A universal joint for hanging that is easy to disassemble and assemble

Abstract

The present invention relates to the technical field of universal joints, and discloses a universal joint for hanging that is easy to disassemble and assemble, comprising a top platform and a rolling ball that rotates on the top platform, a connecting rod is provided at the bottom of the rolling ball, the ball surface of the rolling ball is provided with an initial ball support frame assembly and an auxiliary ball support frame assembly for lifting the rolling ball, a push rod is provided on the top platform to abut against the surface of the rolling ball, an oil pumping tank is provided inside the top platform, and the push rod changes its position in the oil pumping tank by changing the position of the top groove, and a triggering part for triggering the auxiliary ball support frame assembly to open is provided inside the oil pumping tank. The present invention connects two adjacent first ball support frames and second ball support frames through an elastic rope, which will pull the first ball support frame and the second ball support frame, which were originally in different heights, to the same horizontal plane, that is, to achieve an increase in the downward pressure of the rolling ball with the connecting rod, and to increase the second ball support frame supporting the bottom to share the downward pressure, thereby improving the overall load-bearing capacity.

Description

Technical Field

[0001] The invention relates to the technical field of universal joints, and in particular to a universal joint for hanging which is easy to assemble and disassemble. Background Art

[0002] In recent years, with the rapid development of my country's sports industry, my country's sports standardization work has also been promoted simultaneously. At present, 364 sports standards have been officially promulgated and implemented, including 6 categories such as sports equipment, venue construction and services, facilities and equipment, and sports information. The promulgation and implementation of these standards have played a huge role in safeguarding sports and promoting the development of the sports industry. When installing sports equipment, a universal joint for suspension is required, but the existing universal joint for suspension has many problems or defects;

[0003] First, the force direction of the universal joint in sports equipment is usually vertically downward. During the use of the universal joint, most of the force will act on the notch at the bottom, which will cause uneven stress distribution and damage to the universal joint, which will affect the normal activity and use of the universal joint. However, it is extremely difficult to replace a damaged universal joint.

[0004] Secondly, if this universal joint contacts the movable ball too much, the movement will be obstructed, and if the movable gap is too large or too small, it will affect the movement. If the gap is too large, it will cause debris to enter and cause blockage, and if the gap is too small, it will affect the movement of the movable ball. Therefore, a universal joint that does not affect the movement of the movable ball and can support the movable ball is needed.

[0005] Therefore, we designed a universal joint for hanging that is easy to disassemble and assemble. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that a gap that is too large or too small will affect the movement, a gap that is too large will cause debris to enter and cause blockage, and a gap that is too small will affect the movement of the active ball, and a universal joint for hanging that is easy to disassemble and assemble is proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A universal joint for hanging that is easy to disassemble and assemble comprises a top platform and a rolling ball that rotates on the top platform, a connecting rod is provided at the bottom of the rolling ball, an initial ball support frame assembly and an auxiliary ball support frame assembly are provided on the surface of the rolling ball for supporting the rolling ball, a push rod is provided on the top platform for abutting against the surface of the rolling ball, an oil pumping tank is provided inside the top platform, and the push rod changes its position in the oil pumping tank by changing the position of a top groove, a triggering part for triggering the auxiliary ball support frame assembly to open is provided inside the oil pumping tank, a plurality of curved holes arranged in a circle and used for sliding support of the initial ball support frame assembly and the auxiliary ball support frame assembly are provided inside the top platform, and the oil pumping tank is connected to the curved holes through a connecting pipe.

[0009] Preferably, the rolling ball rotates on the top platform through a hemispherical groove, wherein the center of the rolling ball is located below the top platform.

[0010] Preferably, the initial ball supporting rack assembly includes a plurality of first ball supporting racks arranged in a circle, and the auxiliary ball supporting rack assembly includes a plurality of second ball supporting racks arranged in a circle, and the first ball supporting rack and the second ball supporting rack slide in a circle on the curved hole through the first curved rod and the second curved rod respectively, and the first curved rod and the second curved rod both slide in the curved hole through a piston, and the first ball supporting rack and the second ball supporting rack are respectively provided with a first ball and a second ball on the side facing the rolling ball, which are against the outer wall of the rolling ball, and the first ball supporting rack is provided with a first pressure sensor, and the second ball supporting rack is provided with a second pressure sensor.

