Intelligent filling station winch

Abstract

The utility model provides an intelligent filling station winch, which relates to the technical field of maritime work ships, and comprises a base and a hanging frame, the two sides of the base are respectively provided with a hub frame with a horizontal axis, and the two hub frames are coaxially positioned and rotatably mounted on the hanging frame; the sides, close to each other, of the two hub frames are connected with electric motors with the axes vertically arranged through speed reducing mechanisms respectively, hoses are wound around the hub frames, inlet connectors are installed at inlets of the hoses, and filling connectors are installed at outlets of the hoses. The inlet connector is connected with a monitoring sensor and an automatic control valve, and the filling connector is connected with a flow sensor. An operation platform is installed on the hanging frame, the operation platform is in communication connection with a PLC control center, the PLC control center is in communication connection with an upper computer, the monitoring sensor and the flow sensor are in communication feedback connection with the PLC control center, and the electric motor and the automatic control valve are in communication control connection with the PLC control center. According to the utility model, automatic control of winch filling can be realized, and the reliability and the safety of equipment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sea work ships, especially to an intelligent filling station winch. BACKGROUND

[0002] The filling station winch is mainly applied to the ships such as floating production storage and offloading devices that need to transport fluid externally, and the traditional filling winch has problems such as difficult operation, low efficiency, high dependence on the experience of operators during work, and the like, and the information such as filling amount and filling time often needs to be manually operated and recorded. SUMMARY

[0003] The utility model aims at providing an intelligent filling station winch, which can realize automatic control and remote monitoring of the winch filling, realize timed, quantitative and constant-speed filling, can stop filling in time when a fault occurs, improve the reliability and safety of the equipment, reduce the dependence on manual experience, improve the working efficiency of the equipment, and reduce the labor cost.

[0004] The above technical purpose of the utility model is achieved by the following technical scheme:

[0005] An intelligent filling station winch comprises a base and a hanging frame installed on the base, the base is provided with hub racks whose axes are horizontally perpendicular to the length direction of the base on both sides, the two hub racks are coaxially arranged and are positioned and rotationally installed on the hanging frame about their axes, an electric motor whose axis is vertically arranged is connected to each side of the two hub racks close to each other through a speed reduction mechanism, and the two electric motors are located on both sides of the axis of the hub rack, a soft pipe is wound on each hub rack, an inlet joint is installed at the inlet of each soft pipe, and a filling joint is installed at the outlet of each soft pipe, a monitoring sensor for simultaneously monitoring pressure and flow rate and an automatic control valve for controlling the opening and closing of the inlet joint are connected to the inlet joint, the automatic control valve is located between the monitoring sensor and the inlet joint, and a flow sensor is connected to the filling joint.

[0006] An operation platform is further installed on the hanging frame, the operation platform is communicatively connected to a PLC control center, the PLC control center is communicatively connected to an upper computer, and the upper computer is connected to a database, the monitoring sensor and the flow sensor are communicatively and feedback connected to the PLC control center, and the electric motor and the automatic control valve are communicatively and control connected to the PLC control center.

[0007] By adopting the technical scheme, the hose is wound on the hub frame, the rotation of the hub frame is driven by the electric motor and the corresponding speed reduction mechanism to realize the unwinding or winding of the hose, the inlet joint is connected with the fluid supply source, and the filling joint is connected with the filling equipment. The electric motor and the automatic control valve are controlled by the PLC control center to start filling, the monitoring sensor monitors the pressure and flow of the fluid entering, the flow sensor monitors the flow of the fluid output, and the collected information is fed back to the PLC control center and analyzed and stored in the upper computer, and the relevant information is displayed on the operation platform. According to the pressure and flow information in the filling process, the electric motor and the automatic control valve are controlled to stop filling. The filling flow or pressure threshold value can also be set in the PLC control center, and when the data collected by the monitoring sensor and the flow sensor reaches the threshold value, the automatic control valve is automatically closed to stop filling. The database in the upper computer can store historical records, maintenance information, energy consumption information and other data, so that the information can be analyzed and processed, and optimization suggestions can be given. The utility model realizes the automatic control and remote monitoring of the winch filling by integrating the PLC control center, the upper computer, the electric motor, the automatic control valve, the monitoring sensor and the flow sensor, realizes the timed, quantitative and constant-speed filling, and can stop filling in time when a fault occurs, improves the reliability and safety of the equipment, reduces the dependence on manual experience, improves the working efficiency of the equipment and reduces the labor cost.

