A noise reduction optimized car limiter

Abstract

This utility model relates to the field of automotive parts technology, specifically a noise-reducing and optimized automotive limiter. The utility model includes a limiter main arm, a limiter box mounted on the surface of the limiter main arm, a limiter stop mounted on the surface of the limiter main arm, a U-shaped frame slidably connected to the surface of the limiter box, a lubricating pad slidably connected to the surface of the U-shaped frame, the lubricating pad being slidably connected to the surface of the limiter main arm, two square blocks fixedly connected to the surface of the limiter box, a sliding rod slidably inserted into the square blocks, a connecting plate fixedly connected to one end of the sliding rod, a limit rod fixedly connected to the surface of the connecting plate, two limit blocks fixedly connected to the surface of the U-shaped frame, limit grooves formed on the surface of the limit blocks, and a groove formed at the end of the sliding rod away from the connecting plate. This invention solves the problem of excessive friction between the limiter main arm and the limiter box during movement, resulting in excessive noise during the movement of the limiter main arm.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a noise-reducing optimized automotive limiter. Background Technology

[0002] As a key control component for car doors and other parts, the core function of a car door limiter is to limit the opening and closing range of the door and provide damping to ensure accurate door positioning and smooth operation. However, traditional car door limiters have revealed the following core problems during long-term use: the sliding structure with metal contact between the limiter main arm and the limiter box results in a high coefficient of friction when the two move relative to each other, causing obvious creaking noises during the opening and closing of the door. This noise problem is even more prominent in low-temperature environments. Such noise not only affects the comfort of driving and riding, but may also be regarded by users as a vehicle quality defect, reducing the product's competitiveness.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the friction between the main arm of the limiter and the limiter box is too large when the limiter moves, resulting in a large amount of noise generated when the main arm of the limiter moves; therefore, a noise-reducing optimized automotive limiter is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where excessive friction between the main arm of the limiter and the limiter box during movement results in significant noise. This invention proposes a noise-reducing and optimized automotive limiter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a noise-reducing and optimized car limiter, comprising a limiter main arm, a limiter box mounted on the surface of the limiter main arm, a limiter stop block mounted on the surface of the limiter main arm, a U-shaped frame slidably connected to the surface of the limiter box, a lubricating pad slidably connected to the surface of the U-shaped frame, the lubricating pad being slidably connected to the surface of the limiter main arm, two square blocks fixedly connected to the surface of the limiter box, a sliding rod slidably inserted into the square blocks, a connecting plate fixedly connected to one end of the sliding rod, a limit rod fixedly connected to the surface of the connecting plate, and two limit blocks fixedly connected to the surface of the U-shaped frame, with limit grooves formed on the surface of the limit blocks.

[0006] The aforementioned components achieve the following effect: they lubricate the main arm of the limit switch, preventing excessive friction between the main arm and the limit switch box during movement, thus avoiding excessive noise generated during movement and improving the practicality of the equipment.

[0007] Preferably, a groove is provided at the end of the sliding rod away from the connecting plate, and a handle is fixedly connected to the surface of the groove.

[0008] The effect achieved by the above components is that the handle facilitates the movement of the sliding bar by the staff, preventing the staff from slipping due to the lack of a suitable force point when moving the sliding bar.

[0009] Preferably, the surface of the limiter box is fixedly connected to two fixed blocks, the surface of the fixed blocks is rotatably connected to a rotating rod, and the end of the rotating rod away from the fixed blocks is fixedly connected to a blocking plate, and the surface of the blocking plate is provided with a blocking groove.

[0010] The effect achieved by the above components is that the baffle plate can restrict the movement of the limit rod, preventing the limit rod from accidentally being touched by the worker when moving the U-shaped frame, causing the limit rod to move and collide with the U-shaped frame, resulting in damage to the limit rod.

[0011] Preferably, the surface of the U-shaped frame has two square grooves, and auxiliary plates are fixedly connected to the surface of each square groove.

[0012] The effect achieved by the above components is that the auxiliary plate can restrict the movement of the U-shaped frame, thus playing a positioning role and enabling the staff to quickly move the U-shaped frame to the appropriate position.

