Addition and drainage connector falling-off device suitable for swing rod installation

Abstract

The invention discloses a feeding and discharging connector falling-off device suitable for swing rod installation and a falling-off method. The falling support is installed on the upper edge of the swing rod and can adapt to static errors in the swing rod installation process by adjusting the installation positions of all assemblies, and the included angle alpha between the angle of the hanging steel wire rope and the horizontal plane and the length of the hanging steel wire rope extending out of the pulley block are guaranteed. The included angle beta between the tension spring 8 and the horizontal plane and the initial length of the tension spring are ensured; after adjustment and installation are completed, the tension spring, the forced disengaging steel wire rope and the hanging steel wire rope can adapt to large-range dynamic shaking of the swing rod and the rocket body; the ground part of the connector is connected with the falling mechanism, and the falling mechanism comprises three falling modes of hanging balance weight falling, tension spring falling and forced falling assembly falling, so that reliable falling of the swing rod connector is realized.

Description

Technical Field

[0001] The invention relates to a device and method for dropping out a charging and draining connector installed on a swing rod, and in particular to a device and method for dropping out a clamping claw type low-temperature charging and draining connector installed on a swing rod. Background Art

[0002] The swing rod has the technical characteristics of quick disassembly and easy maintenance. The traditional domestic launch vehicle refueling and venting connector generally adopts the swing rod to fall off. However, the installation accuracy of the swing rod is difficult to ensure during the disassembly and assembly process. At the same time, when the swing rod shakes in harsh environments and the launch vehicle itself has a large range of shaking, the adaptability of the shedding mechanism is often difficult to meet. Summary of the invention

[0003] The technical problem solved by the present invention is to overcome the shortcomings of the prior art and provide a device and method for removing a drain connector suitable for installation of a rocker arm, so as to solve the problems of static error, adaptability to a large range of shaking and reliability of removal during the installation of the rocker arm connector.

[0004] The present invention provides a device for removing a charging and discharging connector suitable for installation on a swing rod, characterized in that it comprises: a charging and discharging connector, a discharging mechanism and a protective device;

[0005] The arrow-upper part 5 of the charging and draining connector is mounted on the rocket cabin wall, and the ground part 6 of the charging and draining connector is fixedly connected to the arrow-upper part of the charging and draining connector through a locking mechanism, and the ground part 6 of the charging and draining connector is connected to the shedding mechanism;

[0006] The falling-off mechanism is installed on the swing rod, and when the locking mechanism of the adding and draining connector is unlocked, the ground part of the adding and draining connector is caused to fall off under the action of the falling-off mechanism;

[0007] The protective device 14 is installed at the front end of the shedding bracket 1 of the shedding mechanism, and is used to provide buffering protection to the adding and discharging connector after the ground part of the adding and discharging connector falls off.

[0008] Preferably, the shedding mechanism comprises a shedding bracket 1, a rotating bracket 3, a suspension rod assembly 7, a counterweight assembly 13, and a hanging wire rope 4; wherein,

[0009] The rotating bracket 3 is connected to the falling bracket 1 and can be adjusted up and down, the pulley block 2 on the rotating bracket can be adjusted forward and backward, and the rotating bracket itself can swing left and right around the bearing;

[0010] The falling bracket is fixedly mounted on the swing rod;

[0011] The suspension rod assembly 7 is fixedly connected to the ground part 6 of the filling and discharging connector; the counterweight assembly 13 is installed inside the falling bracket 1; the falling bracket 1 is fixedly connected to the rotating bracket 3; the counterweight assembly is connected to the suspension wire rope 4, and the suspension wire rope 4 passes through the pulley block 2 on the rotating bracket and is connected to the suspension rod assembly 7, and the suspension wire rope 4 can adapt to the swing of the pendulum in all directions by itself, so as to realize the shedding of the counterweight.

[0012] Preferably, the detachment mechanism also includes a forced detachment component, which includes a cylinder 12, a guide pulley 11, and a forced detachment wire rope 10; the forced detachment component is fixedly connected to the rocker arm; the cylinder is connected to the forced detachment wire rope, and the forced detachment wire rope passes through the guide pulley 11 and is connected to the ground part of the adding and discharging connector; thereby achieving forced detachment.

