Long-radius high-pressure movable elbow

Abstract

The utility model discloses a long radius high pressure movable elbow, which relates to the movable elbow technical field, and comprises a first joint and a second joint, the first joint is sleeved with a control sleeve, a first spring is connected between the control sleeve and the first joint, a groove is arranged above one side of the first joint, and the second joint is sleeved with a second spring. A second spring is fixed in the groove, one side of the first connector is connected with a limiting strip, and a clamping groove is formed in the outer surface of the second connector. Due to the arrangement of the operating sleeve, the first spring, the limiting strip, the second spring and the clamping groove, during disassembly, only the operating sleeve needs to be pulled to be far away from the limiting strip, then the limiting strip is bounced through the second spring, the limiting strip is far away from the clamping groove, and at the moment, limiting between the first connector and the second connector is finished; therefore, the first connector and the second connector can be directly detached to replace the sealing ring. The dismounting operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of movable elbows, in particular to a long-radius high-pressure movable elbow. Background Art

[0002] High-pressure elbow is a kind of pipe fitting used for making bends of different angles at the bends of high-pressure pipelines. It accounts for the largest proportion of all pipe fittings used in high-pressure pipeline systems, about 80%, and high-pressure movable elbow is a high-pressure elbow with flexible angle adjustment.

[0003] After a period of use, the long radius high-pressure flexible elbow will reduce the sealing performance of the sealing ring due to aging and wear caused by the rotation of the pipe, which makes leakage more likely to occur. Therefore, the pipe needs to be disassembled regularly to replace the seal, but the movable joint is limited by bolts. Therefore, the staff needs to operate multiple bolts during the disassembly and assembly process. Due to the different structures of different manufacturers, the types of bolts may be external hexagon, internal hexagon, flat, cross, plum blossom, etc., which require specific tools and are more cumbersome. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a long-radius high-pressure movable elbow to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a long-radius high-pressure movable elbow, comprising a first joint and a second joint, the first joint having an operating sleeve sleeved on the outside, and a first spring connected between the operating sleeve and the first joint, a groove is provided on the upper side of one side of the first joint, and a second spring is fixed inside the groove, a limiting strip is connected to one side of the first joint, and a card groove is provided on the outer surface of the second joint.

[0006] By adopting the above technical solution, when disassembling, it is only necessary to pull the operating sleeve to make the operating sleeve away from the limit strip, and then the limit strip is bounced up by the second spring, so that the limit strip is away from the slot, and the limit between the first joint and the second joint is ended at this time, so that the first joint and the second joint can be directly separated to replace the sealing ring; when installing, the operating sleeve is pulled to make the operating sleeve away from the limit strip, and the operating sleeve compresses the first spring, and the limit strip is bounced up by the second spring, and then the second joint is inserted into the first joint, and then the pulling of the operating sleeve is stopped, and the operating sleeve is driven by the first spring to move in the direction of the limit strip. The operating sleeve is displaced this time to resist the limit strip, so that the limit strip rotates in the direction of the second joint and enters the slot, thereby completing the limit between the first joint and the second joint, and at the same time the second spring is compressed to prepare for the next time to bounce the limit strip.

[0007] Furthermore, the control sleeve is slidably connected to the first joint, and the control sleeve abuts against the limit strip.

[0008] By adopting the above technical solution, the staff stops pulling the operating sleeve, and drives the operating sleeve to move toward the limit bar through the first spring, and the operating sleeve is displaced against the limit bar.

[0009] Furthermore, the limit bar is rotatably connected to the first joint, and the limit bar is detachably connected to the slot.

[0010] By adopting the above technical solution, the limiting strip rotates toward the second joint and enters the slot, thereby completing the limiting between the first joint and the second joint.

[0011] Furthermore, the cross section of the limiting strip is in the shape of an inverted "convex" character, and the clamping groove is in the shape of a circular ring.

[0012] By adopting the above technical solution, the limiting strip enters the slot to complete the limiting between the first joint and the second joint, and the slot is in a circular ring shape to avoid affecting the rotation of the first joint and the second joint.

[0013] Furthermore, the limit bars and the second spring are both provided in plurality, and the plurality of limit bars and the second spring are distributed in a ring array, and the limit bars are in contact with the second spring.