[0008] Further, an expansion joint is installed at the inlet joint, and the expansion joint is located at the end of the automatic control valve away from the monitoring sensor.

[0009] By adopting the above technical scheme, the expansion joint installed at the inlet joint can compensate for the relative movement at the inlet joint caused by temperature difference, inertial force or foundation heave, etc., to ensure the sealing of the connection at the inlet joint.

[0010] Further, the filling joint is connected with a connecting joint, the connecting joint is provided with a self-closing valve and a connecting control valve, the self-closing valve is located between the connecting control valve and the filling joint, one end of the connecting joint away from the filling joint is symmetrically provided with connecting arms connected with the filling equipment, the connecting control valve is in communication control connection with the PLC control center, and a linkage assembly is arranged between the connecting arms and the self-closing valve.

[0011] By adopting the above technical scheme, the filling joint is connected with the filling equipment through the connecting arms on the connecting joint, when it is necessary to stop filling, the PLC control center controls the connecting control valve to automatically close, if the automatic control of the connecting control valve fails, the on-site worker can manually close the self-closing valve to stop filling, or disconnect the connecting arms from the filling equipment while closing the self-closing valve through the linkage assembly to quickly disconnect the filling equipment and stop filling.

[0012] Further, the linkage assembly comprises connecting rods hinged to the connecting arm near one end of the connecting joint, two of the connecting rods are provided with a tension rod extending away from the connecting arm along the axial direction of the connecting joint between the ends close to each other, the ends of the two connecting rods close to the tension rod are hinged to the tension rod, the hinging axes of the two ends of the connecting rod are both arranged horizontally and parallel to each other perpendicular to the length direction of the connecting rod; the lower end of the tension rod is vertically slidably arranged on the connecting joint, and a spring is arranged along the length direction of the tension rod between the lower end of the tension rod and the connecting joint; the connecting arm is hingedly arranged on the connecting joint, and the hinging axis of the connecting arm is parallel to the hinging axis of the connecting rod; the connecting joint is further provided with a linkage rod parallel to the axis of the connecting joint, the linkage rod is slidably arranged on the connecting joint along the length direction of the linkage rod, and the end of the linkage rod close to the self-closing valve is correspondingly matched with the opening and closing switch of the self-closing valve; the connecting rod is provided with a guide groove arranged along the length direction of the connecting rod, and the end of the linkage rod close to the connecting rod is slidably arranged in the guide groove.

[0013] By adopting the above technical scheme, if the connection of the connecting arm at the end is unstable due to external forces such as ship body sway or lifting, and intelligent control fails to disconnect in time, the connecting joint is subjected to tension along the axial direction, the tension rod is driven to move along the axial direction by the spring, and the tension rod, the connecting rod and the connecting arm are driven to rotate the connecting arm to unlock and separate from the equipment to be filled under the action of the connecting rod mechanism, and at the same time, the driving linkage rod is vertically slidably arranged under the cooperation of the guide groove and the linkage rod during the rotation of the connecting rod, so as to close the self-closing valve. The linkage assembly has simple structure and can automatically disconnect the connecting joint from the equipment to be filled and close the connecting joint in emergency, thereby improving the safety of filling.

[0014] Further, the connecting joint is further provided with a tension sensor between the self-closing valve and the connecting control valve, and the tension sensor is in communication feedback connection with the PLC control center.

