Throttle valve opening and closing control device

Abstract

The utility model relates to a throttle valve opening and closing control device which comprises a control box, a gear cavity is formed in the control box, a sector gear, a duplicate gear and a driving gear are arranged in the gear cavity in a rotating mode, a driving mechanism connected with the driving gear is installed on the control box, and the driving gear is meshed with the duplicate gear. The control box is provided with an assembly column penetrating into the gear cavity, an assembly cavity with an opening facing the end away from the gear cavity is formed in the assembly column, a sliding penetrating hole is formed in the end, located in the gear cavity, of the assembly column, and a reset rod penetrating out of the sliding penetrating hole and abutting against the sector gear is arranged in the assembly cavity. A reset spring pressed on the reset rod is arranged in the assembly cavity, an adjusting piece used for compressing the end, away from the reset rod, of the reset spring is arranged on the assembly column, and an adjustable reset mechanism is provided, so that the rotation reset speed of the rotating shaft can be adjusted according to needs.

Description

Technical Field

[0001] This utility model relates to the field of throttle valve technology, and in particular to a throttle valve opening and closing control device. Background Technology

[0002] The throttle valve, as a key component, plays a crucial role in the intake system of an internal combustion engine. It directly affects the engine's power output and fuel economy by controlling the amount of air entering the engine. Traditional throttle valve designs typically include a rotatable valve plate connected to a shaft and driven by a motor via a series of gears to adjust its opening. For example, an existing utility model patent (application number 202421141245.1) provides an easy-to-assemble throttle valve design in which a motor indirectly drives a sector gear through a double-layer gear system, thereby controlling the valve plate's opening. Furthermore, a torsion spring is used to ensure that the valve plate automatically returns to its original position and closes when power is lost.

[0003] However, this design has certain limitations. Specifically, the built-in torsion spring is preset and fixed, and its torque cannot be flexibly adjusted according to actual needs. This means that the valve plate's return speed is constant and unadjustable under different operating conditions. In some applications, this may lead to problems such as untimely response or overreaction, affecting the overall system performance and efficiency. Therefore, existing technology lacks a device that can flexibly adjust the throttle opening and closing speed to meet diverse needs and optimize system performance. To address this deficiency, we propose a new throttle opening and closing control device designed to solve the above problems and provide more precise and flexible control capabilities. Utility Model Content

[0004] This invention proposes a throttle valve opening and closing control device, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: A throttle opening and closing control device includes a control box, a gear cavity is provided inside the control box, a sector gear, a double gear and a drive gear are rotatably arranged in the gear cavity, a drive mechanism connected to the drive gear is installed on the control box, the drive gear meshes with the double gear, the double gear meshes with the sector gear, an assembly post is provided on the control box that penetrates into the gear cavity, an assembly cavity is provided inside the assembly post with an opening facing away from the gear cavity, a sliding through hole is provided at one end of the assembly post located in the gear cavity, a reset rod is provided in the assembly cavity that extends out of the sliding through hole and abuts against the sector gear, a reset spring is provided in the assembly cavity that presses against the reset rod, and an adjustment component is provided on the assembly post for compressing the end of the reset spring away from the reset rod.

[0006] Preferably, the adjusting component includes a threaded post, which is threadedly engaged with the opening of the assembly cavity of the assembly post, and the end of the threaded post located outside the assembly cavity has an internal hexagonal bevel.

[0007] Preferably, a positioning nut is also threaded onto the threaded column, and the positioning nut abuts against the assembly column.

[0008] Preferably, a limiting plate is fixedly connected to the reset rod, the limiting plate abuts against the end of the assembly cavity near the sliding through hole, and the two ends of the reset spring abut against the threaded post and the limiting plate respectively.

[0009] Preferably, one end of the reset rod that abuts against the sector gear is rotatably connected to a ball bearing, the sector gear having a sector-shaped convex surface, and the ball bearing abuts against the sector-shaped convex surface.

[0010] Preferably, the fan-shaped convex surface is provided with a positioning track groove corresponding to the ball, and the positioning track groove is used for the ball to be held in place and roll.

[0011] Preferably, the drive mechanism includes a motor, the output shaft of which is fixedly connected to the drive gear, and the double gear includes an integrally formed large gear and a small gear, the drive gear meshing with the large gear and the small gear meshing with the sector gear.

[0012] Preferably, the outer wall of the assembly column is provided with an external thread, the control box is provided with a threaded hole that penetrates into the gear cavity, the assembly column is threaded onto the threaded hole through the external thread, and a clamping nut for pressing against the control box is also threaded onto the external thread of the assembly column.

