High-temperature-resistant and high-pressure-resistant funnel splayed conical sealing device

Abstract

The utility model discloses a high temperature and high pressure resistant funnel splayed conical sealing device which comprises an upper container, a lower container, a connecting pipe and a stretching rod, the connecting pipe is arranged between the upper container and the lower container, the upper end of the connecting pipe is communicated with the upper container, and the lower end of the connecting pipe is communicated with the stretching rod. An upper sealing mechanism is arranged between the upper end of the connecting pipe and the upper container, the lower end of the connecting pipe is communicated with the lower container, a lower sealing mechanism is arranged between the lower end of the connecting pipe and the lower container, the stretching rod is arranged between the upper container and the lower container, an upper extrusion nut is installed at the upper end of the stretching rod, and a lower extrusion nut is installed at the lower end of the stretching rod. And a lower extrusion nut is mounted at the lower end of the stretching rod. According to the utility model, the double-layer sealing ring is matched with the stretching and extruding mechanism to realize the sealing of the joint, so that the sealing is tight and firm.

Description

Technical Field

[0001] The utility model discloses a sealing device, in particular to a high-temperature and high-pressure resistant funnel eight-shaped cone-shaped sealing device. Background Art

[0002] A fluid seal is a device used to control the flow of liquid or gas, typically designed to prevent fluid leakage from a mechanical system or to maintain pressure within the system. These devices are widely used in industrial, automotive, aerospace, and other various mechanical equipment.

[0003] Common fluid sealing devices usually include: (1) O-rings made of soft rubber or other elastic materials; (2) mechanical seals consisting of rotating and fixed parts; (3) sealing devices in hydraulic systems such as piston seals and rod seals; (4) sealing devices used in pneumatic systems such as cylinder seals and valve seals, etc. The material selection of the sealing device depends on the application requirements, and usually includes rubber, polyurethane, polytetrafluoroethylene (PTFE), metal and alloys.

[0004] High-temperature and high-pressure sealing devices are specialized equipment designed to maintain effective sealing under extreme conditions (high pressure and high temperature), meeting the sealing requirements of certain extreme environments. Currently, conventional sealing devices are prone to sealing inadequacies in high-temperature and high-pressure environments, resulting in leakage and seepage, or loosening of the seal when subjected to temperature and pressure changes. Summary of the Invention

[0005] In response to the above-mentioned shortcomings of the sealing devices in the prior art that are prone to causing insufficient sealing when used in high temperature and high pressure environments, the utility model provides a high temperature and high pressure resistant funnel eight-shaped cone-shaped sealing device, which achieves sealing at the connection through a double-layer sealing ring in conjunction with a stretching and extrusion mechanism, making the seal tight and reliable.

[0006] The utility model adopts the following technical solution to solve its technical problems: a high-temperature and high-pressure resistant funnel eight-shaped cone-shaped sealing device, the sealing device comprising an upper containing container, a lower containing container, a connecting pipe and a stretching rod, the connecting pipe is arranged between the upper containing container and the lower containing container, the upper end of the connecting pipe is connected to the upper containing container, an upper sealing mechanism is arranged between the upper end of the connecting pipe and the upper containing container, the lower end of the connecting pipe is connected to the lower containing container, a lower sealing mechanism is arranged between the lower end of the connecting pipe and the lower containing container, the stretching rod is arranged between the upper containing container and the lower containing container, an upper extrusion nut is installed at the upper end of the stretching rod, and a lower extrusion nut is installed at the lower end of the stretching rod.

[0007] The technical solution adopted by the utility model to solve its technical problems further includes:

[0008] An upper container joint is fixedly provided on the upper container, a lower container joint is fixedly provided on the lower container, and a connecting pipe is connected between the upper container joint and the lower container joint.

[0009] The upper sealing mechanism includes an upper sealing nut, an upper O-ring and a funnel-shaped upper conical sealing ring. The upper O-ring is arranged between the upper end surface of the connecting pipe and the bottom surface of the upper container joint. The funnel-shaped upper conical sealing ring is sleeved on the end of the connecting pipe. The funnel-shaped upper conical sealing ring is arranged between the outer wall of the end of the connecting pipe and the inner side wall of the upper container joint. The upper sealing nut is sleeved on the connecting pipe, and the upper sealing nut is installed on the upper container joint.

