Accelerator spring for engine

Abstract

The utility model relates to the technical field of accelerator springs, and discloses an accelerator spring for an engine, which comprises a top connecting plate and a bottom connecting plate, a first spring is fixedly mounted at the bottom of the top connecting plate, and a middle layering plate is fixedly mounted at the bottom end of the first spring. The first spring with the small elastic coefficient serves as a front section elastic force triggering structure for treading of the pedal, at the moment, the triggering stroke of the second spring is shorter than that of the first spring, at the moment, the damping feeling felt by a driver is small, after the pedal is loosened, the first spring rebounds, the second spring still rebounds, and therefore the first spring is pushed by the middle layering plate to rebounds rapidly; when the pedal is treaded by a large margin, the lower pressing ring is pressed on the middle layered plate, the first spring cannot be continuously extruded, the second spring is extruded, damping feeling changes are stable in the treading process, after the pedal is released, the first spring and the second spring rebound at the same time, and the rebound response rate is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of throttle springs, in particular to a throttle spring for an engine. Background Art

[0002] The accelerator pedal, also known as the accelerator pedal, is a device that controls the amount of fuel supplied to a vehicle's internal combustion engine. Its primary function is to directly control the throttle valve opening when the driver depresses the accelerator pedal, thereby controlling the amount of air entering the engine. Increasing or decreasing the amount of air entering the engine has a direct impact on the engine's power output.

[0003] Existing Chinese patent CN219029127U discloses an automobile accelerator pedal device, which reduces vibration by providing a return spring and a damper. However, a single return spring cannot achieve the purpose of rapid rebound, especially when the pedal is fully depressed. Utility Model Content

[0004] The purpose of the present utility model is to provide a throttle spring for an engine to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a throttle spring for an engine, comprising a top connecting plate and a bottom connecting plate, wherein a spring 1 is fixedly installed on the bottom of the top connecting plate, an intermediate layered plate is fixedly installed on the bottom end of the spring 1, a spring 2 is fixedly installed on the top of the bottom connecting plate, the top end of the spring 2 is fixedly connected to the bottom of the intermediate layered plate, a through hole is provided at the center of the intermediate layered plate and the bottom connecting plate, a guide rod 1 is fixedly installed on the bottom of the top connecting plate, the bottom end of the guide rod 1 passes through the through hole, a lower pressure ring is fixedly sleeved on the outer wall of the guide rod 1, the outer diameter of the lower pressure ring is larger than the inner diameter of the through hole, and the elastic coefficient of the spring 1 is smaller than the elastic coefficient of the spring 2.

[0006] Furthermore, a guide rod 2 is fixedly installed on the top of the bottom connecting plate, the top end of the guide rod 2 is movable through the bottom of the middle layered plate, and a limiting plate is fixedly installed on the top end of the guide rod 2. There are four guide rods 2, and they are distributed in a circular array on the bottom connecting plate.

[0007] Furthermore, a rubber ring is fixedly installed in the through hole in the center of the middle layered plate, and the guide rod passes through the center of the rubber ring.

[0008] Furthermore, a smooth sleeve is fixedly installed at the portion of the middle layered plate that is penetrated by the second guide rod, and the smooth sleeve is slidably mounted on the second guide rod.

[0009] Furthermore, a damper is fixedly installed on the top of the bottom connecting plate, and the top end of the damper is fixedly connected to the bottom of the middle layered plate. Two dampers are provided and are symmetrically distributed on the left and right.

[0010] Furthermore, an integrally formed extension body is provided at the edge of the bottom connecting plate, and threaded holes are provided at the center of the extension body and at the top of the top connecting plate.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. Use spring 1 and spring 2 distributed up and down, and use spring 1 with a smaller elastic coefficient as the front elastic force trigger structure when the pedal is stepped on. At this time, the trigger stroke of spring 2 is shorter than that of spring 1, and the driver feels less damping. After releasing the pedal, not only spring 1 rebounds, but spring 2 will also rebound, thereby pushing spring 1 to rebound quickly through the middle layered plate. When the pedal is stepped on significantly, the lower pressure ring presses on the middle layered plate, and spring 1 will not continue to be squeezed, while spring 2 will be squeezed, so that the damping feeling changes smoothly during the pedaling process. After releasing the pedal, spring 1 and spring 2 rebound at the same time to ensure the rebound response rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 For this utility model Figure 1 a schematic structural diagram of the right side cross-sectional view;

[0015] Figure 3 This is a schematic structural diagram of the middle layered plate and the bottom connecting plate of the utility model;

[0016] Figure 4 This is a structural diagram of the guide rod 1 and the lower pressure ring of the utility model.

