Rocker arm damping device

Abstract

The utility model belongs to the field of shock absorbers, and provides a rocker shock absorption device which comprises a connecting rod, a base, a supporting rod, a rocker and a spring damper. According to the utility model, the tightness of the spring of the spring damper is adjusted through the adjusting mechanism, so that different damping effects of the spring damper are realized to adapt to different road conditions and load requirements; when a better damping effect is needed, the spring can be in a relaxed state through the adjusting mechanism, so that the spring can have more deformation space when being impacted, more energy is absorbed, and the better damping effect is achieved. On the contrary, when a hard damping effect is needed, the spring can be in a tightened state through the adjusting mechanism, the deformation space is reduced, and the damping device is more stable.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of shock absorber, specifically relates to a rocker arm damping device. BACKGROUND

[0002] The shock absorber is the commonly used component of vehicle, mechanical equipment etc., is used for reducing shock and impact, improves the stability and service life of equipment. Among them, the rocker arm damping device is widely used because of its simple structure, good damping effect and other advantages.

[0003] The shock absorber of tricycle usually uses rocker arm damping assembly, and the current rocker arm damping usually includes connecting rod, rocker and spring damper etc. parts, utilizes the rocker to push the spring damper action to realize the damping function, but the current rocker arm damping assembly usually cannot be adjusted, and the service life of spring is limited, and after long time use, the elasticity of spring will gradually weaken, and the damping effect is reduced. In view of this problem, the utility model provides a novel rocker arm damping device, to solve the problem of adjustable damping capacity and limited service life of spring damper in the prior art. UTILITY MODEL CONTENT

[0004] To solve the above technical problem, the utility model provides a rocker arm damping device to solve the problems in the prior art, and the technical scheme adopted by the utility model is:

[0005] A rocker arm damping device, comprising a connecting rod, a base, a support rod, a rocker and a spring damper.

[0006] The base top is installed with the connecting rod, the base bottom is fixedly connected with two support rods, the bottom of two support rods is rotatably connected with one end of two rockers respectively, the middle part of two rockers is rotatably connected with the bottom of two spring dampers respectively, and the top of two spring dampers is rotatably connected with the base.

[0007] Further, the support rod bottom is fixedly connected with a hinged seat, and the hinged seat is rotatably connected with the rocker.

[0008] Further, the spring damper comprises a damping telescopic rod and a spring, the spring is sleeved on the damping telescopic rod, and the spring of two spring dampers is abutted with an adjusting mechanism for adjusting the tightness of spring.

[0009] Further, the adjusting mechanism comprises a cross rod, a fixed rod and an adjusting shaft.

[0010] The bottom of the damping telescopic rods of the two spring dampers are respectively fixedly connected to the top of the two fixed rods, and the bottom of the two fixed rods are respectively rotatably connected to the middle of the two rockers; the two ends of the crossbar are slidably sleeved on the two fixed rods, and the adjusting shaft is used to lock the position of the crossbar.

[0011] Furthermore, the crossbar includes a bushing, an intermediate rod body, and a baffle; two bushings are fixedly connected to both ends of the intermediate rod body, and the two bushings are slidably sleeved on the two fixed rods. The baffles are fixedly connected to the top of each of the two bushings, and the two baffles abut against the bottom of the spring.

[0012] Furthermore, the intermediate rod body is a hollow structure, and two sliding rods are slidably arranged inside it. The bushing has a side opening that communicates with the intermediate rod body. The opposite ends of the two sliding rods are respectively located in the side opening. The opposite ends of the two sliding rods are connected to the adjusting shaft. The adjusting shaft is used to rotate to make the two sliding rods move relative to each other, so that the sliding rods abut against the fixed rod.

[0013] Furthermore, the end of the sliding rod and the side of the fixed rod are connected by a toothed groove to form an axial constraint on the fixed rod.

[0014] Furthermore, a disc is fixedly connected to the adjusting shaft, and two eccentric arc-shaped grooves are provided on the disc. A slider is provided in each of the two eccentric arc-shaped grooves, and the two sliders are respectively connected to the two sliding rods. The eccentric arc-shaped grooves are used to push the sliders to move radially when rotated, thereby causing the two sliding rods to move relative to each other.

[0015] Furthermore, the intermediate rod body is provided with a hollow part, and the upper and lower sides of the hollow part are respectively detachably connected to the upper top plate and the lower cover plate, and the adjusting shaft is rotatably connected to the upper top plate and the lower cover plate.

