A rod set connecting unit and a rod thereof

Abstract

The application provides a rod group connecting unit and a rod thereof, and relates to the technical field of rod connecting structure. The unit comprises a first pipe body and a second pipe body; one end of the first pipe body is coaxial with and butts against one end of the second pipe body; an outer connecting hole, an outer hoisting hole and an outer supporting hole are sequentially and axially provided on the first pipe body; an inner connecting hole, an inner hoisting hole and an inner supporting hole are sequentially and axially provided on the second pipe body; the outer diameter of the second pipe body is smaller than the inner diameter of the first pipe body; when the second pipe body in one rod group connecting unit is embedded into the first pipe body in another rod group connecting unit, the inner connecting hole, the inner hoisting hole and the inner supporting hole on the second pipe body correspond to the outer connecting hole, the outer hoisting hole and the outer supporting hole on the first pipe body one by one. The connecting unit provided by the application can realize high-precision depth setting, accurately transmit torque to realize angle adjustment, and has safe and reliable operation process.

Description

Technical Field

[0001] This invention relates to the field of rod connection structure technology, and in particular to a rod group connection unit and its rods. Background Technology

[0002] Dipping sonar is a type of sonar equipment that is lowered into the water by an aircraft using a winch for ocean exploration. During the product development process, extensive lake trials are required to investigate and verify its key performance indicators such as direction finding, range finding, and velocity measurement. The underwater sub-units of dipping sonar are generally large in size and mass, and lowering them to a designated depth and accurately adjusting the angle for testing is an important part of establishing a reliable testing environment.

[0003] Currently, some dipping sonar rod structures are quite complex. For example, some array rods using multi-bar mechanisms and parallelogram-based extension devices have complex structural layouts and require high machining precision. The Helras sonar extended array structure, for instance, has many rods, which not only increases the manufacturing difficulty but also results in a large radial dimension after retrieval, making it unsuitable for storage and retrieval on platforms such as helicopters, and placing significant demands on platform space. Utility Model Content

[0004] To address the positioning and connection challenges encountered during the lowering of large-mass underwater product platforms to designated depths and angles in testing, this invention provides a rod assembly connection unit and its components. This unit enables high-precision depth positioning and accurate torque transmission for angle adjustment, while also offering safe, reliable, and convenient operation.

[0005] The first objective of this invention is to provide a rod assembly connection unit, comprising a first tube and a second tube; One end of the first tube is coaxial with and connected to one end of the second tube; Along the axial direction, the first tube body is provided with an external connection hole, an external hoisting hole, and an external support hole in sequence; The second tube body has an internal connection hole, an internal lifting hole, and an internal support hole sequentially opened along the axial direction; The outer diameter of the second tube is smaller than the inner diameter of the first tube; When the second tube in one of the rod assembly connection units is embedded in the first tube in another rod assembly connection unit, the inner connecting hole, inner lifting hole and inner support hole on the second tube correspond one-to-one with the outer connecting hole, outer lifting hole and outer support hole on the first tube.

[0006] Preferably, the axes of the external connecting hole, the external lifting hole, and the external support hole are all perpendicular to the axis of the first pipe body; The axes of the inner connecting hole, the inner lifting hole, and the inner support hole are all perpendicular to the axis of the second pipe body.

[0007] Preferably, the axes of the outer connecting hole and the inner connecting hole are in the same plane and are arranged in parallel. The axes of the outer lifting hole and the inner lifting hole are on the same plane and are set in parallel.

[0008] Preferably, the axes of the external connecting hole and the external support hole are in the same plane and are arranged in parallel.

[0009] Preferably, the external connecting hole is perpendicular to the axis of the external lifting hole.

[0010] A second objective of this invention is to provide a rod comprising a plurality of rod assembly connection units that are sequentially nested together.