[0013] Preferably, a spring is fitted onto the arc surface of the sliding rod, and the two ends of the spring are fixedly connected to the square block and the connecting plate, respectively.

[0014] The effect achieved by the above components is that the spring's rebound force automatically inserts the limit rod, while also restricting the movement of the limit rod and improving its stability during positioning.

[0015] Preferably, the surface of the limiter block is fixedly connected to two buffer pads, and each buffer pad has several buffer protrusions fixedly connected to its surface.

[0016] The aforementioned components achieve the following effect: they provide a buffering effect, preventing excessive noise when the limit switch box collides with the limit switch block during movement.

[0017] In summary, the beneficial effects of this utility model are as follows:

[0018] 1. In this utility model, the frictional force generated when the two parts slide relative to each other is reduced. By setting a lubricating pad on the surface of the limiter main arm that is slidably connected to the U-shaped frame, a continuous lubrication effect can be provided during the movement of the limiter main arm, reducing frictional wear between components. At the same time, the U-shaped frame is connected to the limiter box through structures such as sliding rod, connecting plate and limit rod. With the limiting design of limit block and limit groove, it can be ensured that the lubricating pad is always in contact with the surface of the limiter main arm, maintaining a stable lubrication effect, thereby reducing noise caused by friction and improving the comfort and durability of the car limiter. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the lubricating pad in this utility model;

[0021] Figure 3 In this utility model Figure 2 Partial structural diagram;

[0022] Figure 4 In this utility model Figure 3 Enlarged view of point A;

[0023] Figure 5 This is a schematic diagram of the structure of the buffer pad in this utility model.

[0024] Legend: 1. Limiter main arm; 2. Limiter box; 3. Limiter stop block; 4. U-shaped frame; 5. Lubricating pad; 6. Square block; 7. Sliding rod; 8. Connecting plate; 9. Limiting rod; 10. Limiting block; 11. Handle; 12. Fixing block; 13. Rotating rod; 14. Blocking plate; 15. Auxiliary plate; 16. Spring; 17. Buffer pad; 18. Buffer protrusion. Detailed Implementation