[0011] Preferably, the second ball supporting rack is made of metal iron, an electromagnetic generator for attracting the second ball supporting rack is provided in the curved hole, and the first pressure sensor is electrically connected to the electromagnetic generator.

[0012] Preferably, an oil storage tank is added to the top of the oil pumping tank, and an electric oil pump is provided in the oil storage tank, the second pressure sensor is electrically connected to the electric oil pump, a liquid pumping plate that slides by a reset spring is provided in the oil pumping tank, and the support rod is coaxially fixed with the liquid pumping plate, a rod guide tube that provides stable sliding for the support rod is provided at the bottom of the oil pumping tank, the liquid pumping plate divides the oil pumping tank into an upper chamber and a lower chamber, and the oil storage tank is connected to the lower chamber through a rubber hose.

[0013] Preferably, the connecting pipe includes a plurality of first through pipes and second through pipes arranged in a circle, and the first through pipes and the second through pipes are distributed alternately, the first through pipes are connected to the auxiliary ball support rack assembly, and the second through pipes are connected to the initial ball support rack assembly, the liquid pumping plate is provided with side grooves arranged in a circle, and a plurality of baffles for blocking the flow of oil in the first through pipes are inserted in the side grooves.

[0014] Preferably, the trigger part includes a rotating ring and a friction wheel that transmit transmission to each other, the friction wheel is transmitted to the rotating ring through a through hole opened on the outer wall of the oil pumping tank, and the bottom of the rotating ring is connected to multiple baffles, the outer wall of the oil pumping tank is provided with a driving motor for driving the friction wheel to rotate, and the first pressure sensor is electrically connected to the driving motor.

[0015] Preferably, the top groove is opened at the top of the rolling ball, and the top groove is a curved surface, and the abutment rod abuts against the top groove through a return spring.

[0016] Preferably, the first ball supporting rack and the second ball supporting rack are located in different horizontal planes, and a plurality of first ball supporting racks and a plurality of second ball supporting racks are arranged alternately.

[0017] Preferably, two adjacent first ball supporting racks and second ball supporting racks are connected by an elastic rope.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention connects two adjacent first ball supporting racks and second ball supporting racks through an elastic rope, which will pull the first ball supporting rack and the second ball supporting rack, which are originally in different heights, to the same horizontal plane, so that the downward pressure of the rolling ball brought by the connecting rod is increased, and the downward pressure is shared by adding a second ball supporting rack to the bottom, thereby improving the overall load-bearing capacity.

[0020] 2. The present invention uses a method in which the oil in the second through-tube is extracted during the lifting process of the pumping plate to drive the initial ball supporting rack assembly to be lifted, or the oil in the first through-tube and the second through-tube is extracted to drive the initial ball supporting rack assembly and the auxiliary ball supporting rack assembly to be lifted synchronously. The effect of this method is that it can effectively prevent the connecting rod from touching the initial ball supporting rack assembly and the auxiliary ball supporting rack assembly due to the increase in the swing amplitude of the rolling ball, thereby providing swing space for the connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a universal joint for hanging that is easy to disassemble and assemble, as proposed by the present invention;

[0022] Figure 2 A partial cross-sectional view of a universal joint for suspension that is easy to disassemble and assemble proposed by the present invention;

[0023] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0024] Figure 4 A partial cross-sectional view of a rolling ball of a universal joint for suspension that is easy to disassemble and assemble proposed by the present invention;

[0025] Figure 5A schematic diagram of a first state of a ball support bracket assembly in a universal joint for suspension that is easy to disassemble and assemble, proposed by the present invention;

[0026] Figure 6 A schematic diagram of a second state of a ball support bracket assembly in a universal joint for suspension that is easy to disassemble and assemble proposed by the present invention;

[0027] Figure 7 A schematic diagram of a third state of a ball support bracket assembly in a universal joint for suspension that is easy to disassemble and assemble, as proposed by the present invention;

[0028] Figure 8 A schematic diagram of a first state of an oil pumping tank in a universal joint for hanging that is easy to assemble and disassemble proposed by the present invention;

[0029] Fig. 9 A schematic diagram of a second state of an oil pumping tank in a universal joint for hanging that is easy to assemble and disassemble proposed by the present invention;

[0030] Fig.10 Adjust the state diagram for the changing forces on the rolling ball.

