A speed regulating valve
Patent Information
- Application Number
- CN202522244434.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-23
AI Technical Summary
这种连接方式虽然能够在一定程度上保证二者连接的稳固性，但在实际生产组装过程中，增加了生产操作的复杂性
本申请提供的调速阀，包括具有气流通道和节流槽的安装座，节流槽的延伸方向与气流通道的延伸方向相垂直，节流槽内设置有阀芯，阀芯包括自下至上连接的节流套和节流体，节流体具有部分容置节流套的环形槽，节流体上连接有节流柱，通过节流柱控制气流通道的气路开闭。节流体通过自身具有的环形槽部分容置节流套，替代了传统的铆合连接方式。在生产组装过程中，无需使用专门的铆合设备和进行复杂的铆合操作，只需将节流套部分放入节流体的环形槽内即可完成二者的初步定位和连接，大大简化了生产组装流程。同时，减少了对专业铆合操作人员的需求，降低了人力成本和设备投入成本，进而有效降低了调速阀的整体生产成本，提高了生产效率，更有利于实现大规模批量生产。
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Figure CN224786490U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of speed control valve technology, and more specifically, to a speed control valve. Background Technology
[0002] In the field of fluid transmission and control, speed control valves, as key components for achieving precise control of fluid flow, are widely used in pneumatic, hydraulic systems, and various automated equipment. Their performance directly affects the operational stability, response speed, and control accuracy of the entire system. Currently, commonly available speed control valves typically include a mounting base with an inlet channel, a throttling structure, and an outlet channel. The throttling structure adjusts the flow cross-section of the fluid, thereby controlling the fluid velocity to meet the differentiated fluid flow requirements of equipment under various operating conditions.
[0003] In existing speed control valve designs, to achieve the throttling function, a throttling sleeve and a throttling fluid are often installed within the throttling groove as two core mating components. These two components work together to connect the intake and exhaust channels and provide the basic structural support for subsequent flow rate regulation. However, in current mainstream technologies, the connection between the throttling sleeve and the throttling fluid is generally achieved through riveting. While this connection method can ensure a certain degree of stability, it increases the complexity of production operations. Furthermore, the riveting process requires high operational precision; deviations during riveting may affect the fitting accuracy of the throttling sleeve and the throttling fluid. Utility Model Content
[0004] The purpose of this application is to provide a speed control valve that improves the ease of assembly.
[0005] The embodiments of this application are implemented as follows: This application provides a speed control valve, including a mounting base with an airflow channel and a throttling groove. The extension direction of the throttling groove is perpendicular to the extension direction of the airflow channel. A valve core is disposed in the throttling groove. The valve core includes a throttling sleeve and a throttling fluid connected from bottom to top. The throttling fluid has an annular groove that partially accommodates the throttling sleeve. A throttling column is connected to the throttling fluid, and the opening and closing of the air passage of the airflow channel is controlled by the throttling column.
[0006] Alternatively, as one possible implementation, the throttling sleeve has a radially through-hole, and the throttling post is inserted into the throttling portion of the hole.
[0007] Optionally, as an implementable method, the sidewall of the socket is provided with an air inlet and an air outlet that connect the airflow channel and the socket. The air inlet and the air outlet are located on both sides of the throttling section, and the airflow channel, the air inlet, the socket and the air outlet form a first ventilation path.
[0008] Optionally, as an implementable method, the airflow channel includes an air inlet channel and an air outlet channel located on both sides of the throttling groove, the air inlet channel being connected to the air inlet hole, and the air outlet channel being connected to the air outlet hole.
[0009] Optionally, as an implementable method, the space between the airflow channel and the throttling groove and the throttling sleeve forms a second ventilation path, and a rubber isolation ring is fitted on the throttling sleeve to block the second ventilation path, the rubber isolation ring being located between the air inlet and the air outlet.
[0010] Optionally, as an implementable method, the sidewall of the throttling groove is provided with a support surface, and the rubber isolation ring has a sleeve portion that engages with the throttling sleeve and a flange that abuts against the support surface.
