High performance swivel joint

By introducing expansion, sealing, movement, connection, protection, flow guidance, and rotation components into the oil well drill string conversion joint, the problem of sealing failure caused by drill string torsional vibration is solved, achieving efficient sealing and extended service life of the conversion joint.

CN116624105BActive Publication Date: 2026-05-08HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO LTD
Filing Date
2023-05-24
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

During oil well drilling, the conversion joint may experience connection failure due to high heat generation and sealing failure caused by the torsional vibration of the drill string.

Method used

A high-performance adapter was designed, comprising multiple telescopic components, sealing components, fitting components, moving components, connecting components, protective components, flow guiding components, and rotating components. The sealing gasket is fitted to the connection between the adapter and the drill bit by the impact of the coolant. The sealing effect is enhanced by the cooperation of the magnetic ring and the rubber ring. The flow guiding components and rotating components accelerate the flow of coolant and reduce thread contact.

Benefits of technology

It effectively protects the seal at the connection between the adapter and the drill bit, extends the service life of the adapter, and improves practicality and sealing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a high-performance conversion joint, comprising a conversion joint, a plurality of telescopic components connected to the conversion joint, and a sealing component connected to each of the plurality of telescopic components; a fitting component is arranged on each of the plurality of sealing components, and the plurality of sealing components are arranged above the conversion joint; a moving component is arranged in the conversion joint, the moving component is connected to the plurality of sealing components, and a connecting component is arranged on the moving component. When the device is connected to a drilling tool, the cold zone liquid in the drilling tool can impact the connecting component, so that the sealing component and the protection component are fitted at the connection position of the conversion joint and the drilling tool, the thread at the connection position of the conversion joint and the drilling tool is further protected, the service life of the conversion joint is prolonged, and the practicability of the conversion joint is further improved.
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Description

Technical Field

[0001] This invention relates to the field of oil well drilling tool adapter technology, and more specifically, to high-performance adapters. Background Technology

[0002] An oil well is a hole drilled using drilling methods. Generally, after drilling to the oil layer, an oil layer casing is run in, and oil well cement is injected into the annular space between the casing and the well wall to maintain the well wall and seal the oil, gas, and water layers. Then, according to the requirements of oilfield development, the oil layer is perforated with a perforating gun to form a channel, and an oil tubing is run in. Using appropriate flow induction methods, the oil is raised from the bottom of the oil well to the wellhead.

[0003] In practice, oil well drilling tools are crucial equipment during oil well drilling and production, and adapters are an indispensable part of them. However, during the use of adapters, the torsional vibration of the drill string causes its rotation speed to fluctuate. When the drill string suddenly accelerates, the torque may suddenly increase. Due to the interaction between the drill string and the well wall, and between the external and internal threads, a high amount of heat is generated at the adapter. As a result, thread grease flows out from the thread gap, which may cause sealing failure. At the same time, high-pressure fluid flows out from the pipe along the thread gap, causing punctures, which may further lead to the failure of the connection between the adapter and other parts of the drilling tool.

[0004] Therefore, we proposed a high-performance adapter to solve the above problems. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide high-performance adapters to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-performance adapter, comprising an adapter with multiple telescopic components connected thereto, each of the multiple telescopic components being connected to a sealing component; each of the multiple sealing components being provided with a fitting component, and the multiple sealing components being respectively located above the adapter; the adapter having a movable component connected to the multiple sealing components; the movable component having a connecting component, one end of the connecting component being connected to a protective component, the protective component being located above the sealing components; the adapter having a flow guiding component and a rotating component, one end of the flow guiding component being connected to the rotating component, the flow guiding component being located below the telescopic components.

[0007] When this device is used to connect the adapter to the drill bit, the cooling fluid inside the drill bit will impact the connecting components. This allows the sealing and protective components to fit snugly against the connection between the adapter and the drill bit, further protecting the threads at the connection point and extending the service life of the adapter, thus improving its practicality.