[0016] This invention offers the following advantages: By adjusting the spring tension of the spring damper through an adjustment mechanism, different damping effects can be achieved to adapt to varying road conditions and load requirements. When a stronger damping effect is needed, the spring can be made more relaxed through the adjustment mechanism, allowing it more deformation space upon impact and thus absorbing more energy for better damping. Conversely, when a stiffer damping effect is required, the spring can be made more taut through the adjustment mechanism, reducing deformation space and making the damping device more stable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the regulating mechanism;

[0019] Figure 3 This is a schematic diagram of an eccentric arc-shaped groove. Detailed Implementation

[0020] The following will refer to the embodiments of this utility model. Figures 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0021] like Figure 1 A rocker arm damping device includes a connecting rod 1, a base 2, a support rod 3, a rocker arm 5, and a spring damper;

[0022] The connecting rod 1 is installed on the top of the base 2, and two support rods 3 are fixedly connected to the bottom of the base 2. The bottom of the two support rods 3 are rotatably connected to one end of the two rocker arms 5, the middle part of the two rocker arms 5 is rotatably connected to the bottom of the two spring dampers, and the top of the two spring dampers is rotatably connected to the base 2.

[0023] This utility model can be used for the shock absorption system of a tricycle. In a specific implementation, the rocker arm 5 can be connected to the wheel hub, and the connecting rod 1 can be connected to the frame, with the wheel positioned between the two rocker arms 5. Alternatively, a crossbar can be installed in the middle of the two rocker arms 5, at the location where the two rocker arms 5 can rotatably connect to the spring damper. The crossbar rotatably connects the two rocker arms 5 and passes through them, with wheels arranged at both ends, or only one wheel at one end of the crossbar. When the vehicle encounters bumps during travel, the wheel hub, rocker arms 5, and spring damper eliminate road imperfections, ensuring smooth vehicle operation. Figure 1 In this utility model, two of each of the support rod 3, rocker arm 5, spring damper, and related accessories are provided. The spring damper is existing technology, and it includes a damping telescopic rod 6 and a spring 8.

[0024] Furthermore, the bottom of the support rod 3 is fixedly connected to the hinge seat 4, and the hinge seat 4 is rotatably connected to the rocker arm 5.

[0025] Furthermore, one end of the rocker arm 5, away from the support rod 3, is rotatably connected to the lower connecting plate 6.

[0026] Furthermore, the spring damper includes a damping telescopic rod 6 and a spring 8. The spring 8 is sleeved on the damping telescopic rod 6, and the springs 8 of the two spring dampers abut against an adjustment mechanism for adjusting the tension of the spring 8.

[0027] This invention uses an adjustment mechanism to adjust the tension of the spring 8 in a spring damper, thereby achieving different damping effects to adapt to various road conditions and load requirements. Specifically, when a stronger damping effect is needed, the spring 8 can be adjusted to a more relaxed state, allowing it more deformation space upon impact and thus absorbing more energy for better damping. Conversely, when a stiffer damping effect is needed, the spring 8 can be adjusted to a more taut state, reducing deformation space and making the damping device more stable.

[0028] like Figure 2 , Figure 3 The adjustment mechanism includes a crossbar 9, a fixed rod 7, and an adjustment shaft 10;

[0029] The bottom of the damping telescopic rods 6 of the two spring dampers are respectively fixedly connected to the top of the two fixed rods 7, and the bottom of the two fixed rods 7 are respectively rotatably connected to the middle of the two rocker arms 5; the two ends of the crossbar 9 are slidably sleeved on the two fixed rods 7, and the adjusting shaft 10 is used to lock the position of the crossbar 9.

[0030] Furthermore, the crossbar 9 includes a bushing 901, an intermediate rod body 902, and a baffle 903; the two ends of the intermediate rod body 902 are respectively fixedly connected to two bushings 901, the two bushings 901 are slidably sleeved on the two fixed rods 7, and the top of each of the two bushings 901 is fixedly connected to the baffle 903, and the two baffles 903 respectively abut against the bottom of the spring 8.

[0031] The damping telescopic rod 6 and the fixed rod 7 are coaxially arranged. The damping telescopic rod 6 includes two telescopically connected rods. The lower rod is fixedly connected to the fixed rod 7, and the upper rod is rotatably connected to the base 2. A limiting plate is fixedly connected to the upper rod. The two ends of the spring 8 act between the limiting plate and the baffle 903. When the road surface is bumpy, the two rods slide relative to each other, and the baffle 903 and the limiting plate compress the spring 8.

[0032] Furthermore, the intermediate rod 902 has a hollow structure, and two sliding rods 904 are slidably arranged inside it. The bushing 901 has a side opening that communicates with the intermediate rod 902. The opposite ends of the two sliding rods 904 are respectively located in the side opening. The opposite ends of the two sliding rods 904 are connected to the adjusting shaft 10. The adjusting shaft 10 is used to rotate to make the two sliding rods 904 move relative to each other, so that the sliding rods 904 abut against the fixed rod 7.

[0033] Furthermore, the end of the slide bar 904 and the side of the fixing rod 7 are connected by a toothed groove to form an axial constraint on the fixing rod 7.

[0034] Specifically, a toothed part can be fixedly provided at the end of the slide rod 904, and a groove can be provided on the side of the fixing rod 7. The toothed part and the groove cooperate to form a constraint in the vertical direction, locking the bushing 901 and the fixing rod 7. The toothed part can be a sawtooth shape, a protrusion shape, or other structures.

