Underwater projection test device and test method for position indicating beacon

Abstract

The invention belongs to the technical field of position indicating beacon underwater tests, and particularly discloses a position indicating beacon underwater casting test device which comprises a box body, a wire passing hole is formed in the top of the box body and used for mounting a casting tool cable, a mounting hole is formed in the side face of the box body, and a lightning position mounting plate is arranged on the outer side of the mounting hole and used for mounting the casting tool cable. The lightning position mounting plate is connected with the box body through bolts; the lightning position mounting plate is used for fixing the position indicating beacon, and the position indicating beacon is fixed in the box body through the mounting hole; lifting rings are further arranged at four corners of the top of the box body, and the box body is lifted to a specified depth underwater by binding lifting ropes. According to the position indicating beacon testing device, position indicating beacons of different models can be fixed in the box body through the mounting holes formed in the side face of the box body and the detachably-connected lightning position mounting plates, so that the position indicating beacon testing device is changed into a universal device capable of being quickly changed and matched from a disposable or special tool, the test preparation work is simplified, and the cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of underwater testing technology for position beacons, and specifically relates to an underwater projectile testing device and method for position beacons. Background Technology

[0002] Position beacons are critical positioning devices installed in underwater equipment. They use the BeiDou satellite system to locate and transmit information back to the underwater equipment, playing a vital role in equipment testing and recovery. To ensure the reliability and functional integrity of position beacons in actual underwater environments, launch and positioning tests must be conducted under simulated real-world conditions to verify their signal transmission, positioning accuracy, and structural strength.

[0003] Currently, this test is usually conducted in a pool or near-shore environment. The position beacon is fixed and sunk to a specified depth using a clamp, and then its launch and positioning process is triggered by power supply. However, existing test devices are mostly designed for a single type of position beacon, which has poor versatility. Different models require different clamps, resulting in complex test preparation, high costs, and low efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects in the prior art and provide an underwater launch test device for a positioning beacon.

[0005] In a first aspect, the present invention provides an underwater launching test device for a positioning beacon, comprising a housing, a cable pass-through hole on the top of the housing for mounting a launching tool cable, mounting holes on the side of the housing, a mine positioning mounting plate disposed outside the mounting holes, the mine positioning mounting plate being bolted to the housing; the mine positioning mounting plate being used to fix the positioning beacon, and the positioning beacon being fixed inside the housing via the mounting holes; lifting rings are also disposed at the four corners of the top of the housing, for lowering the housing to a specified underwater depth by tying ropes.

[0006] A further embodiment is that a sealing plate is provided at the top of the wire hole, and the sealing plate is connected to the housing by bolts.

[0007] A further embodiment involves providing a rubber plug between the wire hole and the sealing plate.

[0008] A further embodiment is that the lightning position mounting plate is provided with an adjusting cylinder on the side near the box body, and the adjusting cylinder extends into the box body to adjust the level of the position beacon.

[0009] A further embodiment is to provide recessed holes at both the top and bottom of the adjusting cylinder, and to provide internal threads on the inner wall of the recessed holes; An adjusting nut is provided inside the recessed hole. The adjusting nut is threadedly connected to the recessed hole. A hexagonal groove is provided on the top of the adjusting nut. A pressure plate is provided on the inner wall of the adjusting cylinder. The pressure plate is an arc-shaped plate, and a push rod is provided in the middle of the pressure plate. The push rod extends into the interior of the adjusting nut and is rotatably connected to the adjusting nut.

[0010] A further embodiment is that a bearing is provided inside the adjusting nut, the outer ring of the bearing is interference-fitted with the inner wall of the adjusting nut, and the inner ring of the bearing is interference-fitted with the push rod.

[0011] A further embodiment is that a mounting groove is provided on the outside of the mounting hole, and an O-ring is provided in the mounting groove.