[0011] Alternatively, as an implementable method, a groove is provided between the socket and the flange.
[0012] Optionally, as an implementable method, the bottom of the throttling groove is provided with a positioning groove, and the throttling sleeve is limited and disposed within the positioning groove.
[0013] Optionally, as an implementable method, the outer wall of the throttling fluid is provided with a locking protrusion, and the inner wall of the throttling groove is provided with a locking groove that engages with the locking protrusion.
[0014] Optionally, as an implementable method, a first sealing element is provided between the throttling sleeve and the inner wall of the throttling groove, and a second sealing element is provided between the inner wall of the throttling fluid and the throttling column.
[0015] The beneficial effects of the embodiments of this application include: The speed control valve provided in this application includes a mounting base with an airflow channel and a throttling groove. The extension direction of the throttling groove is perpendicular to the extension direction of the airflow channel. A valve core is disposed within the throttling groove. The valve core includes a throttling sleeve and a throttling fluid connected from bottom to top. The throttling fluid has an annular groove that partially accommodates the throttling sleeve. A throttling column is connected to the throttling fluid, controlling the opening and closing of the airflow channel through the throttling column. The throttling fluid partially accommodates the throttling sleeve through its own annular groove, replacing the traditional riveting connection method. During the production and assembly process, there is no need to use specialized riveting equipment or perform complex riveting operations. The initial positioning and connection of the two can be completed simply by placing the throttling sleeve part into the annular groove of the throttling fluid, greatly simplifying the production and assembly process. At the same time, it reduces the need for professional riveting operators, lowers labor costs and equipment investment costs, thereby effectively reducing the overall production cost of the speed control valve, improving production efficiency, and facilitating large-scale mass production. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of the speed control valve provided in the embodiments of this application; Figure 2 This is a schematic diagram of the valve core structure in the speed control valve provided in the embodiments of this application; Figure 3 This is a schematic diagram of the throttling sleeve in the speed control valve provided in the embodiment of this application.
[0018] Icons: 100-Speed control valve; 110-Mounting base; 111-Airflow passage; 112-Throttle groove; 113-Positioning groove; 120-Valve core; 121-Throttle sleeve; 1211-Socket; 1212-Air inlet; 1213-Air outlet; 122-Throttle element; 123-Throttle column; 124-Rubber isolation ring; 1241-Sleeve part; 1242-Flanged edge; 1243-Groove. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0021] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0023] Please refer to Figure 1 , Figure 2 and Figure 3 This embodiment provides a speed control valve 100, including a mounting base 110 having an airflow channel 111 and a throttling groove 112. The extension direction of the throttling groove 112 is perpendicular to the extension direction of the airflow channel 111. A valve core 120 is disposed in the throttling groove 112. The valve core 120 includes a throttling sleeve 121 and a throttling element 122 connected from bottom to top. The throttling element 122 has an annular groove that partially accommodates the throttling sleeve 121. A throttling column 123 is connected to the throttling element 122, and the opening and closing of the air passage 111 is controlled by the throttling column 123.
[0024] In this speed control valve 100, the airflow channel 111 of the mounting base 110 is used for fluid flow, providing a channel for fluid transmission throughout the speed control valve 100. The throttling groove 112 is set perpendicular to the airflow channel 111, providing space for the installation and movement of the valve core 120, ensuring that the valve core 120 can regulate the fluid flow rate of the airflow channel 111 at a suitable position. The valve core 120 consists of a throttling sleeve 121 and a throttling fluid 122, which are connected from bottom to top. The annular groove of the throttling fluid 122 accommodates the throttling sleeve 121. This structural design changes the traditional riveting connection method. The connection between the throttling sleeve 121 and the throttling fluid 122 is achieved through the accommodating fit of the annular groove. During assembly, only the throttling sleeve 121 needs to be partially placed into the annular groove of the throttling fluid 122 to complete the initial positioning and connection. The operation is simple and convenient, without the need for complex riveting processes and equipment.