[0035] Furthermore, a disc 103 is fixedly connected to the adjusting shaft 10. Two eccentric arc grooves 105 are provided on the disc 103. A slider 104 is provided in each of the two eccentric arc grooves 105. The two sliders 104 are respectively connected to the two slide rods 904. The eccentric arc grooves 105 are used to push the sliders 104 to move radially when rotated, thereby causing the two slide rods 904 to move relative to each other.

[0036] Specifically, one end of the eccentric arc groove 105 is closer to the center of the disk 103, while the other end is farther from the center of the disk 103. When the adjusting shaft 10 drives the disk 103 to rotate, the slider 104 moves on the eccentric arc groove 105, causing the slider 104 and the slide rod 904 to move radially in the disk 103. Thus, by rotating the adjusting shaft 10, the teeth of the fixed rod 7 and the slide rod 904 can be engaged, locking or releasing the engagement. For example, when the adjusting shaft 10 is rotated in the reverse direction, the teeth of the fixed rod 7 and the slide rod 904 disengage, and the position of the baffle 903 can be adjusted up and down to adjust the tension of the spring 8; when the adjusting shaft 10 is rotated in the forward direction, the teeth of the fixed rod 7 and the slide rod 904 engage, and the position of the baffle 903 is locked.

[0037] Furthermore, the intermediate rod 902 is provided with a hollow part, and the upper and lower sides of the hollow part are respectively detachably connected to the upper top plate 101 and the lower cover plate 102 by bolts. The adjusting shaft 10 is rotatably connected to the upper top plate 101 and the lower cover plate 102.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications, alterations, alterations, or substitutions made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. A rocker arm vibration damping device, characterized in that, It includes a connecting rod (1), a base (2), a support rod (3), a rocker arm (5), and a spring damper; The connecting rod (1) is installed on the top of the base (2), and two support rods (3) are fixedly connected to the bottom of the base (2). The bottom of the two support rods (3) is rotatably connected to one end of the two rockers (5). The middle part of the two rockers (5) is rotatably connected to the bottom of the two spring dampers. The top of the two spring dampers is rotatably connected to the base (2).

2. The rocker arm vibration damping device according to claim 1, characterized in that, The bottom of the support rod (3) is fixedly connected to the hinge seat (4), and the hinge seat (4) is rotatably connected to the rocker arm (5).

3. The rocker arm vibration damping device according to claim 1, characterized in that, The spring damper includes a damping telescopic rod (6) and a spring (8). The spring (8) is sleeved on the damping telescopic rod (6). The springs (8) of the two spring dampers abut against an adjustment mechanism for adjusting the tension of the springs (8).

4. The rocker arm vibration damping device according to claim 3, characterized in that, The adjustment mechanism includes a crossbar (9), a fixed rod (7), and an adjustment shaft (10); The bottom of the damping telescopic rods (6) of the two spring dampers are respectively fixedly connected to the top of the two fixed rods (7), and the bottom of the two fixed rods (7) are respectively rotatably connected to the middle of the two rockers (5); the two ends of the crossbar (9) are slidably sleeved on the two fixed rods (7), and the adjusting shaft (10) is used to lock the position of the crossbar (9).

5. A rocker arm vibration damping device according to claim 4, characterized in that, The crossbar (9) includes a bushing (901), an intermediate rod body (902), and a baffle (903); the two ends of the intermediate rod body (902) are respectively fixedly connected to the two bushings (901), the two bushings (901) are respectively slidably sleeved on the two fixed rods (7), and the top of the two bushings (901) is fixedly connected to the baffle (903), and the two baffles (903) respectively abut against the bottom of the spring (8).

6. The rocker arm vibration damping device according to claim 5, characterized in that, The intermediate rod (902) is a hollow structure, and two sliding rods (904) are slidably arranged inside it. The bushing (901) has a side opening that connects to the intermediate rod (902). The opposite ends of the two sliding rods (904) are located in the side openings respectively. The opposite ends of the two sliding rods (904) are connected to the adjusting shaft (10). The adjusting shaft (10) is used to rotate to make the two sliding rods (904) move relative to each other so that the sliding rods (904) abut against the fixed rod (7).

7. A rocker arm vibration damping device according to claim 6, characterized in that, The end of the slide bar (904) and the side of the fixed rod (7) are connected by a toothed groove to form an axial constraint on the fixed rod (7).

8. The rocker arm vibration damping device according to claim 7, characterized in that, A disc (103) is fixedly connected to the adjusting shaft (10). Two eccentric arc grooves (105) are provided on the disc (103). A slider (104) is provided in each of the two eccentric arc grooves (105). The two sliders (104) are respectively connected to the two slide rods (904). The eccentric arc grooves (105) are used to push the sliders (104) to move radially when rotating, so that the two slide rods (904) move relative to each other.

9. A rocker arm vibration damping device according to claim 6, characterized in that, The intermediate rod (902) is provided with a hollow part, and the upper and lower sides of the hollow part are respectively detachably connected to the upper top plate (101) and the lower cover plate (102). The adjusting shaft (10) is rotatably connected to the upper top plate (101) and the lower cover plate (102).

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