[0013] Preferably, the falling-off mechanism further comprises a tension spring bracket 15, a tension spring 8 and a chain 9; wherein, the tension spring bracket 15 is connected to the falling-off bracket 1 and can be adjusted up and down, one end of the tension spring 8 is connected to the ground part of the adding and discharging connector, and the other end is connected to the chain 9, the chain is connected to the tension spring bracket 15, the initial length of the tension spring is adjusted by the length of the chain, and after installation, the tension spring and the forced-release wire rope 10 can adapt to the swinging of the rocker in all directions by themselves, realizing the falling-off of the tension spring; the falling-off of the counterweight, the falling-off of the tension spring and the forced-release falling are carried out by selecting any one of the falling-off modes or a combination of two or three of the falling-off modes at the same time.

[0014] Preferably, the angle α between the suspension wire rope 4 and the horizontal and the length of the suspension wire rope extending from the pulley block 2 are given priority; the angle β between the tension spring 8 and the horizontal and the initial length of the tension spring are given priority; the angle α between the suspension wire rope and the horizontal is 45°; the angle β between the tension spring and the horizontal is 3-5°.

[0015] Preferably, the locking mechanism of the charging and draining connector is unlocked and then falls off by the hanging counterweight; specifically, after the locking claw of the charging and draining connector is opened, the gravity of the charging and draining connector is balanced with the vertical component of the counterweight, and the horizontal component of the counterweight pulls the connector to achieve the connector falling off and recovering it to the protective device.

[0016] Preferably, after the locking mechanism of the charging and draining connector is unlocked, it is disengaged through a tension spring; specifically, after the locking claw of the charging and draining connector is opened, the tension spring pulls the connector to be disengaged and recovered to the protective device.

[0017] Preferably, after the locking mechanism of the charging and discharging connector is unlocked, it is disengaged through a forced disengagement component; specifically, after the locking claw of the charging and discharging connector is opened, after receiving the signal that the locking claw of the connector is opened, the cylinder air supply action pulls the wire rope, and the wire rope pulls the connector to achieve disengagement and is recovered to the protective device.

[0018] Preferably, the protective device includes two groups of buffer pads installed at the front end of the detachment bracket, and the cross-section of the buffer pads presents a V-shaped structure.

[0019] The present invention also provides a method for removing a adding and discharging connector removal device suitable for installation on a swing rod, comprising the steps of:

[0020] Step 1: Initial adjustment to adapt to deviation; by adjusting the relative position of the pulley block 2 on the rotating bracket 3, the relative position of the rotating bracket 3 on the shedding bracket 1, and the position of the shedding bracket 1 installed on the swing rod, ensure the angle between the suspension wire rope 4 and the horizontal and the length of the suspension wire rope extending out of the pulley block 2; by adjusting the relative position of the tension spring bracket 15 installed on the shedding bracket 1, adjust the angle β between the tension spring 8 and the horizontal; by controlling the length of the chain 9, adjust the initial length of the tension spring;

[0021] The relative position of the pulley block on the rotating bracket is adjusted forward and backward by a screw rod, and the relative position of the rotating bracket to the shedding bracket and the position of the shedding bracket installed on the swing rod are adjusted by reserving multiple rows of threaded holes; according to the actual adjustment accuracy requirements, a slide rail or a U-shaped groove is set for adjustment;

[0022] Step 2: adapt to large shaking; after the ground part 6 of the charging and draining connector is fixedly connected with the arrow-up part 5 of the charging and draining connector through the locking claw, the other fixed connection parts of the ground part 6 of the charging and draining connector include the tension spring 8, the suspension wire rope 4 and the forced release wire rope 10; the tension spring 8 adapts to the large shaking of the ground part 6 of the charging and draining connector relative to the swing rod by its own expansion and contraction; the suspension wire rope 4 can adapt to the large shaking of the ground part 6 of the charging and draining connector relative to the swing rod by sliding up and down the counterweight assembly 13; the forced release wire rope 10 is kept loose by reserving a margin to adapt to the large shaking of the ground part 6 of the charging and draining connector relative to the swing rod;

[0023] Step 3: The hanging wire rope falls off in the following ways: The ground part of the adding and draining connector: after the locking claw is opened, the gravity of the ground part of the adding and draining connector is balanced with the vertical force of the counterweight assembly, and the horizontal force of the counterweight assembly pulls the ground part of the adding and draining connector to realize the falling off of the ground part of the adding and draining connector and recover it to the protective device;

[0024] Or the suspension spring shedding method includes: after the locking claw of the ground part of the charging and draining connector is opened, the tension spring pulls the ground part of the charging and draining connector to fall off and is recovered to the protective device;

[0025] Or the forced-detachment component detachment method includes: after the locking claw of the ground part of the adding and draining connector is opened, after receiving the signal that the locking claw of the ground part of the adding and draining connector is opened, the cylinder air supply action pulls the forced-detachment wire rope, and the forced-detachment wire rope pulls the ground part of the adding and draining connector to achieve detachment and is recovered to the protective device.