[0012] A second aspect of the present invention provides a method for underwater launching tests of positioning beacons, using the aforementioned apparatus, comprising the following steps: S1. Connect the female connector of the projectile cable to the male connector on the position beacon outside the housing and lock it in place. Pass the cylindrical body of the position beacon through the mounting hole and the mine position mounting plate, and pre-fix it on the mine position mounting plate. S2. Operate the adjusting nut on the adjusting cylinder to drive the pressure plate to abut against and finely adjust the posture of the position beacon cylinder until its axis is adjusted to be parallel to the horizontal plane. S3. Fix the position beacon to the mine position mounting plate, and store the connected female connector and the male connector on the position beacon inside the enclosure. S4. Lead the cable of the projectile tool out from the cable hole at the top of the box and connect it to the external equipment, and seal the cable hole; use the lifting ring at the top of the box to tie the lifting rope, and suspend the device to the specified depth of the test water area and keep it suspended and stable. S5. Power is supplied to the position beacon to trigger its launching action, and the positioning information emitted by the position beacon is received through the matching receiving device.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, through mounting holes on the side of the enclosure and a detachable mine position mounting plate, allows different models of position beacons to be fixed inside the enclosure. This transforms the position beacon testing device from a disposable or special tooling into a universal device that can be quickly adapted and changed, simplifying test preparation and reducing costs.

[0014] The adjusting cylinder of the present invention extends into the box body. Through the pressure plate and top rod structure, it can flexibly support and fine-tune the beacon outer cylinder of different diameters, ensuring that the beacon is centered and stable in the box. This makes the same test device applicable to various types of position beacons, significantly reducing the number of special tooling, and lowering the test cost and storage management complexity.

[0015] This invention features a mounting groove on the outside of the mounting hole, fitted with an O-ring seal, which is pressed tightly against the beacon mounting plate to effectively prevent water from seeping in from the beacon mounting interface. The cable passage hole has a double-sealing structure of a rubber plug and a sealing plate, allowing the projectile cable to pass through while preventing water from entering the box along the cable gaps.

[0016] The lifting rings at the four corners of the top of the box of the present invention, together with the thick nylon rope, can easily and steadily suspend the entire device to the depth specified for the test, and can adjust the suspension position as needed to simulate the pressure and suspension state of the real underwater environment.

[0017] The projectile cable of the present invention has a sufficient length reserved inside the box, and its female connector can be temporarily pulled out from the mounting hole to the outside of the box and firmly plugged into the male connector on the beacon outside the box. After confirming that the connection is correct, the cable is stuffed back into the box and fixed. This avoids the problem of difficult plugging or loose connection caused by the small space inside the box, and greatly improves the reliability of the connection. Attached Figure Description

[0018] The following figures are for illustrative purposes only and are not intended to limit the scope of the invention, wherein: Figure 1 : Schematic diagram of the structure of the present invention; Figure 2 : Schematic diagram of the position of the regulating cylinder; Figure 3 Schematic diagram of the internal structure of the regulating cylinder; Figure 4 : Schematic diagram of the assembly structure of the adjusting nut and pressure plate; Figure 5 : Schematic diagram of the usage state of this invention; In the diagram: 1. Housing; 2. Cable guide hole; 3. Sealing plate; 4. Lifting ring; 5. Mounting hole; 6. Lightning position mounting plate; 7. Adjusting cylinder; 8. Countersunk hole; 9. Adjusting nut; 10. Pressure plate; 11. Top rod; 12. Bearing; 13. Hexagonal groove; 14. O-ring seal; 15. Position beacon; 16. Rubber plug; 17. Projectile tool cable; 18. Male connector; 19. Female connector; 20. Electrical connector. Detailed Implementation

[0019] To make the objectives, technical solutions, design methods, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0020] like Figure 1 As shown, the present invention provides an underwater projectile testing device for a positioning beacon, comprising a housing 1, a cable hole 2 on the top of the housing 1 for installing a projectile tool cable 17, and mounting holes 5 on the side of the housing 1. A mine positioning mounting plate 6 is provided outside the mounting holes 5 and is bolted to the housing 1. The mine positioning mounting plate 6 is used to fix the positioning beacon 15, and the positioning beacon 15 is fixed inside the housing 1 through the mounting holes 5. Lifting rings 4 are also provided at the four corners of the top of the housing 1, and the housing 1 is lowered to a specified underwater depth by tying ropes.

