High-stability ball head type swing arm

Abstract

The utility model belongs to the field of swing arms, and particularly relates to a high-stability ball head type swing arm which comprises a swing arm frame, an assembly groove is formed in the swing arm frame, a pair of screw holes communicated with the assembly groove are formed in the top of the swing arm frame, and a supporting plate is arranged in the assembly groove in a sliding fit mode. A ball head body is arranged at the end, located outside the assembling groove, of the supporting plate, two rows of preformed holes are formed in the top of the supporting plate, the number of the preformed holes in each row is four, and a positioning frame is fixedly connected to the top of the swing arm frame; through the assembling groove, the supporting plate, the preformed hole and the positioning bolt, it is guaranteed that the position of the ball head body can be adjusted, meanwhile, complex transmission parts in the prior art are reduced, the manufacturing cost and material consumption are effectively reduced, through the structural design of the positioning frame and the limiting block, the positioning bolt can be protected, and the service life of the ball head is prolonged. Rust and abrasion of the positioning bolt are reduced, the service life of the positioning bolt is prolonged, and the stability of the positioning bolt after installation is also ensured.

Description

Technical Field

[0001] The utility model relates to the field of swing arms, in particular to a high-stability ball head type swing arm. Background Technique

[0002] The lower swing arm of an automobile is mainly used to support the vehicle body and shock absorbers, and buffer the vibration during driving; the ingenious combination of the lower swing arm with the shock absorber and spring forms a complete suspension system; the lower swing arm is provided with a bushing and a ball head, and the ball head of the automobile lower swing arm cooperates with the lower swing arm to play a role in stabilizing the vehicle body and assisting in steering. The Chinese authorized utility model patent (publication number: CN218858086U) discloses a ball head adjustable lower swing arm, which can adjust the position of the ball head body according to different vehicle models, improving the applicability of the lower swing arm.

[0003] However, there are still some deficiencies in the above device during use: specifically, in the prior art, due to the use of high-precision transmission components such as gear racks, the machining accuracy and assembly accuracy of each component need to reach a relatively high level, increasing the manufacturing difficulty and raising the production cost. Moreover, in the existing design, key transmission components such as the gear rack are often exposed and not provided with sufficient protection measures. In harsh usage environments, such as in the presence of humidity, dust, or corrosive media, the gear rack is extremely vulnerable to erosion, such as rusting and wear. This not only affects the transmission efficiency but may also lead to the failure of the entire adjustment mechanism, reducing the reliability and service life of the swing arm. In summary, in the prior art, the adjustment method for the ball head body has the problems of high production cost and being easily interfered by the environment, affecting the service life of the adjustment mechanism. Therefore, in view of the above situation, a high-stability ball head type swing arm is proposed. Content of the Utility Model

[0004] In order to make up for the problems of high production cost in the prior art and being easily interfered by the environment, affecting the service life of the adjustment mechanism, the utility model proposes a high-stability ball head type swing arm.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a high-stability ball head type swing arm, including a swing arm frame, an assembly groove is opened on the swing arm frame, a pair of screw holes communicating with the assembly groove are opened at the top of the swing arm frame, a support plate is slidably fitted in the assembly groove, a ball head body is arranged at one end of the support plate outside the assembly groove, and two rows of reserved holes are opened at the top of the support plate, and the number of each row of reserved holes is four.

[0006] A positioning frame is fixedly connected to the top of the swing arm frame, a rectangular groove is penetrated and opened at the top of the positioning frame, and positioning grooves are opened on both sides of the inner wall of the rectangular groove.

[0007] A positioning bolt is threadedly engaged in each of the pair of screw holes. The bottom ends of the pair of positioning bolts pass through the screw holes and are engaged with the reserved holes. Four slots are penetrated through the head of the positioning bolt.

[0008] A limiting block is arranged in the rectangular groove. A limiting component is arranged on the limiting block. The number of the limiting components is two. The limiting components are arranged at both ends of the limiting block. Two groups of inserting blocks are arranged at the bottom of the limiting block. The number of each group of inserting blocks is four. The four inserting blocks are respectively engaged with the four slots on the positioning bolt.

