Rotary joint sealing structure

Abstract

The utility model discloses a rotary joint sealing structure which comprises an inner pipe, one end of the inner pipe is fixedly connected with a threaded connector, one side of the outer portion of the threaded connector is fixedly connected with a first installation ring, and the outer side of the first installation ring is fixedly connected with a first protection seat. The outer side of the first protection seat is fixedly connected with a second installation ring, the inner side of the first protection seat is fixedly connected with a reset spring, one end of the reset spring is fixedly connected with an installation seat, and one side of the installation seat is fixedly connected with a first limiting plate and a second limiting plate. A clamping block fixed to one side of a sealing gasket is clamped into a clamping groove between a first limiting plate and a second limiting plate in a clamping connection mode, when the rotating structure rotates and is fixed, the sealing gasket is stressed to extrude towards the direction of a first protection base, and therefore a reset spring retracts in a spring mounting groove under the action force; and the mounting seat moves towards the direction of the first protection seat.

Description

Technical Field

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

[0002] A rotary joint is a connecting device used to input oil from a static oil pipe to a rotating machine part. The general structure of an existing rotary joint includes an inner shaft and an outer shaft. Both the inner shaft and the outer shaft are through-core structures. The inner shaft is sleeved outside the outer shaft. The inner shaft and the outer shaft are sealed by a sealing ring sleeved outside the inner shaft and embedded in the outer shaft. At present, rotary joints are often needed in coal chemical industry, petrochemical slag coolers, dryers and other equipment.

[0003] Some existing rotary joints, after being used for a period of time, may have unreliable sealing structures due to wear and tear, which may easily lead to leakage. If they cannot be repaired and replaced in time, the sealing effect of the structure may deteriorate, thus shortening the service life of the rotary joint. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a rotary joint sealing structure to solve the problem that some existing rotary joints proposed in the above background technology become unreliable in sealing structure due to wear after being used for a period of time and are prone to leakage. If they cannot be repaired and replaced in time, the structural sealing effect will easily deteriorate, affecting the service life of the rotary joint.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary joint sealing structure, comprising an inner tube, one end of the inner tube is fixedly connected with a threaded connection port, an outer side of the threaded connection port is fixedly connected with a first mounting ring, an outer side of the first mounting ring is fixedly connected with a first protective seat, an outer side of the first protective seat is fixedly connected with a second mounting ring, an inner side of the first protective seat is fixedly connected with a return spring, one end of the return spring is fixedly connected with a mounting seat, one side of the mounting seat is respectively fixedly connected with a first limit plate and a second limit plate, one side of the first limit plate and the second limit plate is provided with a slot, the inner side of the slot is snap-fitted with a block, and one side of the block is fixedly connected with a sealing gasket.

[0006] Preferably, a spring mounting groove is provided on one side of the first mounting ring, the first protective seat and the second mounting ring.

[0007] Preferably, a second protective seat is fixedly connected to the outer side of the other end of the return spring.

[0008] Preferably, the outer side of the inner tube is fixedly connected to the outer side of the inner tube.

[0009] Preferably, two threaded connection ports are symmetrically arranged, and a plurality of return springs are symmetrically arranged.

[0010] Preferably, the outer surface of the return spring is coated with a corrosion-resistant layer.

[0011] Preferably, the first limiting plate is configured to be L-shaped.

[0012] Preferably, the sealing gasket is made of wear-resistant material.

[0013] Compared with the prior art, the utility model provides a rotary joint sealing structure having the following features:

[0014] Beneficial effects:

[0015] 1. The utility model provides a return spring. After long-term use, the connecting part of the rotating joint will be worn out due to friction. If it is not replaced in time, it is easy to affect the sealing effect of the structure. To avoid this situation, a return spring is provided. When in use, the clamping block fixed on one side of the sealing gasket is clamped into the clamping groove between the first limit plate and the second limit plate by a clamping connection. When the rotating structure is rotated and fixed, the sealing gasket is squeezed in the direction of the first protective seat by the force, so that the return spring is contracted in the spring mounting groove by the force, so that the mounting seat moves in the direction of the first protective seat. If one end of the sealing gasket is worn out after long-term use, the return spring pushes the mounting seat and drives the clamping block and the sealing gasket inside the spring mounting groove to fill the position. The operation is simple and convenient, and the situation that the seal cannot be replaced in time is avoided.

[0016] 2. The utility model provides the second protective seat, and the first protective seat and the second protective seat can protect the two ends of the reset spring, thereby preventing the two ends of the reset spring from breaking due to long-term use, and can extend its service life to a certain extent.

[0017] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model has a scientific and reasonable structure, is safe and convenient to use, and provides great help to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the shaft side structure of a rotary joint sealing structure proposed by the utility model;

[0020] Figure 2This is a front structural schematic diagram of a rotary joint sealing structure proposed by the utility model;

[0021] Figure 3 A schematic diagram of a vertical cross-section structure of a rotary joint sealing structure proposed by the utility model;

[0022] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at point A;

[0023] Figure 5 This is a front vertical cross-sectional structural schematic diagram of a rotary joint sealing structure proposed by the utility model;

[0024] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at B;

[0025] Figure 7 This is a side structural schematic diagram of a rotary joint sealing structure proposed by the utility model;

[0026] In the figure: inner tube 1, threaded connection port 2, first mounting ring 3, outer tube 4, return spring 5, first protective seat 6, second protective seat 7, mounting seat 8, slot 9, first limit plate 10, block 11, sealing gasket 12, second limit plate 13, second mounting ring 14, spring mounting slot 15. DETAILED DESCRIPTION

