Throttle valve easy to assemble

Abstract

The utility model discloses a throttle valve easy to assemble, which comprises a shell, a valve cavity is arranged in the shell, a rotatable valve plate is arranged in the valve cavity, a control groove is arranged in the shell, the control groove is sealed by a cover plate, a rotating shaft is rotatably connected in the control groove, the rotating shaft is connected with the valve plate, and the valve plate is connected with the cover plate. A control mechanism for controlling the angle of the rotating shaft is arranged in the control groove; according to the throttle valve easy to assemble, the sector gear, the rotating shaft, the sleeve and the baffle are integrated and formed through injection molding, the number of parts in the throttle valve easy to assemble is reduced through the design, and compared with a structure that a rotating shaft and a sector gear in a traditional throttle valve are mutually independent and need to be assembled, the throttle valve easy to assemble has the advantages that the number of the parts is reduced, and assembling is easy; the process groove is formed in the shell, the machining precision of the shell is guaranteed through the arrangement of the process groove, air holes are prevented from occurring in the shell during production, and the weight of the shell is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of throttle valves, in particular to a throttle valve which is easy to assemble. Background Art

[0002] The throttle is a device that is linked to the accelerator and controls the amount of air intake in the engine by controlling the opening of the valve plate inside it.

[0003] A rotating shaft connected to a valve plate is generally provided in the throttle valve, a sector gear is generally provided on the rotating shaft, and a motor for controlling the rotation of the sector gear is provided in the throttle valve. As shown in a dual-channel throttle valve for a motorcycle disclosed in application number CN220134066U, the sector gear in the existing throttle valve is generally independent of the rotating shaft. When installing the throttle valve, the staff needs to fix the sector gear and the rotating shaft to each other and then install them. The design of the sector gear and the rotating shaft as separate parts increases the number of parts of the throttle valve and increases the assembly process, which needs to be improved. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a throttle valve that is easy to assemble, so as to solve the problem that the fan-shaped gear and the rotating shaft in the prior throttle valve are independent of each other and the installation is relatively complicated.

[0005] The utility model provides the following technical solution: an easily assembled throttle valve, comprising a shell, a valve cavity is arranged in the shell, a rotatable valve plate is arranged in the valve cavity, a control groove is arranged in the shell, and the control groove is closed by a cover plate, a rotating shaft is rotatably connected in the control groove, the rotating shaft is connected to the valve plate, and a control mechanism for controlling the angle of the rotating shaft is arranged in the control groove;

[0006] The control mechanism comprises a motor arranged in the housing, an output shaft extending from the motor is provided with an output gear, a passive shaft is rotatably connected in the control slot, and a double-layer gear is rotatably connected on the passive shaft, a sector gear is arranged outside the rotating shaft, and the output gear and the sector gear are respectively connected to the upper and lower layers of the double-layer gear;

[0007] A sleeve is provided on the lower side of the sector gear, and a torsion spring is provided on the sleeve outer cover. A baffle is also provided on the lower side of the sector gear, a section of the torsion spring abuts against the baffle, and the other end of the torsion spring is fixed in the control groove;

[0008] The sector gear, the rotating shaft, the sleeve and the baffle are integrated and injection molded.

[0009] Preferably, a boss is integrally formed on the upper side surface of the sector gear, a magnet is disposed in the boss, and a Hall element for sensing the magnet is disposed in the control slot.

[0010] Preferably, with the axis of the boss as the center, a plurality of ring plates arranged at equal angles are integrally formed on the upper side surface of the boss, and the magnet maintains a relative positional relationship with the ring plates through friction.

[0011] Preferably, the magnet is fixed in the boss by heat riveting.

[0012] Preferably, two of the valve chambers and two of the valve sheets are provided, and the rotating shaft is connected to the two valve sheets.

[0013] Preferably, a process groove is provided in the outer shell, the process groove is provided between the two valve chambers, and the process groove is penetrated by the rotating shaft, a closing cover for closing the process groove is fixed on the outer shell, and a sealing rubber ring is also provided on the outer shell and wrapped around the process groove, and the sealing rubber ring is pressed by the closing cover.

[0014] Preferably, a temperature and pressure sensor for sensing the temperature and pressure in the valve cavity is arranged in the housing.

[0015] Preferably, it further comprises a fuel injector and a fuel rail assembly, wherein the fuel injector is fixed on the housing, and the oil outlet pipe in the fuel injector is connected to the two valve chambers.