[0010] The lower sealing mechanism includes a lower sealing nut, a lower O-ring and a funnel-shaped eight-cone lower conical sealing ring. The lower O-ring is arranged between the lower end surface of the connecting pipe and the bottom surface of the lower container joint. The funnel-shaped eight-cone lower conical sealing ring is sleeved on the end of the connecting pipe. The funnel-shaped eight-cone lower conical sealing ring is arranged between the outer wall of the end of the connecting pipe and the inner side wall of the lower container joint. The lower sealing nut is sleeved under the connecting pipe, and the lower sealing nut is installed on the lower container joint.

[0011] The angle between the inclined surface of the funnel-shaped upper conical sealing ring and / or the funnel-shaped lower conical sealing ring and the central axis is 15° to 55°.

[0012] There are three connecting pipes, which are arranged in parallel.

[0013] An upper washer is arranged between the upper extrusion nut and the upper containing container. The upper washer comprises an upper flat washer and an upper spring washer. The upper flat washer and the upper spring washer are stacked and sleeved on the stretching rod.

[0014] A lower washer is provided between the lower extrusion nut and the lower containing container. The lower washer comprises a lower flat washer and a lower spring washer. The lower flat washer and the lower spring washer are stacked and sleeved on the stretching rod.

[0015] There are four stretching rods, which are arranged corresponding to the four corners of the upper container and the lower container.

[0016] The bottom of the lower container is fixedly provided with supporting feet.

[0017] The beneficial effect of the utility model is that the utility model realizes the sealing of the connection by cooperating with the stretching and extruding mechanism with the double-layer sealing ring, so that the sealing is tight and firm.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural diagram of the utility model.

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model.

[0021] Figure 3 for Figure 2 The circled area is an enlarged structural diagram.

[0022] Figure 4 This is a schematic diagram of the structure of the utility model in a front-facing exploded state.

[0023] Figure 5 This is a schematic diagram of the structure of the utility model in a three-dimensional exploded state.

[0024] In the figure, 1-upper container, 2-lower container, 3-support foot, 4-upper container joint, 5-lower container joint, 6-upper sealing nut, 7-lower sealing nut, 8-upper O-ring, 9-lower O-ring, 10-upper conical sealing ring of funnel eight-shaped cone, 11-lower conical sealing ring of funnel eight-shaped cone, 12-connecting pipe, 13-upper extrusion nut, 14-lower extrusion nut, 15-upper flat washer, 16-lower flat washer, 17-upper spring washer, 18-lower spring washer, 19-stretching rod. DETAILED DESCRIPTION

[0025] This embodiment is a preferred implementation of the present utility model. Other embodiments whose principles and basic structures are the same or similar to those of this embodiment are within the protection scope of the present utility model.

[0026] Please combine the attached Figure 1 To the attached Figure 5 The utility model mainly includes an upper containing container 1, a lower containing container 2, a connecting pipe 12 and a stretching rod 19. The connecting pipe 12 is arranged between the upper containing container 1 and the lower containing container 2. The upper end of the connecting pipe 12 is connected to the upper containing container 1. An upper sealing mechanism is provided between the upper end of the connecting pipe 12 and the upper containing container 1. The lower end of the connecting pipe 12 is connected to the lower containing container 2. A lower sealing mechanism is provided between the lower end of the connecting pipe 12 and the lower containing container 2. The stretching rod 19 is arranged between the upper containing container 1 and the lower containing container 2. An upper extrusion nut 13 is installed at the upper end of the stretching rod 19, and a lower extrusion nut 14 is installed at the lower end of the stretching rod 19.

[0027] In this embodiment, an upper container joint 4 is fixedly provided on the upper container 1 , a lower container joint 5 is fixedly provided on the lower container 2 , and a connecting pipe 12 is connected between the upper container joint 4 and the lower container joint 5 .