[0025] The throttling column 123 connected to the throttling fluid 122 is a key component for controlling the opening and closing of the air passage. When it is necessary to open the airflow passage 111, the position of the throttling column 123 is adjusted so that it no longer blocks the airflow passage 111, allowing the fluid to pass smoothly through the airflow passage 111. When it is necessary to close the airflow passage 111, the throttling column 123 is adjusted to block the airflow passage 111, thereby preventing fluid flow. At the same time, by adjusting the position of the throttling column 123 within the airflow passage 111, the cross-sectional area of the airflow passage 111 can also be changed, thereby achieving precise regulation of the fluid flow rate and meeting the fluid flow requirements of the equipment under different operating conditions.
[0026] The speed control valve 100 provided in this application includes a mounting base 110 having an airflow channel 111 and a throttling groove 112. The extension direction of the throttling groove 112 is perpendicular to the extension direction of the airflow channel 111. A valve core 120 is disposed within the throttling groove 112. The valve core 120 includes a throttling sleeve 121 and a throttling element 122 connected from bottom to top. The throttling element 122 has an annular groove that partially accommodates the throttling sleeve 121. A throttling column 123 is connected to the throttling element 122, and the opening and closing of the air passage 111 is controlled by the throttling column 123. The throttling element 122 partially accommodates the throttling sleeve 121 through its own annular groove, replacing the traditional riveting connection method. During the production and assembly process, there is no need to use special riveting equipment or perform complex riveting operations. Only the throttling sleeve 121 needs to be partially placed into the annular groove of the throttling element 122 to complete the initial positioning and connection of the two, greatly simplifying the production and assembly process. At the same time, it reduces the need for professional riveting operators, lowers labor and equipment investment costs, thereby effectively reducing the overall production cost of speed control valve 100, improving production efficiency, and making it more conducive to large-scale mass production.
[0027] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the throttling sleeve 121 has a radially through-hole 1211, and the throttling post 123 is inserted into the throttling part of the hole 1211.
[0028] Specifically, the throttling sleeve 121 has a radially extending insertion hole 1211 penetrating its sidewall. The insertion hole 1211 contains a throttling section with a specific cross-sectional size (such as a stepped or conical structure with a reduced orifice diameter). One end of the throttling column 123 is inserted into the insertion hole 1211, forming a tight fit with the throttling section. When the throttling column 123 moves axially within the insertion hole 1211, its relative position to the throttling section changes; for example, as the insertion depth of the throttling column 123 increases, the effective flow cross-section of the throttling section decreases; conversely, as the insertion depth decreases, the effective flow cross-section increases. After the fluid enters the throttling sleeve 121, it must pass through the gap between the throttling section of the insertion hole 1211 and the throttling column 123. By adjusting the insertion depth of the throttling column 123, the size of the flow cross-section of the throttling section can be precisely controlled, thereby achieving fine control of the fluid flow rate.
[0029] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the side wall of the insertion hole 1211 is provided with an air inlet 1212 and an air outlet 1213 that connect the airflow channel 111 and the insertion hole 1211. The air inlet 1212 and the air outlet 1213 are located on both sides of the throttling section. The airflow channel 111, the air inlet 1212, the insertion hole 1211 and the air outlet 1213 form the first ventilation path.
[0030] Specifically, an air inlet 1212 and an air outlet 1213 are respectively opened on the side wall of the insertion hole 1211 of the throttling sleeve 121. The air inlet 1212 is located on the upstream side of the throttling part, with one end connected to the airflow channel 111 of the mounting base 110 and the other end connected to the inside of the insertion hole 1211; the air outlet 1213 is located on the downstream side of the throttling part, with one end also connected to the airflow channel 111 and the other end connected to the inside of the insertion hole 1211. Through this design, the fluid flow path is clearly defined as "airflow channel 111 → air inlet 1212 → insertion hole 1211 (through the gap between the throttling part and the throttling column 123) → air outlet 1213 → airflow channel 111", that is, the "first ventilation path".