[0008] In a preferred embodiment, the telescopic assembly includes a fixed plate fixedly connected to the adapter, a telescopic cylinder fixedly connected to the fixed plate, a telescopic spring fixedly connected to the inner top end of the telescopic cylinder, a telescopic rod fixedly connected to one end of the telescopic spring, and the lower end of the telescopic rod passing through the side wall of the fixed plate and extending downwards. The sealing assembly includes a connecting rod fixedly connected to one end of the telescopic rod, a first magnetic ring sleeved on one end of the connecting rod, a sealing washer provided on one end of the connecting rod, and the connecting rod passing through the side wall of the sealing washer and extending inwards. A second magnetic ring matching the first magnetic ring is fixedly connected to the sealing washer.

[0009] When the adapter rotates due to the influence of the drill string, the sealing gasket on the connecting rod moves accordingly under the action of centrifugal force. This not only causes the sealing gasket to move outward, but also causes it to move downward under the impact of the coolant, thus making the sealing gasket fit against the connection between the drill string and the adapter, further protecting the adapter.

[0010] In a preferred embodiment, the bonding assembly includes a bonding groove disposed on a sealing gasket, the sealing gasket having two symmetrical storage cavities, both of which are filled with sealing oil, and the bonding groove having a plurality of oil seepage holes, the plurality of oil seepage holes being located on one side of the storage cavity respectively.

[0011] The design of the storage cavity and the fitting groove allows the fitting groove to fit more tightly with the assistance of the sealing oil, while also improving the protection of the adapter. It is particularly important to note that the sealing oil will not leak from the oil seepage hole under normal conditions.

[0012] In a preferred embodiment, the movable component includes a fixed rod disposed in the conversion joint, a collar sleeved on the fixed rod, a diverter plate fixedly connected to the top end of the fixed rod, a plurality of impact rods fixedly connected to the collar, one end of each of the plurality of impact rods being connected to a plurality of connecting rods, and a plurality of impact plates fixedly connected to each of the plurality of impact rods.

[0013] When the coolant continuously impacts the adapter, it impacts the impact plate, causing the sealing gasket to move downwards. With the assistance of the distributor plate, the coolant is prevented from directly impacting the fixing rod, thus ensuring the normal operation of the fixing rod.

[0014] In a preferred embodiment, the connecting assembly includes multiple placement slots disposed on a fixed rod, with spring telescopic rods fixedly connected to the inner bottom of each of the multiple placement slots, and connecting plates fixedly connected to the upper ends of each of the multiple spring telescopic rods. Bending rods are fixedly connected to each of the multiple connecting plates. The protective assembly includes a single protective rubber ring fixedly connected to one end of each of the multiple bending rods, with multiple protective blocks fixedly connected to the protective rubber ring, and multiple rubber pads fixedly connected to the protective rubber ring, with the multiple rubber pads located on one side of each of the multiple protective blocks.

[0015] When coolant impacts the adapter, the protective block will not move downwards quickly due to the assistance of the spring telescopic rod. Therefore, the protective block will enter between the two sealing gaskets after the sealing gaskets have moved, thus improving the protection effect at the connection between the adapter and the drill bit.

[0016] In a preferred embodiment, the flow guiding assembly includes a flow guiding ring fixedly connected to the inner wall of the conversion joint, the flow guiding ring being located above the internal thread of the conversion joint, the conversion joint having multiple flow guiding plates, each of the multiple flow guiding plates being located above the flow guiding ring, and each of the multiple flow guiding plates having a crossbar fixedly connected to it.

[0017] With the assistance of the guide plate and guide ring, the contact between the coolant and the threads below the adapter can be further reduced, thereby improving the protective effect of the adapter and further enhancing its practicality.

[0018] In a preferred embodiment, the rotating assembly includes a rotating ring disposed in the conversion joint, a bearing is provided at the connection between the rotating ring and the fixed rod, one end of each of the multiple crossbars is connected to the rotating ring, and a turbine fan blade is sleeved on the bearing.

[0019] When the coolant impacts the turbine blades, it causes the turbine blades to rotate, which further accelerates the flow of coolant and allows it to flow towards the center of the adapter. This reduces the chance of coolant contacting the threads at the bottom of the adapter, indirectly improving the practicality of the adapter.