[0031] In the figure: 1, top platform; 2, hemispherical groove; 3, rolling ball; 4, connecting rod; 5, first ball support rack; 6, second ball support rack; 7, elastic rope; 8, first curved rod; 9, second curved rod; 10, top groove; 11, support rod; 12, curved hole;

[0032] 13, connecting pipe; 131, first connecting pipe; 132, second connecting pipe;

[0033] 14. Oil pumping tank; 15. Electromagnetic generator; 16. First ball; 17. Second ball; 18. Piston; 19. Oil storage tank; 20. Rubber hose; 21. Rod guide tube; 22. Pumping plate; 23. Rotating ring; 24. Baffle; 25. Friction wheel; 26. Drive motor; 27. Return spring; 28. Side groove. DETAILED DESCRIPTION

[0034] Reference Figure 1-Figure 10 A universal joint for hanging that is easy to disassemble and assemble comprises a top platform 1 and a rolling ball 3 rotating on the top platform 1, a connecting rod 4 is arranged at the bottom of the rolling ball 3, and the rolling ball 3 rotates on the top platform 1 through a hemispherical groove 2, wherein the center of the rolling ball 3 is located below the top platform 1, referring to Figure 5 State, at this time, the rolling ball 3 and the hemispherical groove 2 are less than the semi-enclosed state, which has the following advantages compared with the state greater than the semi-enclosed state in the prior art:

[0035] In this state, if the initial ball support frame assembly is released from supporting the rolling ball 3, the rolling ball 3 and the connecting rod 4 are in a disassembled state, which is convenient for better replacement and observation of the rolling ball 3.

[0036] In this technical solution, the center of the rolling ball 3 is located below the top table 1, which can effectively reduce the contact area above the rolling ball 3 and reduce sliding friction compared with the traditional ball table and base, making the rolling ball 3 swing more smoothly.

[0037] The ball surface of the rolling ball 3 is provided with an initial ball support frame assembly and an auxiliary ball support frame assembly for supporting the rolling ball 3, so that:

[0038] The rolling ball 3 is supported by the initial ball support frame assembly at the bottom, ensuring that the area below the rolling ball 3 in contact during rolling is only the initial ball support frame assembly and the auxiliary ball support frame assembly, which can effectively reduce blockage.

[0039] Reference Figure 2 and Figure 3 State, wherein the initial ball supporting rack assembly includes a plurality of first ball supporting racks 5 arranged in a circle, the auxiliary ball supporting rack assembly includes a plurality of second ball supporting racks 6 arranged in a circle, and a plurality of curved holes 12 arranged in a circle and used for sliding support for the initial ball supporting rack assembly and the auxiliary ball supporting rack assembly are provided in the top platform 1, the first ball supporting rack 5 and the second ball supporting rack 6 slide in a circle on the curved hole 12 respectively through the first curved rod 8 and the second curved rod 9, and the first curved rod 8 and the second curved rod 9 both slide in the curved hole 12 through the piston 18, wherein it should be noted that the first ball supporting rack 5 and the second ball supporting rack 6 are always ensured to be in contact with the rolling ball 3 during the sliding process relying on the first curved rod 8 and the second curved rod 9, thereby achieving the supporting effect of the plurality of first ball supporting racks 5 and the second ball supporting rack 6 on the rolling ball 3, while also ensuring support for the rotation of the rolling ball 3.

[0040] It should be noted that during use, the initial ball support frame assembly is used to first support the rolling ball 3, and the auxiliary ball support frame assembly is located above the center of the rolling ball 3, that is, Figure 5 In this state, the auxiliary ball supporting frame assembly does not play a role in bearing force on the rolling ball 3, that is, in this state, when the connecting rod 4 rotates and presses down with the rolling ball 3, it only plays a supporting role for the initial ball supporting frame assembly.