[0009] The limiting component includes an inner cavity opened on the limiting block. One side of the inner wall of the inner cavity is fixedly connected with a pair of springs. A T-shaped block is slidably engaged in the inner cavity. One ends of the pair of springs are connected with the T-shaped block. One end of the T-shaped block passes through the inner cavity and is engaged with a positioning groove. A shifting rod is arranged on the T-shaped block. The shifting rod passes through the inner cavity.

[0010] Preferably, a front bushing and a rear bushing are respectively arranged on the swing arm frame.

[0011] Preferably, supporting blocks are fixedly connected to both side surfaces of the inner wall of the rectangular groove. The bottom of the limiting block is lapped on the supporting blocks.

[0012] Preferably, a cover plate covering the inner cavity is arranged on the top of the limiting block. An activity groove is formed on the cover plate. The activity groove is communicated with the inner cavity. The activity groove is engaged with the shifting rod.

[0013] Preferably, a hollow groove is penetrated through one side surface of the inner wall of the inner cavity. The T-shaped block extends outside the inner cavity through the hollow groove.

[0014] Preferably, the shape of the shifting rod is an inverted "L" shape.

[0015] Preferably, a sliding groove is opened on the bottom surface of the inner wall of the inner cavity. A sliding block is slidably engaged in the sliding groove. The top of the sliding block is fixedly connected with the bottom of the T-shaped block.

[0016] Preferably, the size of the limiting block is adapted to the size of the rectangular groove.

[0017] The beneficial effects of the present utility model are as follows:

[0018] 1. Through the structural design of the assembly groove, the support plate, the reserved hole and the positioning bolt, the present utility model can ensure the position of the ball head body can be adjusted while reducing the relatively complex transmission components in the prior art, effectively reducing the manufacturing cost and material consumption. And through the structural design of the positioning frame and the limiting block, the positioning bolt can be protected, reducing the rusting and wearing of the positioning bolt, prolonging the service life of the positioning bolt, and also ensuring the stability after the positioning bolt is installed.

[0019] 2. Through the structural design of the slot, inner cavity, spring, T-shaped block, lever and insertion block of the present utility model, after the positioning bolt is installed, when the limiting block is installed on the positioning frame, the cooperation between the insertion block and the slot can limit the positioning bolt, effectively preventing the positioning bolt from loosening during long-term use or under vibration. This not only reduces the safety hazards caused by bolt loosening, but also reduces the maintenance cost and time cost brought by frequent inspection and tightening of bolts, improving the overall stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a structural schematic diagram of a ball head type swing arm;

[0022] Figure 2 It is an assembly structural schematic diagram of a ball head body;

[0023] Figure 3 It is a connection structural schematic diagram of a support plate, a positioning bolt and a limiting block;

[0024] Figure 4 It is a structural schematic diagram of a limiting block;

[0025] Figure 5 It is a structural schematic diagram of a positioning frame;

[0026] Figure 6 It is a bottom structural schematic diagram of a limiting block;

[0027] Figure 7 It is a structural schematic diagram of a positioning bolt.

[0028] In the figure: 1, swing arm frame; 101, front bushing; 102, rear bushing; 103, assembly groove; 2, support plate; 201, ball head body; 202, reserved hole; 3, positioning frame; 301, rectangular groove; 302, positioning groove; 4, positioning bolt; 401, slot; 5, limiting block; 501, inner cavity; 502, spring; 503, T-shaped block; 504, lever; 505, insertion block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] The following will be further described in detail with reference to the attached Figure 1-7 This application will be further described in detail.

