High-pressure integrated buckling elbow joint

Abstract

The utility model relates to a buckle pressure elbow joint technical field discloses a high pressure integral type buckle pressure elbow joint, including buckle pressure elbow joint, the bottom fixed connection of buckle pressure elbow joint has fixed support ring, the surface fixed connection of buckle pressure elbow joint has limit snap ring, the front surface fixed connection of limit snap ring has return spring. The utility model discloses through setting up return spring to continue to exert positive pressure to the installation push cylinder, makes installation support head always close target pipe fitting interface, forms initiative pre -tightening force, effectively offsets the vibration impact under high pressure working condition, prevents the loosening and falls off, through setting up limit ball + and sliding lifting groove, when installing support head inserts, limit ball slides along sliding lifting groove and embeds limit card slot, realizes mechanical self -lock, ensures the stability of connection state, and sliding lifting groove allows small axial displacement compensation, adapts thermal expansion and cold shrink or assembly error, avoids the sealing failure caused by rigid stress concentration, increases the equipment whole in the connection.

Description

Technical Field

[0001] This utility model relates to the field of crimped elbow joint technology, and in particular to a high-pressure integrated crimped elbow joint. Background Technology

[0002] High-pressure elbows are pipe fittings used for bends at different angles in high-pressure pipelines. They account for the largest proportion of all pipe fittings used in high-pressure pipeline systems, approximately 80%. Generally, high-pressure elbows have thicker walls or are made of materials with higher pressure resistance than ordinary elbows. They are available in three connection methods: butt welding, socket welding, and threaded connection. High-pressure integrated crimped elbow fittings are integrated connection accessories used in hydraulic systems, combining the function of an elbow with a crimped sealing design.

[0003] An existing high-pressure integrated crimp elbow connector is not convenient to guarantee the flexibility and convenience of connection and the stability of the connector body after connection when the connector is installed and fixed in different working locations. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-pressure integrated crimped elbow connector.

[0005] This utility model is achieved by the following technical solution: a high-pressure integrated crimping elbow joint, including a crimping elbow joint, a fixed support ring fixedly connected to the bottom of the crimping elbow joint, a limit ring fixedly connected to the surface of the crimping elbow joint, and a return spring fixedly connected to the front of the limit ring. The front of the reset spring is fixedly connected to a mounting push cylinder, and the surface of the mounting push cylinder is fixedly connected to a pushing support ring. The inside of the snap-fit ​​elbow joint is provided with a sliding lifting groove, and a limit ball is slidably connected inside the sliding lifting groove. The front of the snap-fit ​​elbow joint is inserted with a mounting support head, and the surface of the mounting support head is fixedly connected to a connecting support plate. The rear end of the connecting support plate is fixedly connected to a connecting sleeve, and a limit slot is opened on the driving surface of the mounting support head.

[0006] As a further improvement to the above solution, the reset spring is located on the surface of the snap-fit ​​elbow joint, the interior of the mounting push cylinder is in contact with the surface of the limiting ring, and the mounting push cylinder is located on the surface of the snap-fit ​​elbow joint.

[0007] As a further improvement to the above solution, the number of the pushing support rings is set to two, and the two pushing support rings are symmetrically distributed front and back with the installation push cylinder as the center. The limiting ball is slidably connected inside the crimping elbow joint.

[0008] Through the above technical solution, the fixed support ring provides basic load-bearing support, and the limiting ring restricts radial displacement. Together, they constrain the spatial position of the crimped elbow joint, preventing interface misalignment caused by external force torsion. The sliding lifting groove and the limiting ball are equidistantly distributed around the circumference, so that the pressure is evenly applied to the entire circumference of the interface, avoiding wear or tear of the sealing material caused by local overload.

[0009] As a further improvement to the above solution, the interior of the mounting push cylinder contacts the surface of the crimping elbow joint, a connecting sleeve is inserted into the front of the mounting push cylinder, and the surface of the limiting ball contacts the surface of the mounting support.

[0010] Through the above technical solution, the combination of several sets of sliding lifting grooves and limiting balls forms a ring support network, which decomposes the high-pressure impact into multi-directional force, greatly reduces the pressure peak at a single contact point, slows down the metal fatigue process, and the return spring, as a flexible medium, absorbs the energy fluctuation of instantaneous high-pressure pulses, protecting the internal sealing structure and external pipes from impact damage.

[0011] As a further improvement to the above solution, the number of sliding lifting grooves and limiting balls is set to several, and the several sliding lifting grooves and limiting balls are evenly distributed around the center of the elbow joint.