[0041] Reference Figure 3 In this state, the first ball supporting frame 5 and the second ball supporting frame 6 are respectively provided with a first ball 16 and a second ball 17 which are against the outer wall of the rolling ball 3 on the side facing the rolling ball 3. The first ball 16 and the second ball 17 are used in this technical solution to replace the friction sliding in the traditional universal ball joint, that is, the rolling friction replaces the sliding friction, thereby reducing the friction, thereby ensuring that the use of the universal joint in this solution is smoother.

[0042] A first pressure sensor is provided on the first ball supporting rack 5, and the first pressure sensor is arranged between the first ball supporting rack 5 and the first ball 16. In this way, during use, the connecting rod 4 rotates and presses down with the rolling ball 3, which will continuously make the first ball 16 press the first pressure sensor. When the first pressure sensor reaches a critical state, it will trigger the subsequent shutdown of the electromagnetic generator 15 and the start of the drive motor 26.

[0043] Among them, reference Figure 3 It is shown that the second ball holding rack 6 is made of metal iron, and an electromagnetic generator 15 for attracting the second ball holding rack 6 is provided in the curved hole 12. The first pressure sensor is electrically connected to the electromagnetic generator 15. This arrangement can ensure that before the electromagnetic generator 15 is turned off, the magnetism generated by the electromagnetic generator 15 when it is powered on can attract the second ball holding rack 6 to prevent the second ball holding rack 6 from falling. After the electromagnetic generator 15 is powered off, the magnetic field disappears, thereby releasing the limit of the second ball holding rack 6 and allowing the second ball holding rack 6 to have the conditions to slide down. The first pressure sensor is pressurized to transmit the electrical signal to the electromagnetic generator 15, and the power-off of the electromagnetic generator 15 is a prior art and will not be elaborated on here.

[0044] The oil pumping tank 14 is connected to the curved hole 12 through the connecting pipe 13. This arrangement can ensure that the oil in the oil pumping tank 14 can flow into the curved hole 12 through the connecting pipe 13, and push the first curved rod 8 and the second curved rod 9 with the piston 18 to slide with the corresponding first ball support rack 5 and the second ball support rack 6.

[0045] Reference Figure 8 and Fig. 9 State, the connecting pipe 13 includes a plurality of first through pipes 131 and second through pipes 132 arranged in a circle, and the first through pipes 131 and the second through pipes 132 are distributed alternately, the first through pipe 131 is connected to the auxiliary ball supporting rack assembly, and the second through pipe 132 is connected to the initial ball supporting rack assembly, when the oil flowing into the second through pipe 132 will push the initial ball supporting rack assembly to fall and hold up the rolling ball 3, and the connection of the first through pipe 131 will push the auxiliary ball supporting rack assembly to fall and assist in holding up the rolling ball 3, so as to share part of the downward pressure on the rolling ball 3.

[0046] The liquid extraction plate 22 is provided with a circumferentially arranged side groove 28, and a plurality of baffles 24 are inserted into the side groove 28 for blocking the flow of oil in the first through pipe 131. This arrangement can ensure that the lifting and lowering of the liquid extraction plate 22 will not affect the position of the baffle 24, and the rotation of the baffle 24 will not affect the change in the height position of the liquid extraction plate 22.

[0047] A driving motor 26 for driving the friction wheel 25 to rotate is provided on the outer wall of the oil pumping tank 14. The first pressure sensor is electrically connected to the driving motor 26 to ensure that the driving motor 26 is turned on after the first pressure sensor is pressurized, thereby driving the friction wheel 25 to rotate, providing power for the rotation of the friction wheel 25. The rotation of the friction wheel 25 is a certain angle of deflection, that is, driving the baffle 24 to no longer block the first through pipe 131.

[0048] Reference Figure 8 and Fig. 9 As shown, a triggering part for triggering the opening of the auxiliary ball support frame assembly is provided in the oil pumping tank 14, and the triggering part includes a rotating ring 23 and a friction wheel 25 that transmit transmission to each other. The friction wheel 25 transmits transmission to the rotating ring 23 through a through hole provided in the outer wall of the oil pumping tank 14. Since the bottom of the rotating ring 23 is connected to a plurality of baffles 24, the rotating ring 23 and the plurality of baffles 24 below are driven to rotate, thereby opening the first through pipe 131 that was originally blocked.

