Direct start release type recovery device for underwater detection equipment

Abstract

The utility model discloses a direct-starting release type recovery device for underwater detection equipment, which comprises a mounting base, a buoyancy component and a direct-starting release mechanism, and is mounted on the underwater detection equipment through the mounting base; the buoyancy component is arranged on the mounting base, and a recovery cable is wound on the buoyancy component; the direct opening type releasing mechanism comprises an unlocking assembly and a direct opening type lock pin, and the unlocking assembly is arranged on the mounting base; the direct opening type lock pin is connected with the unlocking assembly, one end of the direct opening type lock pin extends into the positioning hole of the buoyancy component, and the unlocking assembly drives the direct opening type lock pin to retreat from the positioning hole of the buoyancy component so as to release the buoyancy component. The recovery device is suitable for different types of underwater detection equipment, and can realize quick release of the buoyancy component, so that the recovery efficiency of the underwater detection equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater detection equipment recovery, in particular to a direct-start release type recovery device for underwater detection equipment. Background Art

[0002] Underwater detection technology is subject to numerous uncontrollable factors. When underwater detection equipment malfunctions or requires hardware upgrades, the entire system must be recovered and brought back to land for repair and upgrade. As we all know, the underwater environment is complex, unpredictable, and the safe recovery of underwater detection equipment is crucial.

[0003] Existing recovery methods fall roughly into two categories. The first involves using an underwater robot to dive directly near the underwater detection equipment, connect it to the equipment with a cable, and then use the cable on a ship-borne recovery device to recover and repair the underwater detection equipment. This recovery method is expensive, requires a large number of personnel, and is time-consuming. The other method uses the underwater detection equipment's own recovery device. A control signal sends a recovery command, and a buoy or bucket on the recovery device brings the recovery cable to the surface. The underwater control and detection equipment is then retracted using ship-borne equipment.

[0004] Underwater detection equipment varies in shape, size, and weight, requiring the production of different recovery devices. This creates significant inconvenience in the overall system design and engineering application. Therefore, there is an urgent need to develop a universal, reliable recovery device that can accommodate various sizes and styles of underwater detection equipment and improve recovery efficiency.

[0005] Most of the recovery devices carried by existing underwater detection equipment use a float as the main recovery component, the float is connected to the release device below, and the cable is also located below the float. The recovery device with this structural design has the following disadvantages: the center of gravity of the device is too high and the volume is large (the float and the recovery cable need to be distributed in different spaces), which is not conducive to its being carried on some light underwater detection equipment. Based on this, a recovery device that can be carried on underwater detection equipment is needed. Utility Model Content

[0006] In response to the above problems, the utility model provides a direct-start release recovery device for underwater detection equipment, which uses a buoy as the main recovery component. The recovery cable is wrapped around the cylinder and fixed to the side of the buoy through a direct-start release mechanism. The center of gravity of the overall recovery device is centered, and the buoy is released by a direct-start release method combining a lever and a spring. It has the characteristics of precise control, strong reliability, and rapid release of the buoy.

[0007] Specifically, the utility model is achieved as follows:

[0008] A direct-start release recovery device for underwater detection equipment, comprising:

[0009] Installation base, installed on underwater detection equipment;

[0010] a buoyancy component, provided on the mounting base, with a recovery cable wound around it, the recovery cable being connected to the mounting base or to the underwater detection equipment;

[0011] a direct-opening release mechanism, provided on the mounting base, for releasing the buoyancy component so that the buoyancy component floats upward under the action of buoyancy;

[0012] The direct-opening release mechanism comprises:

[0013] An unlocking component, provided on the mounting base;

[0014] The direct-opening lock pin is connected to the unlocking assembly, and one end of the direct-opening lock pin extends into the positioning hole of the buoyancy component. The unlocking assembly drives the direct-opening lock pin to exit the positioning hole of the buoyancy component to release the buoyancy component.

