Emergency load rejection device for underwater robot

Abstract

The utility model provides an emergency load rejection device for an underwater robot. The emergency load rejection device comprises a base, a buoyancy tank is fixedly arranged on the base, an electric push rod is arranged in the buoyancy tank, a clamping head is arranged at the end of a telescopic rod of the electric push rod, a balancing weight is arranged on the clamping head in a clamped mode, and the end of a connecting rod in the balancing weight abuts against the interior of the clamping head. The buoyancy box provides buoyancy for the underwater robot, the telescopic rod of the electric push rod is clamped with the balancing weight through the clamping head, the gravity of the balancing weight is larger than the buoyancy of the buoyancy box, when the balancing weight is clamped, the whole device can sink, and when the electric push rod acts to enable the balancing weight to be separated, the whole device can float under the action of the buoyancy box; and the underwater robot can conveniently and actively float upwards when having a fault and losing communication, and extra work is reduced.

Description

Technical Field

[0001] The utility model relates to the field of underwater robots, in particular to an emergency load-releasing device for underwater robots. Background Art

[0002] Underwater robots usually have to dive underwater to perform various operations. Due to the complex underwater environment, some underwater robots will lose contact after a malfunction underwater. People on shore cannot control their return, and the workload of positioning and salvaging is also very large. Therefore, underwater robots need a device that can automatically float up in unexpected situations. Utility Model Content

[0003] The main purpose of the utility model is to provide an emergency jettisoning device for an underwater robot to solve the problems in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: it includes a base, a floating box is fixedly provided on the base, an electric push rod is arranged in the floating box, a clamping joint is provided at the end of the telescopic rod of the electric push rod, a clamping counterweight block is provided on the clamping joint, and the end of the connecting rod in the counterweight block is abutted against the clamping joint.

[0005] Preferably, a mounting seat is fixedly provided on one side of the base, and the mounting seat is mounted on the underwater robot by bolts.

[0006] Preferably, the peripheral side of the buoyancy box is fixedly connected to the base by a plurality of bolts, and the electric push rod is installed on the base.

[0007] Preferably, connecting seats are fixedly provided on both sides of the end of the card joint, and the connecting seats are connected to the ends of the telescopic rod of the electric push rod through a pin shaft.

[0008] Preferably, a through hole is provided on the card joint, a card slot connected to the through hole is provided on one side of the through hole, limiting slots are provided on both sides of the connecting rod, the end of the connecting rod abuts against the through hole, and the limiting slot abuts against the card slot.

[0009] Preferably, the outer diameter of the connecting rod is smaller than the inner diameter of the through hole and larger than the width of the slot;

[0010] The width of the card slot matches the width of the limiting slot.

[0011] The utility model provides an emergency load-dropping device for an underwater robot. A buoyancy box provides buoyancy for the underwater robot. A telescopic rod of an electric push rod is clamped to a counterweight block through a clamping joint. The gravity of the counterweight block is greater than the buoyancy of the buoyancy box. When the counterweight block is stuck, the entire device can sink. When the electric push rod is actuated to disengage the counterweight block, the entire device can float under the action of the buoyancy box. This facilitates the underwater robot to actively float when it fails and loses connection, thereby reducing extra work. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 It is an axial side view of the overall structure of the utility model;

[0014] Figure 2 This utility model Figure 1 Exploded view of;

[0015] Figure 3 This is an exploded view of the connection between the counterweight block and the electric push rod of the utility model;

[0016] Figure 4 This is the axial side view of the card joint of the utility model;

[0017] Figure 5 This is a side view of the connecting axis between the clamping joint and the counterweight block of the utility model;

[0018] In the figure: counterweight 1; connecting rod 101; limiting groove 102; buoyancy box 2; mounting seat 3; base 4; electric push rod 5; bolt 6; clamping joint 7; through hole 701; clamping groove 702; connecting seat 703; pin shaft 704. DETAILED DESCRIPTION

[0019] like Figures 1 to 5 As shown, the emergency jettisoning device of the underwater robot comprises a base 4, a buoyancy box 2 is fixedly arranged on the base 4, an electric push rod 5 is arranged in the buoyancy box 2, a clamping joint 7 is arranged at the end of the telescopic rod of the electric push rod 5, a clamping counterweight 1 is arranged on the clamping joint 7, and the end of the connecting rod 101 in the counterweight 1 abuts against the clamping joint 7. With this structure, the connecting rod 101 in the counterweight 1 passes through the base 4 and is clamped in the clamping joint 7 at the end of the telescopic rod of the electric push rod 5, so that the buoyancy of the buoyancy box 2 is overcome by the counterweight 1 when the robot dives, and when it needs to float up due to a fault, the counterweight 1 is separated from the clamping joint 7, and the buoyancy of the buoyancy box 2 can float the entire device and the underwater robot to the water surface.

[0020] Preferably, a mounting seat 3 is fixedly arranged on one side of the base 4, and the mounting seat 3 is mounted on the underwater robot by bolts. The circumference of the buoyancy box 2 is fixedly connected to the base 4 by multiple bolts 6, and the electric push rod 5 is mounted on the base 4.

