Plastic composite type electronic throttle valve

Abstract

The utility model is suitable for the technical field of electronic throttle valves, and particularly relates to a plastic composite type electronic throttle valve which comprises a plastic valve body, a valve rod is rotatably connected in the plastic valve body, a valve plate is connected to the outer side of the valve rod, and an upper end cover is connected to the surface of the plastic valve body. And a driving assembly is jointly arranged in the plastic valve body and the upper end cover, a torsional spring is installed in the plastic valve body, a preset embedding inner hole is formed in the plastic valve body, and a metal ring is embedded in the preset embedding inner hole. By optimizing the structures of the plastic valve body and the valve plate, the utility model has obvious beneficial effects. The embedded inner hole is preset in the plastic valve body, and the metal ring is embedded through the through hole, so that not only is the mounting process simplified, but also the production cost is effectively reduced. In addition, reinforcing ribs arranged on the surface of the metal ring enhance the strength and stability of the valve body, and the durability of the whole device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic throttle valve technical field, concretely is a plastic composite electronic throttle valve. BACKGROUND

[0002] With the continuous development of automobile electronic technology, electronic throttle valve as one of the core components in the automobile engine management system has been widely used in modern automobile. The traditional electronic throttle valve is mainly composed of valve body and valve plate of metal material, this design although meets the basic functional demand, but there is certain limitation in weight, corrosion resistance and cost control.

[0003] The traditional metal valve plate is easily affected by environmental factors during use, corrosion and wear occur, resulting in increased maintenance cost. In addition, the structure of the metal ring is relatively complex, usually needs to be fastened with the valve body through screw connection and the like, increases the complexity of production process and production cost. SUMMARY

[0004] The utility model embodiment purposes at providing a plastic composite electronic throttle valve, aims at solving the technical problem mentioned in the background art.

[0005] In order to achieve the above object, the utility model provides the following technical scheme:

[0006] A plastic composite electronic throttle valve, including plastic valve body, and the inside rotation of plastic valve body is connected with valve rod, the outside of valve rod is connected with valve plate, the surface of plastic valve body is connected with upper end cover, and the inside of plastic valve body and upper end cover is provided with drive assembly, the inside of plastic valve body is installed with torsion spring, the inside of plastic valve body is provided with preset embedding inner hole, and the inside of preset embedding inner hole is inlaid with metal ring, the both sides of metal ring surface are provided with through hole, and two through holes are on the same axis, the outside of metal ring is provided with first reinforcing rib;

[0007] The valve plate is made of composite plastic, and a plurality of second reinforcing ribs are arranged on the side surface of the valve plate.

[0008] Further, the two sides of the side surface of the valve plate are provided with drive sleeves, and the inside of the drive sleeves is provided with a rectangular through hole, the outside of the valve rod is provided with two square protruding columns, and the shape of the square protruding columns is matched with the shape of the rectangular through hole.

[0009] Further, the side of the valve plate away from the second reinforcing rib is in an arc structure.

[0010] Further, the first bearing and the second bearing are respectively arranged on two sides of the interior of the plastic valve body, and the valve rod is rotatably arranged in the interior of the plastic valve body through the first bearing and the second bearing, the shaft snap spring is arranged on the surface of the valve rod close to the position of the second bearing, and one end of the surface of the plastic valve body away from the upper end cover is provided with a plug.

[0011] Further, the driving assembly comprises a driving motor, the driving motor is arranged in the interior of the plastic valve body, the output end of the driving motor is provided with a driving gear, the interior of the plastic valve body is provided with a transmission shaft, the outer side of the transmission shaft is sleeved with a double gear set, the outer side of the valve rod is sleeved with a sector gear, one group of gears in the double gear set is meshed with the driving gear, and the other group of gears is meshed and connected with the sector gear.

[0012] Further, the two sides of the interior of the upper end cover are provided with limiting bosses, and the positions of the limiting bosses correspond to the positions of the sector gears.

[0013] Further, the interior of the upper end cover is provided with a PCB board, one end of the valve rod is provided with a magnetic steel, and the position of the PCB board corresponds to the position of the magnetic steel.

[0014] The plastic composite electronic throttle valve has the following beneficial effects.

[0015] The plastic valve body and the valve plate structure are optimized, and the plastic composite electronic throttle valve has the following beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of a plastic composite electronic throttle valve.

[0017] Figure 2 It is a front structure schematic view of a plastic composite electronic throttle valve.

[0018] Figure 3 It is a front structure schematic view of a plastic composite electronic throttle valve.

[0019] Figure 4It is a structure schematic view of a metal ring and a first reinforcing rib in a plastic composite electronic throttle valve.

[0020] Figure 5 It is a back structure schematic view of a valve plate, a driving sleeve and a second reinforcing rib in a plastic composite electronic throttle valve.

[0021] Figure 6 It is a front structure schematic view of a valve plate and a driving sleeve in a plastic composite electronic throttle valve.

