Sealing device suitable for high-pressure pipeline

Abstract

The utility model relates to the technical field of high-pressure pipeline sealing, in particular to a sealing device suitable for a high-pressure pipeline, which comprises a first connecting pipe, the right part of the outer surface of the first connecting pipe is fixedly connected with an anti-drop sealing block in a penetrating manner, the right part of the inner wall of the first connecting pipe is provided with a threaded groove, and the right end of the first connecting pipe is provided with a sealing gasket groove. A plurality of sealing gaskets are clamped in the sealing gasket groove, an inserting groove is formed in the right end of the anti-disengaging sealing block, the sealing gasket groove is located in the inner side of the inserting groove, and a second connecting pipe is arranged on the right side of the first connecting pipe. According to the sealing device suitable for the high-pressure pipeline, the threaded groove in the first connecting pipe is screwed with the threaded through pipe of the second connecting pipe, and the sealing washer, the sealing ring body, the clamping shell, the abutting plate, the anti-disengaging sealing block, the pressing plate and other structures are matched and interact with one another, so that the sealing effect is improved; and the two high-pressure connecting pipes can have good sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure pipeline sealing, and particularly relates to a high-pressure pipeline sealing device. Background Technique

[0002] In the general assembly and general test area of the rocket assembly building, the gas power system plays a crucial role, including a high-pressure air supply system, a high-pressure nitrogen supply system, a high-pressure helium supply system, and a process equipment control system; it is used to provide air, nitrogen, and helium media that meet the requirements for the rocket assembly building (general assembly transfer area, vertical test area), component manufacturing and turnover building, and the second-phase garage.

[0003] Among them, the large-flow gas demand is mainly located in the general assembly transfer area and the vertical test area; each gas source system is built according to the maximum envelope gas demand at each gas-using point to meet the daily maximum gas consumption demand and the maximum instantaneous consumption demand at each gas-using point. Therefore, the sealing effect of pipeline connection is crucial for the safe and stable operation of the entire system.

[0004] However, traditional pipeline connection methods often face problems such as poor sealing effect and limited pressure tolerance in high-pressure environments.

[0005] Based on this, this application is proposed. Content of the Utility Model

[0006] The main purpose of the utility model is to provide a high-pressure pipeline sealing device, which can effectively solve the problems in the background technique.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] A high-pressure pipeline sealing device includes a first connecting pipe. A disconnection-proof sealing block is fixedly connected to the right part of the outer surface of the first connecting pipe. A threaded groove is opened in the right part of the inner wall of the first connecting pipe. A sealing gasket groove is opened at the right end of the first connecting pipe. A plurality of sealing gaskets are clamped in the sealing gasket groove. A slot is opened at the right end of the disconnection-proof sealing block. The sealing gasket groove is located inside the slot. A second connecting pipe is arranged on the right side of the first connecting pipe. A threaded through pipe is fixedly connected to the left end of the second connecting pipe. A sealing ring body is fixedly connected to the left end of the threaded through pipe. A clamping shell is fixedly connected to the right part of the outer surface of the threaded through pipe. A pressing plate is fixedly connected to the inner right wall of the clamping shell. The clamping shell is located on the left side of the second connecting pipe. A pressing plate is movably connected to the outer surface of the second connecting pipe. A through circular hole is opened in the middle of the left end of the pressing plate. Six screws are threadedly connected to the left end of the pressing plate in a circular array.

[0009] The threaded through pipe is detachably connected to the first connecting pipe through the threaded groove, and the threaded through pipe is located inside the first connecting pipe.

[0010] Preferably, the cartridge is inserted into the slot.

[0011] By adopting the above technical solution: The threaded through-tube realizes detachable connection with the first connecting tube through the cooperation with the threaded groove. At the same time, the sealing ring body at its left end further enhances the sealing effect. The cartridge is inserted into the slot, strengthening the tightness and stability of the connection between the connecting tubes and reducing the possibility of connection loosening.

[0012] Preferably, the pressing plate corresponds to the positions of a plurality of sealing washers.