[0015] By adopting the above technical scheme, the tension sensor detects the tension received by the connecting joint in real time and feeds back to the PLC control center, when the feedback data of the tension sensor exceeds the set threshold value, the PLC control center feeds back to control the connecting control valve to close the connecting joint, so as to disconnect the connecting joint from the equipment to be filled, thereby ensuring the safety of filling.

[0016] Further, the filling joint is further provided with a tension displacement sensor between the flow sensor and the filling joint, and the tension displacement sensor is in communication feedback connection with the PLC control center.

[0017] By adopting the above technical solution, the wire-pulling displacement sensor can detect the displacement range caused by the tensile force at the filling joint in real time and feedback it to the PLC control center. When the displacement range exceeds the threshold value, the PLC control center feeds back to control the winch to stop filling, avoiding the disconnection of the filling joint and the filled equipment during the filling process, and further improving the safety of filling.

[0018] Furthermore, vertical guardrails in a "U" shape are provided around the base. The two hub frames are located inside the guardrails, and the openings of the guardrails corresponding to the hub frames are opposite to the openings at one end of the corresponding base; an emergency stop switch is installed on the guardrail on one side of the axis of the hub frame, and the emergency stop switch is electrically connected to the electric motor.

[0019] By adopting the above technical solution, the guardrail improves the safety of the entire winch filling. The openings of the guardrail corresponding to the base facilitate the operator to enter for corresponding operations, and the openings of the guardrail corresponding to the hub frames facilitate the maintenance, disassembly and assembly of the hub frames. The openings of the guardrail corresponding to the base are opposite to the openings of the corresponding base, preventing the operator from accidentally entering the hub frame area when entering the base and causing safety accidents. The emergency stop switch installed on the guardrail can control the electric motor to stop suddenly in case of emergencies, and its installation position is close to the entrance of the base, facilitating timely response.

[0020] Furthermore, a receiving groove is provided on the base below the inlet joint, and the receiving groove is connected to an oil discharge valve located at one end of the base and arranged on the end wall of the base.

[0021] By adopting the above technical solution, during the connection before filling or disconnection after filling, fluid may leak at the inlet joint. The leaked fluid is collected in the receiving groove and finally discharged through the oil discharge valve, ensuring a clean filling environment for the winch.

[0022] In summary, the present utility model has the following beneficial effects:

[0023] 1. In the present utility model, by integrating components such as a PLC control center, a host computer, a database, an operation platform, an electric motor, a detection sensor, an automatic control valve, a flow sensor, a connection control valve, a tensile force sensor, and a wire-pulling displacement sensor, the automatic control of winch filling is realized, and timed, quantitative, and constant-speed filling can be achieved. It can also stop filling in time when a fault occurs, improving the reliability and safety of the equipment, reducing the dependence on manual experience, improving the working efficiency of the equipment, and reducing labor costs;

[0024] 2. In the present utility model, the threshold values of each sensor can be set in the PLC control center. When the feedback data reaches the threshold value, the filling is automatically controlled to stop, ensuring the safety of the filling process;

[0025] 3, The utility model discloses a special structure's connecting joint is set up, can when the end of connecting arm is not connected stably and intelligent control fails to disconnect in time when the external force such as ship body swing or lift, the connection with being filled equipment is automatically disconnected and the connecting joint is closed simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a kind of intelligent filling station winch one perspective's overall structure schematic diagram;

[0027] Figure 2 It is a kind of intelligent filling station winch another perspective's overall structure schematic diagram;

[0028] Figure 3 It is Figure 1 The enlarged view of part A in

[0029] Figure 4 It is Figure 2 The enlarged view of part B in

[0030] Figure 5 It is the intelligent control logic diagram of a kind of intelligent filling station winch;

[0031] Figure 6 It is the structure schematic diagram of connecting joint in a kind of intelligent filling station winch.

