Variable intake structure and motorcycle

Abstract

The utility model discloses a variable intake structure and motorcycle, including air cleaner, air cleaner has air intake chamber and the air intake pipe of connecting air intake chamber, the variable intake structure includes: driver, installs on the air intake chamber wall, including telescopic link and the push rod of connecting this telescopic link, telescopic link can make push rod produce reciprocating linear motion, the growth pipe, the growth pipe is fixedly connected or integral with air intake pipe, and the opening of near semicircle and along the growth pipe length direction is seted up in the growth pipe connection air intake pipe one end, an arc cover can be in opening or close the opening, in arc cover edge portion and push rod fixed connection. Through setting up the opening on the growth pipe, utilize slidable lid to open and close control to the opening, change the air intake length of air intake pipe to control the air intake of high speed and low speed of engine, reduced the occupancy of variable intake structure to air cleaner space to reduce design, processing manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle components, specifically to a variable air intake structure and a motorcycle. Background Technology

[0002] Traditional internal combustion engines have a fixed intake manifold length. This fixed length results in poor matching between high and low speed ranges, forcing a choice of balance between high and low speed conditions. Variable intake manifold length technology allows for optimal intake manifold length in both high and low speed ranges, thereby improving high-speed power and low-speed torque, effectively reducing fuel consumption and improving emissions.

[0003] However, the variable intake function of the air filter variable intake system in traditional internal combustion engines is achieved by connecting and disconnecting the variable intake pipe and the fixed intake pipe. This installation structure limits the length of the variable intake pipe within the limited space of the air filter housing. Furthermore, changing the length of the intake pipe by moving the variable intake pipe occupies space in the air filter and also affects the reliability of the connection between the variable intake pipe and the fixed intake pipe during back-and-forth movement. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a variable air intake structure and a motorcycle, which improves the reliability and durability of variable air intake operation through the sliding switch of the cover.

[0005] A variable intake structure includes an air filter having an intake chamber and an intake pipe connecting the intake chamber. The variable intake structure includes:

[0006] The actuator, mounted on the wall of the intake chamber, includes a telescopic rod and a push rod connected to the telescopic rod, the telescopic rod causing the push rod to produce reciprocating linear motion.

[0007] The growth tube is fixedly connected to or integrally formed with the intake pipe. A nearly semi-circular opening along the length of the growth tube is provided at the end where the growth tube connects to the intake pipe.

[0008] An arc-shaped cover can move along the length of the inlet tube to open or close the opening, and is fixedly connected to a push rod at the edge of the arc-shaped cover. This structure, by using a moving part to change the length of the air intake tube, ensures operational stability and reliability, and has a relatively simple structure. At the same time, it reduces the internal space of the air filter, thus miniaturizing the air filter structure.

[0009] Furthermore, raised ridges are provided at both edges of the opening of the growth tube, and grooves that mate with the raised ridges are provided on both sides of the arc-shaped cover. By providing raised ridges and grooves that mate with them, a good fit can be achieved. At the same time, the raised ridges have a guiding and limiting function, resulting in good guiding effect and stability.

[0010] Furthermore, a sealing strip is provided on the end face of the arc-shaped cover near the air intake pipe. This sealing strip ensures a tight seal between the arc-shaped cover and the air intake pipe, preventing air leakage at the short air intake pipe when a long air intake pipe is required, and better guaranteeing low-speed air intake.

[0011] Furthermore, the sealing strip is trumpet-shaped, which can wrap around the edge of the air intake pipe when combined with it. By setting it in a trumpet shape, the sealing effect of the arc-shaped cover when it covers the opening can be guaranteed.

[0012] Furthermore, the sealing strip has an annular groove at its edge, and when the arc-shaped cover engages with the intake pipe, the arc-shaped groove can be engaged with the intake pipe wall. This structure can better ensure a seal and guarantee the effective function of the long intake pipe.