[0013] By adopting the above technical solution: After the threaded through-tube is connected to the first connecting tube, the pressing plate corresponds to the sealing washer. The pressing plate can play a role in tightly pressing the sealing washer, further enhancing the sealing effect, ensuring that there will be no leakage under high-pressure environments, and enabling the sealing washer to be evenly stressed and maintain good sealing performance. And the plurality of sealing washers are high-performance rubber rings, which have good elasticity and sealing performance. They can fill the gap between the first connecting tube and the threaded through-tube and effectively prevent the leakage of high-pressure fluid, ensuring the sealing integrity of the pipeline system and guaranteeing the safe and stable transmission of high-pressure fluid.

[0014] Preferably, the pressing plate is movably connected to the second connecting tube through a round hole, and the right end face of the anti-disengagement sealing block abuts against the left end face of the pressing plate but is not fixed.

[0015] By adopting the above technical solution: The pressing plate mainly plays a role in assisting in fastening and enhancing the connection stability. Its movable connection with the second connecting tube allows it to move and adjust its position within a certain range to better cooperate with the anti-disengagement sealing block.

[0016] Preferably, the right end of the anti-disengagement sealing block is provided with screw holes adapted to six screws.

[0017] By adopting the above technical solution: Screw holes adapted to the screws are provided on the anti-disengagement sealing block, enabling the screws to be firmly connected thereto, further enhancing the stability and reliability of the connection of the entire device.

[0018] Preferably, the pressing plate is threadedly and movably connected to the anti-disengagement sealing block through six screws.

[0019] By adopting the above technical solution: The screw plays a role in connection and fastening. It is threadedly movably connected with the screw hole on the anti-loosening sealing block. When the screw is tightened, it can tightly pull the pressing plate towards the anti-loosening sealing block, thereby applying pressure to the connection part of the first connecting pipe and the second connecting pipe, ensuring a tight and firm connection, preventing problems such as loosening and leakage under high-pressure conditions, etc. At the same time, the setting of multiple screws can make the fastening force more uniform and reliable, improving the safety and stability of the entire sealing device. In addition, it is also convenient for personnel to install and disassemble.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. In the utility model, the detachable connection between the threaded through pipe and the threaded groove makes the assembly and disassembly of the connecting pipe more convenient, which is conducive to the maintenance and replacement of components. The plug-in fit between the cartridge case and the slot can prevent the threaded through pipe from loosening and rotating during use, further ensuring the stability of the connection. The pressing plate corresponds to the sealing gasket, and together with the tight abutment between the anti-loosening sealing block and the pressing plate, it can effectively improve the sealing effect, ensure no leakage under high-pressure environment, and guarantee the normal operation of the oil pipeline;

[0022] 2. In the utility model, the anti-loosening sealing block and the pressing plate can be tightly combined through the screw, ensuring that the connection part is not easily loosened under various working conditions, improving the reliability of the overall connection. By tightening or loosening the screw, the pressure of the pressing plate on the anti-loosening sealing block can be adjusted, so that the sealing degree and connection tightness can be flexibly adjusted according to actual needs. Further, according to the change of the pressure in the pipeline, the tightening degree of the screw can be appropriately adjusted to adapt to different pressure conditions, ensuring that the sealing performance is always good. In addition, the continuous and effective tightening effect can reduce the fatigue and deformation of the sealing gasket, extend the service life of the sealing gasket, and further improve the durability of the entire sealing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of a high-pressure pipeline sealing device of the utility model;

[0024] Figure 2 is a schematic diagram of the connection structure between the first connecting pipe and the anti-loosening sealing block of a high-pressure pipeline sealing device of the utility model;

[0025] Figure 3 is a schematic diagram of the connection structure between the second connecting pipe, the threaded through pipe and the pressing plate of a high-pressure pipeline sealing device of the utility model;

[0026] Figure 4 is a schematic diagram of the overall structure of the pressing plate of a high-pressure pipeline sealing device of the utility model.

