Swinging stopper locking structure and swinging stopper

Abstract

The utility model discloses a locking structure of an oscillation stopping device and the oscillation stopping device, which belong to the field of oscillation stopping equipment and are used for solving the problem that the locking piece of the existing oscillation stopping device cannot stably and reliably lock an underwater robot, the locking structure of the oscillation stopping device comprises a connecting cylinder and a locking plate, the connecting cylinder is provided with at least two abdicating holes, and the locking plate is arranged on the connecting cylinder. The receding holes are circumferentially formed in the side face of the connecting cylinder at equal intervals and communicate with the interior and the exterior of the connecting cylinder. The lock plate is rotationally connected with the connecting cylinder, and comprises a first limiting part and a second limiting part which are respectively positioned above and below the rotary connecting part; the rotating path of the locking plate comprises a locking position, when the locking plate is located at the locking position, the locking plate is used for locking the connector, the first limiting part abuts against the outer side of the connecting cylinder, the second limiting part abuts against the hole wall of the lower end of the receding hole, and the acting force of the connector on the locking plate is evenly dispersed to the two abutting positions of the locking plate and the connecting cylinder. The stress area of the locking structure of the oscillation stopper is increased, the stress is reduced, and the locking plate and the connecting cylinder are not easy to wear under alternating stress.

Description

Technical Field

[0001] The utility model relates to the field of anti-swing equipment, in particular to an anti-swing device locking structure and an anti-swing device. Background Art

[0002] The anti-sway device is a component that connects an underwater robot (ROV) and a cable, and mainly includes a connecting tube and a locking piece rotatably mounted on the connecting tube. When the underwater robot is retracted and released by the cable, its mushroom-shaped connecting head is inserted into the connecting tube and connected and locked with the locking piece through the bottom. The bottom of the locking piece abuts against the connecting tube of the anti-sway device, and the connecting tube is used as a support to prevent the connecting head from being disengaged from the connecting tube downward. The defects and shortcomings of the above anti-sway device are:

[0003] When the connector is locked, the abutment point between the locking piece and the connecting tube is located at the bottom end of the locking piece, which results in high extrusion stress and easy wear under alternating stress.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] The utility model provides a locking structure of a swing stopper and a swing stopper, which at least solves the technical problem of how to improve the stability and reliability of a locking piece when locking a connector.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] A locking structure for an anti-oscillation device, comprising:

[0010] The connecting tube is provided with at least two clearance holes, which are arranged at equal intervals on the side of the connecting tube in the circumferential direction and communicate with the inside and outside of the connecting tube;

[0011] Locking plates, the number of which is the same as the clearance holes, and each of which is movably disposed in one of the clearance holes, the locking plate comprising a connecting portion rotatably connected to the connecting cylinder, and comprising a first limiting portion and a second limiting portion respectively located above and below the connecting portion;

[0012] Wherein, when the locking plate locks the connector of the target object, the first limiting portion abuts against the outer side of the connecting tube, and the second limiting portion abuts against the hole wall at the lower end of the clearance hole.

[0013] In some embodiments, the locking plate also includes a locking portion located between the first limiting portion and the second limiting portion, and the locking portion is located on a side of the locking plate close to the connecting tube; when the locking portion is located inside the connecting tube, it is used to block the connecting head from moving downward to lock the connecting head; when the locking portion is located outside the connecting tube, the connecting head can be withdrawn from the connecting tube.

[0014] In some embodiments, the locking plate further includes a third limiting portion, which is located at the bottom end of the locking plate and outside the connecting tube; when the locking plate unlocks the connecting head of the target object, the third limiting portion abuts against the outside of the connecting tube.

[0015] In some embodiments, the anti-oscillation locking structure includes a driving cylinder for driving the locking plate to rotate, the driving cylinder includes a cylinder body rotatably connected to the connecting tube and a piston rod located inside the cylinder body, the piston rod divides the inner cavity of the cylinder body into a rodless cavity and a rod cavity, and extends from the rod cavity to the outside of the cylinder body, and is rotatably connected to the locking plate; the rodless cavity and the rod cavity are connected to the same hydraulic oil source through a pipeline, and the hydraulic oil source is used to supply oil to the rodless cavity and the rod cavity at the same time, and the effective pressure area of ​​the piston rod in the rodless cavity is greater than the effective pressure area in the rod cavity; when the connecting head enters the connecting tube and pushes the locking plate, the locking plate pushes the piston rod to move into the rod cavity and causes a negative pressure in the rodless cavity.

