A new type of domestic double-ear ball joint

Abstract

The present invention discloses a domestically produced double-ear ball joint with a novel structure, wherein the range-extending mechanism comprises two connecting shafts, one ends of the two connecting shafts are fitted together, the other end of one of the connecting shafts is fixedly connected to the connecting end of a ball joint body through a coupling, the outer surfaces of the two connecting shafts are provided with sliding grooves, the sliding grooves on both sides are equidistant and staggered on the two connecting shafts, a connecting rod is movably connected inside the sliding groove, a spring is sleeved on the outer surface of the connecting rod, a compensation component is arranged outside the spring, one end of the connecting rod is movably connected to the body of the connecting shaft through, and one end of the connecting rod is fixedly connected to the outer surface of the connecting shaft on the other side, relating to the technical field of ball joints, and solving the problem that when an existing large swing angle combined ball joint is used, due to the fixed length of the pull rod connecting the ball joints on both sides, when the vehicle turns and swings at a large angle, the spacing between the ball joints on both sides changes accordingly, causing the pull rod to interfere with the steering or causing the pull rod to become disconnected.

Description

Technical Field

[0001] The invention relates to the technical field of ball joints, in particular to a domestically produced double-ear ball joint with a novel structure. Background Art

[0002] The traditional ball joint used in the vehicle suspension and steering control device has a small swing angle, mostly within the range of 40°. Although it can meet general functional requirements, the swing angle of special vehicles under special working conditions is larger than that of traditional ball joints. In this case, the traditional ball joint cannot meet the use requirements. A large swing angle combined ball joint with application number 2018214753819 includes: a first sub-ball joint, a second sub-ball joint, a first Y-shaped fork, a second Y-shaped fork, and a pull rod; the device effectively increases the swing angle range of the ball joint, increases the motion transmission range, and increases the swing amount of the rod system without increasing the degree of freedom of the structure.

[0003] Although this device improves the swing angle range of the ball joint, when in use, the ball joints on both sides are fixedly connected by a tie rod of fixed length, resulting in a fixed distance between the ball joints. In special circumstances, when the swing angle of the ball joint increases, the distance between the ball joints on both sides will also change accordingly. Since the tie rod length of this device is fixed, it is easy to interfere with the steering of the vehicle, or it is easy to cause the tie rod and the ball joint to become disconnected during large-angle steering. Therefore, it is necessary to solve the above-mentioned problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a domestically produced double-ear ball joint with a novel structure, which solves the problem that when the existing large-swinging-angle combined ball joint is used, since the length of the tie rod connecting the ball joints on both sides is fixed, when the vehicle turns and swings at a large angle, the distance between the ball joints on both sides changes accordingly, causing the tie rod to interfere with the steering or cause the tie rod to become disconnected.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a domestic double-ear ball joint of a new structure, comprising a ball joint body, the outside of which is provided with a range-extending mechanism;

[0006] The range-extending mechanism comprises two connecting shafts, one ends of the two connecting shafts are fitted with each other, the other end of one of the connecting shafts is fixedly connected to the connecting end of the ball joint body through a coupling, the outer surfaces of the two connecting shafts are provided with sliding grooves, and the sliding grooves on both sides are equidistant and staggered on the two connecting shafts, a connecting rod is movably connected inside the sliding groove, a spring is sleeved on the outer surface of the connecting rod, and a compensation component is arranged outside the spring, one end of the connecting rod is movably connected to the body of the connecting shaft, one end of the connecting rod is fixedly connected to the outer surface of the connecting shaft on the other side, a slide plate is movably connected inside the sliding groove, the body of the slide plate is movably connected to the other end of the connecting rod, the outer surface of the slide plate is movably connected to a bolt, the outer surface of the bolt is threadedly connected to the other end of the connecting rod, limiting grooves are provided on both sides of the inside of the sliding groove, limiting plates are fixedly connected on both sides of the outer surface of the slide plate, and the outer surface of the limiting plate is movably connected to the inside of the limiting groove.

