Hydraulic opening and closing mechanism and chain stopper

Abstract

The utility model relates to a hydraulic opening and closing mechanism and a chain stopper. The hydraulic opening and closing mechanism is installed on the chain stopper and comprises an oil cylinder, a piston rod, an oil way assembly and a connecting rod, the oil cylinder is fixed to the chain stopper and connected with the oil way assembly, the piston rod is arranged at the top end of the oil cylinder, one end of the connecting rod is connected with a knife switch of the chain stopper, and the other end of the connecting rod is connected with the chain stopper. The other end of the connecting rod is elastically connected with the piston rod, the oil way assembly is used for inputting or discharging hydraulic oil into or out of the oil cylinder, the hydraulic oil input or discharged out of the oil cylinder is used for pushing the piston rod to be pushed out or withdrawn, the piston rod is used for driving the connecting rod to be pushed out and withdrawn synchronously, and the connecting rod is used for driving a switch blade of the chain stopper to ascend and descend. And opening and closing of the knife switch are completed. Compared with the prior art, the hydraulic type opening and closing mechanism is arranged on the chain stopper, so that automatic opening or closing is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of marine chain stop equipment, and in particular to a hydraulic opening and closing mechanism and a chain stopper. Background Technology

[0002] Currently, the various types of chain stoppers commonly used with ship anchor winches, whether spiral, knife-type, cam-type, or roller-type, are mostly operated manually for opening and closing, especially... Figures 1-2 The roller-type chain stopper shown is quite heavy, making manual operation laborious and posing certain safety hazards.

[0003] When the anchor is in place or retrieved, and it is necessary to close the pawl to clamp the anchor chain, a manual lever is used behind the chain stopper to turn the counterweight of the chain stopper pawl to open or close the pawl. Figure 3 ).

[0004] The chain stopper uses a chuck to clamp the anchor chain. It consists of a steel plate and a counterweight steel bar. When closed, the maximum tensile force must withstand the weight of the anchor and part of the anchor chain. Therefore, the chuck must have sufficient strength and stability. The components of the chuck are heavy steel parts, and the entire component typically weighs between 100 and 230 kg. Even with a rotating shaft in the middle, manually operating it using a lever is extremely difficult.

[0005] Because the switch is heavy, if the lever slips or the angle of operation is not appropriate, the switch may suddenly fall, and its counterweight may suddenly rise, posing a safety hazard. Utility Model Content

[0006] The purpose of this invention is to solve the problems of heavy weight and difficult opening and closing of existing chain stopper gates by providing a hydraulic opening and closing mechanism and a chain stopper. Because the chain stopper gate is heavy, this invention achieves automatic opening or closing by incorporating a hydraulic opening and closing mechanism on the chain stopper.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A hydraulic opening and closing mechanism is mounted on a chain stopper. The hydraulic opening and closing mechanism includes a hydraulic cylinder, a piston rod, an oil circuit assembly, and a connecting rod.

[0009] The hydraulic cylinder is fixed to the chain stopper and connected to the hydraulic circuit assembly. A piston rod is provided at the top of the hydraulic cylinder.

[0010] One end of the connecting rod is connected to the blade of the chain stopper, and the other end of the connecting rod is elastically connected to the piston rod.

[0011] The oil path assembly is used for inputting or discharging hydraulic oil into the oil cylinder, the hydraulic oil of the oil cylinder is used for pushing the piston rod to push out or retract, the piston rod is used for driving the connecting rod to synchronously push out and retract, the connecting rod is used for driving the brake vane of the stopper to lift, and the opening and closing of the brake vane are completed.

[0012] In an embodiment of the utility model, the hydraulic opening and closing mechanism further includes a sliding groove arranged on the side plate of the stopper, the sliding groove is fixed to the top end of the oil cylinder, and the connecting rod is slidingly arranged in the sliding groove.

[0013] In an embodiment of the utility model, the connecting rod is elastically connected with the piston rod through an elastic coupling.