[0016] In some embodiments, the piston rod is arranged obliquely, and the rotational connection between the cylinder body and the connecting cylinder is located above the rotational connection between the piston rod and the locking plate and on a side away from the connecting cylinder.

[0017] In some embodiments, the connecting cylinder includes ribs, the ribs are arranged in pairs, and the locking plate and the cylinder body are rotatably connected to the locking plate via pins.

[0018] In some embodiments, the anti-oscillation locking structure includes a nitrogen accumulator, and the nitrogen accumulator serves as the hydraulic oil source and is connected to the rodless chamber and the rod chamber through a pipeline.

[0019] The utility model also provides a oscillator, comprising the above-mentioned oscillator locking structure.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the anti-swing device locking structure and the anti-swing device provided by the utility model have the following beneficial effects:

[0022] When the anti-switch locking structure and the anti-switch lock the connecting head, the first limiting part abuts against the outer side of the connecting tube, and the second limiting part abuts against the hole wall at the lower end of the yield hole. The force of the connecting head on the locking plate is evenly dispersed at the two abutting points between the locking plate and the connecting tube. Compared with the structure of the existing anti-switch locking piece abutting against the connecting tube through the bottom end, the anti-switch locking structure and the anti-switch have a larger force-bearing area and reduced stress dispersion. The locking plate and the connecting tube are not easy to wear under alternating stress, and the cooperation between the locking plate and the connecting tube is more stable and reliable. At the same time, the locking plates arranged on the connecting tube at equal intervals in the circumferential direction can evenly disperse the force of the connecting head in various areas of the connecting tube, so that the anti-switch locking structure is more stable and reliable when locking the connecting head. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 2 is a three-dimensional diagram of the locking structure of the anti-oscillation device in the embodiment.

[0024] Figure 2 FIG. 1 is a top view of the locking structure of the anti-oscillation device in the embodiment.

[0025] Figure 3 The locking structure of the oscillator and the connector are Figure 2 Cross-sectional view of section A.

[0026] Figure numerals: connecting tube 1, locking plate 2, connecting head 3, driving cylinder 4, nitrogen energy storage device 5, clearance hole 10, rib plate 11, first limiting portion 21, second limiting portion 22, third limiting portion 23, locking portion 24, piston rod 42, cylinder body 41, rodless chamber 401, rod chamber 402. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] When the existing anti-sway device locks the connecting head 3 of the underwater robot, the abutment point between the locking piece and the connecting tube is located at the bottom end of the locking piece, which causes uneven force and the abutment is not stable and reliable enough.

[0029] In order to solve the above technical problems, this embodiment provides a locking structure of a sway stopper, please refer to Figures 1 to 3 As shown, Figure 1 is a three-dimensional diagram of the locking structure of the anti-oscillation device in the embodiment, Figure 2 It is a top view of the locking structure of the anti-oscillation device in the embodiment, Figure 3 The locking structure of the oscillator and the connector are Figure 2 Cross-sectional view of section A.

[0030] The anti-oscillation locking structure of this embodiment includes: a connecting tube 1 and a locking plate 2, wherein the locking plate 2 is used to lock a connection 3 of a target object. The target object is described below by taking an underwater robot as an example.

[0031] The connecting tube 1 is provided with at least two clearance holes 10, which are arranged circumferentially and evenly spaced on the side of the connecting tube 1 and communicate with the inside and outside of the connecting tube 1; the number of the locking plates 2 is the same as the clearance holes 10, and each is movably arranged in one of the clearance holes 10, and the locking plate 2 includes a connecting portion rotatably connected to the connecting tube 1, and includes a first limiting portion 21 and a second limiting portion 22 respectively located above and below the connecting portion; wherein the rotation path of the locking plate 2 includes a locking position, see Figure 3 As shown in the figure, the right side locking plate 2 is in the locking position. When in the locking position, that is, when the locking plate 2 locks the connecting head 3, the first limiting portion 21 abuts against the outer side of the connecting tube 1, and the second limiting portion 22 abuts against the hole wall at the lower end of the clearance hole 10.