[0049] Since the liquid extraction plate 22 divides the oil extraction tank 14 into an upper chamber and a lower chamber, the following states will occur before and after the first through pipe 131 is opened:

[0050] Before the first through pipe 131 is opened, Figure 5 At this time, the oil in the lower chamber pushes the first curved rod 8 in the curved hole 12 to move the first ball support frame 5 downward through the second through pipe 132, or the oil in the curved hole 12 is pumped into the lower chamber to retract the first curved rod 8 and the first ball support frame 5. It should be noted that at this time, only the initial ball support frame assembly supports the rolling ball 3;

[0051] When the first through pipe 131 is opened, Figure 6 state, at this time the first through pipe 131 is connected with the second through pipe 132 through the lower cavity, and the power-off operation of the upper electromagnetic generator 15 is cooperated to release the positioning of the second ball supporting rack 6. Since the two adjacent first ball supporting racks 5 and the second ball supporting racks 6 are connected by the elastic rope 7, the first ball supporting racks 5 and the second ball supporting racks 6, which were originally in different heights, will be pulled to the same horizontal plane, that is, the connecting rod 4 brings the rolling ball 3 to increase the downward pressure, and the second ball supporting racks 6 that support the bottom are increased to share the downward pressure, thereby improving the overall carrying capacity.

[0052] The first ball supporting rack 5 and the second ball supporting rack 6 are located in different horizontal planes, and multiple first ball supporting racks 5 and multiple second ball supporting racks 6 are arranged alternately. Such an arrangement can ensure that when the bearing capacity of the first ball supporting rack 5 is too large, the second ball supporting rack 6 will slide down between the two first ball supporting racks 5 to share the overload force and better distribute and balance the pressure.

[0053] The top platform 1 is provided with an oil pumping tank 14, and an oil storage tank 19 is added on the top of the oil pumping tank 14, and an electric oil pump is arranged in the oil storage tank 19, and a second pressure sensor is arranged on the second ball support frame 6, and the second pressure sensor is electrically connected to the electric oil pump. The oil storage tank 19 is connected to the lower cavity through a rubber hose 20. Figure 6 In this state, the first ball support frame 5 and the second ball support frame 6 jointly support the rolling ball 3. At this time, the connecting rod 4 continues to increase the downward pressure of the rolling ball 3, and the second pressure sensor located between the second ball support frame 6 and the second ball 17 will transmit an electrical signal to the electric oil pump, and start the electric oil pump to pump the oil in the oil storage tank 19 into the lower cavity through the rubber hose 20. At this time, the first curved rod 8 and the second curved rod 9 will slide down with the first ball support frame 5 and the second ball support frame 6 to form a Figure 7 state.

[0054] Reference Fig.10 State, the original downward force is G1, which is decomposed into two F1 through force. When G1 increases to G2, the first ball supporting rack 5 and the second ball supporting rack 6 slide down together to reduce the opening angle, that is, two F2 states are formed, which can also support the increased G2. Therefore, the technical solution is to adapt to the force by changing the position of the first ball supporting rack 5 and the second ball supporting rack 6 at the bottom of the rolling ball 3.

[0055] When the swing amplitude increases, the following adjustments are made:

[0056] The top groove 10 is opened at the top of the rolling ball 3, and a push rod 11 is provided on the top platform 1 to resist the surface of the rolling ball 3, and the top groove 10 is a curved surface. The push rod 11 resists the top groove 10 through a reset spring 27. The push rod 11 changes its position in the oil pumping tank 14 by changing the position of the top groove 10, that is, when the swing amplitude of the connecting rod 4 with the rolling ball 3 increases, the height of the top groove 10 on the rolling ball 3 to lift the push rod 11 will be higher.