[0027] In the figure: 1. First connecting pipe; 2. Anti-disconnection sealing block; 3. Second connecting pipe; 4. Pressing plate; 5. Screw; 6. Thread groove; 7. Sealing gasket groove; 8. Multiple sealing gaskets; 9. Slot; 10. Threaded through pipe; 11. Sealing ring body; 12. Clamping shell; 13. Tightly pressing plate; 14. Round hole. Specific implementation manner

[0028] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0032] A high-pressure pipeline sealing device, comprising a first connecting pipe 1. The right part of the outer surface of the first connecting pipe 1 is fixedly connected with an anti-disengagement sealing block 2 in an inserted manner. A threaded groove 6 is opened in the right part of the inner wall of the first connecting pipe 1. A sealing gasket groove 7 is opened at the right end of the first connecting pipe 1. A plurality of sealing gaskets 8 are clamped in the sealing gasket groove 7. A slot 9 is opened at the right end of the anti-disengagement sealing block 2. The sealing gasket groove 7 is located inside the slot 9. A second connecting pipe 3 is arranged on the right side of the first connecting pipe 1. The left end of the second connecting pipe 3 is fixedly connected with a threaded through pipe 10. The left end of the threaded through pipe 10 is fixedly connected with a sealing ring body 11. The right part of the outer surface of the threaded through pipe 10 is fixedly connected with a clamping shell 12 in an inserted manner. A pressing plate 13 is fixedly connected to the inner right wall of the clamping shell 12. The clamping shell 12 is located on the left side of the second connecting pipe 3. The outer surface of the second connecting pipe 3 is movably connected with a pressing plate 4. A through circular hole 14 is opened in the middle of the left end of the pressing plate 4. Six screws 5 are threadedly and movably connected to the left end of the pressing plate 4 in an annular array.

[0033] In this embodiment, the threaded through pipe 10 is detachably connected to the first connecting pipe 1 through the threaded groove 6. The threaded through pipe 10 is located inside the first connecting pipe 1. The clamping shell 12 is inserted into the slot 9. The positions of the pressing plate 13 and the plurality of sealing gaskets 8 correspond to each other. The pressing plate 4 is movably connected to the second connecting pipe 3 through the circular hole 14. The right end face of the anti-disengagement sealing block 2 abuts against the left end face of the pressing plate 4 but is not fixed.

[0034] Through the above scheme: Rotate and insert the threaded through pipe 10 of the second connecting pipe 3 into the first connecting pipe 1, so that the sealing ring body 11 on the threaded through pipe 10 abuts tightly against the inside of the first connecting pipe 1. At the same time, the clamping shell 12 is inserted into the slot 9. Then, put the pressing plate 4 on the second connecting pipe 3 through the circular hole 14, and make the left end face of the pressing plate 4 abut against the right end face of the anti-disengagement sealing block 2, which can make the sealing ring body 11 press more tightly against the inner wall of the first connecting pipe 1 to achieve sealing. At the same time, the cooperation between the clamping shell 12 and the slot 9 can prevent the threaded through pipe 10 from loosening or falling off under the action of pressure, thus facilitating quick installation by personnel.

[0035] The right end of the anti-disengagement sealing block 2 is provided with threaded holes adapted to the six screws 5. The pressing plate 4 is threadedly and movably connected to the anti-disengagement sealing block 2 through the six screws 5.

[0036] Through the above solution: Six screws 5 are passed through the pressing plate 4 and screwed into the threaded holes at the right end of the anti-loosening sealing block 2. As the screws 5 are gradually tightened, the threaded fit between the screws 5 and the threaded holes will generate a pulling force, causing the pressing plate 4 to tightly press against the anti-loosening sealing block 2. At the same time, the anti-loosening sealing block 2 will also exert a rightward pressure on the threaded through pipe 10, ensuring that the threaded through pipe 10 is tightly and stably connected to the first connecting pipe 1, and causing multiple sealing washers 8 to be fully compressed, guaranteeing a good sealing effect. When disassembly is required, the screws 5 can be loosened in the reverse direction to separate the components. In this way, through the threaded movable connection between the screws 5 and the anti-loosening sealing block 2 and the action on each component, reliable connection and sealing are achieved, and at the same time, it also has a certain degree of dismountability, which is convenient for maintenance and replacement.