[0032] Understandably, Figure 2 The positions of the locking plates 2 on the left and right sides are different for the convenience of explaining the rotational positions of the locking plates 2. In actual operation, the locking plates 2 act synchronously and are located at the same rotational position at the same time.

[0033] When the locking structure of the above technical solution locks the connecting head 3, the locking plate 2 rotates to the locking position, the first limiting portion 21 abuts against the outer side of the connecting tube 1, and the second limiting portion 22 abuts against the hole wall at the lower end of the giving hole 10, and the force of the connecting head 3 on the locking plate 2 is evenly dispersed at the two abutting points between the locking plate 2 and the connecting tube 1. Compared with the structure of the existing locking piece of the locking device abutting against the connecting tube 1 through the bottom end, the contact area between the locking plate 3 and the connecting tube 2 of the locking structure of the locking device is increased, the pressure under the same load becomes smaller, the extrusion strength requirement of the material will become lower, it is not easy to wear under alternating stress, and the cooperation between the locking plate 2 and the connecting tube 1 is more stable and reliable; at the same time, the locking plate 2 arranged on the connecting tube 1 at equal intervals in the circumferential direction can evenly disperse the force of the connecting head 3 in various areas of the connecting tube 1, so that the locking structure of the locking device is more stable and reliable when locking the connecting head 3.

[0034] In one embodiment of the locking plate 2 locking the connector 3, see Figure 3 As shown, the lock plate 2 includes a locking portion 24 located between the first limiting portion 21 and the second limiting portion 22, the locking portion 24 is located on the side of the lock plate 2 close to the connecting tube 1, and the locking portion 24 and the first limiting portion 21 and the second limiting portion 22 are an integral structure, such as an integrally formed structure; when in the locked position, the lock plate 2 locks the connecting head 3, the locking portion 24 is located inside the connecting tube 1, and is used to block the connecting head 3 from moving downward to lock the connecting head 3; the rotation path of the lock plate 2 includes an open position, Figure 3 The middle left locking plate 2 is in the open position. When the locking portion 24 is in the open position, that is, when the locking plate 2 unlocks the connecting head 3, it is located outside the connecting tube 1, that is, it is separated from the inner hole of the connecting tube 1, so that the connecting head 3 can be withdrawn from the inner hole of the connecting tube 1.

[0035] For example, see Figure 3 As shown, in order to improve the stability of the lock plate 2 in the open position, the lock plate 2 includes a third limiting portion 23, which is integrally formed at the bottom end of the lock plate 2 and is located on the outside of the connecting tube 1; when in the open position, that is, when the lock plate 2 unlocks the connecting head 3, the third limiting portion 23 abuts against the outside of the connecting tube 1, which helps to prevent the lock plate 2 from continuing to rotate outward, thereby ensuring the overall stability of the anti-swing locking structure.

[0036] For example, see Figure 3 As shown, the first limiting portion 21 and the locking portion 24 , and the second limiting portion 22 and the third limiting portion 23 are connected by a rib plate, thereby improving the structural strength of the locking plate 2 . It can be understood that there is no interference between the rotation path of the rib plate and the clearance hole 10 .