[0013] In summary, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the assembly of a column, a reset rod, and a reset spring, and by providing an adjustable reset mechanism, allows the rotational reset speed of the shaft to be adjusted as needed. Specifically, the adjusting component adopts a threaded column design to facilitate precise adjustment of the compression degree of the reset spring, thereby achieving fine-tuning of the reset speed, and the operation is simple.

[0015] 2. The ball bearing design on the reset rod reduces friction, making the reset process smoother and extending service life. The positioning track groove further ensures the movement trajectory of the ball bearing, improving the working accuracy and stability of the system.

[0016] 3. By adopting motor drive and double gear transmission, precise power transmission is achieved, enhancing the control accuracy of the system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model installed on the throttle body;

[0019] Figure 2 Figure 1 A structural diagram after removing a portion of the control box;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure where the assembly column was blown out;

[0021] Figure 4 This is a cross-sectional structural diagram of the assembly column in this utility model.

[0022] In the diagram: 1. Control box; 11. Gear cavity; 12. Threaded hole; 2. Sector gear; 21. Sector convex surface; 22. Positioning track groove; 3. Double gear; 31. Large gear; 32. Small gear; 4. Drive gear; 5. Assembly column; 51. Assembly cavity; 52. Sliding through hole; 53. External thread; 54. Holding nut; 6. Reset rod; 61. Limit plate; 62. Ball bearing; 7. Reset spring; 8. Threaded column; 81. Hexagonal revolving head; 82. Positioning nut; 9. Motor; 100. Throttle body; 101. Valve plate; 102. Shaft. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example:

[0025] like Figures 1 to 4As shown, this utility model discloses a throttle valve opening and closing control device, including a control box 1, which is fixed to the throttle valve housing 100. A gear cavity 11 is provided inside the control box 1, and a sector gear 2, a double gear 3, and a drive gear 4 are rotatably arranged in the gear cavity 11. The sector gear 2 is connected to the rotating shaft 102 of the valve plate 101. A drive mechanism connected to the drive gear 4 is installed on the control box 1. Specifically, the drive mechanism includes a motor 9, the output shaft of which is fixedly connected to the drive gear 4. The drive gear 4 meshes with the double gear 3, and the double gear 3 meshes with the sector gear 2. Therefore, the motor 9 drives the drive gear 4... Gear 4 rotates, which in turn indirectly drives sector gear 2 through double gear 3, ultimately causing valve plate 101 connected to it to rotate. In this utility model, control box 1 is provided with an assembly post 5 that penetrates into gear cavity 11. The assembly post 5 has an assembly cavity 51 with an opening facing away from gear cavity 11. The end of the assembly post 5 located in gear cavity 11 has a sliding through hole 52. The assembly cavity 51 is provided with a reset rod 6 that passes through the sliding through hole 52 and abuts against sector gear 2. In addition, the assembly cavity 51 is provided with a reset spring 7 that presses against reset rod 6. The assembly post 5 is provided with an adjustment member for compressing the end of reset spring 7 away from reset rod 6.

[0026] Specifically, the adjusting component includes a threaded post 8, which is threadedly fitted into the opening of the assembly cavity 51 of the assembly post 5. The end of the threaded post 8 located outside the assembly cavity 51 has an internal hexagonal revolving port 81. The design of the threaded post 8 facilitates precise adjustment of the compression degree of the return spring 7, thereby achieving fine adjustment of the return speed and making the operation simple. The internal hexagonal revolving port 81 facilitates the rotation of the threaded post 8 and will not get stuck when the threaded post 8 is fully inside the assembly cavity 51.

[0027] Furthermore, a positioning nut 82 is threadedly connected to the threaded column 8, and the positioning nut 82 abuts against the assembly column 5. The addition of the positioning nut 82 ensures the stability after adjustment and prevents loosening due to vibration and other factors.

[0028] In this utility model, a limiting plate 61 is fixedly connected to the reset rod 6. The limiting plate 61 abuts against the end of the assembly cavity 51 near the sliding through hole 52 to prevent the reset rod 6 from completely dislodging from the assembly cavity 51. In addition, the two ends of the reset spring 7 abut against the threaded post 8 and the limiting plate 61 respectively.

[0029] In this utility model, a ball bearing 62 is rotatably connected to one end of the reset rod 6 that abuts against the sector gear 2. The sector gear 2 includes a sector-shaped convex surface 21, and the ball bearing 62 abuts against the sector-shaped convex surface 21. The design of the ball bearing 62 reduces friction, making the reset process smoother and extending its service life.