[0014] In an embodiment of the utility model, the two oil cylinders are fixedly installed on the side plates on both sides of the stopper.

[0015] In an embodiment of the utility model, the oil path assembly includes an oil inlet pipe and an oil return pipe arranged on the side plate of the stopper, and the two ends of the oil inlet pipe and the oil return pipe are respectively connected with an oil cylinder in communication.

[0016] In an embodiment of the utility model, the oil inlet pipe and the oil return pipe are connected with a hydraulic pump station, the hydraulic pump station supplies oil to the oil cylinder through the oil inlet pipe, and the hydraulic pump station also supplies oil to the hydraulic brake of the anchor winch.

[0017] In an embodiment of the utility model, the upper end of the oil cylinder is connected with the oil inlet pipe in communication, and the lower end of the oil cylinder is connected with the oil return pipe in communication.

[0018] In an embodiment of the utility model, the hydraulic opening and closing mechanism further includes an electric control box, and the electric control box is connected with the hydraulic pump station.

[0019] As a preferred technical scheme, the electric control box for controlling the action of the oil cylinder is introduced to the ship control console, after confirming the operation condition of the anchor machine, the corresponding oil path can be connected, the piston rod of the oil cylinder is extended or retracted, the stopper is opened or closed, and the electric control box can be operated in the cabin far away from the stopper.

[0020] In an embodiment of the utility model, the oil inlet pipe and the oil return pipe are provided with electromagnetic valves, the electromagnetic valves are connected with the electric control box, the oil path of the electromagnetic valves is controlled through the electric control box, the piston rod is extended or retracted, and the opening and closing mechanism on the brake vane is driven to act.

[0021] A stopper, the stopper includes the above-mentioned hydraulic opening and closing mechanism.

[0022] The working principle of the utility model is as follows:

[0023] When the stopper brake needs to be opened or closed, the electric control box is operated to connect the oil circuit through the electromagnetic valve, and the hydraulic oil pushes the piston rod of the oil cylinder to push out or retract, and the connecting rod elastically connected with the piston rod is synchronously pushed out and retracted, thereby driving the stopper brake to lift to complete the opening and closing of the brake.

[0024] During the lifting of the brake, the chain is heavy, and under the action of inertia, it may swing. Since the elastic coupling has a certain deflection, it can swing simultaneously during lifting. At the same time, the strength and rigidity of the sliding groove ensure that it does not deform and does not jam.

[0025] In the closed state of the stopper, the oil cylinder can be pressure- maintained to ensure that the stopper clamps the chain stably and reliably. Even if the ship body swings due to wind and waves, the closure can be ensured to be reliable.

[0026] Although the stopper is equipped with an automatic control hydraulic opening and closing mechanism, the manual opening mechanism and parts are still retained. If the hydraulic opening and closing mechanism is abnormal, it can be manually operated in an emergency.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] 1. The hydraulic opening and closing mechanism provided by the utility model is provided with a self-adaptive lifting structure, which realizes smooth lifting of the brake without deformation or jamming.

[0029] 2. The hydraulic opening and closing mechanism provided by the utility model is arranged on the stopper, and the stopper is automatically controlled to open and close by hydraulic pressure, thereby replacing heavy manual operation. It is convenient, safe and reliable.

[0030] 3. The hydraulic opening and closing mechanism provided by the utility model can remotely control the opening or closing of the stopper without the need for on-site operation of personnel.

[0031] 4. If the hydraulic opening and closing mechanism is abnormal, it can be quickly switched to manual operation mode.

[0032] 5. The utility model is based on the oil cylinder and the sliding groove guide mechanism, the piston rod is elastically connected with the connecting rod, and when reciprocating linearly, it can have a certain range of swinging motion. According to the simulation calculation of the motion track, the motion process is smooth and has no jamming, and the opening and closing positions are accurate.

