Throttle valve assembly with throttle valve piece convenient to disassemble and assemble
By designing a limiting shaft and knob structure, the problem of difficult positioning of traditional throttle valve discs is solved, enabling rapid installation and precise control, improving assembly efficiency and reliability, and making it suitable for throttle valve systems that require frequent maintenance and are produced in large quantities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JINGJING JIYE LOCOMOTIVE PARTS CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional throttle valve structures lack positioning mechanisms, requiring manual alignment of the screw holes during valve disc installation, resulting in low assembly efficiency and cumbersome operation.
It adopts a limiting shaft and matching structure, and achieves rapid positioning by inserting the limiting shaft into the square hole of the valve disc. Combined with the knob structure and motor drive system, it achieves precise control.
It improves assembly consistency and reliability, simplifies installation and disassembly operations, is suitable for frequent maintenance and mass production, and enhances the stability and adaptability of the throttle body.
Smart Images

Figure CN224149689U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of throttle body technology, and in particular to a throttle body assembly that facilitates the disassembly and assembly of the throttle body plate. Background Technology
[0002] The throttle valve is a key component in the intake system of a car engine. It is mainly used to regulate the flow of air into the engine cylinders, thereby controlling the engine's power output and fuel supply.
[0003] It is usually installed in the intake manifold and its opening angle is controlled by the accelerator pedal or electronic signals to precisely match the amount of air required for the engine to work.
[0004] The working state of the throttle valve directly affects engine speed, fuel economy, emissions levels, and driving response performance.
[0005] In traditional throttle valve structures, the throttle disc, or valve plate, is usually fixed directly to the rotating shaft inside the throttle assembly body by screws. The body is mostly a tubular structure. However, since the valve plate itself lacks a positioning structure for precise alignment of the installation position, in actual installation, installers often need to manually adjust the angle of the valve plate on the rotating shaft to align with the screw holes, resulting in low assembly efficiency and cumbersome operation. Utility Model Content
[0006] The purpose of this invention is to solve the shortcomings of the existing technology, such as the valve disc lacking a positioning structure, requiring manual alignment of the screw holes during installation, resulting in low assembly efficiency and cumbersome operation.
[0007] To achieve the above objectives, this utility model adopts the following technical solution: a throttle assembly for easy disassembly and assembly of the throttle plate, comprising a body and further comprising: a valve disc, wherein the valve disc is disposed within a cylindrical channel of the body and the valve disc movably blocks the channel; a limiting shaft, wherein the limiting shaft is inserted and installed on one side of the body, the limiting shaft passes through a square hole in the body into which the valve disc is inserted, and the limiting shaft and the valve disc are fixed by screws to achieve a quick installation action; in use, the valve disc is quickly positioned in the middle of the body by inserting two fingers through the through holes on both sides of the body, and the limiting shaft is inserted through the valve disc to achieve the positioning action, thereby the screw can quickly pass through the valve disc and be screwed to the shaft.
[0008] In at least some embodiments, the body includes a housing, and the limiting shaft includes a knob with a slot for inserting a screwdriver bit.
[0009] In at least some embodiments, a screw is fixedly connected to the side of the knob away from the slot, the screw is screwed to the housing, a square rod is fixedly connected to one side of the screw, the direction of the screw hole of the square rod is fixed parallel to the transmission direction of the transmission pipe inside the housing, and the screw passes through the valve disc and is screwed to the screw hole.
[0010] In at least some embodiments, the outer surface of the housing is also integrally formed with several mounting seats, which are used to connect and install with automotive parts by means of bolts.
[0011] In at least some embodiments, a motor is fixedly mounted on the bottom of the housing, the motor is electrically connected to a charging base fixed to the front of the housing, and the output end of the motor is fixedly connected to the input end of a miniature gearbox fixed to one side of the housing.
