Reinforced ball head suspension swing arm assembly

Abstract

The utility model relates to the technical field of automobile parts, and provides a reinforced ball head suspension swing arm assembly which comprises a suspension swing arm assembly body and a bolt arranged on the suspension swing arm assembly body, a fastening mechanism is arranged on the outer side wall of the bolt, and the fastening mechanism comprises a first nut, a groove, a movable rod, a movable plate, a spring and a second nut. During connection, the movable plate moves in the direction of the movable rod and forms an annular shape with the inner wall of the first nut, the spring is in a compressed state at the moment, the movable plate can clamp the bolt under the counter-acting force of the locking spring, then the first nut and the bolt are connected more tightly, meanwhile, the second nut is screwed on the bolt, and therefore the bolt can be connected more tightly. The first nut and the second nut are arranged, the protruding portion of the first nut is inserted into the concave portion of the second nut and tightly pressed and fixed, meanwhile, the first nut and the second nut restrict each other, relative rotation between the anti-loosening first nut and the bolt is prevented, and therefore the purpose of fastening when the suspension swing arm assembly body is connected is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a reinforced ball head suspension swing arm assembly. Background Art

[0002] The suspension arm assembly is a key component in the vehicle's suspension system. It connects the wheels to the vehicle chassis and is responsible for transmitting various forces and torques acting on the wheels, while ensuring that the wheels have a certain degree of freedom of movement relative to the vehicle body, thereby achieving stable driving, control and comfort of the vehicle.

[0003] Known Chinese public authorized patent: (application number: CN202020848286.X) discloses a front suspension lower arm assembly, including a lower arm body, on which a front bushing assembly, a kingpin assembly and a rear bushing assembly are respectively fixed, the kingpin assembly includes a kingpin housing, a ball pin, a retaining ring and a dust cover, the kingpin housing is provided with a mounting groove, in which a cover plate, a small ball seat and a large ball seat are installed from bottom to top, the ball pin includes a ball head end and a threaded end, the ball head end is installed in a rotating groove formed by the large ball seat and the small ball seat, the kingpin housing is provided with a retaining groove, and the retaining ring retains the lower end of the dust cover in the retaining groove, the retaining ring includes a ring body, a notch is provided on the ring body, a first connecting plate is fixed on the first end of the ring body, and a connecting bolt is connected to the second end, and the connecting bolt passes through one end of the first connecting plate and is threadedly connected to a locking nut. In the utility model, the size of the gap of the ring body is adjusted by connecting the bolts and the locking nut, so that the ring body can be controlled to clamp or loosen the dust cover, which makes it convenient to disassemble and assemble the dust cover.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned front suspension lower arm assembly has the following problems: the existing suspension arm assembly is usually connected and fixed by bolts and nuts, but the nuts are prone to loosening after long-term use in this direction of installation, which can easily cause serious accidents or even endanger life. Therefore, a reinforced ball head suspension arm assembly is proposed. Utility Model Content

[0005] The utility model proposes a reinforced ball head suspension swing arm assembly, which solves the problem in the related art that the existing suspension swing arm assembly is usually connected and fixed by bolts and nuts, but the nuts are prone to loosening after long-term use in this direction of installation, which can easily cause serious accidents or even endanger lives.

[0006] The technical solution of the utility model is as follows: a reinforced ball head suspension swing arm assembly comprises: a suspension swing arm assembly body;

[0007] A bolt is provided on the suspension arm assembly body, and a fastening mechanism is provided on the outer side wall of the bolt, and the fastening mechanism includes a first nut, a groove, a movable rod, a movable plate, a spring and a second nut;

[0008] The first nut is threadedly connected to the bolt, the groove is provided on the inner wall of the first nut, the outer wall of the movable rod is slidably connected to the inner wall of the groove by providing a sliding hole, one side of the movable plate is connected to one end of the movable rod, and the other side of the movable plate corresponds to the thread of the inner wall of the first nut through the internal thread provided, the spring is sleeved on the outer wall of the movable rod, one end of the spring is connected between the groove, and the other end of the spring is connected to the movable plate;

[0009] The second nut is threadedly connected to the bolt, the second nut is located above the first nut, the periphery of the first nut extends upward to form a convex portion, and the second nut is provided with a concave portion, the shape of the concave portion being adapted to the shape of the convex portion;

[0010] The outer side wall of the suspension swing arm assembly is provided with a protection mechanism.

[0011] Preferably, the protective mechanism includes a zinc coating coated on the outer side wall of the suspension arm assembly body, and the outer side wall of the zinc coating away from the suspension arm assembly body is coated with a Dacromet coating.