[0037] It should be noted that the present utility model is a high-pressure pipeline sealing device. During use, first, the threaded through pipe 10 of the second connecting pipe 3 is screwed into the threaded groove 6 of the first connecting pipe 1. As the threaded through pipe 10 is screwed in, the sealing ring body 11 at its left end will contact and gradually press against the inner wall of the first connecting pipe 1 to achieve preliminary sealing. At the same time, the shell 12 on the threaded through pipe 10 will be inserted into the slot 9 at the right end of the anti-loosening sealing block 2, which can play a certain positioning and anti-loosening role. Then, the pressing plate 4 is sleeved on the second connecting pipe 3 through the round hole 14, and the left end face of the pressing plate 4 is tightly abutted against the right end face of the anti-loosening sealing block 2. At this time, the pressing plate 4 and the anti-loosening sealing block 2 are connected by six screws 5 through threaded movement and tightened. As the screws 5 are tightened, the pressing plate 4 will exert a rightward pressure on the second connecting pipe 3, so that the threaded through pipe 10 is further tightly connected to the first connecting pipe 1, strengthening the sealing effect. At the same time, the shell 12 and the slot 9 are combined more tightly to prevent loosening, and the abutting plate 13 on the right inner wall of the shell 12 will be in close contact with multiple sealing washers 8, further enhancing the sealing performance. When disassembly is required, only the six screws 5 need to be loosened in the reverse direction to separate the pressing plate 4 from the anti-loosening sealing block 2, and then the threaded through pipe 10 can be screwed out of the first connecting pipe 1 to achieve disassembly. Thus, through the mutual cooperation and action of each component, the functions of reliable sealing, stable connection and dismountability of the high-pressure pipeline connection are achieved.

[0038] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-pressure pipeline sealing device, comprising a first connecting pipe (1), characterized in that: On the right part of the outer surface of the first connecting pipe (1), an anti - detachment sealing block (2) is fixedly connected in an inserted manner. On the right part of the inner wall of the first connecting pipe (1), a threaded groove (6) is formed. On the right end of the first connecting pipe (1), a sealing gasket groove (7) is formed. A plurality of sealing gaskets (8) are clamped in the sealing gasket groove (7). On the right end of the anti - detachment sealing block (2), a slot (9) is formed. The sealing gasket groove (7) is located inside the slot (9). On the right side of the first connecting pipe (1), a second connecting pipe (3) is arranged. On the left end of the second connecting pipe (3), a threaded through - pipe (10) is fixedly connected. On the left end of the threaded through - pipe (10), a sealing ring body (11) is fixedly connected. On the right part of the outer surface of the threaded through - pipe (10), a clamping shell (12) is fixedly connected in an inserted manner. On the right inner wall of the clamping shell (12), a pressing plate (13) is fixedly connected. The clamping shell (12) is located on the left side of the second connecting pipe (3). On the outer surface of the second connecting pipe (3), a pressing plate (4) is movably connected. In the middle of the left end of the pressing plate (4), a through - hole (14) is formed. Six screws (5) are threadedly and movably connected in a circular array at the left end of the pressing plate (4).

2. The high-pressure pipeline sealing device according to claim 1, characterized in that: The threaded through - pipe (10) is detachably connected to the first connecting pipe (1) through the threaded groove (6), and the threaded through - pipe (10) is located inside the first connecting pipe (1).

3. The high-pressure pipeline sealing device according to claim 1, characterized in that: The clamping shell (12) is inserted into the slot (9).

4. The high-pressure pipeline sealing device according to claim 1, characterized in that: The position of the pressing plate (13) corresponds to that of the plurality of sealing gaskets (8).

5. The sealing device adapted to a high-pressure pipeline according to claim 1, characterized in that: The pressing plate (4) is movably connected to the second connecting pipe (3) through the through - hole (14), and the right end face of the anti - detachment sealing block (2) abuts against the left end face of the pressing plate (4) but is not fixed.

6. The high-pressure pipeline sealing device according to claim 1, characterized in that: On the right end of the anti - detachment sealing block (2), a threaded hole adapted to the six screws (5) is formed.

7. The sealing device adapted to a high-pressure pipeline according to claim 1, wherein: The pressing plate (4) is threadedly and movably connected to the anti - detachment sealing block (2) through the six screws (5).

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