[0016] The utility model provides a throttle valve which is easy to assemble and has the following beneficial effects:

[0017] The fan-shaped gear, rotating shaft, sleeve and baffle in the utility model are integrated and injection molded, and this design reduces the number of parts in the throttle valve which is easy to assemble. Compared with the structure in which the rotating shaft and fan-shaped gear in the traditional throttle valve are independent of each other and need to be assembled, the utility model reduces the number of parts and is easy to assemble;

[0018] A process groove is provided in the shell, which ensures the processing accuracy of the shell, avoids the appearance of pores in the shell during production, and reduces the weight of the shell;

[0019] The utility model has a compact structure and integrates the functions of temperature and pressure signal detection and fuel injection control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0021] Figure 2 yes Figure 1 Schematic diagram of the appearance when the cover plate and the closing cover are removed;

[0022] Figure 3 This is a schematic diagram of the appearance of the utility model from another perspective;

[0023] Figure 4 It is a schematic diagram of the appearance of the inner sector gear and the rotating shaft of the utility model.

[0024] In the figure:

[0025] 11. Outer shell; 12. Valve chamber; 13. Valve plate; 14. Control groove; 15. Rotating shaft; 16. Motor; 17. Output gear; 18. Double-layer gear; 19. Fan gear; 20. Sleeve; 21. Torsion spring; 22. Baffle; 23. Boss; 24. Magnet; 25. Ring plate; 26. Process groove; 27. Closing cover; 28. Sealing rubber ring; 29. ​​Temperature and pressure sensor; 30. Injector. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Reference Figure 1-Figure 4 According to an embodiment of the utility model, an easily assembled throttle valve includes a shell 11, a valve cavity 12 is arranged in the shell 11, and a rotatable valve plate 13 is arranged in the valve cavity 12. In this embodiment, two valve cavities 12 and two valve plates 13 are arranged, a control groove 14 is arranged in the shell 11, and the control groove 14 is closed by a cover plate 31, a rotating shaft 15 is rotatably connected in the control groove 14, the rotating shaft 15 is connected to the two valve plates 13, and a control mechanism for controlling the angle of the rotating shaft 15 is arranged in the control groove 14, when the rotating shaft 15 rotates, the valve plate 13 will rotate, thereby controlling the intake amount in the valve cavity 12.

[0031] In this embodiment, the control mechanism includes a motor 16 arranged in the housing 11, and an output gear 17 is installed on the output shaft extending from the motor 16. A passive shaft is rotatably connected in the control slot 14, and a double-layer gear 18 is connected to the passive shaft. A fan gear 19 is provided outside the rotating shaft 15, and the output gear 17 and the fan gear 19 are respectively connected to the upper and lower layers of the double-layer gear 18, that is, the motor 16 drives the output gear 17 to rotate, and then drives the fan gear 19 to rotate through the double-layer gear 18. At this time, the rotating shaft 15 rotates and controls the opening of the valve plate 13. The rotating shaft 15 is driven to rotate by a two-stage reduction transmission, which is beneficial to precise control.

[0032] In addition, a sleeve 20 is provided on the lower side of the sector gear 19, and a torsion spring 21 is arranged on the sleeve 20. A baffle 22 is also provided on the lower side of the sector gear 19. One end of the torsion spring 21 abuts against the baffle 22, and the other end of the torsion spring 21 is fixed in the control groove 14. The setting of the torsion spring 21 enables the rotating shaft 15 to rotate automatically and the valve plate 13 to close automatically.

[0033] In addition, the sector gear 19, the rotating shaft 15, the sleeve 20 and the baffle 22 are integrated and injection molded. This design reduces the number of parts in the easy-to-assemble throttle valve. Compared with the structure in which the rotating shaft and the sector gear in the traditional throttle valve are independent of each other and need to be assembled, the easy-to-assemble throttle valve reduces the number of parts and is easy to assemble.

[0034] In addition, a boss 23 is integrally formed on the upper side of the sector gear 19, a magnet 24 is provided in the boss 23, and a Hall element for sensing the magnet 24 is provided in the control slot 14. The Hall element can sense the angles of the rotating shaft 15 and the valve plate 13 according to the magnet 24, and transmit an electrical signal of the angle of the valve plate 13.