[0011] When two adjacent rod groups are connected by a sleeve, it includes: The second tube in an adjacent rod group connection unit is embedded in the first tube in another rod group connection unit, and the inner connection hole, inner hoisting hole and inner support hole on the second tube correspond one-to-one with the outer connection hole, outer hoisting hole and outer support hole on the first tube. The outer connecting hole and the inner connecting hole, the outer lifting hole and the inner lifting hole, and the outer support hole and the inner support hole are all connected by tapered pins.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides a rod assembly connection unit and its rods. This unit can achieve high-precision depth control and accurately transmit torque for angle adjustment, while also being safe, reliable, and easy to operate. The unit has a simple structure, is easy to assemble, and has high positioning accuracy, making it suitable for lowering large objects. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the rod assembly connection unit; Figure 2 This is a cross-sectional view of the rod assembly connection unit. Detailed Implementation

[0014] The following describes several specific embodiments of the present invention in detail, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0015] The purpose of this invention is to provide a rod assembly connection unit and its components, which can solve the positioning and connection problem when lowering a large-mass underwater product platform to a specified depth and angle position during testing. It consists of an outer connecting hole, an outer lifting hole, an outer support hole, a rod body, an inner connecting hole, an inner lifting hole, and an inner support hole. The outer connecting hole, outer lifting hole, outer support hole, rod body, inner connecting hole, inner lifting hole, and inner support hole constitute a nested mechanical interface. This invention features simple structure, high positioning accuracy, and safe and reliable operation.

[0016] See Figures 1-2 As shown, a rod assembly connection unit includes a first tube 4-1 and a second tube 4-2; one end of the first tube 4-1 is coaxial with and connected to one end of the second tube 4-2; the first tube 4-1 has an external connecting hole 1, an external lifting hole 2, and an external support hole 3 sequentially extending along the axial direction; the second tube 4-2 has an internal connecting hole 5, an internal lifting hole 6, and an internal support hole 7 sequentially extending along the axial direction; the outer diameter of the second tube 4-2 is smaller than the inner diameter of the first tube 4-1; when the second tube 4-2 in one rod assembly connection unit is embedded in the first tube 4-1 in another rod assembly connection unit, the internal connecting hole 5, the internal lifting hole 6, and the internal support hole 7 on the second tube 4-2 correspond one-to-one with the external connecting hole 1, the external lifting hole 2, and the external support hole 3 on the first tube 4-1.

[0017] The connecting unit provided by this invention can achieve high-precision depth control and accurately transmit torque to achieve angle adjustment, while also being safe, reliable, and easy to operate.

[0018] The axes of the external connecting hole 1, the external hoisting hole 2, and the external support hole 3 are all perpendicular to the axis of the first tube body 4-1. The axes of the inner connecting hole 5, the inner lifting hole 6, and the inner support hole 7 are all perpendicular to the axis of the second tube body 4-2.

[0019] The axes of the outer connecting hole 1 and the inner connecting hole 5 are in the same plane and are arranged in parallel. The axes of the outer hoisting hole 2 and the inner hoisting hole 6 are on the same plane and are set in parallel.

[0020] The axes of the external connecting hole 1 and the external support hole 3 are on the same plane and are arranged in parallel.

[0021] The external connecting hole 1 is perpendicular to the axis of the external hoisting hole 2.

[0022] The present invention also provides a rod member comprising a plurality of rod assembly connection units that are sequentially sleeved together.

[0023] When two adjacent rod groups are connected by a sleeve, it includes: The second tube 4-2 in an adjacent rod group connection unit is embedded in the first tube 4-1 in another rod group connection unit, and the inner connection hole 5, inner hoisting hole 6 and inner support hole 7 on the second tube 4-2 correspond one-to-one with the outer connection hole 1, outer hoisting hole 2 and outer support hole 3 on the first tube 4-1. The outer connecting hole 1 and the inner connecting hole 5, the outer lifting hole 2 and the inner lifting hole 6, and the outer support hole 3 and the inner support hole 7 are all connected by tapered pins, which also serve to center the inner and outer connecting holes. The pin ends are threaded and are prevented from falling off by installing nuts.