[0015] Furthermore, the unlocking component includes:

[0016] a shell, located on one side of the buoyancy component;

[0017] A lever pin unit is provided in the housing, the direct-opening lock pin laterally passes through the housing and is inserted into the positioning hole of the buoyancy component, and the direct-opening lock pin is movably connected to the lever pin unit;

[0018] A spring drive unit is provided at an end of the direct-opening lock pin away from the buoyancy component, wherein the spring of the spring drive unit is in a compressed state when the direct-opening lock pin is inserted into the positioning hole of the buoyancy component;

[0019] A locking unit connected to the lever pin unit, which limits the movement of the lever pin unit when the locking unit is opened;

[0020] When the locking unit is closed, the restriction on the lever pin unit is released. At this time, the spring of the spring driving unit rebounds, driving the direct-opening lock pin to move laterally, and the direct-opening lock pin exits the positioning hole of the buoyancy component.

[0021] Furthermore, the lever detent unit includes:

[0022] A detent rod, the top of which is a U-shaped notch and the lower end is connected to the locking unit;

[0023] A pin-pushing rod support is provided in the housing, wherein the connection between the pin-pushing rod and the pin-pushing rod support is a fulcrum, forming a lever mechanism, and a short lever arm is above the fulcrum and a long lever arm is below the fulcrum;

[0024] The latch is fixedly arranged on the direct-opening lock pin. In the locked state, its bottom end extends into the U-shaped groove of the pin lever. When the locked state is released, the direct-opening lock pin moves horizontally to drive the latch to move, and the latch exits the U-shaped groove of the pin lever and rotates it at the same time.

[0025] Furthermore, a fixing pin is provided at the lower part of the latch, and in the locked state, the fixing pin is located in the U-shaped slot of the pin lever; when the locked state is released, the direct-opening lock pin moves laterally to drive the fixing pin to move, and the fixing pin exits the U-shaped slot of the pin lever while driving it to rotate.

[0026] Furthermore, a locking ring groove is provided at the bottom end of the detent rod, and the locking ring groove has openings on both sides.

[0027] The locking unit comprises:

[0028] The rotating shaft has a pin fixed on its top, which extends into the locking ring groove. The length of the pin is adapted to the inner diameter of the locking ring groove. When the pin rotates to be collinear with the opening, the direct-acting lock pin drives the pin lever to rotate around the fulcrum, and the pin exits the locking ring groove from the opening of the locking ring groove;

[0029] The output end of the driving member is connected to the rotating shaft and is used to drive the rotating shaft to rotate.

[0030] Furthermore, the locking unit further includes:

[0031] A transition connecting cylinder, wherein the rotating shaft is arranged in the transition connecting cylinder;

[0032] A watertight electronic compartment is connected to the bottom end of the transition connection cylinder. The driving component is arranged in the watertight electronic compartment. A watertight joint is provided at the bottom of the watertight electronic compartment. The power supply and communication lines of the driving component are connected to the external underwater communication cable through the watertight joint.

[0033] Furthermore, the spring drive unit includes:

[0034] The spring guide rod is fixedly connected to the end of the direct-opening lock pin away from the buoyancy component. The spring is sleeved on the side of the shell away from the buoyancy component, and the end away from the direct-opening lock pin is fixedly connected to the spring guide rod through a spring compression piece. When the spring rebounds, it drives the spring guide rod and the direct-opening lock pin to move in the direction away from the buoyancy component.

[0035] Furthermore, a spring sleeve is provided on a side of the shell away from the buoyancy component, and the spring is located in the spring sleeve.

[0036] Furthermore, a safety lock pin is provided on the mounting base, and the safety lock pin is coaxial with the direct-opening lock pin and is respectively located on both sides of the buoyancy component.

[0037] Furthermore, two support rods are provided on the mounting base, a support area of ​​the buoyancy component is formed between the two support rods, and the buoyancy component is placed on the support area.

[0038] The working principle of this utility model:

[0039] The device is installed on the underwater detection equipment through the installation base 1, and the driving member is connected to the underwater detection equipment through a watertight cable. When the underwater detection equipment is recovered, the driving member is actuated to drive the rotating shaft 41 to rotate. At this time, the pin shaft 42 at the top of the rotating shaft 41 rotates to be collinear with the openings on both sides of the bottom of the pin rod 37, releasing the restriction on the pin rod 37. At this time, the spring of the spring drive unit rebounds, driving the spring guide rod 36 and the direct-opening lock pin 42 to make linear motion. At this time, the lower fixing pin 322 of the latch 321 thereon disengages from the U-shaped notch of the pin rod, and 371 simultaneously drives the pin rod 37. The pin rod 37 rotates around the fulcrum, the latch 321 disengages from the pin rod 37, and the direct-opening lock pin 32 exits the positioning hole on the side wing plate of the buoyancy component. Under the action of buoyancy, the buoyancy component floats up. At the same time, under the towing action of the underwater detection equipment, the buoyancy component rotates in a rotating state and gradually releases the recovery cable 21.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] (1) The recovery device provided by the present invention can be carried on underwater detection equipment. It has the characteristics of small size, central center of gravity and stability. It is suitable for different forms of underwater detection equipment and can effectively improve the recovery efficiency of underwater detection equipment.

[0042] (2) The direct-opening release mechanism is located on one side of the buoy and releases the buoy through a direct-opening structure, which effectively reduces the constraints on the buoy and allows it to quickly detach under the action of buoyancy when released.

[0043] (3) A safety lock pin is provided on the opposite side of the direct-start release mechanism as a safety protection measure, which can prevent the float bucket from being separated from the device body due to unexpected factors such as vibration before entering the water, thereby reducing unreliable situations. At the same time, when one end of the direct-start release mechanism is released, the float will be offset, and a lever effect will also be generated, relying on the buoyancy to quickly pry the float out of the installation base. The buoyancy can realize the rapid separation of the safety lock pin end, thereby ensuring the separation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a left side axonometric view of the direct-opening and releasing recovery device for underwater detection equipment in Example 1;

[0045] Figure 2 This is a right side isometric view of the direct-opening and releasing recovery device for underwater detection equipment in Example 1;

[0046] Figure 3Schematic diagram of the structure of the direct-opening release mechanism in Example 1;

[0047] Figure 4 This is a schematic diagram of the structure of the unlocking component in Example 1;

[0048] Figure 5 This is a schematic diagram of the structure of the unlocking component in the unlocked state in Example 1;

[0049] Figure 6 Schematic diagram of the structure of the spring in Example 1;

[0050] Figure 7 Schematic diagram of the structure of the direct-opening lock pin in Example 1;

[0051] Figure 8 Schematic diagram of the structure of the pin lever in Example 1;

[0052] Figure 9 This is a front view of the pin lever in Example 1;

[0053] Figure 10 Schematic diagram of the structure of the rotating shaft in Example 1;

[0054] Figure 11 This is a schematic diagram of the bottom structure of the rotating shaft in Example 1;

[0055] Figure 12 Schematic diagram of the structure of the safety lock pin in Example 1;

[0056] Figure 13 It is a cross-sectional view of the safety lock pin in Example 1.

[0057] Reference numerals:

[0058] 1-mounting base; 11-support rod; 2-buoy; 21-recovery cable; 3-direct-opening release mechanism; 31-housing; 32-direct-opening lock pin; 321-fastener; 322-fixing pin; 33-spring sleeve; 34-wave spring; 35-spring compression member; 36-spring guide rod; 37-pull pin rod; 371-U-shaped notch; 372-locking ring groove; 38-pull pin rod support; 4-transition connection cylinder; 41-rotating shaft; 42-pin shaft; 5-watertight electronic compartment; 51-motor; 52-spare battery; 53-watertight joint; 54-underwater communication cable; 6-safety lock pin; 61-front shell; 62-rear shell; 63-locating pin. DETAILED DESCRIPTION

[0059] The present invention will be further described in detail below through specific implementations in conjunction with the accompanying drawings.

[0060] Example 1

[0061] like Figure 1-2As shown, the present invention provides a direct-actuation release recovery device for underwater detection equipment, comprising: a mounting base 1, a buoy 2, a direct-actuation release mechanism 3, and a safety lock pin 6. The recovery device is assembled entirely on the mounting base 1 and is then mounted on the underwater detection equipment via the mounting base 1. After installation, the direct-actuation release mechanism 3 and the safety lock pin 6 are coaxially located. Two coaxial pins are used to simultaneously secure the buoy 2, improving its underwater mobility.