[0037] For example, see Figure 3 As shown, in order to drive the lock plate 2 to rotate from the locked position to the open position when the underwater robot needs to be separated from the stabilizer, the stabilizer locking structure includes a driving cylinder 4 for driving the lock plate 2 to rotate, and the driving cylinder 4 includes a cylinder body 41 and a piston rod 42. The cylinder body 41 is rotatably connected to the connecting tube 1, and the piston rod 42 is located inside the cylinder body 41. The piston rod 42 divides the inner cavity of the cylinder body 41 into a rodless cavity 401 and a rod cavity 402, and extends from the rod cavity 402 to the outside of the cylinder body 41, and then is rotatably connected to the lock plate 2; the rodless cavity 401 and the rod cavity 402 are connected to the same hydraulic oil source through a pipeline, and the hydraulic oil source is used to supply oil to the rodless cavity 401 and the rod cavity 402 at the same time. The effective pressure area of ​​the piston rod 42 in the rodless cavity 401 is larger than that in the rod cavity 402. Effective pressure area; with such arrangement, the inlet and outlet oil passages of the driving cylinder 4 are interconnected, and a differential pipe connection method is adopted to supply oil to the rodless chamber 401 and the rod chamber 402 at the same time. Since the effective pressure area of ​​the rodless chamber 401 is larger than the effective pressure area of ​​the rodless chamber 401, during the oil supply process, the piston rod 42 can automatically move into the rod chamber 402, thereby rotating the lock plate 2 to the open position. In this process, the hydraulic oil in the rod chamber 402 is discharged and merged with the hydraulic oil of the hydraulic oil source, and flow together to the rodless chamber 401, that is, the hydraulic oil flowing to the rodless chamber 401, in addition to coming from the hydraulic oil source, also comes from the rod chamber 402, so the extension speed of the piston rod 42 is accelerated, which speeds up the opening speed of the lock plate 2, thereby improving the unlocking efficiency of the anti-oscillation locking structure.

[0038] Furthermore, the rotation path of the locking plate 2 includes an open position. In the initial state, the locking plate 2 is in the locked position. When the connecting head 3 enters the connecting tube 1 and pushes the locking plate 2 to the open position, the locking plate 2 pushes the piston rod 42 to move into the rod chamber 402 and causes the rodless chamber 401 to form a negative pressure. After the connecting head 3 is in place in the connecting tube 1, the negative pressure formed in the rodless chamber 401 helps to quickly reset the locking plate 2 to the locked position, and can reset the locking plate 2 without the supply of hydraulic oil, thereby reducing the energy consumption of the driving cylinder 4.

[0039] For example, see Figure 3 As shown, the piston rod 42 is arranged at an angle, and the rotational connection between the cylinder body 41 and the connecting tube 1 is located above the rotational connection between the piston rod 42 and the locking plate 2 and on the side away from the connecting tube 1, so that when the piston rod 42 moves toward the rod chamber 402, it pushes the locking plate 2 downward to rotate the locking plate 2 to the open position, and when the piston rod 42 moves toward the rodless chamber 401, it pulls the locking plate 2 upward to rotate the locking plate 2 to the locked position.

[0040] For example, see Figure 1 and Figure 3 As shown, the connecting cylinder 1 includes ribs 11, which are arranged in pairs and fixed on the outside of the connecting cylinder 1. The lock plate 2 and the cylinder body 41 are rotatably connected to the lock plate 2 through a pin shaft. The ribs 11 are arranged in groups of two, and the pin shaft is installed between the ribs 11. The lock plate 2 and the driving cylinder 4 are located between the lock plates 2. In order to facilitate the position and connection relationship between the ribs 11 and the lock plate, that is, the cylinder body 41, Figure 1 The rib 11 at the front end of the middle right side has been hidden.

[0041] For example, see Figure 3 As shown, the anti-sway locking structure includes a nitrogen accumulator 5, which is connected to the rodless chamber 401 and the rod chamber 402 through a pipeline as a hydraulic oil source. The nitrogen accumulator 5 plays the role of storing energy in the system. When the system pressure increases, the excess energy can be stored in the nitrogen accumulator 5. At this time, the nitrogen is further compressed and stores the corresponding pressure energy. When the system pressure decreases or energy needs to be supplemented, the nitrogen accumulator 5 can release the stored pressure energy and release the nitrogen into the hydraulic system by controlling valves and other mechanisms to maintain or increase the pressure of the system; the oil cylinder acts as an actuator to convert hydraulic energy into mechanical energy. When the nitrogen accumulator 5 releases energy, the hydraulic oil enters the oil cylinder, pushing the piston rod 42 to move linearly toward the rod chamber 402, and the movement of the piston rod 42 is converted into the required rotation of the lock plate 2. In this way, the energy released by the nitrogen accumulator 5 is effectively transferred to the drive cylinder 4 to drive the lock plate 2 to rotate. It should be noted that the nitrogen accumulator 5 is used on the basis of the above-mentioned driving cylinder 4. Since the driving cylinder 4 only needs to operate when the lock plate 2 is opened, the nitrogen consumption of the nitrogen accumulator 5 is small, which can effectively extend the nitrogen charging cycle.