[0026] The advantages of the present invention compared with the prior art are:

[0027] (1) The invention provides a device for removing a connector for installing a swing rod, which can adapt to the static errors in various directions during the installation of the swing rod; by using the angle α between the hanging wire rope and the horizontal, the length of the hanging wire rope extending out of the pulley block, the angle β between the tension spring and the horizontal, and the initial length of the tension spring as target parameters for adjustment, the state is stable and is not affected by the installation error of the swing rod;

[0028] (2) The present invention is a device for removing the connector for adding and removing the rod when installing the rod. After installation, the tension spring, the suspension wire rope, and the forced removal wire rope can adapt to the large-scale dynamic shaking of the rod and the arrow body;

[0029] (3) The present invention provides a device for removing a connector for adding or removing a discharger suitable for installation on a swing rod, providing three removal schemes that can be carried out simultaneously; BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a front view of a device and method for removing a charging and discharging connector suitable for installation on a swing rod according to the present invention;

[0031] Figure 2 A top view of a device and method for removing a charging and discharging connector suitable for installation on a swing rod according to the present invention; DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments;

[0033] refer to Figure 1 , Figure 2 The present invention provides a device for removing a charging and discharging connector suitable for installation on a swing rod, characterized in that it comprises: a charging and discharging connector, a discharging mechanism and a protective device;

[0034] The arrow-upper part 5 of the charging and draining connector is mounted on the rocket cabin wall, and the ground part 6 of the charging and draining connector is fixedly connected to the arrow-upper part of the charging and draining connector through a locking mechanism, and the ground part 6 of the charging and draining connector is connected to the shedding mechanism;

[0035] The falling-off mechanism is installed on the swing rod, and when the locking mechanism of the adding and draining connector is unlocked, the ground part of the adding and draining connector is caused to fall off under the action of the falling-off mechanism;

[0036] The protective device 14 is installed at the front end of the shedding bracket 1 of the shedding mechanism, and is used to provide buffering protection to the adding and discharging connector after the ground part of the adding and discharging connector falls off.

[0037] Preferably, the shedding mechanism comprises a shedding bracket 1, a rotating bracket 3, a suspension rod assembly 7, a counterweight assembly 13, and a hanging wire rope 4; wherein,

[0038] The rotating bracket 3 is connected to the falling bracket 1 and can be adjusted up and down, the pulley block 2 on the rotating bracket can be adjusted forward and backward, and the rotating bracket itself can swing left and right around the bearing;

[0039] The falling bracket is fixedly mounted on the swing rod;

[0040] The suspension rod assembly 7 is fixedly connected to the ground part 6 of the filling and discharging connector; the counterweight assembly 13 is installed inside the falling bracket 1; the falling bracket 1 is fixedly connected to the rotating bracket 3; the counterweight assembly is connected to the suspension wire rope 4, and the suspension wire rope 4 passes through the pulley block 2 on the rotating bracket and is connected to the suspension rod assembly 7, and the suspension wire rope 4 can adapt to the swing of the pendulum in all directions by itself, so as to realize the shedding of the counterweight.

[0041] According to one embodiment of the present invention, the detachment mechanism also includes a forced detachment component, which includes a cylinder 12, a guide pulley 11, and a forced detachment wire rope 10; the forced detachment component is fixedly connected to the rocker arm; the cylinder is connected to the forced detachment wire rope, and the forced detachment wire rope passes through the guide pulley 11 and is connected to the ground part of the adding and discharging connector; thereby achieving forced detachment.

