Annular hard sealing movable joint

Abstract

The utility model discloses an annular hard sealing movable joint which comprises a threaded guide pipe, an outer protruding ring is fixedly arranged on the outer wall of one end of a clamping guide pipe, an inner protruding ring matched with the outer protruding ring is fixedly arranged on the inner wall of one end of a locking sleeve, and the inner wall of the other end of the locking sleeve is connected with the outer wall of one end of the threaded guide pipe through threads. A hard sealing ring is fixedly arranged at the end of the threaded guide pipe in a sealed mode, and a groove matched with the hard sealing ring in a sealed mode is formed in the end of the clamping guide pipe. Or a hard sealing ring is fixedly arranged at the end of the clamping guide pipe in a sealing mode, a groove matched with the hard sealing ring in a sealing mode is formed in the end of the threaded guide pipe, and the end of the threaded guide pipe does not make contact with the end of the clamping guide pipe. The threaded guide pipe and the clamping guide pipe are directly connected in a sealed mode through the hard sealing ring, a rubber sealing ring does not need to be arranged between the threaded guide pipe and the clamping guide pipe, the situation that the rubber sealing ring is frequently replaced does not exist, the conveying cost is effectively reduced, and the situation of leakage does not occur in the conveying process.

Description

Technical Field

[0001] This utility model relates to the field of union technology, and in particular to an annular hard-seal union. Background Technology

[0002] In existing technologies, unions typically use rubber sealing rings for sealing. However, during media transportation, some media are transported at high temperatures. Over long periods of time, the rubber sealing rings can become damaged, leading to leaks at the union. This necessitates frequent replacement of the rubber sealing rings, which increases transportation costs. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an annular hard-seal joint.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A ring-shaped hard-seal union includes a threaded conduit, a clamping conduit, a locking sleeve, and a hard-seal ring. An outer protruding ring is fixedly disposed on the outer wall of one end of the clamping conduit. An inner protruding ring that mates with the outer protruding ring is fixedly disposed on the inner wall of one end of the locking sleeve. The inner wall of the other end of the locking sleeve is threadedly connected to the outer wall of one end of the threaded conduit. The hard-seal ring is fixedly and sealingly disposed on the end of the threaded conduit, and a groove that seals with the hard-seal ring is provided on the end of the clamping conduit; or, the hard-seal ring is fixedly and sealingly disposed on the end of the clamping conduit, and a groove that seals with the hard-seal ring is provided on the end of the threaded conduit, wherein the end of the threaded conduit does not contact the end of the clamping conduit.

[0006] Furthermore, the hard sealing ring is integrally formed with the threaded conduit, or the hard sealing ring is integrally formed with the clamping conduit.

[0007] Furthermore, the threaded conduit, the clamping conduit, the locking sleeve, and the hard sealing ring are coaxially arranged.

[0008] Furthermore, a limiting groove is coaxially provided on the end of the threaded conduit, and a limiting end that mates with the limiting groove is coaxially provided on the end of the clamping conduit; or a limiting groove is coaxially provided on the end of the clamping conduit, and a limiting end that mates with the limiting groove is coaxially provided on the end of the threaded conduit, and the bottom of the limiting groove does not contact the end of the limiting end.

[0009] Furthermore, a first force-bearing ring is fixedly provided on the outer wall of the threaded conduit, and a second force-bearing ring is fixedly provided on the outer wall of the locking sleeve.

[0010] Furthermore, the groove has a V-shaped cross-section, and the end cross-section of the hard sealing ring is arc-shaped and mates with the groove.

[0011] Furthermore, the wall thickness of the hard sealing ring is 1-5mm, and the radius of the arc is 0.5-3mm.

[0012] Furthermore, the included angle between the two sides of the groove is 60-120°, the depth of the groove is 0.5-4mm, and the width of the groove opening is 2-6mm.

[0013] Furthermore, the roughness of the two sides of the groove is Ra0.8-3.2, and the roughness of the arc-shaped outer side is Ra0.8-3.2.

[0014] The beneficial effects of this utility model are:

[0015] 1) In this technology, the threaded conduit and the clamping conduit are directly sealed by a hard sealing ring, eliminating the need for a rubber sealing ring in the middle. This avoids the need for frequent replacement of rubber sealing rings, effectively reducing transportation costs and preventing leakage during transportation.