[0020] The technical effects and advantages of this invention are as follows:

[0021] In this device, when coolant enters the adapter, the sealing gasket is positioned at the contact point between the adapter and other parts of the drill bit. This further prevents coolant from directly entering the connection between the adapter and the drill bit, thus avoiding damage to the adapter threads and extending the service life of the adapter.

[0022] In this device, the protective and connecting components improve the sealing effect of the gasket, indirectly enhancing its usability and extending the service life of the adapter thread, thus further improving the practicality of the adapter.

[0023] In this device, the flow guiding component and the rotating component not only accelerate the flow rate of the coolant, but also allow the coolant to gradually flow towards the center of the adapter, thereby reducing the chance of the coolant coming into contact with the threads of the adapter, further protecting the adapter and indirectly extending its service life. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 3 This is a schematic diagram of the connection structure between the telescopic component and the sealing component in this invention;

[0027] Figure 4 This is a schematic diagram of a partial connection structure of the sealing assembly in this invention;

[0028] Figure 5 This is a schematic diagram of the connection structure of the bonding component in this invention;

[0029] Figure 6 This is a schematic diagram of the connection structure between the moving component and the sealing component in this invention;

[0030] Figure 7 This is a schematic diagram of the connection structure between the connecting component and the protective component in this invention;

[0031] Figure 8 This is a schematic diagram of the connection structure between the flow guiding component and the rotating component in this invention.

[0032] The attached figures are labeled as follows: 1. Adapter joint; 2. Telescopic assembly; 21. Fixing plate; 22. Telescopic cylinder; 23. Telescopic spring; 24. Telescopic rod; 3. Sealing assembly; 31. Connecting rod; 32. First magnetic ring; 33. Second magnetic ring; 34. Sealing gasket; 4. Adhesion assembly; 41. Adhesion groove; 42. Storage cavity; 43. Oil seepage hole; 5. Moving assembly; 51. Fixing rod; 52. Collar; 53. Diverter plate; 54. Impact rod; 55. Impact plate; 6. Connecting assembly; 61. Placement groove; 62. Spring telescopic rod; 63. Connecting plate; 64. Bending rod; 7. Protective assembly; 71. Protective rubber ring; 72. Protective block; 73. Rubber pad; 8. Guide assembly; 81. Guide ring; 82. Guide plate; 83. Crossbar; 9. Rotating assembly; 91. Rotating ring; 92. Bearing; 93. Turbine fan blade. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0034] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A high-performance adapter includes an adapter 1, which is a particularly important component in oil well drilling tools. The adapter 1 is connected to multiple telescopic components 2, each of which is connected to a sealing component 3. Each sealing component 3 has a fitting component 4, and the sealing components 3 are positioned above the adapter 1. The adapter 1 also includes a moving component 5, which is connected to the sealing components 3. The moving component 5 has a connecting component 6, one end of which is connected to a protective component 7, which is positioned above the sealing components 3. The adapter 1 also includes a flow guiding component 8 and a rotating component 9, one end of which is connected to the rotating component 9, and the flow guiding component 8 is positioned below the telescopic components 2.

[0035] The telescopic assembly 2 includes a fixed plate 21 fixedly connected to the adapter 1. Notably, the fixed plate 21 is located below the bend of the adapter 1, thereby reducing the direct impact of coolant on the fixed plate 21. A telescopic cylinder 22 is fixedly connected to the fixed plate 21. A telescopic spring 23 is fixedly connected to the inner top end of the telescopic cylinder 22. A telescopic rod 24 is fixedly connected to one end of the telescopic spring 23. Notably, the telescopic spring 23 has the purpose of retracting the telescopic rod 24, and further enables the telescopic rod 24 to return to its original position. The lower end of the telescopic rod 24 passes through the side wall of the fixed plate 21 and extends downward.