[0042] According to one embodiment of the present invention, the falling mechanism also includes a tension spring bracket 15, a tension spring 8, and a chain 9; wherein the tension spring bracket 15 is connected to the falling bracket 1 and can be adjusted up and down, one end of the tension spring 8 is connected to the ground part of the charging and discharging connector, and the other end is connected to the chain 9, and the chain is connected to the tension spring bracket 15. The initial length of the tension spring is adjusted by the length of the chain. After installation, the tension spring and the forced-release wire rope 10 can adapt to the swing of the rocker in all directions by themselves, realizing the falling off of the tension spring; the falling off of the counterweight, the falling off of the tension spring, and the forced-release falling are carried out by selecting any one falling method or a combination of two or three falling methods at the same time.

[0043] According to one embodiment of the present invention, the angle α between the suspension wire rope 4 and the horizontal and the length of the suspension wire rope extending from the pulley block 2 are prioritized; the angle β between the tension spring 8 and the horizontal and the initial length of the tension spring are prioritized; the angle α between the suspension wire rope and the horizontal is 45°; the angle β between the tension spring and the horizontal is 3 to 5°.

[0044] According to one embodiment of the present invention, the locking mechanism of the charging and draining connector is unlocked and then falls off by the hanging counterweight; specifically, after the locking claw of the charging and draining connector is opened, the gravity of the charging and draining connector is balanced with the vertical component of the counterweight, and the horizontal component of the counterweight pulls the connector to achieve the connector falling off and recovering it to the protective device.

[0045] According to one embodiment of the present invention, after the locking mechanism of the charging and discharging connector is unlocked, it is disengaged through a tension spring; specifically, after the locking claw of the charging and discharging connector is opened, the tension spring pulls the connector to disengage and is recovered to the protective device.

[0046] According to one embodiment of the present invention, after the locking mechanism of the charging and discharging connector is unlocked, it is disengaged through a forced disengagement component; specifically, after the locking claw of the charging and discharging connector is opened, after receiving a signal that the locking claw of the connector is opened, the cylinder air supply is actuated to pull the wire rope, and the wire rope pulls the connector to achieve disengagement and is recovered to the protective device.

[0047] According to one embodiment of the present invention, the protective device includes two groups of buffer pads installed at the front end of the detachment bracket, and the cross-section of the buffer pads presents a V-shaped structure.

[0048] The present invention also provides a method for removing a adding and discharging connector removal device suitable for installation on a swing rod, comprising the steps of:

[0049] Step 1: Initial adjustment to adapt to deviation; by adjusting the relative position of the pulley block 2 on the rotating bracket 3, the relative position of the rotating bracket 3 on the shedding bracket 1, and the position of the shedding bracket 1 installed on the swing rod, ensure the angle between the suspension wire rope 4 and the horizontal and the length of the suspension wire rope extending out of the pulley block 2; by adjusting the relative position of the tension spring bracket 15 installed on the shedding bracket 1, adjust the angle β between the tension spring 8 and the horizontal; by controlling the length of the chain 9, adjust the initial length of the tension spring;

[0050] The relative position of the pulley block on the rotating bracket is adjusted forward and backward by a screw rod, and the relative position of the rotating bracket to the shedding bracket and the position of the shedding bracket installed on the swing rod are adjusted by reserving multiple rows of threaded holes; according to the actual adjustment accuracy requirements, a slide rail or a U-shaped groove is set for adjustment;

[0051] Step 2: adapt to large shaking; after the ground part 6 of the charging and draining connector is fixedly connected with the arrow-up part 5 of the charging and draining connector through the locking claw, the other fixed connection parts of the ground part 6 of the charging and draining connector include the tension spring 8, the suspension wire rope 4 and the forced release wire rope 10; the tension spring 8 adapts to the large shaking of the ground part 6 of the charging and draining connector relative to the swing rod by its own expansion and contraction; the suspension wire rope 4 can adapt to the large shaking of the ground part 6 of the charging and draining connector relative to the swing rod by sliding up and down the counterweight assembly 13; the forced release wire rope 10 is kept loose by reserving a margin to adapt to the large shaking of the ground part 6 of the charging and draining connector relative to the swing rod;

[0052] Step 3: The hanging wire rope falls off in the following ways: The ground part of the adding and draining connector: after the locking claw is opened, the gravity of the ground part of the adding and draining connector is balanced with the vertical force of the counterweight assembly, and the horizontal force of the counterweight assembly pulls the ground part of the adding and draining connector to realize the falling off of the ground part of the adding and draining connector and recover it to the protective device;