[0031] An embodiment of this application discloses a highly stable ball head type swing arm. Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 A highly stable ball head type swing arm includes a swing arm frame 1. A front bushing 101 and a rear bushing 102 are respectively arranged on the swing arm frame 1. An assembly groove 103 is opened on the swing arm frame 1. A pair of screw holes communicating with the assembly groove 103 are opened at the top of the swing arm frame 1. A support plate 2 is slidably fitted in the assembly groove 103. A ball head body 201 is arranged at one end of the support plate 2 outside the assembly groove 103. Two rows of reserved holes 202 are opened at the top of the support plate 2, and the number of the reserved holes 202 in each row is four.

[0032] A positioning frame 3 is fixedly connected to the top of the swing arm frame 1. A rectangular groove 301 is penetrated through the top of the positioning frame 3. Positioning grooves 302 are opened on both sides of the inner wall of the rectangular groove 301.

[0033] A pair of positioning bolts 4 are in threaded fit in the pair of screw holes. The bottom ends of the pair of positioning bolts 4 both pass through the screw holes and cooperate with the reserved holes 202. Four slots 401 are penetrated through the head of the positioning bolt 4.

[0034] A limiting block 5 is arranged in the rectangular groove 301. A limiting component is arranged on the limiting block 5. The number of the limiting components is two. The limiting components are arranged at both ends of the limiting block 5. Two groups of insertion blocks 505 are arranged at the bottom of the limiting block 5. The number of the insertion blocks 505 in each group is four. The four insertion blocks 505 respectively cooperate with the four slots 401 on the positioning bolt 4.

[0035] The limiting assembly includes an inner cavity 501 opened on the limiting block 5, a pair of springs 502 are fixedly connected to one side of the inner wall of the inner cavity 501, a T-shaped block 503 is slidably fitted in the inner cavity 501, one end of the pair of springs 502 is connected to the T-shaped block 503, one end of the T-shaped block 503 passes through the inner cavity 501 and cooperates with the positioning groove 302, and a lever 504 is provided on the T-shaped block 503, and the lever 504 passes through the inner cavity 501.

[0036] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The two side surfaces of the inner wall of the rectangular groove 301 are fixedly connected with supporting blocks, and the bottom of the limiting block 5 is overlapped on the supporting blocks.

[0037] By providing a supporting block, the limiting block 5 installed in the rectangular groove 301 is supported to ensure the stability of the limiting block 5 after installation.

[0038] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 A cover plate covering the inner cavity 501 is arranged on the top of the limit block 5 , and a movable groove is provided on the cover plate. The movable groove is connected with the inner cavity 501 , and the movable groove cooperates with the shift rod 504 .

[0039] By providing a cover plate, the related structures inside the inner cavity 501 are protected, and the movable groove serves as a channel for the lever 504 to move.

[0040] Reference Figure 4 and Figure 6 A hollow groove is formed through one side of the inner wall of the inner cavity 501 , and the T-shaped block 503 extends to the outside of the inner cavity 501 through the hollow groove.

[0041] By providing the hollow groove, the T-shaped block 503 can move back and forth to achieve cooperation with the positioning groove 302 .

[0042] Reference Figure 4 The shape of the lever 504 is an inverted "L" shape.

[0043] By designing the lever 504 into an inverted "L" shape, it is convenient for workers to perform the shifting operation.

[0044] Reference Figure 4 and Figure 6 A slide groove is provided on the bottom surface of the inner wall of the inner cavity 501 , and a slider is slidably fitted in the slide groove. The top of the slider is fixedly connected to the bottom of the T-shaped block 503 .

[0045] By setting the chute and the slider, the stability of the T-shaped block 503 during movement is higher.

[0046] Refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The size of the limiting block 5 is adapted to the size of the rectangular groove 301.

[0047] By arranging the limiting block 5 to be installed in the rectangular groove 301, the bolt 4 can be protected.