[0036] The sealing assembly 3 includes a connecting rod 31 fixedly connected to one end of the telescopic rod 24. A first magnetic ring 32 is sleeved on one end of the connecting rod 31, and a sealing washer 34 is provided on one end of the connecting rod 31. It is particularly noteworthy that the sealing washer 34 is made of rubber and can move on the connecting rod 31. One end of the connecting rod 31 passes through the side wall of the sealing washer 34 and extends into the interior. A second magnetic ring 33 that matches the first magnetic ring 32 is fixedly connected to the sealing washer 34. It is also particularly noteworthy that when the adapter 1 rotates, the sealing washer 34 moves outward under the action of centrifugal force, which separates the second magnetic ring 33 on the sealing washer 34 from the first magnetic ring 32. This allows the sealing washer 34 to be positioned at the connection between the adapter 1 and the drill bit. When the sealing washer 34 is not affected by centrifugal force, it can be reset with the assistance of the first magnetic ring 32 and the second magnetic ring 33.

[0037] The bonding assembly 4 includes a bonding groove 41 disposed on the sealing gasket 34. Notably, the upper and lower end faces of the bonding groove 41 are chamfered, which reduces the ingress of coolant. When the bonding groove 41 is bonded to the connection between the drill bit and the adapter 1, it forms a compression space. With the assistance of sealing oil, the sealing effect at the connection between the drill bit and the adapter 1 is improved. The sealing gasket 34 has two symmetrical storage cavities 42, both of which are filled with sealing oil. The bonding groove 41 has multiple oil leakage holes 43. Notably, the oil leakage holes 43 are located on the side wall of the storage cavity 42. When the sealing gasket 34 is moved outward by centrifugal force and is blocked by the drill bit, the sealing oil can leak out from the oil leakage holes 43 under the action of centrifugal force, thus improving the sealing effect of the sealing gasket 34. The multiple oil leakage holes 43 are located on one side of the storage cavity 42.

[0038] The movable component 5 includes a fixed rod 51 disposed in the adapter 1. A collar 52 is sleeved on the fixed rod 51. A diverter plate 53 is fixedly connected to the top of the fixed rod 51. The function of the diverter plate 53 is to allow the coolant to better impact the turbine blades 93, thereby enabling the turbine blades 93 to rotate better. Multiple impact rods 54 are fixedly connected to the collar 52. One end of each impact rod 54 is connected to multiple connecting rods 31. Multiple impact plates 55 are fixedly connected to each impact rod 54. It is particularly noteworthy that, with the assistance of the impact plates 55 and the coolant, when the coolant impacts the impact plates 55, the fixed rod 51 can move downward accordingly, so that the sealing gasket 34 can fit into the connection position between the drill bit and the adapter 1.

[0039] After the operator installs the adapter 1 in the appropriate position, coolant enters the adapter 1. Simultaneously, the adapter 1 rotates with the drill bit. When the coolant enters the adapter 1, the impact plate 55 is impacted by the coolant, causing the fixed rod 51 to move downwards. This, in turn, moves the sealing gasket 34 downwards. Under centrifugal force, the sealing gasket 34 moves along the connecting rod 31, further securing it to the connection between the adapter 1 and the drill bit. When the drill bit and adapter 1 are connected, the sealing oil is affected by centrifugal force, which allows the sealing oil to enter the fitting groove 41. The fitting groove 41 can fit into the connection between the drill bit and the adapter 1, thereby improving the sealing effect of the connection between the drill bit and the adapter 1. After the adapter 1 is used up, with the assistance of the telescopic spring 23, the sealing gasket 34 can be moved away from the adapter 1. At the same time, with the assistance of the first magnetic ring 32 and the second magnetic ring 33, the sealing gasket 34 can move laterally, thereby moving the sealing gasket 34 away from the adapter 1, and further enabling the device to be used normally the next time. Example

[0040] Reference Figure 6 and Figure 7The connecting assembly 6 includes multiple placement slots 61 disposed on the fixed rod 51. A spring telescopic rod 62 is fixedly connected to the inner bottom of each placement slot 61. The spring telescopic rod 62 is composed of a spring element, a fixed post, and a moving rod. One end of the moving rod is located in the fixed post and connected to the spring element. One end of the spring element is fixedly connected to the inner bottom of the fixed post. With the assistance of the spring element, the bending rod 64 can be reset. A connecting plate 63 is fixedly connected to the upper end of each of the multiple spring telescopic rods 62. With the assistance of the connecting plate 63, coolant can impact the connecting plate 63, which can further move the bending rod 64. The bending rod 64 is fixedly connected to each of the multiple connecting plates 63.