[0007] Preferably, the compensation component includes a embedding groove, which is provided on the outer surface of the slide plate, the interior of the embedding groove is movably connected to the outer surface of the connecting rod, the interior of the embedding groove is movably connected to a support plate, the outer surface of the support plate is movably connected to the outer surface of the spring, the body of the support plate is provided with a through connecting hole, and the interior of the connecting hole is movably connected to the outer surface of the connecting rod.

[0008] Preferably, grooves are provided on both sides of the embedded groove, and sliding tubes are movably connected inside the grooves on both sides, and a rubber sleeve is movably connected inside the sliding tube, and a booster unit is provided outside the rubber sleeve, and a push plate is fixedly connected to the outer surface of the rubber sleeve, and the outer surface of the push plate is movably connected to the inside of the sliding tube, and a sliding rod is fixedly connected to the outer surface of the sliding plate, and the outer surface of the sliding rod is movably connected to the inside of the sliding tube, one end of the sliding rod is movably connected to the body of the sliding tube, and one end of the sliding rod is fixedly connected to the outer surface of the abutment plate.

[0009] Preferably, the boosting unit includes a solid cylinder, one side of the outer surface of the solid cylinder is fixedly connected to the inside of the groove, the other side of the outer surface of the solid cylinder is fixedly connected to the outer surface of the rubber sleeve, the inside of the solid cylinder is fixedly connected to a fixed plate, the outer surface of the fixed plate is provided with a connecting groove, both sides of the connecting groove are provided with cavities, and the inside of the cavity is fixedly connected to a diaphragm.

[0010] Preferably, the connecting groove is movably connected to a rotating plate, the outer surface of the rotating plate is movably connected to the inside of the solid tube, the outer surface of the rotating plate is fixedly connected to a rib, the outer surface of the rib is movably connected to the inside of the connecting groove, the outer surface of the rib is movably connected to the outer surface of the diaphragm, the body of the rotating plate is provided with a through honeycomb groove, the outer surface of the rotating plate is fixedly connected to a rotating rod, the outer surface of the rotating rod is rotatably connected to the inside of the solid tube, and one end of the rotating rod is rotatably connected to the body of the slide plate.

[0011] Preferably, one end of the rotating rod is fixedly connected to a rotating plate, and the outer surface of the rotating plate is provided with anti-slip grooves.

[0012] Preferably, the ball joint body includes a ball head and a sealing sleeve, the sealing sleeve is arranged on the outside of the ball head, a polyformaldehyde ball sleeve is arranged inside the sealing sleeve, the inside of the polyformaldehyde ball sleeve is movably connected to the outer surface of the ball head, connecting ears are fixedly connected on both sides of the outer surface of the ball head, and the outer surface of the connecting ear is movably connected to the inside of the sealing sleeve.

[0013] Preferably, a groove is provided inside the sealing sleeve, a wave spring is provided inside the groove, one end of the wave spring is fixedly connected to the outer surface of the ball head, and the other end of the wave spring is fixedly connected to the inside of the groove.

[0014] Beneficial Effects

[0015] The present invention provides a domestic double-ear ball joint with a new structure. Compared with the prior art, it has the following beneficial effects:

[0016] (1) By setting up a range-extending mechanism, when the vehicle performs a large-angle swing turn, the distance between the two side connecting shafts can be adjusted by sliding the connecting rods and the slide plates in the corresponding slide grooves, so that the transmission distance changes with the swing amplitude, avoiding steering interference and disconnection problems. At the same time, the addition of a spring can play a buffering role, avoiding disorderly swinging of the steering system and facilitating reset after turning.

[0017] (2) By setting up a compensation component, the expansion of the rubber sleeve is used to push the push plate to slide, so that the slide rod follows the movement and pushes the abutment plate to compress the spring. At the same time, at the end of the stroke, the push plate will drive the slide tube to move synchronously, thereby increasing the abutment distance. When the spring is fatigued, the elasticity of the spring is guaranteed by compressing the spring, thereby extending the service life of the spring and avoiding the need for repeated disassembly and replacement of the spring.