[0053] Or the suspension spring shedding method includes: after the locking claw of the ground part of the charging and draining connector is opened, the tension spring pulls the ground part of the charging and draining connector to fall off and is recovered to the protective device;

[0054] Or the forced release assembly release method includes: after the locking claw of the ground part of the charging and draining connector is opened, after receiving the signal that the locking claw of the ground part of the charging and draining connector is opened, the cylinder air supply action pulls the forced release wire rope, and the forced release wire rope pulls the ground part of the charging and draining connector to achieve release and recovery

[0055] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations;

[0056] The contents not described in detail in the specification of the present invention belong to the well-known technologies of those skilled in the art.

Claims

1. A device for removing a connector for adding or removing a discharger suitable for installation on a swing rod, characterized in that: include: Adding and discharging connectors, drop-out mechanisms and protective devices; The arrow-upper part (5) of the charging and draining connector is mounted on the rocket cabin wall, the ground part (6) of the charging and draining connector is fixedly connected to the arrow-upper part of the charging and draining connector through a locking mechanism, and the ground part (6) of the charging and draining connector is connected to the shedding mechanism; The falling-off mechanism is installed on the swing rod, and when the locking mechanism of the adding and draining connector is unlocked, the ground part of the adding and draining connector is caused to fall off under the action of the falling-off mechanism; The protective device (14) is installed at the front end of the shedding bracket (1) of the shedding mechanism and is used to provide buffering protection to the adding and draining connector after the ground part of the adding and draining connector falls off.

2. A device for removing a connector for adding or removing a discharger suitable for installation on a swing rod as claimed in claim 1, characterized in that: The shedding mechanism comprises a shedding bracket (1), a rotating bracket (3), a suspension rod assembly (7), a counterweight assembly (13), and a hanging wire rope (4); wherein: The rotating bracket (3) is connected to the falling bracket (1) and can be adjusted up and down, the pulley block (2) on the rotating bracket can be adjusted forward and backward, and the rotating bracket itself can swing left and right around the bearing; The falling bracket is fixedly mounted on the swing rod; The suspension rod assembly (7) is fixedly connected to the ground part (6) of the charging and discharging connector; the counterweight assembly (13) is installed inside the shedding bracket (1); the shedding bracket (1) is fixedly connected to the rotating bracket (3); the counterweight assembly is connected to the suspension wire rope (4), and the suspension wire rope (4) passes through the pulley block (2) on the rotating bracket and is connected to the suspension rod assembly (7), and the suspension wire rope (4) can automatically adapt to the swing of the swing rod in all directions; the counterweight is shed.

3. A device for removing a connector for adding or removing a discharger suitable for installation on a swing rod as claimed in claim 2, characterized in that: The shedding mechanism further comprises a forced shedding component, which comprises a cylinder (12), a guide pulley (11), and a forced shedding steel wire rope (10); the forced shedding component is fixedly connected to the swing rod; the cylinder is connected to the forced shedding steel wire rope, and the forced shedding steel wire rope passes through the guide pulley (11) and is connected to the ground part of the charging and discharging connector; thus achieving forced shedding.

4. A device for removing a connector for adding or removing a discharger suitable for installation on a swing rod as claimed in claim 3, characterized in that: The shedding mechanism further comprises a tension spring bracket (15), a tension spring (8), and a chain (9); wherein the tension spring bracket (15) is connected to the shedding bracket (1) and can be adjusted up and down, one end of the tension spring (8) is connected to the ground part of the charging and discharging connector, and the other end is connected to the chain (9), and the chain is connected to the tension spring bracket (15), and the initial length of the tension spring is adjusted by the length of the chain. After installation, the tension spring and the forced shedding steel wire rope (10) can adapt to the swing of the swing rod in all directions by themselves, so as to realize the shedding of the tension spring; the shedding of the counterweight, the shedding of the tension spring, and the forced shedding are carried out by selecting any one shedding mode or a combination of two or three shedding modes at the same time.

5. A device for removing a connector for adding or removing a discharger suitable for installation on a swing rod according to claim 4, characterized in that: The angle α between the suspension wire rope (4) and the horizontal and the length of the suspension wire rope extending from the pulley block (2) are prioritized; the angle β between the tension spring (8) and the horizontal and the initial length of the tension spring are prioritized; the angle α between the suspension wire rope and the horizontal is 45°; the angle β between the tension spring and the horizontal is 3-5°.