[0022] Figure 7 It is a side structure schematic view of a valve plate and a driving sleeve in a plastic composite electronic throttle valve.

[0023] Figure 8 It is an additional surface structure schematic view of a valve plate and a driving sleeve in a plastic composite electronic throttle valve.

[0024] Figure 9 It is an additional surface structure schematic view of a plastic valve body and a driving assembly in a plastic composite electronic throttle valve.

[0025] In the figure: 1, plastic valve body; 2, upper end cover; 3, valve plate; 4, valve rod; 5, plug-in part; 6, PCB board; 7, magnetic steel; 8, first bearing; 9, pre-embedded inner hole; 10, metal ring; 11, second bearing; 12, torsional spring; 13, shaft clamp spring; 14, plug; 15, through hole; 16, first reinforcing rib; 17, second reinforcing rib; 18, driving sleeve; 19, limiting boss; 20, fan-shaped gear; 21, driving motor; 22, driving gear; 23, double gear set. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0027] The specific implementation of the utility model will be described in detail in combination with specific examples.

[0028] As Figures 1-9 shown in the utility model embodiment, a plastic composite electronic throttle valve comprises a plastic valve body 1, the plastic valve body 1 is provided with a plug-in part 5 on the outside, and the plastic valve body 1 is rotationally connected with a valve rod 4 inside, the valve rod 4 is connected with a valve plate 3 on the outside, the surface of the plastic valve body 1 is connected with an upper end cover 2, and the inside of the plastic valve body 1 and the upper end cover 2 is jointly provided with a driving assembly, and the inside of the plastic valve body 1 is installed with a torsional spring 12.

[0029] The first bearing 8 and the second bearing 11 are respectively arranged at two positions in the plastic valve body 1, and the valve rod 4 is rotatably arranged in the plastic valve body 1 through the first bearing 8 and the second bearing 11, the valve rod 4 is provided with a shaft circlip 13 at a position close to the second bearing 11, and the plastic valve body 1 is provided with a plug 14 at an end away from the upper end cover 2.

[0030] The driving assembly comprises a driving motor 21, the driving motor 21 is arranged in the plastic valve body 1, the driving motor 21 is provided with a driving gear 22 at an output end, a transmission shaft is arranged in the plastic valve body 1, the transmission shaft is provided with a double gear set 23 on an outer side, the valve rod 4 is provided with a sector gear 20 on an outer side, one group of gears in the double gear set 23 is meshed with the driving gear 22, and the other group of gears is meshed with the sector gear 20.

[0031] The upper end cover 2 is provided with a limiting boss 19 at two positions in the upper end cover 2, and the limiting boss 19 is located at a position corresponding to the sector gear 20.

[0032] The upper end cover 2 is provided with a PCB 6 in the upper end cover 2, and the valve rod 4 is provided with a magnetic steel 7 at one end, and the PCB 6 is located at a position corresponding to the magnetic steel 7.

[0033] The above technical features are disclosed in the prior art, wherein the driving motor 21 in the driving assembly drives the driving gear 22 to rotate, the driving gear 22 drives one group of gears in the double gear set 23 to rotate, thereby driving the other group of gears in the double gear set 23 to drive the sector gear 20 to rotate. At the same time, the sector gear 20 drives the valve rod 4 and the magnetic steel 7 to rotate together, thereby driving the valve rod 4 to drive the valve plate 3 to open and close in the valve port of the plastic valve body 1.

[0034] During the rotation of the valve rod 4, the rotation angle of the magnetic steel 7 at one end of the valve rod 4 can be monitored by the PCB 6, so as to automatically control the opening and closing angle of the valve plate 3.

[0035] The two limiting bosses 19 arranged in the upper end cover 2 can effectively control the rotation angle of the sector gear 20, thereby limiting the rotation of the valve plate 3 within the range of 0-90 degrees.

[0036] The main innovative parts of the utility model compared with the prior art are as follows:

[0037] The plastic valve body 1 is provided with a preset embedded hole 9 in the inside, and the preset embedded hole 9 is inlaid with a metal ring 10, the metal ring 10 is provided with a through hole 15 at two positions on the surface, the two through holes 15 are on the same axis, and the metal ring 10 is provided with a first reinforcing rib 16 on the outer side.

[0038] The valve plate 3 is made of composite plastic, and the valve plate 3 is provided with a plurality of second reinforcing ribs 17 on the side surface.

[0039] In an embodiment of the present application, the innovative part of the present application lies in the optimization of the plastic valve body and valve plate structure. First, a preset embedded inner hole 9 is formed in the plastic valve body 1, and a metal ring 10 is embedded therein. The through holes 15 formed on both sides of the surface of the metal ring 10 are on the same axis, which can conveniently embed and install the metal ring 10 with the plastic valve body 1, and has the advantages of simplifying the structure and facilitating the installation. Compared with the relatively complex metal ring structure in the prior art, the present application simplifies the installation process, reduces the process difficulty, and further reduces the production cost. In addition, the first reinforcing rib 16 provided on the outer side of the metal ring 10 enhances the strength and stability of the valve body, and improves the durability and anti-deformation ability of the overall device.