[0021] In this embodiment, to ensure the airtightness of the housing 1 after the cable 17 of the projectile tool is installed, a sealing plate 3 is provided at the top of the cable passage hole 2, and the sealing plate 3 is connected to the housing 1 by bolts. Furthermore, a rubber plug 16 is provided between the cable passage hole 2 and the sealing plate 3, and the sealing plate 3 achieves a compression seal.

[0022] To ensure that the position beacon 15 is parallel to the housing 1, such as Figure 2-4 As shown, an adjusting cylinder 7 is also provided on the side of the mounting plate 6 near the housing 1. The adjusting cylinder 7 extends into the housing 1. A recessed hole 8 is provided at both the top and bottom of the adjusting cylinder 7, and an internal thread is provided on the inner wall of the recessed hole 8. An adjusting nut 9 is provided inside the recessed hole 8 and is threadedly connected to the recessed hole 8. A hexagonal groove 13 is provided at the top of the adjusting nut 9. The height of the adjusting nut 9 can be adjusted by rotating the hexagonal groove 13 with a hexagonal wrench, thereby rotating the adjusting nut 9. Since the adjusting nut 9 is located inside the recessed hole 8, in order to ensure that the adjusting cylinder 7 can smoothly enter the mounting hole 5, in this embodiment, the top of the adjusting nut 9 is lower than the upper surface of the recessed hole 8. A pressure plate 10 is provided on the inner wall of the adjusting cylinder 7. The pressure plate 10 is an arc-shaped plate, and a push rod 11 is provided in the middle of the pressure plate 10. The push rod 11 extends into the adjusting nut 9 and is rotatably connected to the adjusting nut 9. Specifically, a bearing 12 is installed inside the adjusting nut 9. The outer ring of the bearing 12 is interference-fitted with the inner wall of the adjusting nut 9, and the inner ring of the bearing 12 is interference-fitted with the push rod 11. When the height of the adjusting nut 9 changes, the position of the pressure plate 10 adjusts synchronously with the adjusting nut 9. That is, when the adjusting nut 9 moves downward, the pressure plate 10 also moves downward, which reduces the radial spacing inside the adjusting cylinder 7, making it suitable for smaller position beacons 15.

[0023] To further ensure the sealing performance of the lightning position mounting plate 6 after assembly, a mounting groove is provided on the outside of the mounting hole 5, and an O-ring is provided in the mounting groove to press and seal with the lightning position mounting plate.

[0024] like Figure 5 As shown, the testing process of this test device is as follows: the projectile cable 17 is inserted into the housing 1 through the cable hole 2. One end of the projectile cable 17 is an electrical connector 20 for connecting to the equipment on the ground; the other end of the projectile cable 17 is provided with a female connector 19, which is plugged into the male connector 18 of the position beacon 15. During connection, the projectile cable 17 pre-installed inside the housing 1 can be pulled out from the mounting hole 5, and the male connector 18 and the female connector 19 can be plugged in outside the housing 1 to ensure a secure connection. The position beacon 15 is passed through the mine-mounting plate 6 and initially fixed. The hexagonal groove 13 is used to rotate the adjusting nuts 9 at both ends of the adjusting cylinder 7, driving the top rod 11 to drive the pressure plate 10 to finely adjust the level of the beacon cylinder, making its axis parallel to the horizontal plane. The mine-mounting plate 6 is installed in the mounting hole 5 on the side of the box 1 with bolts, and the O-ring 14 in the mounting groove is pressed to achieve a seal. The entire device is lowered to the specified test depth by using the lifting rings 4 at the four corners to tie nylon ropes. Then, the electrical connector 20 of the external cable is connected to the DC regulated power supply on the ground, and the power supply is used to trigger the pyrotechnics inside the position beacon, launching the antenna device out of the water. Finally, the positioning information is obtained through the Beidou receiving equipment.