[0041] The protective component 7 includes a single protective rubber ring 71 fixedly connected to one end of multiple bent rods 64. Notably, the protective rubber ring 71 is positioned above the sealing gasket 34. The protective blocks 72 are also made of rubber, and their connection positions with the drill bit are aligned with those of the sealing gasket 34, thereby enhancing the protective effect of the sealing gasket 34. Multiple protective blocks 72 and multiple rubber pads 73 are fixedly connected to the protective rubber ring 71. Notably, the lower sidewall of the rubber pads 73 is an inclined plate, further preventing coolant from entering the sealing gasket 34 and further protecting the drill bit and adapter 1. The multiple rubber pads 73 are located on one side of the multiple protective blocks 72.

[0042] When coolant impacts the adapter 1, the connecting plate 63 is positioned below the distributor plate 53, resulting in less impact on the connecting plate 63. However, over time, the connecting plate 63 will move, causing the protective rubber ring 71 to move as well. This allows the protective block 72 to move between the two sealing gaskets 34, further enhancing the protective effect of the sealing gaskets 34. Simultaneously, the rubber gasket 73 further improves the sealing effect of the sealing gaskets 34. When the coolant is no longer in the adapter 1, with the assistance of the spring telescopic rod 62, the protective rubber ring 71 can move away from the sealing gaskets 34, allowing the device to be used normally the next time. Example

[0043] Reference Figure 8The flow guiding assembly 8 includes a flow guiding ring 81 fixedly connected to the inner wall of the adapter 1. Notably, the inner tangent of the flow guiding ring 81 is chamfered, allowing coolant to flow out from the inner surface of the flow guiding ring 81, further forming a water curtain effect. This further prevents the coolant from affecting the connection between the adapter 1 and the drill bit. The flow guiding ring 81 is located above the internal thread of the adapter 1. The adapter 1 is provided with multiple flow guiding plates 82. Notably, the flow guiding plates 82 also have a flow guiding function, allowing the coolant to flow towards the center of the adapter 1. This prevents the coolant from contacting the connection between the adapter 1 and the drill bit, thus protecting the adapter 1. The multiple flow guiding plates 82 are located above the flow guiding ring 81, and each of the multiple flow guiding plates 82 is fixedly connected with a crossbar 83.

[0044] The rotating assembly 9 includes a rotating ring 91 disposed in the conversion joint 1. A bearing 92 is provided at the connection between the rotating ring 91 and the fixed rod 51. One end of multiple crossbars 83 is connected to the rotating ring 91 respectively. A turbine blade 93 is sleeved on the bearing 92. It is particularly noteworthy that when the coolant impacts the turbine blade 93, the turbine blade 93 can rotate accordingly, thereby accelerating the flow rate of the coolant. At the same time, with the assistance of the bearing 92, the fixed rod 51 can also be used normally, and the guide plate 82 can be rotated accordingly, further protecting the conversion joint 1 and indirectly extending the service life of the conversion joint 1.

[0045] When coolant enters the adapter 1, it impacts the turbine blade 93. With the assistance of the bearing 92, the turbine blade 93 rotates, thereby accelerating the flow of coolant. It also drives the rotation of the guide plate 82. With the assistance of the guide plate 82 and the guide ring 81, the contact between the coolant and the connection between the adapter 1 and the drill bit is reduced, thus protecting the adapter 1 and indirectly extending its service life.