[0032] In the drawing, 1, base; 2, hanging frame; 3, wheel hub frame; 4, electric motor; 5, hose; 6, inlet joint; 7, monitoring sensor; 8, automatic control valve; 9, expansion joint; 10, filling joint; 11, flow sensor; 12, guy displacement sensor; 13, connecting joint; 14, self-closing valve; 15, connection control valve; 16, connecting arm; 17, connecting rod; 18, guide slot; 19, tension rod; 20, spring; 21, linkage rod; 22, tension sensor; 23, guardrail; 24, emergency stop switch; 25, receiving groove; 26, oil unloading valve; 27, operation platform; 28, PLC control center; 29, host computer; 30, database. DETAILED DESCRIPTION

[0033] The utility model will be further explained in detail in the following combining with the drawings and embodiment. It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0034] An intelligent filling station winch, such as Figure 1 and Figure 2As shown, including the base 1 and installed on the base 1 hanging frame 2, both sides of the base 1 is provided with the wheel hub frame 3 axis horizontal perpendicular to the length direction of the base 1, two wheel hub frame 3 coaxial arrangement and are positioned around the axis of rotation installed on the hanging frame 2. Two wheel hub frame 3 side to each other are connected through the speed reduction mechanism axis vertical setting of the electric motor 4, through the electric motor 4 and the corresponding speed reduction mechanism drive wheel hub frame 3 rotation to realize the hose 5 or winding. Wherein, two electric motor 4 are located on both sides of the wheel hub frame 3 axis, two electric motor 4 staggered arrangement to avoid occupying the base 1 passageway space. Each wheel hub frame 3 are wound with hose 5, the inlet of each hose 5 is provided with the inlet joint 6 connected with the fluid supply source, and the outlet is provided with the filling joint 10 connected with the filling equipment. In addition, the speed reduction mechanism in addition to the role of speed reduction, also makes the electric motor 4 and the inlet joint 6 staggered, the specific structure of the speed reduction mechanism and the prior art is similar, not too much.

[0035] As shown in Figure 1 and Figure 2 , a protective fence 23 is provided around the base 1, which is vertically arranged and forms a "J" shape in plan view, thereby improving the safety of the filling process. The two wheel hub frames 3 are located within the protective fence 23, and the opening of the protective fence 23 corresponding to the wheel hub frame 3 is opposite to the opening corresponding to one end of the base 1, thereby avoiding entering the wheel hub frame 3 when passing through the base 1, which affects the safety. The emergency stop switch 24 is installed on the protective fence 23 on one side of the axis of the wheel hub frame 3, and the emergency stop switch 24 is electrically connected with the electric motor 4, thereby facilitating the control of the winch in emergency situations.

[0036] In addition, as shown in Figure 1 and Figure 2 , fluid leakage may occur at the inlet joint 6 when connecting before filling or disconnecting after filling. Therefore, a receiving groove 25 is further provided on the base 1 below the inlet joint 6, and the receiving groove 25 is connected with a oil drain valve 26 located at one end of the base 1 and arranged on the end wall of the base 1. The leaked fluid is collected in the receiving groove 25 and finally discharged through the oil drain valve 26, thereby ensuring the cleanliness of the winch filling environment.

[0037] As shown in Figure 1 and Figure 3 , in order to realize intelligent control of the winch, a monitoring sensor 7 for monitoring pressure and flow rate simultaneously and an automatic control valve 8 for controlling the opening and closing of the inlet joint 6 are connected at the inlet joint 6, and the automatic control valve 8 is located between the monitoring sensor 7 and the inlet joint 6. As shown in Figure 2 and Figure 4 , a flow sensor 11 and a wire displacement sensor 12 are connected at the filling joint 10, and the wire displacement sensor 12 is located between the flow sensor 11 and the filling joint 10. As shown in Figure 2 and Figure 5As shown in the drawings, the operating platform 27 is also installed on the hanging frame 2, the operating platform 27 is communicatively connected with the PLC control center 28, the PLC control center 28 is communicatively connected with the host computer 29, the host computer 29 is connected with the database 30 for storing data, the monitoring sensor 7, the flow sensor 11 and the stay displacement sensor 12 are all communicatively feedback connected with the PLC control center 28, and the electric motor 4 and the automatic control valve 8 are communicatively control connected with the PLC control center 28.