[0014] By adopting the above technical solution, the staff pulls the operating sleeve to make the operating sleeve away from the limiting strip, and then the limiting strip is bounced up by the second spring, so that the limiting strip is away from the slot.

[0015] Furthermore, one end of each of the first joint and the second joint is connected to a high-pressure elbow, and a sealing ring is connected between the first joint and the second joint.

[0016] By adopting the above technical solution, the high-pressure elbow is convenient for conveying fluid, and the provision of the sealing ring prevents leakage from occurring in the gap between the first joint and the second joint.

[0017] Furthermore, three sealing rings are provided, and the three sealing rings are equidistantly distributed.

[0018] By adopting the above technical solution, the number of sealing rings is increased, thereby increasing the fault tolerance rate, which can effectively reduce the occurrence of pipe leakage and increase the stability of the pipe during operation.

[0019] Furthermore, the inner ring of the control sleeve is provided with a plurality of slide grooves, and the plurality of slide grooves are distributed in a ring array.

[0020] By adopting the above technical solution, the control sleeve can be guided so that the control sleeve can only slide in a straight line, thereby preventing the control sleeve from rotating and causing additional wear on the control sleeve, the first spring and the limit strip.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] The utility model is provided with the operating sleeve, the first spring, the limit bar, the second spring and the slot. When disassembling, it is only necessary to pull the operating sleeve to make the operating sleeve away from the limit bar, and then the limit bar is bounced up by the second spring, so that the limit bar is away from the slot. At this time, the limit between the first joint and the second joint is completed, so that the first joint and the second joint can be directly separated to replace the sealing ring; when installing, the operating sleeve is pulled to make the operating sleeve away from the limit bar, and the operating sleeve compresses the first spring, and the limit bar is bounced up by the second spring, and then the second joint is inserted into the first joint, and then the pulling of the operating sleeve is stopped, and the operating sleeve is driven by the first spring to move in the direction of the limit bar. The operating sleeve is displaced this time to resist the limit bar, so that the limit bar is rotated in the direction of the second joint and enters the slot, thereby completing the limit between the first joint and the second joint, and at the same time the second spring is compressed to prepare for the next limit bar to be bounced open; the disassembly and assembly operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the first joint after docking of the utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the first joint when the utility model is butt-jointed;

[0026] Figure 4 This is a schematic diagram of the explosion structure of the first joint of the utility model.

[0027] In the figure: 1. first joint; 2. second joint; 3. high-pressure elbow; 4. control sleeve; 5. first spring; 6. limit strip; 7. second spring; 8. slot; 9. sealing ring. DETAILED DESCRIPTION

[0028] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0029] The following describes an embodiment of the utility model based on its overall structure.

[0030] Embodiment 1:

[0031] A long radius high pressure flexible elbow, such as Figure 1-Figure 4As shown, it includes a first joint 1 and a second joint 2. The first joint 1 is sleeved with a control sleeve 4 on the outside. The control sleeve 4 is slidably connected to the first joint 1. The control sleeve 4 abuts against a limit strip 6. A first spring 5 is connected between the control sleeve 4 and the first joint 1. The control sleeve 4 is driven to move toward the limit strip 6 by the first spring 5. The control sleeve 4 abuts against the limit strip 6 during this displacement. A groove is opened on the upper side of one side of the first joint 1. A second spring 7 is fixed inside the groove. A plurality of limit strips 6 and a second spring 7 are provided. The plurality of limit strips 6 and the second spring 7 are both in an annular array. The limiting strip 6 is distributed in a shape, the limiting strip 6 abuts against the second spring 7, and the limiting strip 6 is bounced up by the second spring 7; the limiting strip 6 is connected to one side of the first joint 1, and the limiting strip 6 is rotatably connected to the first joint 1. The cross-section of the limiting strip 6 is in an inverted "convex" shape, and a slot 8 is provided on the outer surface of the second joint 2. The limiting strip 6 is detachably connected to the slot 8, and the limiting strip 6 is rotated toward the second joint 2 to enter the slot 8, thereby completing the limiting between the first joint 1 and the second joint 2; the slot 8 is in a circular ring shape to avoid affecting the rotation of the first joint 1 and the second joint 2 and causing the limiting strip 6 to be bumped.