[0030] In addition, a positioning track groove 22 corresponding to the ball 62 is provided on the fan-shaped convex surface 21. The positioning track groove 22 is used for the ball 62 to be held in the groove and roll. The positioning track groove 22 further ensures the movement trajectory of the ball 62 and improves the working accuracy and stability of the system.

[0031] When the sector gear 2 is driven, it pushes the reset rod 6, which compresses the reset spring 7. One end of the reset rod 6 contacts the sector-shaped convex surface 21 of the sector gear 2 via a ball bearing 62 and can roll within the positioning track groove 22 to reduce friction and ensure accurate position feedback. During reset, the reset spring 7 pushes the reset rod 6, causing it to return to its original position along the sliding through hole 52, thereby driving the sector gear 2 to rotate in the opposite direction and closing the valve plate 101. In particular, the reset speed can be adjusted via the threaded post 8. The degree to which the threaded post 8 is screwed into the assembly cavity 51 determines the preload of the reset spring 7, thus affecting the reset speed. The positioning nut 82 is used to lock the adjustment position to prevent accidental changes.

[0032] In this invention, the double gear 3 includes an integrally formed large gear 31 and a small gear 32. The driving gear 4 meshes with the large gear 31, and the small gear 32 meshes with the sector gear 2. This structure enables more precise power transmission and enhances the control accuracy of the system.

[0033] In this utility model, an external thread 53 is provided on the outer wall of the assembly column 5, and a threaded hole 12 is provided on the control box 1 to penetrate into the gear cavity 11. The assembly column 5 is threadedly engaged with the threaded hole 12 by the external thread 53. A clamping nut 54 for pressing on the control box 1 is also threadedly connected to the external thread 53 of the assembly column 5. This structure facilitates the assembly and disassembly of the assembly column, while the clamping nut 54 ensures the firmness and stability of the assembly column 5.

[0034] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A throttle valve opening and closing control device, characterized in that: The device includes a control box with a gear cavity inside. A sector gear, a double gear, and a drive gear are rotatably mounted within the gear cavity. A drive mechanism connected to the drive gear is installed on the control box. The drive gear meshes with the double gear, and the double gear meshes with the sector gear. The control box has an assembly post penetrating into the gear cavity. The assembly post has an opening facing away from the gear cavity. A sliding through-hole is located at one end of the assembly post within the gear cavity. A reset rod, extending through the sliding through-hole and abutting against the sector gear, is located within the assembly cavity. A reset spring, pressing against the reset rod, is located within the assembly cavity. An adjustment component is provided on the assembly post for compressing the end of the reset spring away from the reset rod.

2. The throttle valve opening and closing control device according to claim 1, characterized in that: The adjusting component includes a threaded post, which is threadedly engaged with the opening of the assembly cavity of the assembly post. The end of the threaded post located outside the assembly cavity has an internal hexagonal revolving port.

3. The throttle valve opening and closing control device according to claim 2, characterized in that: A positioning nut is also threaded onto the threaded column, and the positioning nut abuts against the assembly column.

4. The throttle valve opening and closing control device according to claim 2, characterized in that: A limiting plate is fixedly connected to the reset rod. The limiting plate abuts against the end of the assembly cavity near the sliding through hole. The two ends of the reset spring abut against the threaded post and the limiting plate, respectively.

5. The throttle valve opening and closing control device according to claim 1, characterized in that: The reset rod is rotatably connected to a ball bearing at one end abutting against the sector gear. The sector gear includes a sector-shaped convex surface, and the ball bearing abuts against the sector-shaped convex surface.

6. A throttle valve opening and closing control device according to claim 5, characterized in that: The fan-shaped convex surface is provided with a positioning track groove corresponding to the ball, and the positioning track groove is used for the ball to be held in the groove and roll.

7. A throttle valve opening and closing control device according to claim 1, characterized in that: The drive mechanism includes a motor, the output shaft of which is fixedly connected to the drive gear. The double gear includes an integrally formed large gear and a small gear. The drive gear meshes with the large gear, and the small gear meshes with the sector gear.

8. The throttle valve opening and closing control device according to claim 1, characterized in that: The outer wall of the assembly column is provided with external threads, and the control box is provided with a threaded hole that penetrates into the gear cavity. The assembly column is threaded onto the threaded hole through the external threads, and a clamping nut for pressing against the control box is also threaded onto the external threads of the assembly column.

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