[0038] In the embodiment, as shown in the drawings, Figure 1 and Figure 3 the monitoring sensor 7 is an ultrasonic flow meter or a differential pressure flow meter, and the expansion joint 9 is installed at the inlet joint 6 and located at the end of the automatic control valve 8 away from the monitoring sensor 7, for compensating the relative movement at the inlet joint 6 caused by temperature difference, inertial force or foundation heave, etc.

[0039] As shown in the drawings, Figure 5 the opening of the electric motor 4 and the automatic control valve 8 is controlled by the PLC control center 28 to proceed with the filling, in the filling process, the monitoring sensor 7 monitors the pressure and flow of the fluid entering, the flow sensor 11 monitors the flow of the fluid output, and the stay displacement sensor 12 monitors the displacement of the filling joint 10 under the pulling, and the collected information is feedback to the PLC control center 28, and is input into the host computer 29 for data analysis and storage, the relevant information is displayed on the operating platform 27, and according to the pressure, flow, displacement and other information in the filling process, the electric motor 4 and the automatic control valve 8 are controlled to close and stop the filling in time, and the threshold values of the sensors can also be set in the PLC control center 28, when the data feedback by one of the sensors reaches the corresponding threshold value, the automatic control valve 8 is automatically closed to stop the filling. The PLC automatic control technology used by the PLC control center 28 and the host computer 29 is prior art, and will not be described in more details.

[0040] In the embodiment, as shown in the drawings, Figure 2 and Figure 4 the filling joint 10 is also connected with the connecting joint 13, the self-closing valve 14 and the connecting control valve 15 are provided on the connecting joint 13 for controlling the opening and closing thereof, and the self-closing valve 14 is located between the connecting control valve 15 and the filling joint 10. As shown in the drawings, Figure 6 the connecting arms 16 are symmetrically provided at the end of the connecting joint 13 away from the filling joint 10 for buckling connection with the equipment to be filled. The tension sensor 22 is also provided on the connecting joint 13 and located between the self-closing valve 14 and the connecting control valve 15, the tension sensor 22 is communicatively feedback connected with the PLC control center 28, the connecting control valve 15 is communicatively control connected with the PLC control center 28, and the linkage assembly is provided between the connecting arms 16 and the self-closing valve 14.

[0041] Specifically, as shown in the drawings, Figure 6As shown, the linkage assembly comprises connecting rods 17 hinged to the connecting arm 16 near one end of the connecting joint 13, and a tension rod 19 extending away from the connecting arm 16 along the axial direction of the connecting joint 13 between the ends of the two connecting rods 17 close to each other, the ends of the two connecting rods 17 close to the tension rod 19 are hinged to the tension rod 19, and the hinge axes of the two ends of the connecting rod 17 are both vertically arranged along the length direction of the connecting rod 17 and parallel to each other. The lower end of the tension rod 19 is vertically slidably arranged on the connecting joint 13, and a spring 20 is arranged along the length direction of the tension rod 19 between the lower end of the tension rod 19 and the connecting joint 13. The connecting arm 16 is hingedly arranged on the connecting joint 13, and the hinge axis of the connecting arm 16 is parallel to the hinge axes of the connecting rods 17. The connecting joint 13 is further provided with a linkage rod 21 parallel to the axial direction of the connecting joint 13, the linkage rod 21 is slidably arranged along the length direction of the connecting joint 13, and the end of the linkage rod 21 close to the self-closing valve 14 is correspondingly matched with the opening and closing switch of the self-closing valve 14. The connecting rod 17 is provided with a guide groove 18 arranged along the length direction of the connecting rod 17, and the end of the linkage rod 21 close to the connecting rod 17 is slidably arranged in the guide groove 18.