[0016] 2) In this technology, the first force ring and the second force ring facilitate quick assembly and disassembly between the threaded conduit and the locking sleeve. Attached Figure Description

[0017] Figure 1 This is a diagram showing the internal connection structure of this annular hard-seal live joint;

[0018] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0019] In the figure, 1-threaded conduit, 2-clamping conduit, 3-locking sleeve, 4-hard sealing ring, 5-outer convex ring, 6-convex ring, 7-groove, 8-limiting groove, 9-limiting end, 10-first force-bearing ring, 11-second force-bearing ring. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] See Figures 1-2 This utility model provides a technical solution:

[0022] A ring-shaped hard-seal union includes a threaded conduit 1, a clamping conduit 2, a locking sleeve 3, and a hard-seal ring 4. An outer protruding ring 5 is fixedly disposed on the outer wall of one end of the clamping conduit 2. An inner protruding ring 6, which mates with the outer protruding ring 5, is fixedly disposed on the inner wall of one end of the locking sleeve 3. The inner wall of the other end of the locking sleeve 3 is threadedly connected to the outer wall of one end of the threaded conduit 1. The hard-seal ring 4 is fixedly and sealed on the end of the threaded conduit 1, and a groove 7, which seals with the hard-seal ring 4, is provided on the end of the clamping conduit 2. Alternatively, the hard-seal ring 4 is fixedly and sealed on the end of the clamping conduit 2, and the groove 7, which seals with the hard-seal ring 4, is provided on the end of the threaded conduit 1, without contact between the end of the threaded conduit 1 and the end of the clamping conduit 2. The threaded conduit 1 and the clamping conduit 2 are detachably connected via the locking sleeve 3. The outer protruding ring 5 and the clamping conduit 2 are integrally formed, and the inner protruding ring 6 and the locking sleeve 3 are integrally formed. The threaded conduit 1 and the clamping conduit 2 are sealed together by the sealing fit between the groove 7 and the hard sealing ring 4. To ensure a better sealing effect of the hard sealing ring 4, the ends of the threaded conduit 1 and the clamping conduit 2 do not contact each other. Since only the threaded conduit 1 and the clamping conduit 2 need to be sealed together, it is feasible for the hard sealing ring 4 to be fixed to the end of either the threaded conduit 1 or the clamping conduit 2.

[0023] In some embodiments, the hard sealing ring 4 is integrally formed with the threaded conduit 1, or the hard sealing ring 4 is integrally formed with the clamping conduit 2. In order to make the connection of the hard sealing ring 4 more secure and the sealing effect better, the hard sealing ring 4 is integrally formed with the threaded conduit 1 or the clamping conduit 2 during the manufacturing process.

[0024] In some embodiments, the threaded conduit 1, the clamping conduit 2, the locking sleeve 3, and the hard sealing ring 4 are coaxially arranged. A limiting groove 8 is coaxially provided on the end of the threaded conduit 1, and a limiting end 9 that mates with the limiting groove 8 is coaxially provided on the end of the clamping conduit 2; or, a limiting groove 8 is coaxially provided on the end of the clamping conduit 2, and a limiting end 9 that mates with the limiting groove 8 is coaxially provided on the end of the threaded conduit 1, with the bottom of the limiting groove 8 not contacting the end of the limiting end 9. To facilitate the connection between the threaded conduit 1 and the clamping conduit 2 without requiring rotation of the mating angle, the threaded conduit 1, the clamping conduit 2, the locking sleeve 3, and the hard sealing ring 4 are coaxially arranged. Simultaneously, to prevent damage to the hard sealing ring 4 due to shear force between the threaded conduit 1 and the clamping conduit 2, thus ensuring a better seal, the limiting groove 8 and the limiting end 9 are provided to give this union better shear resistance.

[0025] In some embodiments, a first force-bearing ring 10 is fixedly disposed on the outer wall of the threaded conduit 1, and a second force-bearing ring 11 is fixedly disposed on the outer wall of the locking sleeve 3. Since the threaded conduit 1 and the locking sleeve 3 are connected by threads, both the first force-bearing ring 10 and the second force-bearing ring 11 are nut structures. The threaded conduit 1 and the first force-bearing ring 10 are integrally formed, and the locking sleeve 3 and the second force-bearing ring 11 are integrally formed.