[0012] Preferably, the outer side wall of the Dacromet coating away from the suspension arm assembly body is coated with hard oxidation, and the outer side wall of the hard oxidation away from the suspension arm assembly body is coated with epoxy resin coating.

[0013] Preferably, the outer side wall of the suspension swing arm assembly is provided with a protective shell, and the protective shell is connected to the suspension swing arm assembly body by screws.

[0014] Preferably, the outer side wall of the protective shell is provided with a protective pad, and the material of the protective pad is natural rubber.

[0015] The working principle and beneficial effects of the utility model are as follows:

[0016] When the suspension swing arm assembly is connected, the movable plate moves toward the movable rod and forms a ring with the inner wall of the first nut. At this time, the spring is in a compressed state. Under the reaction force of the locking spring, the movable plate can clamp the bolt, thereby making the connection between the first nut and the bolt tighter. At the same time, by screwing the second nut onto the bolt, the protrusion of the first nut is inserted into the recessed part of the second nut and pressed tightly. At the same time, the first nut and the second nut restrain each other to prevent relative rotation between the anti-loosening first nut and the bolt, thereby achieving the purpose of tightening the suspension swing arm assembly during connection, installation and fixation, and effectively preventing the connection part from loosening, causing serious accidents or even life-threatening problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the partial three-dimensional structure of the bolt proposed in the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the bolt proposed in the utility model;

[0021] Figure 4 This is a schematic diagram of a sectional three-dimensional structure of the first nut proposed in the present invention;

[0022] Figure 5 This is a schematic diagram of the overall plan proposed by the utility model;

[0023] Figure 6 This is a schematic diagram of the partial three-dimensional structure of the protective shell proposed by the utility model.

[0024] In the figure: 1. Suspension arm assembly; 2. Bolt; 3. Fastening mechanism; 31. First nut; 32. Groove; 33. Movable rod; 34. Movable plate; 35. Spring; 36. Second nut; 4. Protective mechanism; 40. Zinc plating; 41. Dacromet coating; 42. Hard anodizing; 43. Epoxy resin coating; 5. Protective shell; 6. Protective pad. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention. Example 1

[0026] See also Figures 1 to 6 , the reinforced ball head suspension arm assembly includes: a suspension arm assembly body 1;

[0027] A bolt 2 is provided on the suspension arm assembly body 1. A fastening mechanism 3 is provided on the outer side wall of the bolt 2. The fastening mechanism 3 includes a first nut 31, a groove 32, a movable rod 33, a movable plate 34, a spring 35 and a second nut 36.

[0028] The first nut 31 is threadedly connected to the bolt 2, and a groove 32 is provided on the inner wall of the first nut 31. The outer wall of the movable rod 33 is slidably connected to the inner wall of the groove 32 through a sliding hole. One side of the movable plate 34 is connected to one end of the movable rod 33, and the other side of the movable plate 34 corresponds to the thread of the inner wall of the first nut 31 through an internal thread. The spring 35 is sleeved on the outer wall of the movable rod 33, and one end of the spring 35 is connected to the groove 32, and the other end of the spring 35 is connected to the movable plate 34.

[0029] The second nut 36 is threadedly connected to the bolt 2. The second nut 36 is located above the first nut 31. The periphery of the first nut 31 extends upward to form a protrusion. A recess is provided in the second nut 36. The shape of the recess matches the shape of the protrusion.

[0030] The technical solution provided by the present invention is that when the suspension swing arm assembly body 1 is connected, the movable plate 34 moves in the direction of the movable rod 33 and forms a ring with the inner wall of the first nut 31. At this time, the spring 35 is in a compressed state. Under the reaction force of the locking spring 35, the movable plate 34 can clamp the bolt 2, thereby making the connection between the first nut 31 and the bolt 2 tighter. At the same time, by screwing the second nut 36 onto the bolt 2, the protrusion of the first nut 31 is inserted into the recessed part of the second nut 36 and pressed and tightened. At the same time, the first nut 31 and the second nut 36 restrain each other to prevent the relative rotation between the anti-loosening first nut 31 and the bolt 2, thereby achieving the purpose of tightening the suspension swing arm assembly body 1 when connected, installed and fixed, and effectively preventing the connection part from loosening, causing serious accidents or even life-threatening problems.

[0031] Furthermore, a protective shell 5 is provided on the outer wall of the suspension arm assembly body 1, and the protective shell 5 is connected to the suspension arm assembly body 1 by screws. A protective pad 6 is provided on the outer wall of the protective shell 5, and the material of the protective pad 6 is natural rubber.