[0035] In order to ensure that the magnet 24 is installed firmly, a plurality of ring plates 25 arranged at equal angles are integrally formed on the upper side of the boss 23 with the axis of the boss 23 as the center. The magnet 24 maintains a relative position relationship with the ring plates 25 through friction, and the magnet 24 is also fixed in the boss 23 by hot riveting.

[0036] In the second embodiment of the throttle valve that is easy to assemble, a process groove 26 is provided in the outer shell 11, and the process groove 26 is provided between the two valve chambers 12. The process groove 26 is penetrated by the rotating shaft 15. A closing cover 27 for closing the process groove 26 is fixedly provided on the outer shell 11. A sealing rubber ring 28 is also provided on the outer shell 11 and wrapped around the process groove 26. The sealing rubber ring 28 is pressed by the closing cover 27.

[0037] The provision of the process groove 26 ensures the processing quality of the shell 11 , improves the processing accuracy, avoids the appearance of air holes in the shell 11 during production, and reduces the weight of the shell 11 .

[0038] In addition, the housing 11 is provided with a temperature and pressure sensor 29 for sensing the temperature and pressure in the valve chamber 12, as well as an injector 30 and an oil rail assembly for spraying oil into the valve chamber 12. The injector 30 is fixed on the housing 11, and the oil outlet pipe in the injector 30 is connected to the two valve chambers 12.

[0039] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A throttle valve that is easy to assemble, comprising a housing (11), a valve chamber (12) being arranged in the housing (11), and a rotatable valve plate (13) being arranged in the valve chamber (12), Features: A control groove (14) is provided in the housing (11), and the control groove (14) is closed by a cover plate (31); a rotating shaft (15) is rotatably connected in the control groove (14), the rotating shaft (15) is connected to the valve plate (13), and a control mechanism for controlling the angle of the rotating shaft (15) is provided in the control groove (14); The control mechanism comprises a motor (16) arranged in the housing (11); an output shaft extending from the motor (16) is provided with an output gear (17); a passive shaft is rotatably connected in the control slot (14); a double-layer gear (18) is rotatably connected on the passive shaft; a sector gear (19) is arranged outside the rotating shaft (15); the output gear (17) and the sector gear (19) are respectively connected to the upper and lower layers of the double-layer gear (18); A sleeve (20) is provided on the lower side of the sector gear (19), and a torsion spring (21) is disposed on the sleeve (20). A baffle (22) is also provided on the lower side of the sector gear (19), a section of the torsion spring (21) abuts against the baffle (22), and the other end of the torsion spring (21) is fixed in the control groove (14); The sector gear (19), the rotating shaft (15), the sleeve (20) and the baffle (22) are integrally formed and injection molded.

2. A throttle valve that is easy to assemble according to claim 1, Features: A boss (23) is integrally formed on the upper side of the sector gear (19), a magnet (24) is arranged in the boss (23), and a Hall element for sensing the magnet (24) is arranged in the control slot (14).

3. An easily assembled throttle valve according to claim 2, Features: With the axis of the boss (23) as the center, a plurality of ring plates (25) arranged at equal angles are integrally formed on the upper side surface of the boss (23), and the magnet (24) maintains a relative positional relationship with the ring plate (25) through friction.

4. A throttle valve that is easy to assemble according to claim 3, Features: The magnet (24) is fixed in the boss (23) by means of heat riveting.

5. An easily assembled throttle valve according to claim 1, Features: Two of the valve chambers (12) and two of the valve sheets (13) are provided, and the rotating shaft (15) is connected to the two valve sheets (13).

6. An easily assembled throttle valve according to claim 5, Features: A process groove (26) is provided in the outer shell (11), and the process groove (26) is provided between the two valve chambers (12). The process groove (26) is penetrated by the rotating shaft (15). A closing cover (27) for closing the process groove (26) is fixedly provided on the outer shell (11). A sealing rubber ring (28) is also provided on the outer shell (11) and is wound around the process groove (26). The sealing rubber ring (28) is pressed by the closing cover (27).

7. An easily assembled throttle valve according to claim 6, Features: A temperature and pressure sensor (29) for sensing the temperature and pressure in the valve chamber (12) is arranged in the housing (11).

8. An easily assembled throttle valve according to claim 1, Features: It also includes a fuel injector (30) and a fuel rail assembly, wherein the fuel injector (30) is fixed to the housing (11), and an oil outlet pipe in the fuel injector (30) is connected to the two valve chambers (12).

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