[0046] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0047] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0048] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-performance adapter, comprising an adapter (1), characterized in that; The adapter (1) is connected to a plurality of telescopic components (2), and each of the plurality of telescopic components (2) is connected to a sealing component (3). Each of the sealing components (3) is provided with a fitting component (4), and the sealing components (3) are respectively located above the adapter (1); The adapter (1) is provided with a movable component (5), which is connected to a plurality of sealing components (3); The movable component (5) is provided with a connecting component (6), one end of which is connected to a protective component (7), and the protective component (7) is located above the sealing component (3); The adapter (1) is provided with a flow guiding component (8) and a rotating component (9). One end of the flow guiding component (8) is connected to the rotating component (9), and the flow guiding component (8) is located below the telescopic component (2).

2. The high-performance adapter according to claim 1, characterized in that: The telescopic assembly (2) includes a fixed plate (21) fixedly connected to the adapter (1), a telescopic cylinder (22) fixedly connected to the fixed plate (21), a telescopic spring (23) fixedly connected to the inner top end of the telescopic cylinder (22), a telescopic rod (24) fixedly connected to one end of the telescopic spring (23), and the lower end of the telescopic rod (24) passes through the side wall of the fixed plate (21) and extends downward.

3. The high-performance adapter according to claim 2, characterized in that: The sealing assembly (3) includes a connecting rod (31) fixedly connected to one end of the telescopic rod (24). A first magnetic ring (32) is sleeved on one end of the connecting rod (31). A sealing gasket (34) is provided on one end of the connecting rod (31). One end of the connecting rod (31) passes through the side wall of the sealing gasket (34) and extends into the interior. A second magnetic ring (33) matching the first magnetic ring (32) is fixedly connected to the sealing gasket (34).

4. The high-performance adapter according to claim 3, characterized in that: The bonding assembly (4) includes a bonding groove (41) disposed on a sealing gasket (34). The sealing gasket (34) has two symmetrical storage cavities (42), both of which are filled with sealing oil. The bonding groove (41) has multiple oil seepage holes (43), which are located on one side of the storage cavity (42).

5. The high-performance adapter according to claim 4, characterized in that: The moving component (5) includes a fixed rod (51) disposed in the conversion joint (1), a collar (52) is sleeved on the fixed rod (51), a diverter plate (53) is fixedly connected to the top end of the fixed rod (51), and multiple impact rods (54) are fixedly connected to the collar (52). One end of the multiple impact rods (54) is connected to multiple connecting rods (31) respectively, and multiple impact plates (55) are fixedly connected to each of the multiple impact rods (54).

6. The high-performance adapter according to claim 5, characterized in that: The connecting assembly (6) includes multiple placement slots (61) disposed on the fixed rod (51), and spring telescopic rods (62) are fixedly connected to the inner bottom of each of the multiple placement slots (61). Connecting plates (63) are fixedly connected to the upper ends of each of the multiple spring telescopic rods (62), and bending rods (64) are fixedly connected to each of the multiple connecting plates (63).

7. The high-performance adapter according to claim 6, characterized in that: The protective component (7) includes a single protective rubber ring (71) fixedly connected to one end of multiple bent rods (64), multiple protective blocks (72) fixedly connected to the protective rubber ring (71), and multiple rubber pads (73) fixedly connected to the protective rubber ring (71), with the multiple rubber pads (73) respectively located on one side of the multiple protective blocks (72).

8. The high-performance adapter according to claim 1, characterized in that: The flow guiding assembly (8) includes a flow guiding ring (81) fixedly connected to the inner wall of the conversion joint (1). The flow guiding ring (81) is located above the internal thread of the conversion joint (1). The conversion joint (1) is provided with multiple flow guiding plates (82), and the multiple flow guiding plates (82) are respectively located above the flow guiding ring (81). A crossbar (83) is fixedly connected to each of the multiple flow guiding plates (82).

9. The high-performance adapter according to claim 8, characterized in that: The rotating assembly (9) includes a rotating ring (91) disposed in the conversion joint (1), a bearing (92) is provided at the connection between the rotating ring (91) and the fixed rod (51), one end of the multiple crossbars (83) is respectively connected to the rotating ring (91), and a turbine fan blade (93) is sleeved on the bearing (92).

Citation Information

Patent Citations

  • Multi-model hydraulic rotary joint for aviation

    CN216078763U

  • Expansion joint with improved fluid tightness

    KR101521520B1