[0032] See also Figure 1-Figure 4 In the above embodiment, one end of the first joint 1 and the second joint 2 are both connected with a high-pressure elbow 3, which is convenient for conveying fluid and can be adjusted to different angles for different scenarios; a sealing ring 9 is connected between the first joint 1 and the second joint 2, and three sealing rings 9 are provided, and the three sealing rings 9 are equidistantly distributed. The setting of the sealing ring 9 avoids leakage in the gap between the first joint 1 and the second joint 2.

[0033] Embodiment 2:

[0034] On the basis of the above-mentioned embodiment 1, in order to avoid extra wear caused by the rotation of the control sleeve 4, the following arrangement is adopted.

[0035] See also Figure 2-Figure 4 In the above embodiment, a plurality of slide grooves are provided in the inner ring of the control sleeve 4, and the plurality of slide grooves are distributed in a circular array to guide the control sleeve 4 so that the control sleeve 4 can only slide in a straight line, thereby preventing the control sleeve 4 from rotating and causing additional wear to the control sleeve 4, the first spring 5 and the limit strip 6.

[0036] The implementation principle of the utility model is as follows: first, during disassembly, the staff pulls the operating sleeve 4 to make the operating sleeve 4 away from the limiting strip 6, and then the limiting strip 6 is bounced up by the second spring 7, so that the limiting strip 6 is away from the card slot 8, and the limiting between the first joint 1 and the second joint 2 is ended at this time, and then the staff disassembles the first joint 1 and the second joint 2 to replace the sealing ring 9;

[0037] During installation, the staff pulls the operating sleeve 4 to make the operating sleeve 4 move away from the limit strip 6, and the operating sleeve 4 compresses the first spring 5, and the limit strip 6 is bounced up by the second spring 7. Then the staff inserts the second joint 2 into the first joint 1. Then the staff stops pulling the operating sleeve 4 and drives the operating sleeve 4 to move in the direction of the limit strip 6 through the first spring 5. The operating sleeve 4 is displaced this time to resist the limit strip 6, so that the limit strip 6 rotates in the direction of the second joint 2 into the slot 8, thereby completing the limit between the first joint 1 and the second joint 2. At the same time, the second spring 7 is compressed to prepare for the next time to bounce the limit strip 6.

[0038] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A long radius high pressure movable elbow, comprising a first joint (1) and a second joint (2), characterized in that: The first joint (1) is externally sleeved with an operating sleeve (4), and a first spring (5) is connected between the operating sleeve (4) and the first joint (1); a groove is provided on the upper side of one side of the first joint (1), and a second spring (7) is fixed inside the groove; a limiting strip (6) is connected to one side of the first joint (1), and a clamping groove (8) is provided on the outer surface of the second joint (2).

2. The long radius high pressure movable elbow according to claim 1, characterized in that: The control sleeve (4) is slidably connected to the first joint (1), and the control sleeve (4) is in abutment with the limit strip (6).

3. The long radius high pressure movable elbow according to claim 2, characterized in that: The limiting strip (6) is rotatably connected to the first joint (1), and the limiting strip (6) is detachably connected to the clamping slot (8).

4. The long radius high pressure movable elbow according to claim 3, characterized in that: The cross section of the limiting strip (6) is in the shape of an inverted "convex" character, and the clamping groove (8) is in the shape of a circular ring.

5. The long radius high pressure movable elbow according to claim 4, characterized in that: A plurality of the limit strips (6) and the second springs (7) are provided, and the plurality of limit strips (6) and the second springs (7) are distributed in a ring array, and the limit strips (6) are in contact with the second springs (7).

6. The long radius high pressure movable elbow according to claim 1, characterized in that: One end of each of the first joint (1) and the second joint (2) is connected to a high-pressure elbow (3), and a sealing ring (9) is connected between the first joint (1) and the second joint (2).

7. The long radius high pressure movable elbow according to claim 6, characterized in that: The sealing rings (9) are provided in three numbers, and the three sealing rings (9) are distributed at equal distances.

8. The long radius high pressure movable elbow according to claim 1, characterized in that: The inner ring of the control sleeve (4) is provided with a plurality of slide grooves, and the plurality of slide grooves are distributed in a ring array.

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