6. A device for removing a connector for adding or removing a discharger suitable for installation on a swing rod according to claim 5, characterized in that: After the locking mechanism of the charging and draining connector is unlocked, it falls off by dropping the hanging counterweight; specifically, after the locking claw of the charging and draining connector is opened, the gravity of the charging and draining connector is balanced with the vertical component of the counterweight, and the horizontal component of the counterweight pulls the connector to make it fall off and be recovered onto the protective device.

7. The device for removing the connector for adding or removing the connector suitable for installation on a swing rod according to claim 5, characterized in that: After the locking mechanism of the charging and draining connector is unlocked, it falls off through the tension spring; specifically: after the locking claws of the charging and draining connector are opened, the tension spring pulls the connector to fall off and is recovered to the protective device.

8. The device for removing the connector for adding or removing the connector suitable for installation on a swing rod according to claim 5, characterized in that: After the locking mechanism of the charging and draining connector is unlocked, it is removed by the forced release assembly; specifically, after the locking claw of the charging and draining connector is opened, after receiving the signal that the locking claw of the connector is opened, the cylinder air supply action pulls the wire rope, and the wire rope pulls the connector to achieve removal and is recovered to the protective device.

9. A device for removing a charging and draining connector suitable for installation on a swing rod according to any one of claims 6 to 8, characterized in that: The protective device includes two groups of buffer pads installed at the front end of the fall-off bracket, and the cross-section of the buffer pads presents a V-shaped structure.

10. A method for removing a detaching device for adding and discharging a connector and installed on a swing rod according to any one of claims 6 to 8, comprising the steps of: Step 1: Initial adjustment to adapt to the deviation; by adjusting the relative position of the pulley block (2) on the rotating bracket (3), the relative position of the rotating bracket (3) on the shedding bracket (1), and the position of the shedding bracket (1) installed on the swing arm, ensure the angle between the suspension wire rope (4) and the horizontal and the length of the suspension wire rope extending from the pulley block (2); by adjusting the relative position of the installation of the tension spring bracket (15) and the shedding bracket (1), adjust the angle β between the tension spring (8) and the horizontal; by controlling the length of the chain (9), adjust the initial length of the tension spring; The relative position of the pulley block on the rotating bracket is adjusted forward and backward by a screw rod, and the relative position of the rotating bracket to the shedding bracket and the position of the shedding bracket installed on the swing rod are adjusted by reserving multiple rows of threaded holes; according to the actual adjustment accuracy requirements, a slide rail or a U-shaped groove is set for adjustment; Step 2: adapting to large shaking; after the ground part (6) of the charging and draining connector is fixedly connected to the arrow-shaped part (5) of the charging and draining connector through the locking claw, the remaining fixed connection parts of the ground part (6) of the charging and draining connector include a tension spring (8), a suspension wire rope (4) and a forced release wire rope (10); the tension spring (8) adapts to large shaking of the ground part (6) of the charging and draining connector relative to the swing rod by its own expansion and contraction; the suspension wire rope (4) can adapt to large shaking of the ground part (6) of the charging and draining connector relative to the swing rod by sliding up and down the counterweight assembly (13); the forced release wire rope (10) is kept loose by reserving a margin to adapt to large shaking of the ground part (6) of the charging and draining connector relative to the swing rod; Step 3: The hanging wire rope falls off in the following ways: The ground part of the adding and draining connector: after the locking claw is opened, the gravity of the ground part of the adding and draining connector is balanced with the vertical force of the counterweight assembly, and the horizontal force of the counterweight assembly pulls the ground part of the adding and draining connector to realize the falling off of the ground part of the adding and draining connector and recover it to the protective device; Or the suspension spring shedding method includes: after the locking claw of the ground part of the charging and draining connector is opened, the tension spring pulls the ground part of the charging and draining connector to fall off and is recovered to the protective device; Or the forced-detachment component detachment method includes: after the locking claw of the ground part of the adding and draining connector is opened, after receiving the signal that the locking claw of the ground part of the adding and draining connector is opened, the cylinder air supply action pulls the forced-detachment wire rope, and the forced-detachment wire rope pulls the ground part of the adding and draining connector to achieve detachment and is recovered to the protective device.

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