[0018] (3) By setting a pressurizing unit, when the spring becomes fatigued, on the corresponding slide plate, the rotating rod is rotated by the rotating plate so that the rotating plate follows the rotation and enters the connecting groove, thereby cutting the diaphragm through the cutting edge of the edge, so that the material loaded in the cavity is pressurized inside the rubber sleeve through physical or chemical effects, so that the rubber sleeve expands and compresses the spring, so that the spring can be used normally.

[0019] (4) By setting up structures such as polyoxymethylene ball sleeves, compared with traditional metal ball joint ball sleeves, it has better mechanical strength and rigidity, as well as improved environmental resistance and resistance to organic solvents, and improved fatigue resistance, temperature resistance, and impact resistance. At the same time, it has good electrical properties, recovery, self-lubrication and wear resistance, while also reducing the overall mass. By setting up grooves and wave springs, the elasticity of the wave spring can compensate for the rebound force of the ball joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the external structure of the present invention;

[0021] Figure 2 The figure is a disassembled diagram of the external structure of the skateboard of the present invention;

[0022] Figure 3 It is a cross-sectional view of the internal structure of the sliding pipe of the present invention;

[0023] Figure 4 This is a disassembled view of the internal structure of the solid tube of the present invention;

[0024] Figure 5 It is the front view of the internal structure of the sealing sleeve of the present invention.

[0025] In the figure: 1, ball joint body; 11, ball head; 12, sealing sleeve; 13, polyoxymethylene ball sleeve; 14, connecting ear; 15, groove; 16, wave spring; 2, range extension mechanism; 21, connecting shaft; 22, slide groove; 23, connecting rod; 24, spring; 25, compensation component; 251, embedded groove; 252, abutment plate; 253, connecting hole; 254, groove; 255, slide tube; 256, rubber sleeve; 257, Booster unit; 2571, fixed cylinder; 2572, fixed plate; 2573, connecting groove; 2574, accommodating cavity; 2575, diaphragm; 2576, rotating plate; 2577, ribs; 2578, honeycomb groove; 2579, rotating rod; 25710, rotating plate; 25711, anti-slip pattern; 258, push plate; 259, sliding rod; 26, sliding plate; 27, bolt; 28, limit groove; 29, limit plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-5 The present invention provides a technical solution: a domestic double-ear ball joint with a new structure:

[0028] Embodiment 1:

[0029] It comprises a ball joint body 1, and a range extending mechanism 2 is arranged outside the ball joint body 1;

[0030] The range-extending mechanism 2 includes two connecting shafts 21, which are made of materials that are resistant to pressure, wear and corrosion. One ends of the two connecting shafts 21 fit each other, and the other end of one of the connecting shafts 21 is fixedly connected to the connecting end of the ball joint body 1 through a coupling. The outer surfaces of the two connecting shafts 21 are provided with slide grooves 22, and the slide grooves 22 on both sides are equidistant and staggered on the two connecting shafts 21. The interior of the slide groove 22 is movably connected with a connecting rod 23, which is made of materials that are resistant to pressure, wear and corrosion, and has a screw groove at one end (Figure 1). The outer surface of the connecting rod 23 is sleeved with a spring 24, which is made of a material that is resistant to pressure, wear, corrosion and fatigue, and a compensation component 25 is arranged outside the spring 24. One end of the connecting rod 23 is movably connected to the body of the connecting shaft 21, and one end of the connecting rod 23 is fixedly connected to the outer surface of the connecting shaft 21 on the other side. The inside of the slide groove 22 is movably connected with a slide plate 26, which is made of a material that is resistant to pressure, wear and corrosion, and the overall curvature is adapted to the curvature of the connecting shaft 21. The slide plate 26 The body of the slide 26 is movably connected with the other end of the connecting rod 23, and the outer surface of the slide 26 is movably connected with a bolt 27. The bolt 27 is convenient for the overall limiting and the disassembly and replacement of the spring 24. It can also be replaced by other detachable fixing structures. The outer surface of the bolt 27 is threadedly connected with the other end of the connecting rod 23. Both sides of the inner side of the slide 22 are provided with limiting grooves 28. Both sides of the outer surface of the slide 26 are fixedly connected with limiting plates 29. The limiting plates 29 are made of compression-resistant, wear-resistant and corrosion-resistant materials, which can further enhance the limiting and compression-resistant effects. The outer surface of the limiting plate 29 is movably connected with the inner side of the limiting groove 28. By setting the range-extending mechanism 2, when the vehicle performs a large-angle swing steering, the distance between the two side connecting shafts 21 can be adjusted by sliding the connecting rods 23 and the slide 26 on both sides in the corresponding slide 22, so that the transmission distance changes with the swing amplitude, avoiding the steering being disturbed and the problem of disconnection. At the same time, the additional spring 24 can play a buffering role, avoiding the disorderly swing of the steering system, and facilitating the reset after steering.