[0025] Reference Figures 1-5As shown, this utility model provides a technical solution: a noise-reducing optimized car limiter, including a limiter main arm 1, a limiter box 2 mounted on the surface of the limiter main arm 1, a limiter stop block 3 mounted on the surface of the limiter main arm 1, a U-shaped frame 4 slidably connected to the surface of the limiter box 2, a lubricating pad 5 slidably connected to the surface of the U-shaped frame 4, the lubricating pad 5 slidably connected to the surface of the limiter main arm 1, two square blocks 6 fixedly connected to the surface of the limiter box 2, a sliding rod 7 slidably inserted into the square block 6, a connecting plate 8 fixedly connected to one end of the sliding rod 7, a limit rod 9 fixedly connected to the surface of the connecting plate 8, and two limit blocks 10 fixedly connected to the surface of the U-shaped frame 4, with limit grooves formed on the surface of the limit blocks 10, achieving the ability to limit the main arm 1... The lubrication system prevents excessive friction between the main arm 1 and the limiter box 2 during movement, thus avoiding excessive noise and improving the equipment's practicality. A groove is provided at the end of the sliding rod 7 away from the connecting plate 8, and a handle 11 is fixedly connected to the surface of the groove. When the operator needs to remove the lubrication pad 5, pushing the handle 11 causes the sliding rod 7 to slide within the square block 6. The sliding rod 7 moves the connecting plate 8, which in turn moves the limit rod 9. When the limit rod 9 completely disengages from the surface of the limit groove in the limit block 10, it releases its fixation to the U-shaped frame 4, allowing the U-shaped frame 4 to move across the surface of the limiter box 2. When the U-shaped frame 4 reaches the appropriate position... The lubricating pad 5 is moved. When the lubricating pad 5 is completely detached from the surface of the U-shaped frame 4, the lubricating pad 5 is disassembled. After the worker puts the lubricating pad 5 back in its original position, the U-shaped frame 4 is moved back to its original position. At this time, the limiting rod 9 is located directly in front of the limiting groove of the limiting block 10. The handle 11 is moved, and the handle 11 drives the sliding rod 7 to move. The sliding rod 7 drives the connecting plate 8 to move. The connecting plate 8 drives the limiting rod 9 to move. When the limiting rod 9 is inserted into the surface of the limiting groove of the limiting block 10, the limiting rod 9 can fix the U-shaped frame 4. The handle 11 achieves the effect of facilitating the worker to move the sliding rod 7 and preventing the worker from slipping due to the lack of a suitable force point when moving the sliding rod 7. Two fixing blocks 12 are fixedly connected to the surface of the limiter box 2. A rotating rod 13 is rotatably connected to the surface of the U-shaped frame 4. A blocking plate 14 is fixedly connected to the end of the rotating rod 13 away from the fixed block 12. A blocking groove is formed on the surface of the blocking plate 14. When the operator needs to move the U-shaped frame 4, they push the handle 11 to move the sliding rod 7, which in turn moves the connecting plate 8. The connecting plate 8 then moves the limiting rod 9. When the limiting rod 9 releases its fixation on the U-shaped frame 4, the blocking plate 14 is rotated. When the blocking plate 14 rotates to the appropriate position, the limiting rod 9 is positioned directly in front of the blocking groove on the blocking plate 14. Inserting the limiting rod 9 into the surface of the blocking groove on the blocking plate 14 restricts the movement of the limiting rod 9, allowing the operator to move the U-shaped frame 4. The blocking plate 14 effectively restricts the movement of the limiting rod 9.To prevent workers from accidentally hitting the limiting rod 9 when moving the U-shaped frame 4, which could cause the limiting rod 9 to move and collide with the U-shaped frame 4, resulting in damage, two square grooves are formed on the surface of the U-shaped frame 4. An auxiliary plate 15 is fixedly connected to the surface of each square groove. When workers need to return the U-shaped frame 4 to its original position, they move the U-shaped frame 4, which slides on the surface of the limiting box 2. When the surface of the auxiliary plate 15 contacts the limiting box 2, the U-shaped frame 4 stops moving. At this point, the U-shaped frame 4 has moved to the appropriate position. The auxiliary plate 15 effectively restricts the movement of the U-shaped frame 4, serving a positioning function, allowing workers to quickly move the U-shaped frame 4 to the appropriate position. A spring 16 is fitted onto the arc surface of the sliding rod 7. The two ends of the spring 16 are fixedly connected to the square block 6 and the connecting plate 8, respectively. When workers move the handle 11, the handle 11 moves the sliding rod 7, stretching the spring 16. The sliding rod 7 moves the connecting plate 8, which in turn moves the limiting rod 9. When the limiting rod 9... When the U-shaped frame 4 is completely disengaged from the surface of the limiting slot of the limiting block 10, the operator can move the U-shaped frame 4. After the operator moves the U-shaped frame 4 back to its original position, the operator releases the handle 11. The rebound force of the spring 16 drives the connecting plate 8 to move, and the connecting plate 8 drives the limiting rod 9 to move until the limiting rod 9 is inserted into the surface of the limiting slot of the limiting block 10. The rebound force of the spring 16 achieves the effect of automatically inserting the limiting rod 9, while also restricting the movement of the limiting rod 9, thus improving the stability of the limiting rod 9 when it is in the limiting position. Two... Two buffer pads 17 each have several buffer protrusions 18 fixedly connected to their surfaces. When the operator opens the car door, the limiter main arm 1 slides within the limiter box 2. When the surface of the limiter box 2 contacts the surface of the buffer protrusions 18, the car door opens fully. The buffer protrusions 18 reduce the impact force between the limiter box 2 and the limiter stop 3, thus achieving a certain buffering effect and preventing loud noise when the limiter box 2 collides with the limiter stop 3 during movement.