[0012] In at least some embodiments, the output end of the micro gearbox is fixedly connected to a first rotating wheel rotatably mounted inside the housing. The first rotating wheel is belt driven by a second rotating wheel rotatably mounted on the lower part of the housing. A universal joint fixed to one side of the second rotating wheel has a socket for inserting the square rod. In use, the rotation angle of the valve disc is controlled by the motor.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] In this utility model, the limiting shaft and matching structure effectively solve the problems of difficult positioning, slow assembly and low precision of traditional throttle valve discs;
[0015] The new structure enables quick insertion and positioning between the valve disc and the engine body, avoiding air leakage or unstable air intake caused by hole position errors, and significantly improving assembly consistency and throttle operation reliability.
[0016] In addition, the knob structure and tool slot make manual installation and disassembly operations more intuitive and quick, especially suitable for frequent maintenance or mass production scenarios. In terms of electronic drive structure, the linkage transmission mechanism of motor, gearbox, synchronous pulley and universal joint enables the throttle to have precise and controllable opening and closing capabilities, which can be matched with the engine ECU system to build an electronic throttle system.
[0017] With its compact structure, high integration, and convenient installation, it not only improves production and assembly efficiency but also enhances the stability and adaptability of the throttle body in different operating environments, making it highly valuable for industrial promotion and practical application. Attached Figure Description
[0018] Figure 1 This utility model provides a three-dimensional structural diagram of a throttle assembly that facilitates the disassembly and assembly of the throttle plate.
[0019] Figure 2 This utility model provides a three-dimensional structural diagram of a throttle assembly that facilitates the disassembly and assembly of the throttle valve plate from another angle.
[0020] Figure 3 This utility model provides a three-dimensional structural diagram of the limiting shaft in a throttle assembly that facilitates the disassembly and assembly of the throttle plate;
[0021] Figure 4 This utility model presents a three-dimensional structural diagram of the universal joint in a throttle assembly that facilitates the disassembly and assembly of the throttle valve plate.
[0022] Legend: 1. Body; 2. Valve disc; 3. Limiting shaft; 4. Screw; 5. Charging base;
[0023] 101. Housing; 102. Transmission pipe; 103. Mounting base; 104. Motor; 105. Miniature gearbox; 106. Socket; 107. First roller; 108. Second roller; 109. Universal joint;
[0024] 301. Knob; 302. Screw; 303. Square rod; 304. Screw hole. Detailed Implementation
[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0027] Implementation examples, based on Figures 1-4 As shown in the figure, the present invention provides a throttle assembly that facilitates the disassembly and assembly of the throttle plate. Through the optimization of the traditional throttle assembly structure, the main improvement is the setting of a limiting shaft 3 structure that facilitates positioning and installation, and the matching positioning hole design, which significantly improves the installation accuracy and assembly efficiency of the valve disc 2.
[0028] Specifically, it includes the body 1, and also includes: a valve disc 2, which is set in the cylindrical channel of the body 1 and can be used to block the channel; a limiting shaft 3, which is inserted and installed on one side of the body 1, passes through the square hole of the body 1 to insert the valve disc 2, and is fixed by screws 4 to achieve a quick installation action; in use, the valve disc 2 is quickly positioned in the middle of the body 1 by inserting two fingers through the through holes on both sides of the body 1, and the positioning action is achieved by inserting the limiting shaft 3 through the valve disc 2, so that the screws 4 can quickly pass through the valve disc 2 and be screwed to the shaft.
[0029] The throttle assembly includes an integrally formed cylindrical body 1. The body 1 has a through channel for air circulation. The valve disc 2 is movably disposed in the channel and is used to control the opening and closing of the channel. The valve disc 2 has a square hole structure for cooperating with the limiting shaft 3 for installation. The limiting shaft 3 can be inserted from one side of the body 1, pass through the body 1 and precisely insert into the square hole of the valve disc 2 to achieve rapid alignment.
[0030] In actual operation, the assembler can use two fingers to insert the valve disc 2 into the middle preset position inside the machine body 1 through the through holes on both sides of the machine body 1, so that it is roughly in the working center. Then, the limiting shaft 3 is inserted from one end of the machine body 1. After passing through the wall of the machine body 1, the shaft is directly inserted into the square hole of the valve disc 2 to achieve the initial precise positioning of the valve disc 2 and the rotating shaft.