[0013] Furthermore, the actuator is a solenoid valve, on which the telescopic rod is mounted. One end of the telescopic rod is connected to a push rod, and the other end of the push rod is fixedly connected to the side wall of the arc-shaped cover. The solenoid valve is a commonly used power structure, which can effectively control the movement of the telescopic rod and the push rod.

[0014] Furthermore, a limiting structure for the telescopic rod is provided within the solenoid valve. A blind hole is provided on the wall of the orifice accommodating the telescopic rod, and a spring is installed within the blind hole. A steel ball is mounted on the spring, and two grooves are spaced apart on the side wall of the telescopic rod to cooperate with the steel ball. By employing the limiting structure, when the solenoid valve is powered, the limiting structure can limit the telescopic rod. After power is cut off, due to the limiting effect, the telescopic rod can be kept in the extended or retracted state, thus preventing the solenoid valve from overheating.

[0015] Furthermore, the distance between the two grooves is the travel distance of the solenoid valve's telescopic rod. This distance ensures that the telescopic rod remains in a limited position after extension or retraction, and the structure is simple and easy to manufacture.

[0016] This utility model also provides a motorcycle equipped with the variable intake structure described above. A controller is also provided on the motorcycle. Based on the collected motorcycle operating conditions and engine operating conditions, the controller controls the drive unit to extend and retract the telescopic rod, thereby enabling either short or long intake pipe intake, which is beneficial for achieving powerful engine output.

[0017] The beneficial effects of this utility model are: by modifying the structure of the original growth tube, opening an opening on the growth tube, and using a sliding cover to control the opening and closing of the opening, the intake length of the intake pipe is changed, thereby controlling the intake of the engine at high and low speeds. The structural improvement is simple, while reducing the space occupied by the variable intake structure on the air filter and improving the reliability and durability of the variable intake structure. At the same time, the installation and fitting precision requirements are low, thereby reducing the design, processing and manufacturing costs. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the air filter of this utility model;

[0020] Figure 2 This is a schematic diagram of the variable air intake structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the variable intake pipe of this utility model;

[0022] Figure 4 This is a side view of the arc-shaped cover of this utility model.

[0023] Figure 5 This is a schematic diagram of a solenoid valve structure.

[0024] Figure 6 This is an enlarged schematic diagram of the limiting mechanism in this utility model. Detailed Implementation

[0025] like Figure 1-6 As shown, a variable air intake structure of this utility model includes an air filter 1 and an air filter housing 4. The air filter has an air intake chamber and an air intake pipe 11 connecting the air intake chamber. The variable air intake structure includes:

[0026] The actuator 6 is installed on the wall of the air intake chamber and includes a telescopic rod 9 and a push rod 12 connected to the telescopic rod. The telescopic rod 9 can cause the push rod 12 to produce reciprocating linear motion. Here, the telescopic rod and the push rod are connected by a crossbar or the push rod is L-shaped and fixed together with the telescopic rod. The purpose of this design is to have a certain gap space between the telescopic rod and the push rod, so as to facilitate the connection of the push rod with the arc-shaped cover described later.

[0027] The growth tube 3 is fixedly connected to or integrally formed with the intake pipe 11. An opening 7, which is nearly semi-circular and runs along the length of the growth tube, is provided at one end of the growth tube connected to the intake pipe. The length of the growth tube and the intake pipe connected together is just right for the intake pipe length used by the engine at low speeds, while the position of the opening at the growth tube is just right for the intake length required by the engine at high speeds. The intake pipe and the growth tube can be an integral intake pipe or separate components. The growth tube is fixedly connected to the end of the intake pipe, and an opening is provided at the connection between the growth tube and the intake pipe to make it conform to the length of the intake pipe for high-speed use. The size of the opening is at least not less than the diameter of the growth tube in the diameter direction.

[0028] An arc-shaped cover 5 can move along the length of the growth tube 3 on the opening 7 to open or close the opening 7. The arc of the arc-shaped cover matches the circumferential arc of the growth tube, but is only half of the circumferential arc or slightly larger or smaller.