[0031] Fluid enters through the airflow channel 111 of the mounting base 110, passes through the air inlet 1212 into the upstream region of the insertion hole 1211, then flows through the fitting gap between the throttling section and the throttling column 123 (completing flow regulation), enters the downstream region of the insertion hole 1211, and finally flows back to the downstream section of the airflow channel 111 through the air outlet 1213, achieving directional and controllable fluid transmission. Simultaneously, the air inlet 1212 and air outlet 1213 are located on opposite sides of the throttling section, ensuring that the fluid must be regulated by the throttling section before it can flow, avoiding regulation failure caused by "bypass flow".
[0032] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the airflow channel 111 includes an air inlet channel and an air outlet channel located on both sides of the throttling groove 112. The air inlet channel is connected to the air inlet hole 1212, and the air outlet channel is connected to the air outlet hole 1213.
[0033] Specifically, the original "integrated airflow channel 111" is divided into an independent inlet channel and an outlet channel, located on opposite sides of the throttling groove 112. The inlet channel is located upstream of the throttling groove 112 and is specifically used to introduce the fluid to be regulated; the outlet channel is located downstream of the throttling groove 112 and is specifically used to output the regulated fluid. Simultaneously, the outlet end of the inlet channel precisely connects to the inlet port 1212 of the throttling sleeve 121, and the inlet end of the outlet channel precisely connects to the outlet port 1213 of the throttling sleeve 121, further clarifying the fluid flow path as "inlet channel → inlet port 1212 → insertion hole 1211 (throttling part) → outlet port 1213 → outlet channel".
[0034] The intake and exhaust channels are independently separated, preventing fluid "backflow" or "mixing" within the airflow channel 111. Simultaneously, each channel is connected one-to-one with the intake port 1212 and the exhaust port 1213, reducing fluid resistance losses (such as eddies and local pressure drops) at the channel junctions and ensuring smooth fluid transmission. For example, in a pneumatic system, compressed air enters through the intake channel, is throttled, and then outputs through the exhaust channel to the actuator (such as a cylinder), with no fluid stagnation or reverse flow throughout the entire process.
[0035] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the space between the airflow channel 111 and the throttling groove 112 and the throttling sleeve 121 forms a second ventilation path. A rubber isolation ring 124 is fitted on the throttling sleeve 121 to block the second ventilation path. The rubber isolation ring 124 is located between the air inlet 1212 and the air outlet 1213.
[0036] Specifically, in addition to the "first ventilation path," there is also a potential "second ventilation path," where the fluid, after entering through the airflow channel 111, does not pass through the controlled path of inlet 1212-insertion hole 1211-outlet 1213, but instead flows through the gap between the throttling groove 112 and the outer wall of the throttling sleeve 121. To eliminate this "bypass flow" problem, a rubber isolation ring 124 is fitted on the throttling sleeve 121, and the isolation ring is installed between the inlet 1212 and the outlet 1213, dividing the space between the outer wall of the throttling sleeve 121 and the inner wall of the throttling groove 112 into an "inlet side region" and an "outlet side region," completely blocking the flow of fluid in this gap and forcing the fluid to flow only through the first ventilation path.
[0037] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the side wall of the throttling groove 112 is provided with a support surface, and the rubber isolation ring 124 has a sleeve portion 1241 that engages with the throttling sleeve 121 and a flange 1242 that abuts against the support surface.
[0038] First, an annular support surface (such as a stepped surface or a flat surface) is machined on the side wall of the throttling groove 112 to provide axial positioning for the isolation ring. Second, the rubber isolation ring 124 is divided into two parts—an inner sleeve portion 1241 (an annular structure that fits tightly against the outer wall of the throttling sleeve 121) and an outer flange 1242 (an annular protrusion that extends radially outward along the sleeve portion 1241). During assembly, the sleeve portion 1241 is fitted onto the throttling sleeve 121, one side of the flange 1242 abuts tightly against the support surface of the throttling groove 112, and the other side fits against the side wall of the throttling sleeve 121 or the end face of the throttling fluid 122, forming a double fixation of "axial limiting + radial sealing".