[0031] At this point, the installer only needs to use screws 4 to connect and tighten the limiting shaft 3 to the valve disc 2 to complete the entire throttle plate installation process. There is no need to repeatedly adjust the angle or compare the hole positions, which effectively avoids intake error or air leakage caused by inaccurate installation.
[0032] This structural design not only improves the consistency and reliability of throttle body assembly, but also greatly simplifies maintenance and replacement operations, making it particularly suitable for engine systems with high batch assembly and maintenance frequency.
[0033] In this embodiment, the body 1 includes a housing 101, and the limiting shaft 3 includes a knob 301. The knob 301 has a slot for inserting a screwdriver bit. A screw 302 is fixedly connected to the side of the knob 301 away from the slot. The screw 302 is screwed to the housing 101. A square rod 303 is fixedly connected to one side of the screw 302. The screw hole 304 of the square rod 303 is fixed in the direction of the transmission pipe 102 inside the housing 101, parallel to the transmission direction. A screw 4 passes through the valve disc 2 and is screwed to the screw hole 304. Several mounting seats 103 are integrally formed on the outside of the housing 101. In use, the mounting seats 103 are connected and installed with automotive parts by bolts.
[0034] The throttle body 1 is composed of a housing 101. A knob 301 is provided in the structure of the limiting shaft 3. The top of the knob 301 is provided with a slot for inserting a screwdriver bit, which is convenient for manual tool operation during installation. The bottom of the knob 301 is fixedly connected to the screw 302. The screw 302 is screwed into the inside of the housing 101 to achieve a stable connection between the limiting shaft 3 and the body 1.
[0035] The other end of the screw 302 is provided with a fixedly connected square rod 303. The screw hole 304 of the square rod 303 is parallel to the airflow transmission direction inside the housing 101, which facilitates the installation of screws 4. The screw hole 304 provided on the valve disc 2 allows screws 4 to pass through and is screwed into the screw hole 304 on the square rod 303 to form a stable mechanical connection relationship, so as to achieve quick installation and accurate positioning.
[0036] Meanwhile, the outer surface of the housing 101 is also integrally formed with several mounting bases 103, which facilitates the reliable docking and fixed installation of the assembly structure with other automotive components through bolts, improves the structural versatility and vehicle assembly efficiency, ensures that the throttle valve maintains a precise opening and closing angle and positional stability during operation, and further optimizes engine intake control.
[0037] In this embodiment, a motor 104 is fixedly installed at the bottom of the housing 101. The motor 104 is electrically connected to the charging base 5 fixed at the front of the housing 101. The output end of the motor 104 is fixedly connected to the input end of the micro gearbox 105 fixed on one side of the housing 101. The output end of the micro gearbox 105 is fixedly connected to the first rotating wheel 107 rotatably installed inside the housing 101. The first rotating wheel 107 is belt driven by the second rotating wheel 108 rotatably installed at the lower part of the housing 101. A universal joint 109 fixed on one side of the second rotating wheel 108 has a socket 106 for inserting the square rod 303. In use, the rotation angle of the valve disc 2 is controlled by the motor 104.
[0038] A motor 104 is fixedly installed at the bottom of the housing 101 and is powered by a charging base 5 provided at the front of the housing 101 through an electrical connection, forming a controllable drive system.
[0039] The output end of the motor 104 is connected to the input end of the miniature gearbox 105 on one side of the housing 101 via a connecting shaft. The miniature gearbox 105 reduces the output speed of the motor 104 and increases the torque. The output end is connected to the first rotating wheel 107 installed inside the housing 101 to form a primary rotating mechanism.
[0040] The first rotating wheel 107 is connected to the second rotating wheel 108 located at the lower part of the housing 101 via a transmission belt to achieve synchronous transmission output. A universal joint 109 structure is fixed on one side of the second rotating wheel 108. The universal joint 109 is provided with a socket 106 for inserting the square rod 303 part of the previously mentioned limiting shaft 3, thereby indirectly transmitting the driving action of the motor 104 to the valve disc 2 and achieving precise control of the opening and closing angle of the valve disc 2.