[0029] The push rod 12 is fixedly connected to the edge of the arc-shaped cover 5. The push rod can be fixed to the edge of the arc-shaped cover or to the top of the arc-shaped cover. This structure can change the length of the air intake pipe by moving some parts, which can ensure the stability and reliability of operation and the structure is relatively simple. At the same time, it reduces the internal space of the air filter, making the air filter structure miniaturized.

[0030] The drive unit in this structure is controlled by the controller in the motorcycle. Based on the motorcycle's operating status received by the controller, it controls whether the drive unit opens the arc-shaped cover and whether to use a long intake pipe or a short intake pipe for air intake.

[0031] In this embodiment: as follows Figure 3 , 4 As shown in Figure 5, protruding ribs 31 are provided on both edges of the opening 7 of the growth tube, and grooves 51 that cooperate with the protruding ribs are provided on both sides of the arc-shaped cover. The length of the protruding ribs 31 is designed to be greater than the length of the arc-shaped cover, and can extend from the end of the arc-shaped cover near the air intake pipe to the end of the growth tube away from the air intake pipe, ensuring that the arc-shaped cover will not detach from the protruding ribs when it moves on the protruding ribs. The protruding ribs are provided at both ends of the growth tube and are basically located at two points on the diameter, and the distance between the protruding ribs is greater than the distance between the grooves at both ends of the arc-shaped cover. The arc-shaped cover is made of plastic and can be deformed to be installed on the protruding ribs. By setting the protruding ribs and the grooves that cooperate with the protruding ribs, they can be well matched. At the same time, the protruding ribs have a guiding and limiting function, with good guiding effect and good stability.

[0032] In this embodiment, a sealing strip (not shown in the figure) is provided on the cross-section of the arc-shaped cover near the end of the air intake pipe. This sealing strip can be fixed to the end face of the arc-shaped cover by adhesive. By setting the sealing strip, the sealing between the arc-shaped cover and the air intake pipe can be guaranteed, preventing air leakage at the short air intake pipe when a long air intake pipe is required, and better ensuring the low-speed air intake speed.

[0033] In this embodiment: the sealing strip is trumpet-shaped, but only half the size of the entire trumpet, slightly larger than the air intake pipe at the opening, just enough to completely cover it; when combined with the air intake pipe, it can wrap around the edge of the air intake pipe. By setting it in a trumpet shape, the sealing effect of the arc-shaped cover when covering the opening can be guaranteed.

[0034] In this embodiment, the edge of the sealing strip is an annular groove, which is also semi-circular. When the arc-shaped cover is engaged with the intake pipe, the arc-shaped groove can be engaged with the intake pipe wall. This structure can better ensure a seal and guarantee the effective function of the long intake pipe.

[0035] Note: A sealing strip is not required in this design. The small gap at the contact point of the curved cover has little impact on engine air intake. For a complete seal, a sealing strip can be installed. Additionally, a sealing ring can be placed around the curved cover and around the extension tube to ensure a seal and prevent slippage during sliding. This ensures that there is no air leakage between the curved cover and the opening when closed.

[0036] In this embodiment: as follows Figure 6 As shown, the actuator is a solenoid valve 6, which is equipped with a telescopic rod 9. The telescopic rod 9 is connected to one end of the push rod 12. Since there is a certain distance between the push rod and the telescopic rod, it can be designed as an L-shape, or a crossbar can be added between the telescopic rod and the push rod for connection; this ensures that the telescopic rod and the push rod do not interfere with the curved cover. The other end of the push rod is fixedly connected to the side wall of the curved cover. The solenoid valve is a commonly used power structure, which can effectively control the movement of the telescopic rod and the push rod.