[0012] As a further improvement to the above solution, the number of connecting support plates is set to several, and the several connecting support plates are distributed equidistantly around the mounting head, and the connecting sleeve is inserted into the inner wall of the mounting push cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a reset spring to continuously apply positive pressure to the installation push cylinder, ensuring the installation support remains tightly against the target pipe fitting interface, thus generating active pre-tightening force. This effectively counteracts vibration and impact under high-pressure conditions, preventing loosening and detachment. By incorporating a limiting ball and a sliding lifting groove, when the installation support is inserted, the limiting ball slides along the sliding lifting groove and embeds into the limiting slot, achieving mechanical self-locking and ensuring the stability of the connection. The sliding lifting groove allows for minor axial displacement compensation, adapting to thermal expansion and contraction or assembly errors, avoiding sealing failure caused by rigid stress concentration, and enhancing the overall stability of the connection.

[0014] This utility model features a plug-in design for the mounting bracket and connecting sleeve, allowing for assembly and disassembly without complex tools, thus shortening maintenance time. The circumferentially distributed layout of the connecting support plate further simplifies the integration complexity of multi-pipeline systems. By setting limit balls, reset springs, and other key wear-resistant components to be detachable, only partial component replacement is required during on-site maintenance, reducing operation and maintenance costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the side anatomical structure of the present invention; Figure 3 This is a schematic diagram of the structure of this utility model from below; Figure 4 This is a schematic diagram of the right-side structure of this utility model.

[0016] Explanation of key symbols: 1. Press-fit elbow connector; 2. Fixed support ring; 3. Limiting retaining ring; 4. Return spring; 5. Install push cylinder; 6. Push support ring; 7. Sliding lifting groove; 8. Limiting ball; 9. Install support head; 10. Connecting support plate; 11. Connecting sleeve; 12. Limiting retaining groove. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0018] Example: Please combine Figure 1-4 This embodiment of a high-pressure integrated crimping elbow joint includes a crimping elbow joint 1, a fixed support ring 2 fixedly connected to the bottom of the crimping elbow joint 1, a limit ring 3 fixedly connected to the surface of the crimping elbow joint 1, and a return spring 4 fixedly connected to the front of the limit ring 3. A mounting push cylinder 5 is fixedly connected to the front of the return spring 4. A pushing support ring 6 is fixedly connected to the surface of the mounting push cylinder 5. A sliding lifting groove 7 is opened inside the crimping elbow joint 1. A limit ball 8 is slidably connected inside the sliding lifting groove 7. A mounting support head 9 is inserted into the front of the crimping elbow joint 1. A connecting support plate 10 is fixedly connected to the surface of the mounting support head 9. A connecting sleeve 11 is fixedly connected to the rear end of the connecting support plate 10. A limit slot 12 is opened on the surface of the mounting support head 9. By setting the return spring 4, positive pressure is continuously applied to the mounting push cylinder 6. The cylinder 5 ensures that the mounting support 9 remains tightly against the target pipe fitting interface, forming an active pre-tightening force that effectively counteracts vibration and impact under high-pressure conditions, preventing loosening and detachment. By setting a limiting ball 8+ and a sliding lifting groove 7, when the mounting support 9 is inserted, the limiting ball 8 slides along the sliding lifting groove 7 and embeds into the limiting slot 12, achieving mechanical self-locking and ensuring the stability of the connection. The sliding lifting groove 7 allows for minor axial displacement compensation, adapting to thermal expansion and contraction or assembly errors, avoiding sealing failure caused by rigid stress concentration, and increasing the overall stability of the equipment during connection.

[0019] The reset spring 4 is located on the surface of the crimping elbow joint 1, and the inside of the mounting push cylinder 5 is in contact with the surface of the limiting ring 3. The mounting push cylinder 5 is located on the surface of the crimping elbow joint 1.

[0020] The number of push rings 6 is set to two. The two push rings 6 are symmetrically distributed front and back with the installation push cylinder 5 as the center. The limiting ball 8 is slidably connected inside the crimping elbow joint 1.

[0021] The fixed support ring 2 provides basic load-bearing support, and the limiting ring 3 restricts radial displacement. Together, they constrain the spatial position of the crimped elbow joint 1, preventing interface misalignment caused by external force torsion. The sliding lifting groove 7 and the limiting ball 8 are equidistantly distributed around the circumference, so that the pressure is evenly applied to the entire circumference of the interface, avoiding wear or tear of the sealing material caused by local overload.

[0022] The interior of the mounting push cylinder 5 is in contact with the surface of the crimping elbow connector 1. A connecting sleeve 11 is inserted into the front of the mounting push cylinder 5, and the surface of the limiting ball 8 is in contact with the surface of the mounting support 9.

[0023] The combination of several sets of sliding lifting grooves 7 and limiting balls 8 forms a ring support network, which decomposes the high-pressure impact into multi-directional force, greatly reduces the pressure peak at a single contact point, slows down the metal fatigue process, and the return spring 4, as a flexible medium, absorbs the energy fluctuation of instantaneous high-pressure pulses, protecting the internal sealing structure and external pipes from impact damage.