[0042] For example, see Figure 3 As shown, the number of the clearance holes 10 and the number of the locking plates 2 are two respectively, and the clearance holes 10 and the locking plates 2 are arranged relative to each other with an included angle of 180 degrees.

[0043] Exemplarily, the number of the clearance holes 10 and the locking plates 2 is three, and the angle between adjacent clearance holes 10 and locking plates 2 is 120 degrees.

[0044] For example, see Figure 3 As shown, the first limiting portion 21, the second limiting portion 22, and the third limiting portion 23 contact and abut against the connecting tube 1 through a plane, and the locking portion 24 contact and abut against the connecting head 3 through a plane.

[0045] This embodiment provides a stabilizer, including the stabilizer locking structure of the above embodiment. The position and connection relationship between the stabilizer locking structure and other components of the stabilizer, such as the position and connection relationship between the connecting tube 1 and other components of the stabilizer, can refer to the existing stabilizer and will not be repeated here. Through the application of the above stabilizer locking structure, the stabilizer is more evenly stressed, and the locking of the connector 3 by the stabilizer locking structure is more stable and reliable.

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locking structure of a swing stopper, characterized in that: include: The connecting tube is provided with at least two clearance holes, which are arranged at equal intervals on the side of the connecting tube in the circumferential direction and communicate with the inside and outside of the connecting tube; Locking plates, the number of which is the same as the clearance holes, and each of which is movably disposed in one of the clearance holes, the locking plate comprising a connecting portion rotatably connected to the connecting cylinder, and comprising a first limiting portion and a second limiting portion respectively located above and below the connecting portion; Wherein, when the locking plate locks the connector of the target object, the first limiting portion abuts against the outer side of the connecting tube, and the second limiting portion abuts against the hole wall at the lower end of the clearance hole.

2. The anti-swing locking structure according to claim 1, characterized in that: The locking plate further comprises a locking portion located between the first limiting portion and the second limiting portion, and the locking portion is located on a side of the locking plate close to the connecting cylinder; when the locking portion is located inside the connecting cylinder, it is used to block the connecting head from moving downward, so as to lock the connecting head; When the locking portion is located outside the connecting tube, the connecting head can be withdrawn from the connecting tube.

3. The anti-swing locking structure according to claim 1, characterized in that: The locking plate further comprises a third limiting portion, which is located at the bottom end of the locking plate and outside the connecting tube; when the locking plate unlocks the connecting head of the target object, the third limiting portion abuts against the outside of the connecting tube.

4. The anti-swing locking structure according to claim 1, characterized in that: The anti-oscillation locking structure includes a driving oil cylinder for driving the locking plate to rotate, the driving oil cylinder includes a cylinder body rotatably connected to the connecting tube and a piston rod located inside the cylinder body, the piston rod divides the inner cavity of the cylinder body into a rodless cavity and a rod cavity, and extends from the rod cavity to the outside of the cylinder body and is rotatably connected to the locking plate; The rodless chamber and the rod chamber are connected to the same hydraulic oil source through a pipeline, and the hydraulic oil source is used to supply oil to the rodless chamber and the rod chamber at the same time, and the effective pressure area of ​​the piston rod in the rodless chamber is greater than the effective pressure area in the rod chamber; When the connector enters the connector cylinder and pushes the locking plate, the locking plate pushes the piston rod to move into the rod cavity and forms a negative pressure in the rodless cavity.

5. The anti-swing locking structure according to claim 4, characterized in that: The piston rod is arranged obliquely, and the rotation connection between the cylinder body and the connecting cylinder is located above the rotation connection between the piston rod and the locking plate and on a side away from the connecting cylinder.

6. The anti-swing locking structure according to claim 4, characterized in that: The connecting cylinder comprises ribs, which are arranged in pairs. The locking plate and the cylinder body are rotatably connected to the locking plate through pins respectively.

7. The anti-swing locking structure according to claim 4, characterized in that: The anti-oscillation locking structure includes a nitrogen accumulator, and the nitrogen accumulator serves as the hydraulic oil source and is connected to the rodless chamber and the rod chamber through a pipeline.

8. A sway stopper, characterized in that: It comprises the anti-oscillation locking structure as described in any one of claims 1-7.

Images