[0037] In this embodiment: as follows Figure 6As shown, a limiting structure 8 for the telescopic rod is provided inside the solenoid valve. A blind hole is provided on the wall of the hole accommodating the telescopic rod, and a spring 10 is provided in the blind hole. A steel ball 13 is provided on the spring. Two grooves 14 are provided at intervals on the side wall of the telescopic rod to cooperate with the steel ball. The spring presses against the steel ball to cooperate with the groove, thereby limiting the movement and preventing the arc-shaped cover from sliding. When the solenoid valve is operated, it pushes the telescopic rod to move. Under the force of the steel ball, the spring is retracted by the downward pressure of the steel ball, thereby moving the telescopic rod. It is then limited again in the next groove. By adopting the limiting structure, when the solenoid valve is powered, the limiting structure can limit the telescopic rod. After the power is cut off, due to the limiting effect, the telescopic rod can be kept in the extended or retracted state, which can prevent the solenoid valve from overheating.

[0038] In this embodiment: the distance between the two grooves 14 is the travel distance of the solenoid valve telescopic rod, and the travel distance of the telescopic rod is the maximum opening degree. When it is at the maximum opening degree, the steel ball cooperates with the groove of the solenoid valve on the telescopic rod, restricting the movement of the telescopic rod. At this time, the solenoid valve can be de-energized. When the arc-shaped cover needs to cover the opening, the telescopic rod retracts, the steel ball is forced to press down the spring, and the telescopic rod moves to another groove, where the steel ball cooperates to limit the movement. The solenoid valve can also be de-energized, which can prevent the risk of overheating or damage to the solenoid valve due to prolonged energization. This distance can ensure that the telescopic rod is in a limited state after extension or retraction, and the structure is simple and easy to manufacture.

[0039] This utility model also provides a motorcycle equipped with the variable intake structure described above. The use of this variable intake structure on the motorcycle ensures the stability of the variable intake and improves the reliability and durability of the variable intake structure, indirectly enhancing the operational reliability of the motorcycle.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A variable air intake structure, comprising an air filter having an air intake chamber and an air intake pipe connecting the air intake chamber, characterized in that, The variable intake structure includes: The actuator, mounted on the wall of the air intake chamber, includes a telescopic rod and a push rod connected to the telescopic rod, the telescopic rod enabling the push rod to produce reciprocating linear motion; The growth tube is fixedly connected to or integrally formed with the air intake tube. A nearly semi-circular opening along the length of the growth tube is provided at one end of the growth tube connected to the air intake tube. An arc-shaped cover can move along the length of the growth tube to open or close the opening. The edge of the arc-shaped cover is fixedly connected to a push rod.

2. The variable intake structure according to claim 1, characterized in that: The growth tube opening has raised ridges on both edges, and the arc-shaped cover has grooves on both sides that match the raised ridges.

3. The variable intake structure according to claim 2, characterized in that: A sealing strip is provided on the end face of the arc-shaped cover near the air intake pipe.

4. The variable intake structure according to claim 3, characterized in that: The sealing strip is trumpet-shaped and can wrap around the edge of the air intake pipe when it is combined with the air intake pipe.

5. The variable intake structure according to claim 3, characterized in that: The sealing strip has an annular groove at its edge, and the arc-shaped cover can be engaged with the intake pipe wall when it is joined with the intake pipe.

6. The variable intake structure according to any one of claims 1-5, characterized in that: The actuator is a solenoid valve, and the solenoid valve is equipped with the telescopic rod. One end of the telescopic rod is connected to the push rod, and the other end of the push rod is fixedly connected to the side wall of the arc-shaped cover.

7. The variable intake structure according to claim 6, characterized in that: The solenoid valve is provided with a limiting structure to limit the telescopic rod. A blind hole is provided on the wall of the hole that accommodates the telescopic rod. A spring is provided in the blind hole, and a steel ball is provided on the spring. Two grooves are provided at intervals on the side wall of the telescopic rod to cooperate with the steel ball.

8. The variable intake structure according to claim 7, characterized in that: The distance between the two grooves is the travel distance of the solenoid valve telescopic rod.

9. A motorcycle, characterized in that: The motorcycle is equipped with a variable air intake structure as described in any one of claims 1-8.

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