[0026] Working principle: When the operator needs to remove the lubricating pad 5, push the handle 11. The handle 11 drives the sliding rod 7 to slide within the square block 6, stretching the spring 16. The sliding rod 7 drives the connecting plate 8 to move, and the connecting plate 8 drives the limiting rod 9 to move. When the limiting rod 9 is completely disengaged from the surface of the limiting groove of the limiting block 10, the limiting rod 9 releases its fixation to the U-shaped frame 4. Rotate the blocking plate 14. When the blocking plate 14 rotates to the appropriate position, the limiting rod 9 is located directly in front of the blocking groove of the blocking plate 14. Insert the limiting rod 9 into the surface of the blocking groove of the blocking plate 14. At this time, the blocking plate 14 can restrict the movement of the limiting rod 9, and the operator can move the U-shaped frame 4. The U-shaped frame 4 moves on the surface of the limiter box 2. When the U-shaped frame 4 moves to the appropriate position, move the lubricating pad 5. When the lubricating pad 5 is completely disengaged from the surface of the U-shaped frame 4, the lubricating pad 5 is removed. When the operator needs to put the U-shaped frame 4 back in its original position, move the U-shaped frame 4. The U-shaped frame 4 slides on the surface of the limiter box 2. When the surface of the auxiliary plate 15 contacts the limiter box 2, the U-shaped frame 4 stops moving. At this time, the U-shaped frame 4 moves to the appropriate position, and the limit rod 9 is moved out of the surface of the blocking groove of the blocking plate 14. The blocking plate 14 is rotated back to its original position, and the handle 11 is moved. The handle 11 drives the sliding rod 7 to move, the sliding rod 7 drives the connecting plate 8 to move, and the connecting plate 8 drives the limit rod 9 to move. When the limit rod 9 is inserted into the surface of the limit groove of the limit block 10, the limit rod 9 can fix the U-shaped frame 4. When the operator opens the car door, the limiter main arm 1 slides in the limiter box 2. When the surface of the limiter box 2 contacts the surface of the buffer protrusion 18, the car door is fully opened. The buffer protrusion 18 can reduce the impact force between the limiter box 2 and the limiter stop 3, and play a certain buffering effect. At this time, the limiter main arm 1 can be lubricated to prevent the friction between the limiter main arm 1 and the limiter box 2 from being too large when moving, which would cause the limiter main arm 1 to generate a lot of noise when moving.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A noise reduction optimized automobile limiter, comprising a limiter main arm (1), characterized in that: A limiter box (2) is installed on the surface of the limiter main arm (1), a limiter stop (3) is installed on the surface of the limiter main arm (1), a U-shaped frame (4) is slidably connected to the surface of the limiter box (2), a lubricating pad (5) is slidably connected to the surface of the U-shaped frame (4), the lubricating pad (5) is slidably connected to the surface of the limiter main arm (1), two square blocks (6) are fixedly connected to the surface of the limiter box (2), a sliding rod (7) is slidably inserted in the square block (6), a connecting plate (8) is fixedly connected to one end of the sliding rod (7), a limit rod (9) is fixedly connected to the surface of the connecting plate (8), two limit blocks (10) are fixedly connected to the surface of the U-shaped frame (4), and a limit groove is opened on the surface of the limit block (10).

2. The noise reduction optimized automotive limiter of claim 1, wherein: The sliding rod (7) has a groove at one end away from the connecting plate (8), and a handle (11) is fixedly connected to the surface of the groove.

3. The noise reduction optimized automotive limiter of claim 1, wherein: The surface of the limiter box (2) is fixedly connected to two fixing blocks (12), and the surface of the fixing blocks (12) is rotatably connected to a rotating rod (13). The end of the rotating rod (13) away from the fixing blocks (12) is fixedly connected to a blocking plate (14), and the surface of the blocking plate (14) is provided with a blocking groove.

4. The noise reduction optimized automotive limiter of claim 1, wherein: The surface of the U-shaped frame (4) has two square grooves, and auxiliary plates (15) are fixedly connected to the surfaces of the two square grooves.

5. The noise reduction optimized automotive limiter of claim 1, wherein: The arc surface of the sliding rod (7) is fitted with a spring (16), and the two ends of the spring (16) are fixedly connected to the square block (6) and the connecting plate (8) respectively.

6. The noise reduction optimized automotive limiter of claim 1, wherein: The surface of the limiter block (3) is fixedly connected to two buffer pads (17), and the surface of each of the two buffer pads (17) is fixedly connected to several buffer protrusions (18).

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