[0024] To further illustrate the rod assembly connection unit provided by the present invention, see [link to relevant documentation]. Figures 1-2 As shown, a rod assembly connection unit comprises a first tube 4-1, a second tube 4-2 coaxially connected to it, and an outer connecting hole 1, an outer lifting hole 2, an outer support hole 3, a rod 4, an inner connecting hole 5, an inner lifting hole 6, and an inner support hole 7. The diameter and wall thickness of the connection unit are designed according to the actual load-bearing weight, ensuring that the inner diameter of the large cross-section end of the rod 4 is larger than the outer diameter of the small cross-section end, allowing the small cross-section end to be embedded inside the large cross-section end. The outer connecting hole 1 and the inner connecting hole 5 of adjacent rod connection units are coaxial, the outer lifting hole 2 and the inner lifting hole 6 are coaxial, and the outer support hole 3 and the inner support hole 7 are coaxial. For ease of operation, the axes of the outer connecting hole 1 and the inner connecting hole 5 can be designed to be parallel, the outer lifting hole 2 and the inner lifting hole 6 can be parallel, the outer support hole 3 and the inner support hole 7 can be parallel, and the axes of the outer connecting hole 1 and the outer lifting hole 2 can be perpendicular.

[0025] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A rod assembly connection unit, characterized in that, Including a first tube body (4-1) and a second tube body (4-2); One end of the first tube (4-1) is coaxial with and connected to one end of the second tube (4-2); Along the axial direction, the first tube body (4-1) is provided with an external connection hole (1), an external hoisting hole (2) and an external support hole (3). Along the axial direction, the second tube body (4-2) is provided with an inner connecting hole (5), an inner lifting hole (6) and an inner support hole (7). The outer diameter of the second tube (4-2) is smaller than the inner diameter of the first tube (4-1); When the second tube (4-2) in one of the rod group connection units is embedded in the first tube (4-1) in another rod group connection unit, the inner connection hole (5), inner hoisting hole (6) and inner support hole (7) on the second tube (4-2) correspond one-to-one with the outer connection hole (1), outer hoisting hole (2) and outer support hole (3) on the first tube (4-1).

2. The rod assembly connection unit according to claim 1, characterized in that, The axes of the external connecting hole (1), the external hoisting hole (2) and the external support hole (3) are all perpendicular to the axis of the first tube body (4-1); The axes of the inner connecting hole (5), the inner lifting hole (6), and the inner support hole (7) are all perpendicular to the axis of the second tube body (4-2).

3. The rod assembly connection unit according to claim 1, characterized in that, The axes of the outer connecting hole (1) and the inner connecting hole (5) are in the same plane and are arranged in parallel. The axes of the outer hoisting hole (2) and the inner hoisting hole (6) are on the same plane and are set in parallel.

4. The rod assembly connection unit according to claim 1, characterized in that, The axes of the external connecting hole (1) and the external support hole (3) are in the same plane and are set in parallel.

5. The rod assembly connection unit according to claim 1, characterized in that, The external connecting hole (1) is perpendicular to the axis of the external hoisting hole (2).

6. A rod, characterized in that, The rod includes a plurality of rod assembly connection units as described in any one of claims 1 to 5, which are sequentially nested together.

7. The rod according to claim 6, characterized in that, When two adjacent rod groups are connected by a sleeve, it includes: The second tube (4-2) in an adjacent rod group connection unit is embedded in the first tube (4-1) in another rod group connection unit, and the inner connection hole (5), inner hoisting hole (6) and inner support hole (7) on the second tube (4-2) correspond one-to-one with the outer connection hole (1), outer hoisting hole (2) and outer support hole (3) on the first tube (4-1); Among them, the outer connecting hole (1) and the inner connecting hole (5), the outer hoisting hole (2) and the inner hoisting hole (6), and the outer support hole (3) and the inner support hole (7) are all connected by tapered pins.

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