[0031] Embodiment 2:

[0032] The compensation component 25 includes a groove 251, which is provided on the outer surface of the slide plate 26. The interior of the groove 251 is movably connected to the outer surface of the connecting rod 23. The interior of the groove 251 is movably connected to a plate 252. The plate 252 is made of a material that is resistant to pressure, wear and corrosion. The outer surface of the plate 252 is movably connected to the outer surface of the spring 24. The body of the plate 252 is provided with a through hole 253. The outer diameter of the hole 253 matches the outer diameter of the connecting rod 23. The interior of 253 is movably connected to the outer surface of the connecting rod 23, and grooves 254 are provided on both sides of the interior of the embedded groove 251. The interiors of the grooves 254 on both sides are movably connected with slide tubes 255. The slide tubes 255 are made of a material that is resistant to pressure, wear and corrosion. The interior of the slide tube 255 is movably connected with a rubber sleeve 256. The rubber sleeve 256 is made of a material that is resistant to high temperature, pressure, fatigue and has good elongation. A booster unit 257 is provided on the outside of the rubber sleeve 256. The outer surface of the rubber sleeve 256 is fixed. A push plate 258 is connected, and the push plate 258 is made of a material that is resistant to pressure, wear and corrosion. The outer surface of the push plate 258 is movably connected to the inside of the slide tube 255. The outer surface of the slide plate 26 is fixedly connected with a slide rod 259, and the slide rod 259 is made of a material that is resistant to pressure, wear and corrosion. The outer surface of the slide rod 259 is movably connected to the inside of the slide tube 255. One end of the slide rod 259 is movably connected to the body of the slide tube 255, and one end of the slide rod 259 is fixedly connected to the outer surface of the abutment plate 252. By setting a compensation component 25, the expansion of the rubber sleeve 256 is used to push the push plate 258 to slide, so that the slide rod 259 follows the movement and pushes the abutment plate 252 to compress the spring 24. At the same time, at the end of the stroke, the push plate 258 will drive the slide tube 255 to move synchronously, thereby increasing the abutment distance, so that when the spring 24 is fatigued, the elasticity of the spring 24 can be guaranteed by compressing the spring 24, thereby extending the service life of the spring 24 and avoiding the need for repeated disassembly to replace the spring 24.

[0033] Embodiment three:

[0034] The booster unit 257 includes a solid cylinder 2571, which is made of a material that is resistant to pressure, corrosion and has good sealing properties. One side of the outer surface of the solid cylinder 2571 is fixedly connected to the inside of the groove 254, and the other side of the outer surface of the solid cylinder 2571 is fixedly connected to the outer surface of the rubber sleeve 256. A fixed plate 2572 is fixedly connected to the inside of the solid cylinder 2571. The fixed plate 2572 is made of a material that is resistant to pressure, wear and corrosion. A connecting groove 2573 is provided on the outer surface of the fixing plate 2572. Both sides of the connecting groove 2573 are provided with a cavity 2574. The cavity 2574 contains water (chemical properties) or compressed gas (physical properties). In this embodiment, liquid water is used. A diaphragm 2575 is fixedly connected to the interior of the chamber 2574. The diaphragm 2575 is made of a material that is resistant to pressure, wear-resistant, tough and has good sealing properties. A rotating plate 2576 is movably connected to the interior of the connecting groove 2573. The rotating plate 2576 is made of a lime plate with a pressure-resistant frame. The lime and water react to generate gas for pressurization. The pressurization control is performed by equidistant and equiangular staggered arrangement. The outer surface of the rotating plate 2576 is movably connected to the interior of the fixed cylinder 2571. The outer surface of the rotating plate 2576 is fixedly connected to a rib 2577. The outer side of the rib 2577 is provided with a cutting edge to facilitate the cutting of the diaphragm. The outer surface of the rib 2577 is movably connected to the inner part of the connecting groove 2573, the outer surface of the rib 2577 is movably connected to the outer surface of the diaphragm 2575, the body of the rotating plate 2576 is provided with a through honeycomb groove 2578, the honeycomb groove 2578 facilitates the circulation of the transferred material in the chamber 2574, the outer surface of the rotating plate 2576 is fixedly connected with a rotating rod 2579, the outer surface of the rotating rod 2579 is rotatably connected to the inner part of the fixed cylinder 2571, one end of the rotating rod 2579 is rotatably connected to the body of the slide plate 26, the connection between the rotating rod 2579 and the slide plate 26 is provided with a seal and a damping device, one end of the rotating rod 2579 A rotary plate 25710 is fixedly connected, and an anti-slip pattern 25711 is arranged on the outer surface of the rotary plate 25710. By arranging a pressurizing unit 257, when the spring 24 becomes fatigued, on the corresponding slide plate 26, the rotary plate 25710 is used to rotate the rotating rod 2579 so that the rotary plate 2576 follows the rotation and enters the connecting groove 2573, thereby cutting the diaphragm 2575 through the cutting edge of the rib 2577, so that the substance loaded in the cavity 2574 is pressurized inside the rubber sleeve 256 through physical or chemical action, so that the rubber sleeve 256 expands to compress the spring 24, so that the spring 24 can be used normally.

[0035] Embodiment 4:

[0036] The ball joint body 1 includes a ball head 11 and a sealing sleeve 12. The connection end of the ball joint body 1 is arranged on the outside of the sealing sleeve 12. The sealing sleeve 12 is sleeved on the outside of the ball head 11. A polyformaldehyde ball sleeve 13 is arranged inside the sealing sleeve 12. The polyformaldehyde ball sleeve 13 is made of polyformaldehyde material, which reduces the weight of the ball joint body 1 while improving the service life and having more excellent performance. The inside of the polyformaldehyde ball sleeve 13 is movably connected to the outer surface of the ball head 11. Both sides of the outer surface of the ball head 11 are fixedly connected with connecting ears 14. The outer surface of the connecting ear 14 is movably connected to the inside of the sealing sleeve 12. A groove 15 is opened inside the sealing sleeve 12, and a corrugated plate is arranged inside the groove 15. The wave spring 16 plays the role of buffering and damping. One end of the wave spring 16 is fixedly connected to the outer surface of the ball head 11, and the other end of the wave spring 16 is fixedly connected to the inside of the groove 15. By setting the structure of the polyformaldehyde ball sleeve 13 and the like, compared with the traditional metal ball joint ball sleeve, it has better mechanical strength and rigidity, and improves the resistance to the environment and organic solvents, and improves the fatigue resistance, temperature resistance, impact resistance, and has good electrical properties, resilience, self-lubrication and wear resistance, and also reduces the overall quality. By setting the groove 15 and the wave spring 16, the elasticity of the wave spring 16 can compensate for the rebound force of the ball joint.

[0037] Embodiment 5: This embodiment is obtained by combining embodiments 1 to 4. The range extension can facilitate large-angle swinging and steering. At the same time, compression ensures sufficient elastic force, which can increase the service life and avoid the trouble of repeated disassembly and replacement. At the same time, the performance and service life of the device are further improved by replacing the material, so that the device can be used better and for a long time.