[0027] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0028] See also Figure 1-7The utility model provides a technical solution: a rotary joint sealing structure, comprising an inner tube 1, one end of the inner tube 1 is fixedly connected with a threaded connection port 2, an outer side of the threaded connection port 2 is fixedly connected with a first mounting ring 3, an outer side of the first mounting ring 3 is fixedly connected with a first protective seat 6, an outer side of the first protective seat 6 is fixedly connected with a second mounting ring 14, an inner side of the first protective seat 6 is fixedly connected with a return spring 5, one end of the return spring 5 is fixedly connected with a mounting seat 8, one side of the mounting seat 8 is respectively fixedly connected with a first limiting plate 10 and a second limiting plate 13, one side of the first limiting plate 10 and the second limiting plate 13 is provided with a card slot 9, the internal card slot 9 is connected with a card block 11, and one side of the card block 11 is fixedly connected with a sealing gasket 12. After long-term use, the connecting part of the rotary joint is subjected to friction and wear will occur The phenomenon of damage will easily affect the sealing effect of the structure if it is not replaced in time. To avoid this situation, a reset spring 5 is provided. When in use, the block 11 fixed on one side of the sealing gasket 12 is clamped into the clamping groove 9 between the first limit plate 10 and the second limit plate 13 through a clamping connection. When the rotating structure is rotated and fixed, the sealing gasket 12 is squeezed in the direction of the first protective seat 6 by the force, so that the reset spring 5 is subjected to the force to shrink in the spring mounting groove 15, so that the mounting seat 8 moves in the direction of the first protective seat 6. If one end of the sealing gasket 12 is worn out after long-term use, the reset spring 5 pushes the mounting seat 8 and drives the block 11 and the sealing gasket 12 inside the spring mounting groove 15 to fill the position. The operation is simple and convenient, and the situation that the seal cannot be replaced in time is avoided.

[0029] In the present invention, preferably, a spring installation groove 15 is provided on one side of the first installation ring 3 , the first protection seat 6 and the second installation ring 14 .

[0030] In the utility model, preferably, the outer side of the other end of the reset spring 5 is fixedly connected with a second protective seat 7. The first protective seat 6 and the second protective seat 7 can protect the two ends of the reset spring 5 to prevent the two ends of the reset spring 5 from breaking due to long-term use, thereby extending its service life to a certain extent.

[0031] In the present invention, preferably, the outer side of the inner tube 1 is fixedly connected with the outer tube 4 .

[0032] In the present invention, preferably, two threaded connection ports 2 are symmetrically arranged, and a plurality of return springs 5 ​​are symmetrically arranged.

[0033] In the present invention, preferably, the outer surface of the return spring 5 is coated with a corrosion-resistant layer, which can extend the service life of the return spring 5 and prevent it from rusting due to oxidation corrosion, thereby causing adverse conditions such as jamming during use.

[0034] In the present invention, preferably, the first limiting plate 10 is configured to be L-shaped to facilitate the engagement of the clamping block 11 .

[0035] In the present invention, preferably, the sealing gasket 12 is made of wear-resistant material, which can extend the service life of the sealing gasket 12 to a certain extent and prevent the sealing gasket 12 from being worn and causing leakage at the structural connection.

[0036] The working principle and use process of the utility model are as follows: when in use, by setting a reset spring 5, the block 11 fixed on one side of the sealing gasket 12 is clamped into the clamping groove 9 between the first limit plate 10 and the second limit plate 13 by a clamping connection. When the rotating structure is rotated and fixed, the sealing gasket 12 is squeezed toward the first protective seat 6 by the force, so that the reset spring 5 is contracted in the spring mounting groove 15 by the force, so that the mounting seat 8 moves toward the first protective seat 6. If one end of the sealing gasket 12 is worn after a long period of use, the reset spring 5 pushes the mounting seat 8 and drives the block 11 and the sealing gasket 12 inside the spring mounting groove 15 to fill the position in time.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rotary joint sealing structure, comprising an inner tube (1), characterized in that: One end of the inner tube (1) is fixedly connected to a threaded connection port (2), an outer side of the threaded connection port (2) is fixedly connected to a first mounting ring (3), an outer side of the first mounting ring (3) is fixedly connected to a first protective seat (6), an outer side of the first protective seat (6) is fixedly connected to a second mounting ring (14), an inner side of the first protective seat (6) is fixedly connected to a return spring (5), one end of the return spring (5) is fixedly connected to a mounting seat (8), one side of the mounting seat (8) is respectively fixedly connected to a first limit plate (10) and a second limit plate (13), one side of the first limit plate (10) and the second limit plate (13) is provided with a clamping groove (9), the interior of the clamping groove (9) is clamped and connected to a clamping block (11), and one side of the clamping block (11) is fixedly connected to a sealing gasket (12).

2. A rotary joint sealing structure according to claim 1, characterized in that: A spring installation groove (15) is provided on one side of the first installation ring (3), the first protection seat (6) and the second installation ring (14).

3. A rotary joint sealing structure according to claim 1, characterized in that: The outer side of the other end of the return spring (5) is fixedly connected with a second protection seat (7).

4. A rotary joint sealing structure according to claim 1, characterized in that: The outer side of the inner tube (1) is fixedly connected to an outer tube (4).

5. The rotary joint sealing structure according to claim 1, characterized in that: The threaded connection ports (2) are symmetrically arranged with two, and the return springs (5) are symmetrically arranged with a plurality.

6. A rotary joint sealing structure according to claim 1, characterized in that: The outer surface of the return spring (5) is coated with a corrosion-resistant layer.

7. The rotary joint sealing structure according to claim 1, characterized in that: The first limiting plate (10) is configured to be in an L shape.

8. The rotary joint sealing structure according to claim 1, characterized in that: The sealing pad (12) is made of a wear-resistant material.

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