[0048] Working principle: When in use, first slide the support plate 2 to adjust the distance between the ball head body 201 and the swing arm frame 1. Then, insert the positioning bolt 4 into the screw hole on the swing arm frame 1. After tightening the positioning bolt 4, the positioning bolt 4 passes through the reserved hole 202 to complete the positioning of the support plate 2. Then, the staff pinches the lever 504 with fingers to make a pair of levers 504 approach each other. During this process, the lever 504 drives the T-shaped block 503 to move and contract into the inner cavity 501, and the T-shaped block 503 compresses the spring 502. Then, the staff places the limiting block 5 in the rectangular groove 301 to contact the support block. At this time, the insertion block 505 is inserted into the corresponding slot 401. After releasing the lever 504, under the reset of the spring 502, the T-shaped block 503 extends out of the inner cavity 501 through the hollow groove and extends into the positioning groove 302 to complete the positioning of the limiting block 5.

[0049] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A high-stability ball-head swing arm, comprising a swing arm frame (1), characterized in that: The swing arm frame (1) is provided with an assembly groove (103), the top of the swing arm frame (1) is provided with a pair of screw holes connected to the assembly groove (103), a support plate (2) is slidably fitted in the assembly groove (103), a ball head body (201) is provided at one end of the support plate (2) located outside the assembly groove (103), and two rows of reserved holes (202) are provided on the top of the support plate (2), and the number of the reserved holes (202) in each row is four; The top of the swing arm frame (1) is fixedly connected to a positioning frame (3), the top of the positioning frame (3) is provided with a rectangular groove (301) running through it, and both sides of the inner wall of the rectangular groove (301) are provided with positioning grooves (302); A pair of screw holes are both threadedly fitted with positioning bolts (4), the bottom ends of the pair of positioning bolts (4) pass through the screw holes and fit into the reserved holes (202), and the heads of the positioning bolts (4) are penetrated by four slots (401); A limit block (5) is arranged in the rectangular groove (301), and a limit assembly is arranged on the limit block (5). There are two limit assemblies, and the limit assemblies are arranged at both ends of the limit block (5). Two groups of plug blocks (505) are arranged at the bottom of the limit block (5), and each group of the plug blocks (505) has four plug blocks. The four plug blocks (505) respectively cooperate with the four slots (401) on the positioning bolt (4); The limiting assembly comprises an inner cavity (501) formed on the limiting block (5); a pair of springs (502) are fixedly connected to one side of the inner wall of the inner cavity (501); a T-shaped block (503) is slidably fitted in the inner cavity (501); one end of the pair of springs (502) is connected to the T-shaped block (503); one end of the T-shaped block (503) passes through the inner cavity (501) and then fits into the positioning groove (302); a lever (504) is provided on the T-shaped block (503); and the lever (504) passes through the inner cavity (501).

2. The high stability ball head swing arm according to claim 1, characterized in that: The swing arm frame (1) is respectively provided with a front bushing (101) and a rear bushing (102).

3. The high stability ball head swing arm according to claim 1, characterized in that: Support blocks are fixedly connected to both side surfaces of the inner wall of the rectangular groove (301), and the bottom of the limit block (5) is overlapped on the support block.

4. The high stability ball head swing arm according to claim 3, characterized in that: A cover plate covering the inner cavity (501) is arranged on the top of the limit block (5), and a movable groove is provided on the cover plate, the movable groove is communicated with the inner cavity (501), and the movable groove cooperates with the shifting rod (504).

5. The high stability ball head swing arm according to claim 1, characterized in that: A hollow groove is formed through one side surface of the inner wall of the inner cavity (501), and the T-shaped block (503) extends to the outside of the inner cavity (501) through the hollow groove.

6. The high stability ball head swing arm according to claim 4, characterized in that: The lever (504) is in an inverted "L" shape.

7. The high stability ball head swing arm according to claim 4, characterized in that: A sliding groove is provided on the bottom surface of the inner wall of the inner cavity (501), a sliding block is slidably fitted in the sliding groove, and the top of the sliding block is fixedly connected to the bottom of the T-shaped block (503).

8. The high stability ball head swing arm according to claim 3, characterized in that: The size of the limiting block (5) is adapted to the size of the rectangular groove (301).

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