[0041] Through this structural design, the throttle valve not only achieves mechanical limiting and quick installation and removal, but also has electronic control drive function, which is conducive to realizing dynamic and precise control of intake air volume by the engine's electronic throttle system, thereby improving the vehicle's responsiveness and fuel economy.
[0042] The working principle of this utility model is as follows: by optimizing the traditional throttle plate installation structure, the positioning and installation are integrated.
[0043] The main body 1 adopts a one-piece cylindrical structure with an internal airflow channel. The valve disc 2 is movably mounted within the channel to control the airflow. The valve disc 2 has a square hole, which is precisely positioned by inserting a limiting shaft 3. The limiting shaft 3 is inserted from one end of the main body 1, passes through the main body 1, and is inserted into the square hole of the valve disc 2. The valve disc 2 can be roughly fixed in the center of the main body 1 by the operator's fingers to achieve the desired positioning.
[0044] The limiting shaft 3 completes initial positioning by engaging with the square hole. The screw 4 then passes through the valve disc 2 and is screwed into the screw hole 304 of the square shaft 303 to complete the fastening installation. In addition, the limiting shaft 3 is equipped with a knob 301 with a slot for screwdriver operation, enabling convenient manual adjustment. To improve the level of drive automation, the system also includes a motor 104, a gearbox, a transmission wheel, and a universal joint 109 structure. The motor 104 drives the valve disc 2 to rotate via belt drive and universal joint 109 through the speed change mechanism, thereby controlling the throttle opening and precisely adjusting the intake air volume.
[0045] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.
Claims
1. A throttle valve assembly in which a throttle valve plate is easily disassembled, comprising a housing (1), characterized in that, Also includes: Valve disc (2), the valve disc (2) is disposed in the cylindrical channel of the machine body (1), and the valve disc (2) can be moved to block the channel; The limiting shaft (3) is inserted and installed on one side of the machine body (1). The limiting shaft (3) passes through the square hole of the machine body (1) and is inserted into the valve disc (2). The limiting shaft (3) and the valve disc (2) are fixed by screws (4) to achieve a quick installation action. In use, the valve disc (2) is quickly positioned in the middle of the body (1) by inserting two fingers through the through holes on both sides of the body (1), and the positioning action is achieved by inserting the limiting shaft (3) through the valve disc (2), so that the screw (4) can quickly pass through the valve disc (2) and be screwed to the shaft; The body (1) includes a housing (101), and the limiting shaft (3) includes a knob (301) with a slot for inserting a screwdriver bit; A screw (302) is fixedly connected to the side of the knob (301) away from the slot. The screw (302) is screwed to the housing (101). A square rod (303) is fixedly connected to one side of the screw (302). The direction of the screw hole (304) of the square rod (303) is fixed parallel to the transmission direction of the transmission pipe (102) inside the housing (101). The screw (4) passes through the valve disc (2) and is screwed to the screw hole (304).
2. The throttle assembly of claim 1, wherein: The outer surface of the housing (101) is also integrally formed with several mounting seats (103), which are used to connect and install with automotive parts by means of bolts to the mounting seats (103).
3. The throttle assembly of claim 1, wherein: A motor (104) is fixedly installed on the bottom of the housing (101). The motor (104) is electrically connected to a charging base (5) fixed at the front of the housing (101). The output end of the motor (104) is fixedly connected to the input end of a micro gearbox (105) fixed on one side of the housing (101).
4. The throttle assembly of claim 3, wherein: The output end of the micro gearbox (105) is fixedly connected to a first rotating wheel (107) rotatably mounted inside the housing (101). The first rotating wheel (107) is belt driven by a second rotating wheel (108) rotatably mounted on the lower part of the housing (101). A universal joint (109) fixed on one side of the second rotating wheel (108) has a socket (106) for inserting the square rod (303). In use, the rotation angle of the valve disc (2) is controlled by the motor (104).