[0062] The mounting base 1 is a simple frame structure consisting of a mounting base, a mounting pedestal, and two support rods 11 above the base. To suit the structural requirements of underwater detection equipment, various material profiles can be used. The two support rods 11 jointly support the buoy 2, reducing excessive constraints. Once unlocked, the buoy 2 rises directly to the surface under the action of buoyancy and the tension of the recovery cable 21, allowing for easy release and quick detachment.

[0063] The buoy 2 has arc-shaped heads at both ends, and its pressure-resistant structure can withstand great external pressure. Annular wing plates are provided at both ends of the cylinder to fix the coiling of the recovery cable 21. Waist-shaped positioning holes are provided under the wing plates on both sides for positioning and locking the direct-opening release mechanism 3 and the safety lock pin 6. The buoy 2 is made of different materials according to the weight requirements of the underwater detection equipment. Light metals such as 6061T6 aluminum alloy and titanium alloy can be used. The recovery cable 21 is made of Kevlar fiber cable, which has low density and high strength, effectively reducing the additional load of the underwater detection equipment. The recovery cable 21 is coiled in layers, which can be quickly released during the release and floating process of the buoy 2, and is not easy to get tangled.

[0064] like Figure 3-4 As shown, the direct-start release mechanism includes: an unlocking component and a direct-start lock pin 32. The unlocking component is assembled through the shell 31, the transition connection cylinder 4 and the watertight electronic compartment 5. The shell 31 has a built-in lever pin unit. The direct-start lock pin 32 passes through the shell 31 horizontally, and one end close to the buoy 2 extends into the waist-shaped positioning hole of the wing plate of the buoy 2, and the other end is fixedly connected to the spring drive unit. The part inside the shell 31 is connected to the lever pin unit. After the lever pin unit is released from the locked state, the spring drive unit is activated, driving the direct-start lock pin 32 to move horizontally and exit the waist-shaped positioning hole of the wing plate of the buoy 2, thereby releasing the buoy 2.

[0065] Specifically, the spring drive unit includes a spring housing 33, a spring guide rod 36, a wave spring 34, and a spring compression member 35. The spring housing 33 is located on the side of the housing 31 away from the buoy 2. The wave spring 34 is located within the spring housing 33 and is compressed by a spring compression member 35. The spring compression member 35 is fixedly connected to the spring guide rod 36. The spring guide rod 36 passes through the wave spring 34 and is fixedly connected to the direct-actuation lock pin 31. After the lever detent unit is unlocked, the wave spring 34 rebounds, and under the action of the spring compression member 35, it drives the spring guide rod 36 and the direct-actuation lock pin 31 to move laterally, exiting the waist-shaped positioning hole in the wing of the buoy 2 and releasing the buoy 2. The spring adopts a wave spring structure design, ensuring sufficient rebound force within a limited travel range to return the direct-actuation lock pin 31 to its original position and unlock it. It is suitable for applications requiring weight reduction and those constrained by small installation space. The appropriate driving force and travel can be adjusted by varying the height, width, and thickness of the wave crest.

[0066] The lever pinning unit includes: a pinning rod 37, a pinning rod support 38 and a snap member 321, as shown in FIG. Figure 6-8 As shown, the latch 321 is fixedly mounted on the direct-acting lock pin 32, with a fixing pin 322 provided at the bottom. A detent rod support 38 is disposed within the housing 31, and the detent rod 37 is connected to the detent rod support 38. The connection point serves as a fulcrum, forming a lever mechanism with a short lever arm above the fulcrum and a long lever arm below. The detent rod 37 has a U-shaped notch 371 at its top and a locking ring groove 372 at its bottom. The locking ring groove 372 has openings on both sides. In the locked state, the fixing pin 322 is located within the U-shaped notch 371, and the locking unit extends into the locking ring groove 372. When the locking unit is unlocked, the wave spring 34 rebounds, driving the direct-acting lock pin 32 to move laterally. Simultaneously, the fixing pin 322 of the latch 321 drives the detent rod 37 to swing out of the U-shaped notch 371, and the bottom locking unit withdraws from the opening of the locking ring groove 372. The utility model makes full use of the lever principle, and the wave spring 34 is used as the driving force for direct release, which controls large forces with small forces, thereby achieving the effect of controlling precise and stable displacement, and ensuring that the buoy 2 can be effectively released.