[0028] In this embodiment, the upper sealing mechanism includes an upper sealing nut 6, an upper O-ring 8 and a funnel-shaped upper conical sealing ring 10. The upper O-ring 8 is arranged between the upper end face of the connecting pipe 12 and the bottom surface of the upper container joint 4 to achieve end face sealing. The funnel-shaped upper conical sealing ring 10 is sleeved on the end of the connecting pipe 12. The funnel-shaped upper conical sealing ring 10 is arranged between the outer wall of the end of the connecting pipe 12 and the inner side wall of the upper container joint 4. The upper sealing nut 6 is sleeved on the connecting pipe 12, and the upper sealing nut 6 is installed on the upper container joint 4. The funnel-shaped upper conical sealing ring 10 is squeezed by the upper sealing nut 6 to cause it to deform, so as to achieve sealing between the outer wall of the end of the connecting pipe 12 and the inner side wall of the upper container joint 4, and it can pass through conveniently.

[0029] In this embodiment, the lower sealing mechanism includes a lower sealing nut 7, a lower O-ring 9 and a funnel-shaped eight-cone lower conical sealing ring 11. The lower O-ring 9 is arranged between the lower end face of the connecting pipe 12 and the bottom surface of the lower container joint 5 to achieve end face sealing. The funnel-shaped eight-cone lower conical sealing ring 11 is sleeved on the end of the connecting pipe 12. The funnel-shaped eight-cone lower conical sealing ring 11 is arranged between the outer wall of the end of the connecting pipe 12 and the inner side wall of the lower container joint 5. The lower sealing nut 7 is sleeved under the connecting pipe 12, and the lower sealing nut 7 is installed on the lower container joint 5. The funnel-shaped eight-cone lower conical sealing ring 11 is squeezed by the lower sealing nut 7 to cause it to deform to achieve sealing between the outer wall of the end of the connecting pipe 12 and the inner side wall of the lower container joint 5.

[0030] In this embodiment, the angle between the inclined surfaces of the funnel-shaped upper tapered sealing ring 10 and the funnel-shaped lower tapered sealing ring 11 and the central axis is 15° to 55°, achieving the best sealing effect. By tightening or loosening the upper sealing nut 6 and the lower sealing nut 7, the degree of deformation of the funnel-shaped upper tapered sealing ring 10 and the funnel-shaped lower tapered sealing ring 11 can be changed, thereby effectively ensuring their sealing effect.

[0031] In this embodiment, three connecting pipes 12 are provided, and the three connecting pipes 12 are arranged in parallel. Correspondingly, three upper sealing mechanisms and three lower sealing mechanisms are also provided. In specific implementation, other numbers of connecting pipes can also be selected according to actual needs.

[0032] In this embodiment, an upper washer is provided between the upper extrusion nut 13 and the upper containing container 1, and the upper washer includes an upper flat washer 15 and an upper spring washer 17, which are stacked on the stretching rod 19; a lower washer is provided between the lower extrusion nut 14 and the lower containing container 2, and the lower washer includes a lower flat washer 16 and a lower spring washer 18, which are stacked on the stretching rod 19. By tightening or loosening the upper extrusion nut 13 and the lower extrusion nut 14, the distance between the upper containing container 1 and the lower containing container 2 can be compressed or relaxed to adjust the degree of deformation of the upper O-ring 8 and the lower O-ring 9, thereby effectively ensuring their sealing effect.

[0033] In this embodiment, four stretching rods 19 are provided, which are arranged corresponding to the four corners of the upper container 1 and the lower container 2, so that the hand can be more balanced during adjustment.

[0034] In this embodiment, a support foot 3 is fixedly installed on the bottom of the lower container 2, which makes the utility model more convenient to install.

[0035] The utility model structure can be widely applied to various high-temperature and high-pressure resistant funnel eight-shaped cone-shaped sealing devices that need to be sealed.

[0036] The utility model realizes the sealing of the connection by cooperating the double-layer sealing ring with the stretching and extruding mechanism, so that the sealing is tight and reliable.