[0024] The number of sliding lifting grooves 7 and limiting balls 8 is set to several. The several sliding lifting grooves 7 and limiting balls 8 are evenly distributed around the center of the crimped elbow joint 1. By setting the plug-in design of the installation support 9 and the connecting sleeve 11, assembly and disassembly can be completed without complicated tools, shortening maintenance time. The circumferentially distributed layout of the connecting support plate 10 further simplifies the integration complexity of the multi-pipeline system. By setting the limiting balls 8, the return spring 4 and other key wear-resistant parts to be detachable, only some components need to be replaced during on-site maintenance, reducing operation and maintenance costs.

[0025] The number of connecting support plates 10 is set to several, and the several connecting support plates 10 are evenly distributed around the mounting support head 9. The connecting sleeve 11 is inserted into the inner wall of the mounting push cylinder 5.

[0026] The implementation principle of a high-pressure integrated crimp elbow joint in this application embodiment is as follows: By setting a return spring 4 to continuously apply positive pressure to the installation push cylinder 5, the installation support 9 is always tightly attached to the target pipe interface, forming an active pre-tightening force, which effectively offsets the vibration and impact under high-pressure conditions and prevents loosening and falling off. By setting a limiting ball 8+ and a sliding lifting groove 7, when the installation support 9 is inserted, the limiting ball 8 slides along the sliding lifting groove 7 and embeds into the limiting slot 12 to achieve mechanical self-locking and ensure the stability of the connection state. The sliding lifting groove 7 allows for small axial displacement compensation, adapts to thermal expansion and contraction or assembly errors, avoids sealing failure caused by rigid stress concentration, and increases the overall connection of the equipment. By setting the plug-in design of the installation support 9 and the connecting sleeve 11, assembly and disassembly can be completed without complicated tools, shortening maintenance time. The circumferentially distributed layout of the connecting support plate 10 further simplifies the integration complexity of multi-pipeline systems. By setting the limiting ball 8, return spring 4 and other key wear-resistant parts to be detachable, only partial components need to be replaced during on-site maintenance, reducing operation and maintenance costs.

[0027] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A high-pressure integrated crimped elbow connector, characterized in that, The device includes a crimped elbow connector (1), a fixed support ring (2) is fixedly connected to the bottom of the crimped elbow connector (1), a limit ring (3) is fixedly connected to the surface of the crimped elbow connector (1), and a return spring (4) is fixedly connected to the front of the limit ring (3). The front of the reset spring (4) is fixedly connected to the mounting push cylinder (5), and the surface of the mounting push cylinder (5) is fixedly connected to the pushing support ring (6). The inside of the snap-fit ​​elbow joint (1) is provided with a sliding lifting groove (7), and the inside of the sliding lifting groove (7) is slidably connected to a limiting ball (8). The front of the snap-fit ​​elbow joint (1) is inserted with a mounting support head (9), and the surface of the mounting support head (9) is fixedly connected to a connecting support plate (10). The rear end of the connecting support plate (10) is fixedly connected to a connecting sleeve (11), and the mounting support head (9) drives the surface to open a limiting slot (12).

2. The high-pressure integrated crimped elbow connector as described in claim 1, characterized in that: The reset spring (4) is located on the surface of the snap-fit ​​elbow joint (1), the interior of the mounting push cylinder (5) is in contact with the surface of the limiting ring (3), and the mounting push cylinder (5) is located on the surface of the snap-fit ​​elbow joint (1).

3. The high-pressure integrated crimped elbow connector as described in claim 1, characterized in that: The number of the push rings (6) is set to two, and the two push rings (6) are symmetrically distributed front and back with the installation push cylinder (5) as the center. The limiting ball (8) is slidably connected inside the snap-fit ​​elbow joint (1).

4. The high-pressure integrated crimped elbow connector as described in claim 1, characterized in that: The interior of the mounting push cylinder (5) is in contact with the surface of the snap-fit ​​elbow joint (1), and a connecting sleeve (11) is inserted into the front of the mounting push cylinder (5). The surface of the limiting ball (8) is in contact with the surface of the mounting support (9).

5. The high-pressure integrated crimped elbow connector as described in claim 1, characterized in that: The number of sliding lifting grooves (7) and limiting beads (8) is set to several, and the several sliding lifting grooves (7) and limiting beads (8) are distributed equidistantly around the center of the elbow joint (1).

6. The high-pressure integrated crimped elbow connector as described in claim 1, characterized in that: The number of connecting support plates (10) is set to several, and the several connecting support plates (10) are distributed equidistantly around the mounting support head (9) as the center. The connecting sleeve (11) is inserted into the inner wall of the mounting push cylinder (5).

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