[0067] The locking unit includes: a rotating shaft 41 and a motor 51. The rotating shaft 41 is mounted on the transition connecting cylinder 4 through a fixing member, and the lower end is mounted on the side of the cover of the watertight electronic compartment 5 and is sealed by two O-rings. Figure 9-10As shown, the upper end of the rotating shaft 41 is a pin 42, which is in the shape of a key pin. The length of the pin 42 is adapted to the inner diameter of the locking ring groove 372 to ensure that it can rotate in the locking ring groove 372. The bottom end of the rotating shaft 41 is a shaft hole with a key groove. A motor 51 and a backup battery 52 are provided in the watertight electronic compartment 5. The motor 51 serves as a driving component and is connected to the shaft hole with a key groove at the bottom end of the rotating shaft 41 to drive the pin 42 to rotate. When the pin 42 rotates to be collinear with the opening of the locking ring groove 372, the locked state is released, the wave spring 34 rebounds, and the direct-opening lock pin 32 moves laterally, driving the fixed pin 322 of the latch 321 to move the pin lever 37 around the fulcrum, and the pin 42 withdraws from the opening of the locking ring groove 372.

[0068] A watertight joint 53 is provided at the bottom of the watertight electronic compartment 5. The motor 51 is encapsulated in the watertight electronic compartment 5 to ensure its reliable operation. The motor 51 is connected to the underwater detection equipment through the watertight joint 53 and the underwater communication cable 54 to realize the transmission of external commands and control the opening and closing of the motor 51.

[0069] Furthermore, if Figure 12-13 As shown, the safety lock pin 6 is installed on the opposite side of the direct-opening lock pin 32 through the front shell 61, the rear shell 62 and the positioning pin 63, as a safety protection measure for the buoy 2, which can prevent the buoy 2 from detaching from the device body due to unexpected factors such as vibration before entering the water, thereby improving reliability.

[0070] When the cam 37 is released, the motor 51 is actuated to drive the rotating shaft 41 to rotate, and the pin 42 at the top of the rotating shaft 41 rotates to be collinear with the openings on both sides of the bottom of the locking ring groove 372, thereby releasing the restriction on the pin lever 37. At this time, the wave spring 34 rebounds, driving the spring guide rod 36 and the direct-opening lock pin 32 to make a horizontal linear motion. At this time, the fixing pin 322 at the lower part of the latch 321 thereon toggles the pin lever 37, and the pin lever 37 rotates around the fulcrum, and the fixing pin 322 withdraws from the U-shaped notch 371 of the pin lever 37, and the direct-opening lock pin 32 withdraws from the waist-shaped positioning hole on the side wing plate of the buoy 2. Under the action of buoyancy, the buoy 2 rises near the side of the opening lock pin 32, causing the buoy 2 to deflect, and at the same time, a lever action is generated, relying on buoyancy to quickly disengage the buoy 2 from the safety lock pin 6. At the same time, under the towing action of the underwater detection equipment, the buoy 2 is in a rotating state and gradually releases the recovery cable 21.

[0071] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A direct-release recovery device for underwater detection equipment, characterized in that: include: A mounting base (1) mounted on the underwater detection equipment; A buoyancy component is provided on the mounting base (1) and has a recovery cable (21) wound around it; A direct-opening release mechanism is provided on the mounting base (1) and is used to release the buoyancy component so that the buoyancy component floats upward under the action of buoyancy; The direct-opening release mechanism comprises: An unlocking assembly, provided on the mounting base (1); A direct-opening lock pin (32) is connected to the unlocking assembly, one end of which extends into the positioning hole of the buoyancy component. The unlocking assembly drives the direct-opening lock pin (32) to exit the positioning hole of the buoyancy component to release the buoyancy component.

2. The direct-opening and releasing recovery device for underwater detection equipment according to claim 1, characterized in that: The unlocking component includes: A housing (31) is located on one side of the buoyancy component; A lever pin unit is provided in the housing (31); the direct-acting lock pin (32) is inserted into the positioning hole of the buoyancy component after passing through the housing (31) in the horizontal direction; the direct-acting lock pin (32) is movably connected to the lever pin unit; A spring drive unit is provided at one end of the direct-opening lock pin (32) away from the buoyancy component, and when the direct-opening lock pin (32) is in a state of being inserted into the positioning hole of the buoyancy component, the spring of the spring drive unit is in a compressed state; A locking unit connected to the lever pin unit, which limits the movement of the lever pin unit when the locking unit is opened; When the locking unit is closed, the restriction on the lever pin unit is released, and at this time the spring of the spring drive unit rebounds, driving the direct-start lock pin (32) to move laterally, and the direct-start lock pin (32) exits the positioning hole of the buoyancy component.

