Automobile control arm

Abstract

The utility model provides an automobile control arm, and belongs to the technical field of automobile accessories. The problem that an existing automobile control arm is not convenient to inject oil is solved. The automobile control arm comprises an arm body, a first connecting pipe is welded to the left end of the arm body, a second connecting pipe is welded to the rear end of the arm body, a ball head is connected to the right side of the arm body through a bolt, the bottom of the ball head communicates with an oil injection pipe, a rotating rod is riveted to the right side of the bottom of the arm body, the surface of the rotating rod is movably sleeved with a supporting plate, and a cavity is formed in the front side of the supporting plate. An oil injection mechanism is riveted to the inner wall of the cavity and comprises a fixing plate, the front side of the fixing plate is in threaded connection with a lead screw in a penetrating mode, an inner cavity of the cavity is movably connected with a piston, the rear side of the right side of the supporting plate is fixedly connected with an oil supply pipe in a penetrating mode, a protective shell is riveted to the right side of the supporting plate, and the right end of the oil supply pipe penetrates into an inner cavity of the protective shell and communicates with a telescopic pipe. The oil injection device has the advantages of convenience in oil injection, long service life and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts, and relates to an automobile chassis part, in particular to an automobile control arm. BACKGROUND

[0002] The automobile control arm is also called a swing arm, and is an important component of an automobile suspension system, the control arm is connected to a wheel and a vehicle body through a ball joint, provides support for the wheel, maintains the correct position of the wheel, and ensures the stability and maneuverability of the vehicle during driving.

[0003] For example, the Chinese patent document discloses an automobile control arm [application number: 202121685215.3; authorized publication number: CN215360814U], which comprises a cantilever welding assembly, a bushing assembly one is installed on the bottom surface of the cantilever welding assembly near one end, a bushing assembly two is installed on one side of the cantilever welding assembly near the bottom end, a suspension seat is installed on the top end of the cantilever welding assembly, a damping mechanism is installed on the front surface of the cantilever welding assembly near the top end, the bushing assembly two comprises a rotating shaft connected with the cantilever welding assembly, a linkage shaft is installed on the inner circumference of the rotating shaft, a plurality of linkage balls are installed between the rotating shaft and the linkage shaft, a connecting sleeve shaft is installed on the inner circumference of the linkage shaft, and a plurality of rolling balls are installed between the linkage shaft and the connecting sleeve shaft.

[0004] The automobile control arm makes the linkage friction force between the wheel and the control arm lower, so that the wheel is more stable during operation, but the oiling operation of the ball head is extremely inconvenient, the user cannot quickly oil the inside of the ball head, and once the ball head needs to be oiled and maintained, manual disassembly is required, which not only consumes a lot of time, but also reduces the maintenance efficiency, and lacks effective protection measures, the bottom of the ball head is completely exposed, and mud and stones are easily splashed to the surface of the ball head during vehicle driving, the impact of external force and the attachment of corrosive substances can accelerate the wear and damage of the ball head, and thus affect the service life of the ball head. SUMMARY

[0005] The utility model discloses a kind of automobile control arms for the above problems existing in prior art, which are convenient to oil the inside of ball head, and can protect the bottom of ball head, avoid the impact of external force and the attachment of corrosive substances.

[0006] The utility model discloses a purpose can be realized through the following technical scheme: a kind of automobile control arm, including arm body, the left end of the arm body is welded with first connecting pipe, the rear end of the arm body is welded with second connecting pipe, the right side of the arm body is connected with ball head by bolt, the bottom of the ball head is communicated with oil injection pipe, the right side of the arm body bottom is riveted with rotating rod, the surface of the rotating rod is movably sleeved with support plate, the front side of the support plate is provided with cavity, the inner wall of the cavity is riveted with oil injection mechanism, the oil injection mechanism includes fixed plate, the front side of the fixed plate is penetrated and is connected with screw rod, the inner cavity of the cavity is movably connected with piston, the rear side of the right side of the support plate is penetrated and is fixedly connected with oil supply pipe, the right side of the support plate is riveted with protective shell, the right end of the oil supply pipe is penetrated to the inner cavity of protective shell and is communicated with telescopic pipe.