[0040] Compared with the prior art, the valve plate 3 of the present application is made of composite plastic material, rather than traditional metal material. The composite plastic has lighter weight, stronger corrosion resistance and good processability, which not only effectively reduces the weight of the equipment, but also improves the durability and reduces the maintenance cost. At the same time, the second reinforcing rib 17 on the side of the valve plate 3 further improves the structural strength of the valve plate, making it more stable during use and avoiding the corrosion and wear problems that may exist in metal valve plates.

[0041] In the present embodiment, the two sides of the side of the valve plate 3 are provided with a driving sleeve 18, and the inside of the driving sleeve 18 is provided with a rectangular through hole. The outer side of the valve stem 4 is provided with two square protruding columns, and the shape of the square protruding column is matched with the shape of the rectangular through hole.

[0042] The advantage of this design is that through the cooperation of the rectangular through hole and the square protruding column, the precise butt joint of the valve plate and the valve stem is ensured, thereby effectively preventing the abnormal rotation or loosening of the valve plate during work.

[0043] Compared with the traditional screw connection method, the present design realizes more stable connection through the shape cooperation of the protruding column and the through hole, avoids the loosening risk that may be caused by the screw, and also reduces the complexity in the manufacturing and assembly process. Through this simple and effective structure, the stability and reliability of the equipment can be significantly improved, and the maintenance cost is reduced.

[0044] In the present embodiment, the side of the valve plate 3 away from the second reinforcing rib 17 is in an arc structure. The arc surface can effectively reduce the flow resistance of the fluid around the valve plate, thereby improving the flow efficiency of the fluid. This design optimizes the streamline shape of the valve plate, reduces the resistance when the fluid contacts the valve plate, and thus improves the working performance of the equipment. Especially in the application scenarios that require efficient fluid control, the energy efficiency and response speed of the overall system can be significantly improved.

[0045] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A plastic composite electronic throttle valve, comprising a plastic valve body (1), wherein a valve stem (4) is rotatably connected inside the plastic valve body (1), a valve plate (3) is connected to the outer side of the valve stem (4), an upper end cap (2) is connected to the surface of the plastic valve body (1), and a drive assembly is jointly provided inside the plastic valve body (1) and the upper end cap (2), wherein a torsion spring (12) is installed inside the plastic valve body (1), characterized in that, The plastic valve body (1) has a pre-set embedded inner hole (9) inside, and a metal ring (10) is embedded inside the pre-set embedded inner hole (9). Both sides of the surface of the metal ring (10) have through holes (15), and the two through holes (15) are on the same axis. The outer side of the metal ring (10) is provided with a first reinforcing rib (16). The valve plate (3) is made of composite plastic, and the side of the valve plate (3) is provided with several second reinforcing ribs (17).

2. The plastic composite electronic throttle valve according to claim 1, characterized in that, The valve plate (3) has a drive sleeve (18) on both sides, and the drive sleeve (18) has a rectangular through hole inside. The valve stem (4) has two square protrusions on the outside, and the shape of the square protrusions matches the shape of the rectangular through hole.

3. The plastic composite electronic throttle valve according to claim 1, characterized in that, The valve plate (3) has an arc-shaped structure on the side away from the second reinforcing rib (17).

4. The plastic composite electronic throttle valve according to claim 1, characterized in that, The plastic valve body (1) is equipped with a first bearing (8) and a second bearing (11) on both sides inside. The valve stem (4) is rotatably mounted inside the plastic valve body (1) through the first bearing (8) and the second bearing (11). A shaft retainer (13) is installed on the surface of the valve stem (4) near the second bearing (11). A plug (14) is provided on the end of the plastic valve body (1) away from the upper end cover (2).

5. A plastic composite electronic throttle valve according to claim 1, characterized in that, The drive assembly includes a drive motor (21), which is installed inside the plastic valve body (1). A drive gear (22) is installed at the output end of the drive motor (21). A transmission shaft is installed inside the plastic valve body (1), and a double gear set (23) is sleeved on the outside of the transmission shaft. A sector gear (20) is sleeved on the outside of the valve stem (4). One set of gears in the double gear set (23) meshes with the drive gear (22), and the other set of gears meshes with the sector gear (20).

6. A plastic composite electronic throttle valve according to claim 5, characterized in that, The upper end cover (2) is provided with limiting bosses (19) on both sides inside, and the position of the limiting bosses (19) corresponds to the position of the sector gear (20).

7. A plastic composite electronic throttle valve according to claim 1, characterized in that, The upper cover (2) is equipped with a PCB board (6), and a magnet (7) is provided at one end of the valve stem (4). The position of the PCB board (6) corresponds to the position of the magnet (7).

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