[0033] 6. The connecting rod and the sliding groove in the utility model are determined in material and structure specification after strength checking, so as to ensure sufficient strength and be able to withstand a certain torque without deformation affecting the action execution. DETAILED DESCRIPTION

[0034] Figure 1 It is a structural diagram of the brake opening state of the roller brake stopper in the prior art;

[0035] Figure 2 Figure 1 is a structural schematic diagram of the working state of a roller brake pawl chain stopper in the prior art;

[0036] Figure 3 Figure 2 is a structural schematic diagram of a pawl chain stopper brake in the prior art;

[0037] Figure 4 Figure 3 is a side view of a hydraulic opening and closing mechanism for a chain stopper in the present application;

[0038] Figure 5 Figure 4 is a structural schematic diagram of a hydraulic opening and closing mechanism for a chain stopper in the present application.

[0039] Brief Description of the Drawings: 1, brake, 2, force lever, 3, anchor chain, 4, brake open state, 5, brake closed state, 6, sliding groove, 7, oil inlet pipe, 8, oil return pipe, 9, oil cylinder, 10, connecting rod, 11, side plate. DETAILED DESCRIPTION

[0040] The present application will be described in detail below with reference to the drawings and specific embodiments. The present embodiment is implemented on the premise of the technical scheme of the present application, and detailed implementation and specific operation process are given, but the protection scope of the present application is not limited to the following embodiments.

[0041] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0042] In the description of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation", "link", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through intermediate medium indirectly connect, can be two element inside intercommunication. For ordinary skilled person in the art, the above-mentioned term can be understood according to the specific meaning in the utility model.

[0044] Some embodiments of the utility model are described in detail below in conjunction with the drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.

[0045] Example 1

[0046] Referring to Figures 4-5 , the utility model provides a hydraulic opening and closing mechanism, the hydraulic opening and closing mechanism is installed on chain stopper, the hydraulic opening and closing mechanism includes oil cylinder 9, piston rod, oil circuit assembly and connecting rod 10,

[0047] The oil cylinder 9 is fixed on the chain stopper, the oil cylinder 9 is connected with the oil circuit assembly, the top end of the oil cylinder 9 is provided with the piston rod,

[0048] One end of the connecting rod 10 is connected with the gate 1 of the chain stopper, the other end of the connecting rod 10 is elastically connected with the piston rod,

[0049] The oil circuit assembly is used to input or discharge hydraulic oil into the oil cylinder 9, the hydraulic oil input or discharged into the oil cylinder 9 is used to push the piston rod to push out or retract, and the piston rod is used to drive the connecting rod 10 to synchronously push out and retract, and the connecting rod 10 is used to drive the gate 1 of the chain stopper to lift, so as to complete the opening and closing of the gate 1.

[0050] In the embodiment, the hydraulic opening and closing mechanism further includes a sliding groove 6 arranged on the side plate 11 of the chain stopper, the sliding groove 6 is fixed to the top end of the oil cylinder 9, and the connecting rod 10 is slidably arranged in the sliding groove 6.

[0051] In the embodiment, the connecting rod 10 is elastically connected with the piston rod through an elastic coupling.

[0052] In the embodiment, two oil cylinders 9 are fixedly installed on the side plates 11 on both sides of the chain stopper.

[0053] In the embodiment, the oil circuit assembly includes an oil inlet pipe 7 and an oil return pipe 8 arranged on the side plate 11 of the chain stopper, and the two ends of the oil inlet pipe 7 and the oil return pipe 8 are respectively connected with one oil cylinder 9.

[0054] In the embodiment, the oil inlet pipe 7 and the oil return pipe 8 are connected with the hydraulic pump station, the hydraulic pump station supplies oil to the oil cylinder through the oil inlet pipe 7, and the hydraulic pump station also supplies oil to the hydraulic brake of the anchor winch.

[0055] In the embodiment, the upper end of the oil cylinder 9 is connected with the oil inlet pipe 7, and the lower end of the oil cylinder 9 is connected with the oil return pipe 8.