[0007] The automobile control arm is mainly provided with an oil injection pipe, a rotating rod, a support plate, a cavity, an oil injection mechanism, a fixed plate, a screw rod, a piston, an oil supply pipe and a protective shell at the bottom of the control arm, so that the ball head can be conveniently injected with oil through the oil injection pipe, the rotating rod, the support plate, the cavity, the oil injection mechanism, the fixed plate, the screw rod, the piston, the oil supply pipe and the protective shell, the oil injection operation can be completed by rotating a knob, the oil injection efficiency is high, the bottom of the ball head can be protected, the ball head is prevented from being impacted by mud and stones, and the service life of the ball head is greatly prolonged.

[0008] In the automobile control arm, the rear end of the screw rod is movably connected with the piston through a bearing, and the front end of the screw rod is riveted with a knob.

[0009] In the automobile control arm, the inner cavity of the first connecting pipe is provided with a first bushing, and the inner cavity of the second connecting pipe is provided with a second bushing.

[0010] In the automobile control arm, the left end of the oil supply pipe is communicated with the cavity, and the top end of the telescopic pipe is communicated with the oil injection pipe.

[0011] In the automobile control arm, the right side of the arm body bottom is provided with a positioning hole, the left side of the support plate bottom is threadedly connected with a positioning bolt, and the top end of the positioning bolt extends into the positioning hole.

[0012] The rear side of the top of the support plate is fixedly connected with a refueling pipe, the bottom end of the refueling pipe is communicated with the cavity, and the surface of the refueling pipe is threadedly provided with a pipe cap.

[0013] The bottom of the protective shell is riveted with a rubber pad, and the front side of the two sides of the inner cavity of the cavity is riveted with a baffle.

[0014] Compared with the prior art, the automobile control arm has the advantages that the ball head can be conveniently filled with oil without being disassembled, the oil filling efficiency is high, the automobile control arm has a protection function, can block the splashing of mud, stones and other impurities during the driving of the vehicle, and can avoid the splashing onto the surface of the ball head, thereby effectively prolonging the service life of the ball head. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a perspective view of the automobile control arm.

[0016] Figure 2 is a perspective view of the automobile control arm.

[0017] Figure 3 is a perspective view of the arm body structure of the automobile control arm.

[0018] Figure 4 is a perspective view of the automobile control arm.

[0019] Figure 5 is a perspective view of the support plate structure of the automobile control arm.

[0020] In the figure, 1 is an arm body; 2 is a first connecting pipe; 3 is a second connecting pipe; 4 is a ball head; 5 is an oil injection pipe; 6 is a rotating rod; 7 is a support plate; 8 is a cavity; 9 is an oil injection mechanism; 10 is a fixed plate; 11 is a screw rod; 12 is a piston; 13 is an oil supply pipe; 14 is a protective shell; 15 is an extension pipe; 16 is a knob; 17 is a positioning hole; 18 is a positioning bolt; 19 is a refueling pipe; 20 is a rubber pad; and 21 is a baffle. DETAILED DESCRIPTION

[0021] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0022] As Figure 1 , Figure 2 , Figure 3 , Figure 4 andFigure 5 As shown, the automobile control arm comprises an arm body 1, a first connecting pipe 2 welded at the left end of the arm body 1, a second connecting pipe 3 welded at the rear end of the arm body 1, a ball head 4 bolted at the right side of the arm body 1, an oil injection pipe 5 communicated at the bottom of the ball head 4, a rotating rod 6 riveted at the right side of the bottom of the arm body 1, a support plate 7 movably sleeved on the surface of the rotating rod 6, a cavity 8 formed at the front side of the support plate 7, an oil injection mechanism 9 riveted on the inner wall of the cavity 8, the oil injection mechanism 9 comprising a fixed plate 10, a screw rod 11 threadedly penetrating through the front side of the fixed plate 10, a piston 12 movably connected in the cavity 8, an oil supply pipe 13 fixedly penetrating through the rear side of the right side of the support plate 7, a protective shell 14 riveted at the right side of the support plate 7, and a telescopic pipe 15 penetrating through the inner cavity of the protective shell 14 at the right end of the oil supply pipe 13.

[0023] Further, the rear end of the screw rod 11 is movably connected with the piston 12 through a bearing, and the front end of the screw rod 11 is riveted with a knob 16. The inner cavity of the first connecting pipe 2 is provided with a first bushing, and the inner cavity of the second connecting pipe 3 is provided with a second bushing.