[0032] Specifically, the protective shell 5 is used to protect the suspension arm assembly 1 to prevent damage to the suspension arm assembly 1 due to external factors, and the protective pad 6 is used to buffer the impact force. Example 2

[0033] Based on Example 1, in this embodiment: the outer side wall of the suspension arm assembly body 1 is provided with a protective mechanism 4, the protective mechanism 4 includes a zinc coating 40 coated on the outer side wall of the suspension arm assembly body 1, the outer side wall of the zinc coating 40 away from the suspension arm assembly body 1 is coated with a Dacromet coating 41, the outer side wall of the Dacromet coating 41 away from the suspension arm assembly body 1 is coated with a hard oxidation 42, and the outer side wall of the hard oxidation 42 away from the suspension arm assembly body 1 is coated with an epoxy resin coating 43.

[0034] The technical solution provided by this embodiment is: through the anti-corrosion protection of the zinc plating layer 40, a dense zinc layer is formed on the surface of the suspension arm assembly body 1 through the electroplating process. Even if the surface is scratched, the zinc can continue to protect the underlying metal. The Dacromet coating 41 has better corrosion resistance and high temperature resistance, which is used to protect the suspension arm assembly body 1. A hard oxide film is formed through hard oxidation 42 to improve the surface hardness and wear resistance of the suspension arm assembly body 1. The epoxy resin coating 43 has high impact resistance and wear resistance, and has good elasticity, which can effectively resist physical damage to the suspension arm assembly body 1 such as stone impact.

[0035] The working principle of the present invention is as follows: when the suspension swing arm assembly body 1 is connected, the movable plate 34 moves in the direction of the movable rod 33 and forms a ring with the inner wall of the first nut 31. At this time, the spring 35 is in a compressed state. Under the reaction force of the locking spring 35, the movable plate 34 can clamp the bolt 2, thereby making the connection between the first nut 31 and the bolt 2 tighter. At the same time, by screwing the second nut 36 onto the bolt 2, the protrusion of the first nut 31 is inserted into the recessed part of the second nut 36 and pressed and tightened. At the same time, the first nut 31 and the second nut 36 restrain each other to prevent the relative rotation between the anti-loosening first nut 31 and the bolt 2, thereby achieving the purpose of tightening the suspension swing arm assembly body 1 when connected, installed and fixed, and effectively preventing the connection part from loosening, causing serious accidents or even life-threatening problems.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The reinforced ball head suspension arm assembly is characterized by: include: Suspension arm assembly body (1); A bolt (2) is provided on the suspension arm assembly body (1), and a fastening mechanism (3) is provided on the outer side wall of the bolt (2). The fastening mechanism (3) includes a first nut (31), a groove (32), a movable rod (33), a movable plate (34), a spring (35) and a second nut (36); The first nut (31) is threadedly connected to the bolt (2), the groove (32) is provided on the inner wall of the first nut (31), the outer wall of the movable rod (33) is slidably connected to the inner wall of the groove (32) by providing a sliding hole, one side of the movable plate (34) is connected to one end of the movable rod (33), and the other side of the movable plate (34) corresponds to the thread of the inner wall of the first nut (31) through the internal thread provided, the spring (35) is sleeved on the outer wall of the movable rod (33), one end of the spring (35) is connected to the groove (32), and the other end of the spring (35) is connected to the movable plate (34); The second nut (36) is threadedly connected to the bolt (2), the second nut (36) is located above the first nut (31), the periphery of the first nut (31) extends upward to form a convex portion, and a concave portion is provided in the second nut (36), the shape of the concave portion being adapted to the shape of the convex portion; The outer side wall of the suspension swing arm assembly body (1) is provided with a protection mechanism (4).

2. The reinforced ball head suspension swing arm assembly according to claim 1, characterized in that: The protective mechanism (4) comprises a zinc coating (40) coated on the outer side wall of the suspension arm assembly (1), and the outer side wall of the zinc coating (40) away from the suspension arm assembly (1) is coated with a Dacromet coating (41).

3. The reinforced ball head suspension swing arm assembly according to claim 2, characterized in that: The outer side wall of the Dacromet coating (41) away from the suspension arm assembly body (1) is coated with a hard oxidation (42), and the outer side wall of the hard oxidation (42) away from the suspension arm assembly body (1) is coated with an epoxy resin coating (43).

4. The reinforced ball head suspension swing arm assembly according to claim 2, characterized in that: The outer side wall of the suspension arm assembly body (1) is provided with a protective shell (5), and the protective shell (5) is connected to the suspension arm assembly body (1) via screws.

5. The reinforced ball head suspension swing arm assembly according to claim 2, characterized in that: The outer side wall of the protective shell (5) is provided with a protective pad (6), and the material of the protective pad (6) is natural rubber.

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