Simple homing and locking device with signal feedback for loading arm

Abstract

The utility model discloses a simple loading arm homing and locking device with signal feedback, which comprises a loading arm homing seat, a travel switch and a locking device, a loading arm homing groove is arranged on the loading arm homing seat, the travel switch and the locking device are arranged on the loading arm homing seat, the locking device comprises a locking fixing seat, a locking rod and a rubber head screw, and the locking rod is arranged on the locking fixing seat. The locking fixing seat is fixed on the loading arm homing seat, one end of the locking rod is rotatably connected with the locking fixing seat, the rubber head screw is fixed on the locking rod, when the loading arm homes, the loading arm is pressed, opening and closing signals of the travel switch are accessed to the PLC, the PLC judges whether the loading arm homes or not according to the opening and closing signals, and a good protection effect can be achieved. The locking device is simple in structure, has two functions of homing and locking, can meet homing and locking requirements of different crane pipes, and can effectively avoid operation errors such as non-homing of the crane pipes and breaking of the crane pipes caused by human factors.

Description

Technical Field

[0001] The utility model relates to the field of petrochemical industry, and particularly relates to a simple in - line swivel with signal feedback for returning and locking device. Background Art

[0002] The in - line swivel is mainly used for the loading and unloading of petroleum and chemical products, and the media in the pipe are liquid and gas. When loading and unloading the vehicle, it is necessary to take the in - line swivel out of the in - line swivel return seat to connect the in - line swivel with the tank truck; when the loading and unloading is completed, it is necessary to separate the in - line swivel from the tank truck and put it back to the in - line swivel return seat.

[0003] During the loading and unloading process of the in - line swivel, it needs to be independently operated by the transporting personnel, and it cannot be confirmed whether the transporting personnel can operate according to the operation process. At other times, it cannot be confirmed whether the in - line swivel is at the return seat, and there is a possibility of misoperation by personnel, and the safety cannot be guaranteed.

[0004] The existing in - line swivel return and locking device has no signal feedback, its structure is relatively complex, and the production cost is relatively high. Summary of the Utility Model

[0005] In order to solve the above problems, the utility model provides a simple in - line swivel with signal feedback for returning and locking device, which has two functions of returning and locking, can meet the requirements of returning and locking different in - line swivels, and can effectively avoid operation mistakes such as the in - line swivel not returning to its position and pulling off the in - line swivel caused by human factors.

[0006] The technical solution to achieve the purpose of the utility model is: a simple in - line swivel with signal feedback for returning and locking device, including an in - line swivel return seat, a travel switch and a locking device. The in - line swivel return seat is provided with an in - line swivel return groove, the travel switch and the locking device are installed on the in - line swivel return seat. The locking device includes a locking fixed seat, a locking rod and a rubber - headed screw. The locking fixed seat is fixed on the in - line swivel return seat, one end of the locking rod is rotatably connected to the locking fixed seat, the rubber - headed screw is fixed on the locking rod, and when the in - line swivel returns to its position, it presses the in - line swivel.

[0007] Preferably, it further includes a limiting mechanism. A stop block is installed on the locking rod. When the in - line swivel returns to its position, the stop block is resisted by the limiting mechanism, and the locking rod cannot move.

[0008] Preferably, the limiting mechanism includes a compression spring, a locking pin and two pin fixing blocks. The two pin fixing blocks are fixed at the end of the in - line swivel return seat, and are provided with pin holes adapted to the locking pin. The locking pin passes through the two pin fixing blocks. A boss is provided at the top of the locking pin, and the boss is used to resist the stop block. The compression spring is located between the two pin fixing blocks and is sleeved on the locking pin.

[0009] Preferably, a pin seat is provided at the bottom of the locking pin.

[0010] Preferably, the boss is an inclined - plane wedge - shaped protrusion.

[0011] Preferably, a mounting seat is fixed on the locking rod. Mounting holes are provided on both sides of the mounting seat. A screw rod passes through the mounting holes, and a rubber head screw is fixed at the bottom of the screw rod.

[0012] Preferably, the screw rod is fixed on the mounting seat by screws.

[0013] Preferably, the loading arm return seat is installed on the skid-mounted equipment by bolts.

[0014] Preferably, the locking rod is rotationally installed on the locking fixed seat through a pin shaft.

[0015] Compared with the prior art, the utility model can judge whether the loading arm is in place through a travel switch, and is fixed when the loading arm is in place through a locking device and a limiting mechanism, so the safety is improved; the position of the rubber head screw of the utility model is adjustable, which can adapt to loading arms of different sizes; the utility model has a simple structure, small equipment occupation space, and is convenient to install. At the same time, it has two functions of returning and locking, can meet the requirements of returning and locking of different loading arms, and can effectively avoid operation mistakes such as the loading arm not returning in place and pulling off the loading arm caused by human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the utility model DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further details the utility model with reference to the attached Figure 1 , and further describes the utility model in detail. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0018] A simple loading arm return and locking device with signal feedback has a structure as Figure 1 shown. The structure is composed of a loading arm return seat 1, a locking fixed seat 2, a locking device, etc.; the loading arm return seat 1 is installed on the skid-mounted equipment by bolts. The loading arm return seat 1 is designed with a loading arm return groove, and a locking mechanism and a travel switch 8 are installed on the loading arm return seat 1; the locking device is rotationally installed on the upper part of the loading arm return seat 1, and the travel switch 8 is installed on the side of the loading arm return seat. When the loading arm returns to its place, the locking device fixes the loading arm to prevent the loading arm from moving; the return action of the loading arm controls the opening and closing of the travel switch 8.