[0025] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A test device for underwater projectile launching of a positioning beacon, characterized in that, The device includes a housing (1), with a cable hole (2) on the top of the housing (1) for installing a projectile cable (17), and mounting holes (5) on the side of the housing (1). A mine position mounting plate (6) is provided outside the mounting holes (5), and the mine position mounting plate (6) is connected to the housing (1) by bolts. The mine position mounting plate (6) is used to fix a position beacon (15), and the position beacon (15) is fixed inside the housing (1) through the mounting holes (5). Lifting rings (4) are also provided at the four corners of the top of the housing (1), and the housing (1) is lowered to a specified depth underwater by tying ropes.

2. The underwater projectile test device for a positioning beacon according to claim 1, characterized in that, A sealing plate (3) is provided on the top of the wire hole (2), and the sealing plate (3) is connected to the box body (1) by bolts.

3. The underwater projectile testing device for a positioning beacon according to claim 2, characterized in that, A rubber plug (16) is also provided between the wire hole (2) and the sealing plate (3).

4. The underwater projectile testing device for a positioning beacon according to claim 1, characterized in that, An adjusting cylinder (7) is also provided on the side of the mine position mounting plate (6) near the box (1). The adjusting cylinder (7) extends into the box (1) and is used to adjust the level of the position beacon (15).

5. The underwater projectile testing device for a positioning beacon according to claim 4, characterized in that, A recessed hole (8) is provided at both the top and bottom of the adjusting cylinder (7), and an internal thread is provided on the inner wall of the recessed hole (8); An adjusting nut (9) is provided inside the recessed hole (8). The adjusting nut (9) is threadedly connected to the recessed hole (8). A hexagonal groove (13) is provided on the top of the adjusting nut (9). A pressure plate (10) is provided on the inner wall of the adjusting cylinder (7). The pressure plate (10) is an arc-shaped plate, and a top rod (11) is provided in the middle of the pressure plate (10). The top rod (11) extends into the interior of the adjusting nut (9) and is rotatably connected to the adjusting nut (9).

6. The underwater projectile testing device for a positioning beacon according to claim 5, characterized in that, The adjusting nut (9) is provided with a bearing (12) inside. The outer ring of the bearing (12) is interference-fitted with the inner wall of the adjusting nut (9), and the inner ring of the bearing (12) is interference-fitted with the push rod (11).

7. The underwater projectile testing device for a positioning beacon according to claim 1, characterized in that, An installation groove is also provided on the outside of the mounting hole (5), and an O-ring is provided in the installation groove.

8. A method for underwater projectile testing of a positioning beacon, characterized in that, Using the apparatus according to any one of claims 1-7, the steps include: S1. Connect the female connector (19) of the projectile tool cable (17) to the male connector (18) on the position beacon (15) outside the box (1) and lock it. Pass the cylindrical body of the position beacon (15) through the mounting hole (5) and the lightning position mounting plate (6) and pre-fix it on the lightning position mounting plate (6). S2. Operate the adjusting nut (9) on the adjusting cylinder (7) to drive the pressure plate (10) to abut against and finely adjust the posture of the position beacon (15) cylinder until its axis is adjusted to be parallel to the horizontal plane; S3. Fix the position beacon (15) onto the mine position mounting plate (6), and store the connected female connector (19) and the male connector (18) on the position beacon (15) inside the housing (1). S4. After the cable (17) of the projectile tool is led out from the wire hole (2) at the top of the box (1), it is connected to the external equipment and the wire hole (2) is sealed. The device is lowered to the specified depth of the test water area and suspended stably by tying the lifting rope with the lifting ring (4) at the top of the box (1). S5. Power is supplied to the position beacon (15) to trigger its launching action, and the positioning information emitted by the position beacon (15) is received through the matching receiving device.

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