[0057] A pumping plate 22 which is reset and slid by a reset spring 27 is provided in the oil pumping tank 14, and the push rod 11 is coaxially fixed with the pumping plate 22. A rod guide tube 21 which provides stable sliding for the push rod 11 is provided at the bottom of the oil pumping tank 14. When the push rod 11 is lifted by the top groove 10, the pumping plate 22 on the top of the push rod 11 will be lifted together. Since a sealing rubber ring is provided on the side wall of the pumping plate 22, an effective sealing effect can be achieved. Therefore, during the lifting process of the pumping plate 22, the oil in the second through pipe 132 will be drawn out to drive the initial ball support rack assembly to be lifted, or the oil in the first through pipe 131 and the second through pipe 132 will be drawn out to drive the initial ball support rack assembly and the auxiliary ball support rack assembly to be lifted synchronously. This has the effect of effectively preventing the connecting rod 4 from touching the initial ball support rack assembly and the auxiliary ball support rack assembly due to the increase in the swing amplitude of the rolling ball 3, thereby providing a swinging space for the swing of the connecting rod 4.

[0058] At the same time, according to this structure, the rolling ball 3 can be rotated until the smooth surface presses against the push rod 11 to the highest point. This state is extremely difficult to occur during normal use, and the rolling ball 3 will only be rotated to this range during the disassembly and replacement process. When the push rod 11 reaches the highest point, the oil in the curved hole 12 will enter the lower cavity. At this time, the initial ball supporting rack assembly and the auxiliary ball supporting rack assembly will all be located above the center of the rolling ball 3. In this state, you only need to hold the initial ball supporting rack assembly and the auxiliary ball supporting rack assembly to take out the rolling ball 3, thereby completing the replacement of the rolling ball 3.

[0059] The working principle of the present invention is as follows:

[0060] When the first ball supporting rack 5 and the second ball supporting rack 6 slide by relying on the first curved rod 8 and the second curved rod 9, they are always ensured to be in contact with the rolling ball 3, thereby achieving the supporting effect of the rolling ball 3 by the multiple first ball supporting racks 5 and the second ball supporting racks 6, and also ensuring the support for the rotation of the rolling ball 3.

[0061] During use, the connecting rod 4 rotates and presses down with the rolling ball 3, which will continuously cause the first rolling ball 16 to press the first pressure sensor. When the first pressure sensor reaches a critical state, it will trigger the subsequent shutdown of the electromagnetic generator 15 and the opening of the drive motor 26. At this time, the first through tube 131 and the second through tube 132 are connected through the lower cavity, and the power-off operation of the upper electromagnetic generator 15 is coordinated to release the positioning of the second ball supporting rack 6. Since the two adjacent first ball supporting racks 5 and the second ball supporting racks 6 are connected by an elastic rope 7, the first ball supporting racks 5 and the second ball supporting racks 6, which were originally in different heights, will be pulled to the same horizontal plane, that is, the connecting rod 4 will increase the downward pressure of the rolling ball 3, and the second ball supporting racks 6 that support the bottom are increased to share the downward pressure, thereby improving the overall load-bearing capacity.

[0062] The first ball supporting frame 5 and the second ball supporting frame 6 are respectively provided with a first ball 16 and a second ball 17 which abut against the outer wall of the rolling ball 3 on the side facing the rolling ball 3. The first ball 16 and the second ball 17 are used in this technical solution to replace the friction sliding in the traditional universal ball joint, that is, the rolling friction replaces the sliding friction, thereby reducing the friction, thereby ensuring that the use of the universal joint in this solution is smoother.

[0063] During the lifting process of the liquid pumping plate 22, the oil in the second through pipe 132 will be pumped out to drive the initial ball rack assembly to lift, or the oil in the first through pipe 131 and the second through pipe 132 will be pumped out to drive the initial ball rack assembly and the auxiliary ball rack assembly to lift synchronously. The effect of this is that it can effectively prevent the connecting rod 4 from touching the initial ball rack assembly and the auxiliary ball rack assembly due to the increase in the swing amplitude of the rolling ball 3, thereby providing swinging space for the connecting rod 4.