[0026] In some embodiments, the groove 7 has a V-shaped cross-section, and the end section of the hard sealing ring 4 is arc-shaped and mates with the groove 7. The arc-shaped end of the hard sealing ring 4 contacts both sides of the groove 7, achieving a line seal between the arc and the sides of the groove 7. This provides a better sealing effect and prevents media leakage.

[0027] In some embodiments, the wall thickness of the hard sealing ring 4 is 1-5 mm, and the radius of the arc is 0.5-3 mm. The included angle between the two sides of the groove 7 is 60-120°, the depth of the groove 7 is 0.5-4 mm, and the width of the opening of the groove 7 is 2-6 mm. The roughness of the two sides of the groove 7 is Ra0.8-3.2, and the roughness of the outer side of the arc is Ra0.8-3.2. Specifically, when the wall thickness of the hard sealing ring 4 is 1 mm, the radius of the arc is 0.5 mm, the depth of the groove 7 is 1 mm, and the width of the opening of the groove 7 is 2 mm; when the wall thickness of the hard sealing ring 4 is 4 mm, the radius of the arc is 2.5 mm, the depth of the groove 7 is 4 mm, and the width of the opening of the groove 7 is 6 mm, etc.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "one end", "top", "middle", "other end", "coaxial", "one side", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "setting", "installation", "connection", "fixing", "hinged" and other such terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A ring-shaped hard-seal union, characterized in that: The device includes a threaded conduit (1), a clamping conduit (2), a locking sleeve (3), and a hard sealing ring (4). An outer protruding ring (5) is fixedly provided on the outer wall of one end of the clamping conduit (2). An inner protruding ring (6) that cooperates with the outer protruding ring (5) is fixedly provided on the inner wall of one end of the locking sleeve (3). The inner wall of the other end of the locking sleeve (3) is connected to the outer wall of one end of the threaded conduit (1) by a thread. The hard sealing ring (4) is fixedly and sealed on the end of the threaded conduit (1). A groove (7) that seals and cooperates with the hard sealing ring (4) is provided on the end of the clamping conduit (2); or the hard sealing ring (4) is fixedly and sealed on the end of the clamping conduit (2). A groove (7) that seals and cooperates with the hard sealing ring (4) is provided on the end of the threaded conduit (1), and the end of the threaded conduit (1) does not contact the end of the clamping conduit (2).

2. The annular hard-seal union according to claim 1, characterized in that: The hard sealing ring (4) is integrally formed with the threaded conduit (1), or the hard sealing ring (4) is integrally formed with the clamping conduit (2).

3. A ring-shaped hard-seal union according to claim 1 or 2, characterized in that: The threaded conduit (1), the clamping conduit (2), the locking sleeve (3), and the hard sealing ring (4) are coaxially arranged.

4. The annular hard-seal union according to claim 3, characterized in that: The threaded conduit (1) is coaxially provided with a limiting groove (8) at its end, and the clamping conduit (2) is coaxially provided with a limiting end (9) that cooperates with the limiting groove (8) at its end; or the clamping conduit (2) is coaxially provided with a limiting groove (8) at its end, and the threaded conduit (1) is coaxially provided with a limiting end (9) that cooperates with the limiting groove (8) at its end, and the bottom of the limiting groove (8) does not contact the end of the limiting end (9).

5. A ring-shaped hard-seal union according to claim 1 or 2, characterized in that: A first force-bearing ring (10) is fixedly provided on the outer wall of the threaded conduit (1), and a second force-bearing ring (11) is fixedly provided on the outer wall of the locking sleeve (3).

6. A ring-shaped hard-seal union according to claim 1 or 2, characterized in that: The groove (7) has a V-shaped cross section, and the end cross section of the hard sealing ring (4) is arc-shaped and matches the groove (7).

7. The annular hard-seal union according to claim 6, characterized in that: The wall thickness of the hard sealing ring (4) is 1-5 mm, and the radius of the arc is 0.5-3 mm.

8. The annular hard-seal union according to claim 7, characterized in that: The included angle between the two sides of the groove (7) is 60-120°, the depth of the groove (7) is 0.5-4mm, and the width of the opening of the groove (7) is 2-6mm.

9. A ring-shaped hard-seal union according to claim 6, characterized in that: The roughness of the two sides of the groove (7) is Ra0.8-3.2, and the roughness of the arc-shaped outer side is Ra0.8-3.2.

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