[0017] In the figure: 1. Top connecting plate; 2. Guide rod 1; 3. Middle layered plate; 4. Bottom connecting plate; 5. Spring 1; 6. Spring 2; 7. Lower pressure ring; 8. Rubber ring; 9. Guide rod 2; 901. Limiting plate; 10. Smooth sleeve; 11. Damper; 12. Extension body. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figures 1-4The utility model provides a technical solution: a throttle spring for an engine, comprising a top connecting plate 1 and a bottom connecting plate 4. A spring 1 5 is fixedly installed on the bottom of the top connecting plate 1, and an intermediate layered plate 3 is fixedly installed on the bottom end of the spring 1 5. A spring 2 6 is fixedly installed on the top of the bottom connecting plate 4. The top end of the spring 2 6 is fixedly connected to the bottom of the intermediate layered plate 3. Through holes are provided at the centers of the intermediate layered plate 3 and the bottom connecting plate 4. A guide rod 1 2 is fixedly installed on the bottom of the top connecting plate 1, and the bottom end of the guide rod 1 2 passes through the through hole. A lower pressure ring 7 is fixedly sleeved on the outer wall of the guide rod 2. The outer diameter of the lower pressure ring 7 is larger than the inner diameter of the through hole. The elastic coefficient of the spring 1 5 is smaller than the elastic coefficient of the spring 2 6. The upper and lower distribution is adopted. The spring 15 and spring 26 are designed, and the spring 15 with a smaller elastic coefficient is used as the front elastic force trigger structure when the pedal is stepped on. At this time, the trigger stroke of spring 26 is shorter than that of spring 15, and the damping feeling felt by the driver is smaller. After releasing the pedal, not only spring 15 rebounds, but spring 26 will also rebound, thereby pushing spring 15 to rebound quickly through the middle layered plate 3. A guide rod 12 is provided for installing the lower pressure ring 7, that is, when the pedal is stepped on significantly, the lower pressure ring 7 presses on the middle layered plate 3. At this time, spring 15 will not continue to be squeezed, but spring 26 will be squeezed, so that the damping feeling changes smoothly during the pedaling process. After releasing the pedal, spring 15 and spring 26 rebound at the same time, ensuring the rebound response rate.

[0020] A guide rod 29 is fixedly installed on the top of the bottom connecting plate 4. The top end of the guide rod 29 movably passes through the bottom of the middle layered plate 3. A limit plate 901 is fixedly installed on the top end of the guide rod 29. Four guide rods 29 are provided and distributed in a circular array on the bottom connecting plate 4. The guide rods 29 are provided to guide the middle layered plate 3 and the bottom connecting plate 4 so that the middle layered plate 3 will not deviate when moving toward the bottom connecting plate 4. The limit plate 901 is provided to prevent the guide rod 29 from detaching from the middle layered plate 3.

[0021] A rubber ring 8 is fixedly installed in the through hole at the center of the middle layer plate 3. The guide rod 2 passes through the center of the rubber ring 8. When the guide rod 2 moves relative to the middle layer plate 3, it can provide a certain amount of damping, making the stepping feel obvious. At the same time, when the lower pressure ring 7 presses on the middle layer plate 3, the rubber ring 8 plays a certain buffering role, avoiding direct collision between the lower pressure ring 7 and the middle layer plate 3 to generate obvious noise;

[0022] A smooth sleeve 10 is fixedly installed at the portion of the intermediate layer plate 3 where the guide rod 2 9 passes through. The smooth sleeve 10 is slidably mounted on the guide rod 2 9. When the intermediate layer plate 3 slides up and down relative to the guide rod 2 9, the smooth sleeve 10 reduces the friction force on the intermediate layer plate 3, ensuring that the intermediate layer plate 3 is quickly reset when the spring 2 6 rebounds.