[0056] In the embodiment, the hydraulic opening and closing mechanism further comprises an electric control box connected with the hydraulic pump station.

[0057] In the embodiment, the oil inlet pipe 7 and the oil return pipe 8 are provided with electromagnetic valves connected with the electric control box, the oil path of the electromagnetic valves is switched through the electric control box, the piston rod is extended or retracted, and the opening and closing mechanism on the contact 1 is driven to move.

[0058] Embodiment 2

[0059] The embodiment provides a chain stopper comprising the hydraulic opening and closing mechanism of the embodiment 1.

[0060] The above description of the embodiments is for facilitating the ordinary skilled in the art to understand and use the utility model. The person skilled in the art can obviously easily make various modifications to the embodiments, and apply the general principles described herein to other embodiments without creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by the person skilled in the art according to the disclosure of the utility model without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A hydraulic opening and closing mechanism characterized by comprising: The hydraulic opening and closing mechanism is installed on the chain stopper, and comprises a cylinder (9), a piston rod, an oil circuit assembly and a connecting rod (10), The cylinder (9) is fixed on the chain stopper, and the cylinder (9) is connected with the oil circuit assembly, and the top end of the cylinder (9) is provided with the piston rod, One end of the connecting rod (10) is connected with the shutter (1) of the chain stopper, and the other end of the connecting rod (10) is elastically connected with the piston rod, The oil circuit assembly is used for inputting or discharging hydraulic oil into or out of the cylinder (9), the hydraulic oil inputted or discharged into or out of the cylinder (9) is used for pushing the piston rod to push out or retract, the piston rod is used for driving the connecting rod (10) to synchronously push out and retract, and the connecting rod (10) is used for driving the shutter (1) of the chain stopper to lift.

2. The hydraulic opening and closing mechanism according to claim 1, characterized by The hydraulic opening and closing mechanism further comprises a sliding groove (6) arranged on the side plate (11) of the chain stopper, the sliding groove (6) is fixed on the top end of the cylinder (9), and the connecting rod (10) is slidably arranged in the sliding groove (6).

3. The hydraulic opening and closing mechanism according to claim 1, characterized in that, The connecting rod (10) is elastically connected with the piston rod through an elastic coupling.

4. The hydraulic opening and closing mechanism according to claim 1, characterized by Two cylinders (9) are fixedly installed on the side plates (11) on both sides of the chain stopper.

5. A hydraulic opening and closing mechanism according to claim 4, characterized in that The oil circuit assembly comprises an oil inlet pipe (7) and an oil return pipe (8) arranged on the side plate (11) of the chain stopper, and two ends of the oil inlet pipe (7) and the oil return pipe (8) are respectively connected with one cylinder (9).

6. A hydraulic opening and closing mechanism according to claim 5, wherein The oil inlet pipe (7) and the oil return pipe (8) are connected with a hydraulic pump station, the hydraulic pump station supplies oil to the cylinder through the oil inlet pipe (7), and the hydraulic pump station also supplies oil to a hydraulic brake of the anchor winch.

7. The hydraulic opening and closing mechanism according to claim 5, wherein The top end of the cylinder (9) is connected with the oil inlet pipe (7), and the bottom end of the cylinder (9) is connected with the oil return pipe (8).

8. The hydraulic opening and closing mechanism according to claim 6, wherein The hydraulic opening and closing mechanism further comprises an electric control box connected with the hydraulic pump station.

9. A hydraulic opening and closing mechanism according to claim 8, characterized in that The oil inlet pipe (7) and the oil return pipe (8) are provided with electromagnetic valves connected with the electric control box, the oil circuit of the electromagnetic valves is controlled by the electric control box, the piston rod is extended or retracted, and the opening and closing mechanism on the shutter (1) is driven to act.

10. A chain stopper characterized by The chain stopper comprises the hydraulic opening and closing mechanism according to any one of claims 1-9.

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