[0038] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0039] During operation, one end of the connecting shaft 21 is connected to the connecting end or Y-shaped fork of the ball joint body 1 through a coupling or an existing pull rod device, and then the ball joint body 1 assembly is installed on the vehicle steering system. When the vehicle performs a large-angle swing and steering, the connecting shaft 21 follows the movement and drives the slide plate 26 to slide inside the slide groove 22 through the connecting rod 23, so that the transmission distance is adapted to the swing amplitude of the vehicle by adjusting the distance between the two connecting shafts 21. At the same time, the spring 24 of the slide plate 26 follows the expansion and contraction during the movement, plays a rebound and damping role, and if the spring 24 is fatigued after long-term use, the rotating rod 2579 is rotated on the side corresponding to the slide plate 26 through the anti-slip groove 25711 and the rotating plate 25710, so that the rotating plate 2576 drives the rib 2577 to follow the movement to the inside of the connecting groove 2573, and the diaphragm 2575 is cut open by the cutting edge of the rib 2577, so that the inside of the cavity 2574 Liquid water enters the honeycomb groove 2578, and gas is generated through the reaction of water and lime, which increases the internal pressure of the solid tube 2571 and the rubber sleeve 256, so that the rubber sleeve 256 expands and stretches inside the sliding tube 255, thereby pushing the sliding rod 259 to slide through the push plate 258, and then the sliding rod 259 is pushed out of the embedded groove 251 by the push plate 252, and the fatigued spring 24 is compressed by the push plate 252 to ensure that the elasticity of the spring 24 is sufficient, thereby extending the service life of the entire device and avoiding the need to repeatedly disassemble and replace the spring 24. By continuous rotation, the misplaced rotating plates 2576 enter the connecting groove 2573 in turn, so that the boost compensation amount can be controlled, and when the spring 24 is finally damaged, the spring 24 can be quickly disassembled and replaced by unscrewing the bolts 27 and disconnecting the slide plate 26 and the connecting rod 23, thereby improving the replacement efficiency and simplifying the replacement process.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A domestically produced double-ear ball joint of a novel structure, comprising a ball joint body (1), characterized in that: A range-extending mechanism (2) is arranged outside the ball joint body (1); The range-extending mechanism (2) comprises two connecting shafts (21), one end of the two connecting shafts (21) being fitted to each other, the other end of one of the connecting shafts (21) being fixedly connected to the connecting end of the ball joint body (1) via a coupling, the outer surfaces of the two connecting shafts (21) are provided with slide grooves (22), the slide grooves (22) on both sides are equidistant and staggered on the two connecting shafts (21), the interior of the slide grooves (22) is movably connected to a connecting rod (23), the outer surface of the connecting rod (23) is sleeved with a spring (24), the outside of the spring (24) is provided with a compensation component (25), one end of the connecting rod (23) is movably connected to the body of the connecting shaft (21), and the connecting rod (23) is movably connected to the body of the connecting shaft (21). The slide groove (22) is movably connected to the outer surface of the connecting shaft (21) on the other side, one end of the connecting rod (23) is fixedly connected to the outer surface of the connecting shaft (21) on the other side, the slide groove (22) is movably connected to a slide plate (26), the body of the slide plate (26) is movably connected to the other end of the connecting rod (23), the outer surface of the slide plate (26) is movably connected to a bolt (27), the outer surface of the bolt (27) is threadedly connected to the other end of the connecting rod (23), both sides of the slide groove (22) are provided with limit grooves (28), both sides of the outer surface of the slide plate (26) are fixedly connected to limit plates (29), and the outer surface of the limit plate (29) is movably connected to the inside of the limit groove (28); The compensation component (25) comprises a groove (251), the groove (251) being formed on the outer surface of the slide plate (26), the interior of the groove (251) being movably connected to the outer surface of the connecting rod (23), the interior of the