[0023] A damper 11 is fixedly installed on the top of the bottom connecting plate 4. The top of the damper 11 is fixedly connected to the bottom of the middle layered plate 3. There are two dampers 11, which are symmetrically distributed on the left and right. When the vibration is transmitted from the vehicle to the bottom connecting plate 4 and then to the smooth sleeve 10, the vibration is damped.

[0024] An integrally formed extension body 12 is provided at the edge of the bottom connecting plate 4 , and threaded holes are provided at the center of the extension body 12 and at the top of the top connecting plate 1 for connecting the top connecting plate 1 to the pedal and the bottom connecting plate 4 to the vehicle.

[0025] Working principle: When in use, spring 1 5 and spring 2 6 are distributed up and down, and spring 1 5 with a smaller elastic coefficient is used as the front elastic trigger structure when the pedal is stepped on. At this time, the trigger stroke of spring 2 6 is shorter than that of spring 1 5, and the damping feeling felt by the driver is smaller. After releasing the pedal, not only spring 1 5 rebounds, but spring 2 6 will also rebound, thereby pushing spring 1 5 to rebound quickly through the middle layered plate 3. When the pedal is stepped on with a large amplitude, the lower pressure ring 7 is pressed on the middle layered plate 3. At this time, spring 1 5 will not continue to be squeezed, but spring 2 6 will be squeezed, so that the damping feeling changes smoothly during the pedaling process. After releasing the pedal, spring 1 5 and spring 2 6 rebound at the same time to ensure the rebound response rate.

[0026] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A throttle spring for an engine, comprising a top connecting plate (1) and a bottom connecting plate (4), characterized in that: A spring 1 (5) is fixedly installed at the bottom of the top connecting plate (1), an intermediate layer plate (3) is fixedly installed at the bottom end of the spring 1 (5), a spring 2 (6) is fixedly installed at the top of the bottom connecting plate (4), the top end of the spring 2 (6) is fixedly connected to the bottom of the intermediate layer plate (3), through holes are provided at the centers of the intermediate layer plate (3) and the bottom connecting plate (4), a guide rod 1 (2) is fixedly installed at the bottom of the top connecting plate (1), the bottom end of the guide rod 1 (2) passes through the through hole, a lower pressure ring (7) is fixedly sleeved on the outer wall of the guide rod 1 (2), the outer diameter of the lower pressure ring (7) is larger than the inner diameter of the through hole, and the elastic coefficient of the spring 1 (5) is smaller than the elastic coefficient of the spring 2 (6).

2. The engine throttle spring according to claim 1, characterized in that: A second guide rod (9) is fixedly installed on the top of the bottom connecting plate (4), and the top end of the second guide rod (9) movably passes through the bottom of the middle layered plate (3). A limit plate (901) is fixedly installed on the top end of the second guide rod (9). Four second guide rods (9) are provided and are distributed in a circular array on the bottom connecting plate (4).

3. The engine throttle spring according to claim 1, characterized in that: A rubber ring (8) is fixedly installed in the through hole at the center of the middle layered plate (3), and the guide rod (2) passes through the center of the rubber ring (8).

4. The engine throttle spring according to claim 1, characterized in that: A smooth sleeve (10) is fixedly installed at the portion of the middle layered plate (3) penetrated by the second guide rod (9), and the smooth sleeve (10) is slidably sleeved on the second guide rod (9).

5. The engine throttle spring according to claim 1, characterized in that: A damper (11) is fixedly installed on the top of the bottom connecting plate (4), and the top end of the damper (11) is fixedly connected to the bottom of the middle layered plate (3). Two dampers (11) are provided and are symmetrically distributed on the left and right.

6. The engine throttle spring according to claim 1, characterized in that: An integrally formed extension body (12) is provided at the edge of the bottom connecting plate (4), and threaded holes are provided at the center of the extension body (12) and at the top of the top connecting plate (1).

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