[0021] Preferably, a connection seat 703 is fixedly provided on both sides of the end of the clamping joint 7, and the connection seat 703 is connected to the end of the telescopic rod of the electric push rod 5 through a pin shaft 704. With this structure, the electric push rod 5 drives the telescopic rod to move, thereby driving the clamping joint 7 to move.

[0022] Preferably, the clamping joint 7 is provided with a through hole 701, one side of the through hole 701 is provided with a clamping groove 702 communicating therewith, and both sides of the connecting rod 101 are provided with limiting grooves 102, the end of the connecting rod 101 abuts against the through hole 701, and the limiting groove 102 abuts against the clamping groove 702. With this structure, the clamping joint 7 can clamp the connecting rod 101 on the counterweight 1 under the drive of the electric push rod 5, or make the counterweight 1 detach from the clamping joint 7.

[0023] Preferably, the outer diameter of the connecting rod 101 is smaller than the inner diameter of the through hole 701 and larger than the width of the slot 702;

[0024] The width of the slot 702 matches the width of the limiting slot 102. With this structure, the connecting rod 101 is clamped on the slot 702 through the limiting slot 102, so that the connecting rod 101 is connected to the clamping joint 7. When the connecting rod 101 moves into the through hole 701, the counterweight 1 can be separated from the clamping joint 7, so that the underwater robot floats to the water surface by relying on the buoyancy of the buoyancy box 2.

[0025] Working principle:

[0026] In actual use of the device, when the underwater robot needs to dive underwater for normal operation, the electric push rod 5 is in a retracted state, and the telescopic rod of the electric push rod 5 is used to pull the clamping joint 7 back. At this time, the clamping groove 702 just clamps the position of the limit groove 102, so that the connecting rod 101 on the counterweight block 1 cannot be detached; because the connecting rod 101 passes through the circular hole on the base 4 and is then clamped into the clamping joint 7, and the diameter of the circular hole on the base 4 matches the diameter of the connecting rod 101, the counterweight block 1 and the connecting rod 101 will not shake, and the gravity of the counterweight block 1 can be used to make the entire device dive together with the underwater robot; and when the underwater robot encounters a fault and loses contact with the operator on shore, the underwater robot cannot float up by relying on its own buoyancy device. At this time, the control on the emergency jettisoning device After the system confirms the signal of disconnection of communication, the emergency start-up electric push rod 5 pushes out the telescopic rod, thereby driving the card joint 7 to move forward. Since the bottom of the connecting rod 101 is stuck in the circular hole on the base 4, the connecting rod 101 cannot move forward, which makes the card slot 702 on the card joint 7 disengage from the limit slot 102, and the through hole 701 moves to the outer ring of the connecting rod 101. Since the inner diameter of the through hole 701 is larger than the diameter of the connecting rod 101, the counterweight 1 can fall off the card joint 7. After the emergency load-releasing device loses the gravity of the counterweight 1, the buoyancy of the buoyancy box 2 is greater than the weight of the entire device and the underwater robot, so that the entire device and the underwater robot float to the surface of the water relying on the buoyancy of the buoyancy box 2, which is convenient for the onshore staff to take the robot for inspection and maintenance.

[0027] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An emergency jettisoning device for an underwater robot, characterized in that: The invention comprises a base (4), a buoyancy box (2) is fixedly provided on the base (4), an electric push rod (5) is provided in the buoyancy box (2), a clamping joint (7) is provided at the end of the telescopic rod of the electric push rod (5), a clamping counterweight (1) is provided on the clamping joint (7), and the end of the connecting rod (101) in the counterweight (1) abuts against the inside of the clamping joint (7).

2. The underwater robot emergency jettisoning device according to claim 1 is characterized in that: A mounting seat (3) is fixedly provided on one side of the base (4), and the mounting seat (3) is mounted on the underwater robot by means of bolts.

3. The underwater robot emergency jettisoning device according to claim 1 is characterized in that: The circumferential side of the buoyancy box (2) is fixedly connected to the base (4) via a plurality of bolts (6), and the electric push rod (5) is mounted on the base (4).

4. The underwater robot emergency jettisoning device according to claim 1 is characterized in that: Connecting seats (703) are fixedly provided on both sides of the end of the clamping joint (7), and the connecting seats (703) are connected to the ends of the telescopic rods of the electric push rod (5) via pin shafts (704).

5. The underwater robot emergency jettisoning device according to claim 1 is characterized in that: The clamping joint (7) is provided with a through hole (701), one side of the through hole (701) is provided with a clamping groove (702) communicating therewith, and both sides of the connecting rod (101) are provided with limiting grooves (102), the end of the connecting rod (101) abuts against the through hole (701), and the limiting groove (102) abuts against the clamping groove (702).

6. The underwater robot emergency jettisoning device according to claim 5 is characterized in that: The outer diameter of the connecting rod (101) is smaller than the inner diameter of the through hole (701) and larger than the width of the slot (702); The width of the locking slot (702) matches the width of the limiting slot (102).

Images