[0042] As shown in Figure 2 and Figure 6 As shown, the filling joint 10 is connected with the device to be filled through the connecting arm 16 on the connecting joint 13, a tension sensor 22 is arranged to monitor the tension of the connecting joint 13 in real time and feed back to the PLC control center 28, and the threshold value can be set in the PLC control center 28, when the feedback data reaches the threshold value, the PLC control center 28 controls the connecting control valve 15 to be automatically closed. If the automatic control of the connecting control valve 15 fails, the on-site staff can manually close the self-closing valve 14 to stop filling, or disconnect the connecting arm 16 from the device to be filled and close the self-closing valve 14 through the linkage assembly, so as to quickly realize the disconnection of the device to be filled and the closing of the filling.

[0043] As shown in Figure 6 As shown, if the ship body shakes or lifts due to external force, the end of the connecting arm 16 is not stably connected, and the intelligent control fails to timely disconnect, the connecting joint 13 is subjected to tension along the axial direction, the spring 20 drives the tension rod 19 to move along the axial direction, the tension rod 19, the connecting rod 17 and the connecting arm 16 drive the connecting arm 16 to rotate and separate from the device to be filled under the action of the connecting rod 17 mechanism, and in the process of rotating the connecting rod 17, the driving linkage rod 21 is vertically slidably arranged under the cooperation of the guide groove 18 and the linkage rod 21, so as to close the self-closing valve 14.

[0044] The working principle and use method of the utility model:

[0045] The electric motor 4 and the opening of the automatic control valve 8 are controlled by the PLC control center 28 to carry out filling, and the threshold values of the sensors such as the monitoring sensor 7, the flow sensor 11, the pull wire displacement sensor 12, and the tension sensor 22 are set in the PLC control center 28 in advance. During the filling process, the monitoring sensor 7, the flow sensor 11, the pull wire displacement sensor 12, and the tension sensor 22 monitor the pressure, flow, displacement, tension and other information in real time during the filling process, and the collected information is fed back to the PLC control center 28, enters the upper computer 29 for data analysis and storage, and the relevant information is displayed on the operation platform 27, and according to the pressure, flow, displacement and other information during the filling process, the electric motor 4, the automatic control valve 8, the connection control valve 15 and other components are controlled to be closed to stop filling in time.

[0046] The database 30 in the upper computer 29 can store historical records, maintenance information, energy consumption information and other data, so as to analyze and process the information and give optimization suggestions. In addition, if the hull shakes or rises due to external force, the connection arm 16 at the end is not connected stably and the intelligent control fails to disconnect in time, the connecting joint 13 is subjected to tension along the axial direction, and the linkage assembly can drive the connection arm 16 to rotate and unlock and separate from the device to be filled, and at the same time, the self-closing valve 14 is closed, so as to ensure the safety of filling.

[0047] The above description shows and describes the preferred embodiments of the utility model, as described above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed by the above teaching or related technical or knowledge within the scope of the utility model concept described herein. The changes and variations made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the protection scope of the claims attached to the utility model.

Claims

1. An intelligent fill station winch, characterized by: The utility model provides a kind of filling device, including base (1) and mounting frame (2) on base (1), the base (1) both sides are respectively provided with wheel hub bracket (3) of axis horizontal perpendicular to the length direction of base (1), two wheel hub bracket (3) coaxial arrangement and are positioned rotationally mounted on mounting frame (2) around its axis;Two wheel hub bracket (3) are respectively connected with the electric motor (4) of axis vertical arrangement on the side of each other close side by speed reduction mechanism, and two electric motor (4) are located on the both sides of wheel hub bracket (3) axis;Each wheel hub bracket (3) is wound with hose (5), and the inlet of each hose (5) is mounted with inlet joint (6), and outlet is mounted with filling joint (10);The inlet joint (6) is connected with monitoring sensor (7) that simultaneously monitors pressure and flow and automatic control valve (8) that controls the opening and closing of inlet joint (6), and the automatic control valve (8) is located between monitoring sensor (7) and inlet joint (6), and filling joint (10) is connected with flow sensor (11); Mounting frame (2) is also installed with operating platform (27), and operating platform (27) is connected with PLC control center (28) in communication, and PLC control center (28) is connected with host computer (29) in communication, and host computer (29) is connected with database (30);Monitoring sensor (7) and flow sensor (11) are connected with PLC control center (28) in communication feedback, and electric motor (4) and automatic control valve (8) are connected with PLC control center (28) in communication control.