groove (251) being movably connected to a support plate (252), the outer surface of the support plate (252) being movably connected to the outer surface of the spring (24), the body of the support plate (252) being provided with a through connecting hole (253), the interior of the connecting hole (253) being movably connected to the outer surface of the connecting rod (23), the interior of the groove (251) being provided with grooves (254) on both sides, the interiors of the grooves (254) on both sides being movably connected to A sliding tube (255), wherein the interior of the sliding tube (255) is movably connected to a rubber sleeve (256), a booster unit (257) is arranged outside the rubber sleeve (256), a push plate (258) is fixedly connected to the outer surface of the rubber sleeve (256), the outer surface of the push plate (258) is movably connected to the interior of the sliding tube (255), the outer surface of the slide plate (26) is fixedly connected to a sliding rod (259), the outer surface of the sliding rod (259) is movably connected to the interior of the sliding tube (255), one end of the sliding rod (259) is movably connected to the body of the sliding tube (255), and one end of the sliding rod (259) is fixedly connected to the outer surface of the abutment plate (252); The booster unit (257) comprises a fixed cylinder (2571), one side of the outer surface of the fixed cylinder (2571) is fixedly connected to the inside of the groove (254), the other side of the outer surface of the fixed cylinder (2571) is fixedly connected to the outer surface of the rubber sleeve (256), a fixed plate (2572) is fixedly connected to the inside of the fixed cylinder (2571), a connecting groove (2573) is provided on the outer surface of the fixing plate (2572), and cavities (2574) are provided on both sides of the inside of the connecting groove (2573). ), the interior of the cavity (2574) is fixedly connected to a diaphragm (2575), the interior of the connecting groove (2573) is movably connected to a rotating plate (2576), the outer surface of the rotating plate (2576) is movably connected to the interior of the fixed tube (2571), the outer surface of the rotating plate (2576) is fixedly connected to a rib (2577), the outer surface of the rib (2577) is movably connected to the interior of the connecting groove (2573), the outer surface of the rib (2577) is movably connected to the diaphragm (257 5), the outer surface of the rotating plate (2576) is movably connected, the body of the rotating plate (2576) is provided with a through honeycomb groove (2578), the outer surface of the rotating plate (2576) is fixedly connected with a rotating rod (2579), the outer surface of the rotating rod (2579) is rotatably connected to the inside of the fixed cylinder (2571), one end of the rotating rod (2579) is rotatably connected to the body of the slide plate (26), one end of the rotating rod (2579) is fixedly connected with a rotating plate (25710), the rotating plate (25710) ) is provided with anti-slip grooves (25711) on the outer surface. When the spring (24) becomes fatigued, the rotating rod (2579) is rotated on the corresponding slide plate (26) by the rotary plate (25710), so that the rotating plate (2576) follows the rotation and enters the connecting groove (2573), thereby cutting the diaphragm (2575) through the cutting edge of the rib (2577), so that the substance loaded in the cavity (2574) is pressurized inside the rubber sleeve (256) through physical or chemical effects.

2. According to the novel structure of the domestic double-ear ball joint of claim 1, it is characterized by: The ball joint body (1) comprises a ball head (11) and a sealing sleeve (12); the sealing sleeve (12) is sleeved on the outside of the ball head (11); a polyformaldehyde ball sleeve (13) is arranged inside the sealing sleeve (12); the inside of the polyformaldehyde ball sleeve (13) is movably connected to the outer surface of the ball head (11); connecting ears (14) are fixedly connected to both sides of the outer surface of the ball head (11); the outer surface of the connecting ears (14) is movably connected to the inside of the sealing sleeve (12).

3. According to the novel structure of the domestic double-ear ball joint of claim 2, it is characterized by: A groove (15) is provided inside the sealing sleeve (12), a wave spring (16) is provided inside the groove (15), one end of the wave spring (16) is fixedly connected to the outer surface of the ball head (11), and the other end of the wave spring (16) is fixedly connected to the inside of the groove (15).

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