Claims

1. A high temperature and high pressure resistant funnel eight-shaped cone sealing device, characterized by: The sealing device comprises an upper container (1), a lower container (2), a connecting pipe (12) and a stretching rod (19), wherein the connecting pipe (12) is arranged between the upper container (1) and the lower container (2), the upper end of the connecting pipe (12) is connected to the upper container (1), an upper sealing mechanism is arranged between the upper end of the connecting pipe (12) and the upper container (1), the lower end of the connecting pipe (12) is connected to the lower container (2), a lower sealing mechanism is arranged between the lower end of the connecting pipe (12) and the lower container (2), the stretching rod (19) is arranged between the upper container (1) and the lower container (2), an upper extrusion nut (13) is installed at the upper end of the stretching rod (19), and a lower extrusion nut (14) is installed at the lower end of the stretching rod (19).

2. The high temperature and high pressure resistant funnel eight-shaped cone sealing device according to claim 1, characterized in that: An upper container joint (4) is fixedly provided on the upper container (1), a lower container joint (5) is fixedly provided on the lower container (2), and a connecting pipe (12) is connected between the upper container joint (4) and the lower container joint (5).

3. The high temperature and high pressure resistant funnel eight-shaped cone sealing device according to claim 1, characterized in that: The upper sealing mechanism comprises an upper sealing nut (6), an upper O-ring (8) and a funnel-shaped upper conical sealing ring (10), wherein the upper O-ring (8) is arranged between the upper end surface of the connecting pipe (12) and the bottom surface of the upper container joint (4), the funnel-shaped upper conical sealing ring (10) is sleeved on the end of the connecting pipe (12), the funnel-shaped upper conical sealing ring (10) is arranged between the outer wall of the end of the connecting pipe (12) and the inner wall of the upper container joint (4), the upper sealing nut (6) is sleeved on the connecting pipe (12), and the upper sealing nut (6) is installed on the upper container joint (4).

4. The high temperature and high pressure resistant funnel eight-shaped cone sealing device according to claim 1, characterized in that: The lower sealing mechanism comprises a lower sealing nut (7), a lower O-ring (9) and a funnel-shaped eight-shaped cone-shaped lower conical sealing ring (11), wherein the lower O-ring (9) is arranged between the lower end surface of the connecting pipe (12) and the bottom surface of the lower container joint (5), the funnel-shaped eight-shaped cone-shaped lower conical sealing ring (11) is sleeved on the end of the connecting pipe (12), and the funnel-shaped eight-shaped cone-shaped lower conical sealing ring (11) is arranged between the outer wall of the end of the connecting pipe (12) and the inner wall of the lower container joint (5), the lower sealing nut (7) is sleeved under the connecting pipe (12), and the lower sealing nut (7) is installed on the lower container joint (5).

5. The high temperature and high pressure resistant funnel eight-shaped cone sealing device according to claim 3, characterized in that: The angle between the inclined surface of the funnel-shaped upper conical sealing ring (10) and the central axis is 15° to 55°.

6. The high temperature and high pressure resistant funnel eight-shaped cone sealing device according to claim 1, characterized in that: There are three connecting pipes (12), and the three connecting pipes (12) are arranged in parallel.

7. The high temperature and high pressure resistant funnel eight-shaped cone sealing device according to claim 1, characterized in that: An upper washer is provided between the upper extrusion nut (13) and the upper container (1), and the upper washer comprises an upper flat washer (15) and an upper spring washer (17). The upper flat washer (15) and the upper spring washer (17) are stacked and sleeved on the stretching rod (19).

8. The high temperature and high pressure resistant funnel eight-shaped cone sealing device according to claim 1, characterized in that: A lower washer is provided between the lower extrusion nut (14) and the lower container (2), and the lower washer comprises a lower flat washer (16) and a lower spring washer (18). The lower flat washer (16) and the lower spring washer (18) are stacked and sleeved on the stretching rod (19).

9. The high temperature and high pressure resistant funnel eight-shaped cone sealing device according to claim 1, characterized in that: Four stretching rods (19) are provided, which are arranged at the four corners corresponding to the upper container (1) and the lower container (2).

10. The high temperature and high pressure resistant funnel eight-shaped cone-shaped sealing device according to claim 1, characterized in that: A supporting foot (3) is fixedly installed on the bottom of the lower container (2).

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