2. An intelligent fill station hoist as claimed in claim 1, characterized in that: Inlet joint (6) is also installed with expansion joint (9), and expansion joint (9) is located at the end of automatic control valve (8) away from monitoring sensor (7).

3. An intelligent fill station hoist as defined in claim 1, wherein: Filling joint (10) is connected with connecting joint (13), and self-closing valve (14) and connecting control valve (15) are provided on connecting joint (13), and self-closing valve (14) is located between connecting control valve (15) and filling joint (10);Connecting joint (13) is symmetrically provided with connecting arm (16) connected with the equipment to be filled tightly on the end away from filling joint (10), and connecting control valve (15) is connected with PLC control center (28) in communication control, and linkage assembly is provided between connecting arm (16) and self-closing valve (14).

4. An intelligent fill station hoist as claimed in claim 3, characterized in that: The linkage component includes a connecting rod (17) hinged to one end of the connecting arm (16) near the connecting joint (13). A tension rod (19) extending away from the connecting arm (16) in the axial direction of the connecting joint (13) is provided between the ends of the two connecting rods (17) close to each other. The ends of the two connecting rods (17) close to the tension rod (19) are hinged to the tension rod (19). The hinge axes at both ends of the connecting rod (17) are horizontally arranged perpendicular to its length direction and are parallel to each other; the lower end of the tension rod (19) is vertically slidably mounted on the connecting joint (13), and a spring (20) arranged along its length direction is connected between its lower end and the connecting joint (13); the connecting arm (16) is hinged to the connecting joint (13), and its hinge axis is parallel to the hinge axis between it and the connecting rod (17); a linkage rod (21) parallel to its axis is further provided on the connecting joint (13). The linkage rod (21) is slidably mounted on the connecting joint (13) along its length direction, and the end thereof close to the self-closing valve (14) is correspondingly matched with the opening and closing switch of the self-closing valve (14). A guide groove (18) arranged along its length direction is provided on the connecting rod (17), and the end of the linkage rod (21) close to the connecting rod (17) is slidably mounted in the guide groove (18).

5. An intelligent fill station hoist as defined in claim 3, wherein: A tension sensor (22) is further provided on the connecting joint (13) between the self-closing valve (14) and the connecting control valve (15), and the tension sensor (22) is communicatively and feedback-connected to the PLC control center (28).

6. An intelligent fill station hoist as defined in claim 1, wherein: A wire displacement sensor (12) is further mounted on the filling joint (i0) between the flow sensor (11) and the filling joint (10), and the wire displacement sensor (12) is communicatively and feedback-connected to the PLC control center (28).

7. An intelligent fill station hoist as defined in claim 1, wherein: Vertical guardrails (23) forming a "U" - shaped structure are provided around the base (1). The two wheel hub frames (3) are located inside the guardrails (23), and the openings of the guardrails (23) corresponding to the wheel hub frames (3) are opposite to the openings at one end of the corresponding base (1); an emergency stop switch (24) is mounted on the guardrail (23) on one side of the axis of the wheel hub frame (3), and the emergency stop switch (24) is electrically controlled and connected to the electric motor (4).

8. An intelligent fill station hoist as in claim 1, wherein: A receiving groove (25) is provided on the base (1) below the inlet joint (6), and the receiving groove (25) is connected to an oil discharge valve (26) located at one end of the base (1) and provided on the end wall of the base (1).

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