[0019] The locking device includes a locking fixed seat 2, a locking rod 3, a rubber head screw 4, a compression spring 5, a locking pin 6, two pin fixing blocks 7, etc.; the locking rod 3 is installed on the locking fixed seat 2, and the rubber head screw 4 is installed on the locking rod 3. The rubber head screw 4 is used to press the loading arm. The pin fixing blocks 7 are welded to the end of the loading arm return seat 1 and are provided with pin holes adapted to the locking pin 6. The locking pin 6 is installed on the pin fixing blocks 7 through the pin holes. The compression spring 5 is sleeved on the locking pin 6, and the compression spring 5 is enclosed within the area of the pin fixing blocks 7 by the boss at the top of the locking pin 6. When the locking device is locked, the block on the locking rod 3 is resisted by the boss at the top of the locking pin 6, so that the locking rod 3 cannot move. The return action of the loading arm controls the opening and closing of the travel switch 8. When the loading arm returns, the travel switch 8 is closed. When the loading arm leaves the loading arm return seat 1, the travel switch 8 is disconnected. The opening and closing signals of the travel switch 8 are connected to the PLC, and the PLC judges whether the loading arm is in the returned position through the opening and closing of the signals.

[0020] A pin seat is provided at the bottom of the locking pin 6, and the boss at the top of the locking pin 6 is an inclined wedge-shaped boss.

[0021] An installation seat is fixed on the locking rod 3. Installation holes are provided on both sides of the installation seat, and a screw rod passes through the installation holes. The rubber head screw 4 is fixed at the bottom of the screw rod. Through the adjustment of the position of the screw rod, the stroke of the rubber head screw 4 is adjustable, and it can adapt to loading arms of different sizes.

[0022] For a simple loading arm return locking device with signal feedback, when starting loading and unloading, the loading arm is fastened in the return groove of the loading arm return seat 1 by the locking device, and the travel switch 8 is in the closed state. The PLC judges that the loading arm is in the returned position, and at this time the loading process is in a prohibited state; when the locking device is loosened and the loading arm is disengaged from the return groove of the loading arm return seat 1, the travel switch 8 is in the open state. The PLC judges that the loading arm is in the non-returned position, and at this time the loading process is in a working state, and the operator operates according to the prompts according to the process.

[0023] When the loading and unloading are completed and the loading arm returns, the loading arm returns to the return groove of the loading arm return seat 1, and the locking device is used to fasten the loading arm. At the same time, the travel switch 8 is in the closed state, and the PLC judges that the loading arm has returned, and the loading and unloading are completed.

[0024] Using the device of this embodiment can ensure the safety of loading and unloading and ensure the safety and reliability of enterprise production.

[0025] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A simple signal-feedback type home-position locking device for a loading arm, comprising a loading arm home-position seat, a travel switch and a locking device. A loading arm home-position groove is provided on the loading arm home-position seat, and the travel switch and the locking device are installed on the loading arm home-position seat. It is characterized in that: The locking device includes a locking fixing seat, a locking rod, and a rubber-headed screw. The locking fixing seat is fixed on the crane pipe return seat. One end of the locking rod is rotatably connected to the locking fixing seat. The rubber-headed screw is fixed on the locking rod. When the crane pipe returns to its position, the crane pipe is pressed.

2. The simple in-place locking device with signal feedback for a loading arm according to claim 1, characterized in that It also includes a limiting mechanism, and a stopper is installed on the locking rod. When the crane pipe returns to its position, the stopper is blocked by the limiting mechanism and the locking rod cannot move.

3. The simple in-place locking device with signal feedback for a loading arm according to claim 2, characterized in that, The limiting mechanism includes a compression spring, a locking pin and two pin fixing blocks. The two pin fixing blocks are fixed at the ends of the crane pipe return seat and are provided with pin holes adapted to the locking pin. The locking pin passes through the two pin fixing blocks. A boss is provided at the top of the locking pin, which is used to resist the block. The compression spring is located between the two pin fixing blocks and is sleeved on the locking pin.

4. The simple return locking device with signal feedback of the loading arm according to claim 3, characterized in that, A latch seat is provided at the bottom of the locking latch.

5. The simple in-place locking device with signal feedback for a loading arm according to claim 3, characterized in that, The boss is an inclined wedge-shaped protrusion.

6. The simple in-place locking device with signal feedback for a loading arm according to claim 1, characterized in that A mounting seat is fixed on the locking rod, mounting holes are arranged on both sides of the mounting seat, screw rods are passed through the mounting holes, and a rubber head screw is fixed at the bottom of the screw rod.

7. The simple in-place locking device with signal feedback for a loading arm according to claim 6, characterized in that, The screw rod is fixed on the mounting seat by screws.

8. The simple in-place locking device with signal feedback for a loading arm according to claim 1, characterized in that The crane pipe return seat is installed on the skid-mounted equipment by bolts.

9. The simple in-place locking device with signal feedback for a loading arm according to claim 1, characterized in that The locking rod is rotatably mounted on the locking fixing seat via a pin shaft.

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