52) is opened on the inside of the oil injection ring (51), an oil nozzle (53) is fixedly installed on the inside of the oil injection ring (51), a round hole (54) is opened at one end of the oil nozzle (53), and a groove block assembly (55) is fixedly installed on the inside of the oil nozzle (53).

2. The easily disassembled pipe packing sealing joint according to claim 1, characterized in that: The braided packing (4) is fitted on the outside of the seamless steel pipe (2) and is in close contact with the inner wall of the pipe joint (1). There are multiple braided packings (4), and at least one braided packing (4) is located above the oil injection ring (51). The thickness of the braided packing (4) is three-fifths of that of the oil injection ring (51).

3. The easily disassembled pipe packing sealing joint according to claim 1, characterized in that: The slotted block assembly (55) includes a slotted block (551), an oil passage (552) is provided on the inner side of the slotted block (551), an oil storage tank (553) is provided on the inner side of the slotted block (551), a sealing tube (554) is fixedly connected to one side of the slotted block (551), a magnetic ball (555) is slidably connected to the inner side of the sealing tube (554), a spring ring (556) is fixedly connected to the outer side of the magnetic ball (555), a short rod (557) is fixedly connected to one side of the magnetic ball (555), a plug (558) is fixedly connected to one end of the short rod (557), and a filter hole (559) is provided on the inner side of the plug (558).

4. The easily disassembled pipe packing sealing joint according to claim 3, characterized in that: The oil passage (552) is connected to the internal cavity of the oil injection ring (51) through the round hole (54). The angle between the central axis of the oil storage tank (553) and the central axis of the grooved block (551) is 25°. The inner side of the oil storage tank (553) is in contact with the outer side of the magnetic ball (555).

5. A pipe packing sealing joint that is easy to disassemble according to claim 3, characterized in that: The diameter of the magnetic ball (555) is equal to the diameter of the spring ring (556). The outer side of the spring ring (556) is in close contact with the inner side of the sealing tube (554). The magnetic ball (555), the short rod (557) and the plug (558) are on the same axis. The filter holes (559) are evenly and equidistantly distributed in a ring array on the inner side of the plug (558).

6. A pipe packing sealing joint that is easy to disassemble according to claim 1, characterized in that: The clamping mechanism (6) includes a chassis (61), a slot (62) is provided on one side of the chassis (61), an arc corner (63) is provided on one side of the chassis (61), and a plug tube (64) is fixedly connected to the upper end of the chassis (61).

7. A pipe packing sealing joint that is easy to disassemble according to claim 6, characterized in that: The position of the slot (62) corresponds one-to-one with the position of the arc angle (63). The width of the slot (62) is 1.2 times the diameter of the rotating threaded rod (33). The outer side of the plug tube (64) is in close contact with the inner side of the flange joint (31). The upper end of the plug tube (64) is in close contact with the bottom end of the braided packing (4).

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