3. The direct-opening and releasing recovery device for underwater detection equipment according to claim 2, characterized in that: The lever detent unit comprises: A pin lever (37) having a U-shaped notch at its top and a lower end connected to the locking unit; A pin-pushing rod support (38) is provided in the housing (31), wherein the connection between the pin-pushing rod (37) and the pin-pushing rod support (38) is a fulcrum, forming a lever mechanism, wherein the upper portion of the fulcrum is a short lever arm, and the lower portion is a long lever arm; The latch (321) is fixedly arranged on the direct-opening lock pin (32). In the locked state, the bottom end of the latch extends into the U-shaped notch (371) of the pin lever (37). When the locked state is released, the direct-opening lock pin (32) moves laterally to drive the latch (321) to move. The latch (321) exits the U-shaped notch (371) and rotates while rotating.

4. The direct-opening and releasing recovery device for underwater detection equipment according to claim 3, characterized in that: A fixing pin (322) is provided at the lower portion of the latch (321). In the locked state, the fixing pin (322) is located in the U-shaped notch (371). When the locked state is released, the direct-acting lock pin (32) moves laterally to drive the fixing pin (322) to move, and the fixing pin (322) exits the U-shaped notch (371) while rotating it.

5. The direct-opening and releasing recovery device for underwater detection equipment according to claim 3 or 4, characterized in that: A locking ring groove (372) is provided at the bottom end of the detent rod (37), and both sides of the locking ring groove (372) are open; The locking unit comprises: A rotating shaft (41) is fixed with a pin shaft (42) on its top, which extends into the locking ring groove (372). The length of the pin shaft (42) is adapted to the inner diameter of the locking ring groove (372). When the pin shaft (42) rotates to be collinear with the opening, the direct-start lock pin (32) drives the pin lever (37) to rotate around the fulcrum, and the pin shaft (42) exits the locking ring groove (372) from the opening of the locking ring groove (372). A driving member is connected to the rotating shaft (41) and is used to drive the rotating shaft (41) to rotate.

6. The direct-opening and releasing recovery device for underwater detection equipment according to claim 5, characterized in that: The locking unit further includes: A transition connection cylinder (4), wherein the rotating shaft (41) is arranged in the transition connection cylinder (4); The watertight electronic compartment (5) is connected to the bottom end of the transition connection cylinder (4), the driving component is arranged in the watertight electronic compartment (5), and a watertight joint (53) is provided at the bottom of the watertight electronic compartment (5).

7. The direct-opening and releasing recovery device for underwater detection equipment according to claim 2, characterized in that: The spring drive unit comprises: The spring guide rod (36) is fixedly connected to the end of the direct-start lock pin (32) away from the buoyancy component. The spring is sleeved on the side of the housing (31) away from the buoyancy component, and the end away from the direct-start lock pin (32) is fixedly connected to the spring guide rod (36) through a spring pressing member (35). When the spring rebounds, it drives the spring guide rod (36) and the direct-start lock pin (32) to move in a direction away from the buoyancy component.

8. The direct-opening and releasing recovery device for underwater detection equipment according to claim 7, characterized in that: A spring sleeve (33) is provided on a side of the housing (31) away from the buoyancy component, and the spring is located in the spring sleeve (33).

9. The direct-opening and releasing recovery device for underwater detection equipment according to claim 1, characterized in that: A safety lock pin (6) is provided on the mounting base (1), and the safety lock pin (6) is coaxial with the direct-opening lock pin (32) and is respectively located on both sides of the buoyancy component.

10. The direct-opening and releasing recovery device for underwater detection equipment according to claim 1, characterized in that: Two support rods (11) are provided on the mounting base (1), a support area for the buoyancy component is formed between the two support rods (11), and the buoyancy component is placed on the support area.

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