[0024] The left end of the oil supply pipe 13 is communicated with the cavity 8, and the top end of the telescopic pipe 15 is communicated with the oil injection pipe 5. The right side of the bottom of the arm body 1 is provided with a positioning hole 17, and the left side of the bottom of the support plate 7 is threadedly penetrated with a positioning bolt 18, the top end of which extends into the inside of the positioning hole 17.

[0025] The rear side of the top of the support plate 7 is fixedly penetrated with a refueling pipe 19, the bottom end of which is communicated with the cavity 8, and the surface of the refueling pipe 19 is threadedly sleeved with a pipe cap. The bottom of the protective shell 14 is riveted with a rubber pad 20, and the front side of each of the two sides of the inner cavity of the cavity 8 is riveted with a baffle 21.

[0026] In use, the protective shell 14 is located at the bottom of the ball head 4, and during the daily driving of the vehicle, the splashing stones and mud are blocked by the protective shell 14, so that impurities cannot adhere to and impact on the bottom of the ball head 4, thereby prolonging the service life of the ball head 4. When it is necessary to inject oil into the ball head 4, the knob 16 is rotated, the knob 16 drives the screw rod 11 to rotate, the screw rod 11 drives the piston 12 to move to the rear side, the piston 12 extrudes the lubricating oil in the cavity 8, the lubricating oil is transported to the oil injection pipe 5 under the action of the oil supply pipe 13 and the telescopic pipe 15, and the lubricating oil is transported to the inside of the ball head 4 through the oil injection pipe 5, thereby completing the oil injection operation.

[0027] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art. The specific embodiments described in the specification are only illustrative of the spirit of the utility model. The person skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. A control arm for a vehicle comprising an arm body (1), characterised in that, The left end of the arm body (1) is welded with a first connecting pipe (2), the rear end of the arm body (1) is welded with a second connecting pipe (3), the right side of the arm body (1) is bolted with a ball head (4), the bottom of the ball head (4) is communicated with an oil injection pipe (5), the right side of the bottom of the arm body (1) is riveted with a rotating rod (6), the surface of the rotating rod (6) is movably sleeved with a supporting plate (7), the front side of the supporting plate (7) is provided with a cavity (8), the inner wall of the cavity (8) is riveted with an oil injection mechanism (9), the oil injection mechanism (9) comprises a fixed plate (10), the front side of the fixed plate (10) is penetrated and threadedly connected with a lead screw (11), the inner cavity of the cavity (8) is movably connected with a piston (12), the rear side of the right side of the supporting plate (7) is penetrated and fixedly connected with an oil supply pipe (13), the right side of the supporting plate (7) is riveted with a protective shell (14), the right end of the oil supply pipe (13) penetrates into the inner cavity of the protective shell (14) and is communicated with an expansion pipe (15).

2. The control arm of claim 1, wherein, The rear end of the lead screw (11) is movably connected with the piston (12) through a bearing, and the front end of the lead screw (11) is riveted with a knob (16).

3. The control arm of claim 1, wherein: The inner cavity of the first connecting pipe (2) is provided with a first bushing, and the inner cavity of the second connecting pipe (3) is placed with a second bushing.

4. The control arm of claim 1 wherein, The left end of the oil supply pipe (13) is communicated with the cavity (8), and the top end of the expansion pipe (15) is communicated with the oil injection pipe (5).

5. The control arm of claim 1 wherein, The right side of the bottom of the arm body (1) is provided with a positioning hole (17), and the left side of the bottom of the supporting plate (7) is penetrated and threadedly connected with a positioning bolt (18), and the top end of the positioning bolt (18) extends into the inside of the positioning hole (17).

6. The control arm of claim 1 wherein, The rear side of the top of the supporting plate (7) is penetrated and fixedly connected with a refueling pipe (19), the bottom end of the refueling pipe (19) is communicated with the cavity (8), and the surface of the refueling pipe (19) is threadedly sleeved with a pipe cap.

7. The control arm of claim 1 wherein, The bottom of the protective shell (14) is riveted with a rubber pad (20), and the front sides of the two sides of the inner cavity of the cavity (8) are riveted with a baffle (21).

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