[0064] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A universal joint for hanging that is easy to assemble and disassemble, comprising a top platform (1) and a rolling ball (3) rotating on the top platform (1), a connecting rod (4) being provided at the bottom of the rolling ball (3), characterized in that: The ball surface of the rolling ball (3) is provided with an initial ball support frame assembly and an auxiliary ball support frame assembly for supporting the rolling ball (3); the top platform (1) is provided with a push rod (11) that pushes against the surface of the rolling ball (3); an oil pumping tank (14) is provided in the top platform (1), and the push rod (11) changes its position in the oil pumping tank (14) by changing the position of the top groove (10); a triggering part for triggering the auxiliary ball support frame assembly to open is provided in the oil pumping tank (14); a plurality of curved holes (12) arranged in a circumference and used for slidingly supporting the initial ball support frame assembly and the auxiliary ball support frame assembly are provided in the top platform (1), and the oil pumping tank (14) is connected to the curved hole (12) through a connecting pipe (13), wherein the initial ball support frame assembly includes a connecting pipe (13) and a connecting pipe (13) arranged in a circumferential manner. A plurality of first ball support racks (5) are arranged circumferentially, the auxiliary ball support rack assembly comprises a plurality of second ball support racks (6) arranged circumferentially, and the first ball support rack (5) and the second ball support rack (6) slide circumferentially on the curved hole (12) respectively through a first curved rod (8) and a second curved rod (9), the first curved rod (8) and the second curved rod (9) both slide in the curved hole (12) through a piston (18), the first ball support rack (5) and the second ball support rack (6) are respectively provided with a first rolling ball (16) and a second rolling ball (17) abutting against the outer wall of the rolling ball (3) on the side facing the rolling ball (3), the first ball support rack (5) is provided with a first pressure sensor, the second ball support rack (6) is provided with a second pressure sensor, and the second ball support rack (6) is provided with a second pressure sensor. The material is metal iron, an electromagnetic generator (15) for attracting the second ball support frame (6) is provided in the curved hole (12), the first pressure sensor is electrically connected to the electromagnetic generator (15), an oil storage tank (19) is added to the top of the oil pumping tank (14), and an electric oil pump is provided in the oil storage tank (19), the second pressure sensor is electrically connected to the electric oil pump, a liquid pumping plate (22) is provided in the oil pumping tank (14) and is reset and slid by a reset spring (27), and the support rod (11) and the liquid pumping plate (22) are coaxially fixed, a rod guide tube (21) is provided at the bottom of the oil pumping tank (14) to provide stable sliding for the support rod (11), the liquid pumping plate (22) divides the oil pumping tank (14) into an upper chamber and a lower chamber, and the oil storage tank (19) is connected to the oil pumping tank (14) through a rubber hose (20) is communicated with the lower chamber, the communicating tube (13) comprises a plurality of first communicating tubes (131) and second communicating tubes (132) arranged in a circumferential manner, and the first communicating tubes (131) and the second communicating tubes (132) are alternately distributed, the first communicating tubes (131) are connected to the auxiliary ball support frame assembly, and the second communicating tubes (132) are connected to the initial ball support frame assembly, the pumping plate (22) is provided with a circumferentially arranged side groove (28), and a plurality of baffles (24) for blocking the flow of oil in the first communicating tube (131) are inserted in the side groove (28), the triggering portion comprises a rotating ring (23) and a friction wheel (25) which are mutually transmitted, and the friction wheel (25) is transmitted to the rotating ring (23) through a through hole provided in the outer wall of the oil pumping tank (14),The bottom of the rotating ring (23) is connected to a plurality of baffles (24); the outer wall of the oil pumping tank (14) is provided with a driving motor (26) for driving the friction wheel (25) to rotate; the first pressure sensor is electrically connected to the driving motor (26); the first ball supporting rack (5) and the second ball supporting rack (6) are located at different horizontal planes; a plurality of first ball supporting racks (5) and a plurality of second ball supporting racks (6) are arranged alternately; and two adjacent first ball supporting racks (5) and second ball supporting racks (6) are connected via an elastic rope (7).

2. The universal joint for suspension that is easy to assemble and disassemble according to claim 1, characterized in that: The rolling ball (3) rotates on the top platform (1) through the hemispherical groove (2), wherein the center of the rolling ball (3) is located below the top platform (1).

3. The universal joint for suspension that is easy to assemble and disassemble according to claim 1, characterized in that: The top groove (10) is formed on the top of the rolling ball (3), and the top groove (10) is a curved surface. The abutment rod (11) abuts against the top groove (10) via a return spring (27).

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