[0039] The advantages of this structure are: the abutting fit between the flange 1242 and the support surface restricts the displacement of the isolation ring in the axial direction (movement direction of the throttling column 123), avoiding the displacement of the isolation ring caused by fluid pressure impact or component vibration; at the same time, the flange 1242 increases the contact area between the isolation ring and the throttling groove 112, improving the sealing reliability, and is especially suitable for high-pressure fluid systems.
[0040] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, a groove 1243 is provided between the sleeve portion 1241 and the flange 1242.
[0041] Specifically, when the air pressure on the outlet side is too high, the gas on the outlet side pushes open the flange 1242 and flows to the inlet side along the second ventilation path. The groove 1243 reduces the resistance to reverse deformation of the flange 1242 by providing sufficient deformation space and guiding function for the flange 1242.
[0042] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, a positioning groove 113 is provided at the bottom of the throttling groove 112, and the throttling sleeve 121 is limited and positioned in the positioning groove 113.
[0043] Specifically, a positioning groove 113 (such as a circular groove with an inner diameter consistent with the outer diameter of the throttling sleeve 121) matching the shape of the bottom of the throttling sleeve 121 is machined at the bottom of the throttling groove 112 (on the side near the bottom of the mounting base 110). The bottom of the throttling sleeve 121 is embedded in the positioning groove 113, forming a dual limit in the radial and axial directions. In the radial direction, the inner wall of the positioning groove 113 restricts the swaying of the throttling sleeve 121; in the axial direction, the bottom surface of the positioning groove 113 supports the throttling sleeve 121, preventing it from displacing downward under fluid pressure.
[0044] The assembly process of this structure is as follows: During assembly, the bottom of the throttling sleeve 121 is first aligned with the positioning groove 113 and inserted. The positioning groove 113 automatically completes the center positioning of the throttling sleeve 121, ensuring that the insertion hole 1211, air inlet 1212, and other structures of the throttling sleeve 121 are precisely aligned with the positions of the airflow channel 111 and the throttling column 123. Subsequently, the throttling device 122 is installed. The throttling device 122 cooperates with the annular groove of the throttling sleeve 121 to further fix the axial position of the throttling sleeve 121. Through the double fixation of "positioning groove 113 + throttling device 122", the position of the throttling sleeve 121 in the throttling groove 112 is completely limited, avoiding displacement caused by vibration or fluid impact.
[0045] Furthermore, the throttling sleeve 121 includes a first section located above and a second section located below. The outer diameter of the first section is larger than that of the second section. The first section is inserted into the annular groove of the throttling fluid 122. The bottom of the second section is limited and set in the positioning groove 113. The throttling part is located at the connection between the first section and the second section.
[0046] In one possible embodiment of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the outer wall of the throttling fluid 122 is provided with a locking protrusion, and the inner wall of the throttling groove 112 is provided with a locking groove that engages with the locking protrusion.
[0047] Specifically, the connection between the two is optimized through a "protrusion + groove" snap-fit structure: an annular protrusion (or multiple evenly distributed dot-shaped protrusions) extending in the circumferential direction is machined on the outer wall of the throttling fluid 122, and an annular groove (or dot-shaped groove) matching the shape of the protrusion is machined at the corresponding position on the inner wall of the throttling groove 112. During assembly, the throttling fluid 122 is placed into the throttling groove 112 from top to bottom. When the throttling fluid 122 moves to the designated position, the protrusion is embedded into the groove under the action of elastic deformation, forming a detachable snap-fit fixation.
[0048] Furthermore, a first sealing element is provided between the throttling sleeve 121 and the inner wall of the throttling groove 112, and a second sealing element is provided between the inner wall of the throttling fluid 122 and the throttling column 123.
[0049] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A speed regulating valve, characterized in that, The device includes a mounting base with an airflow channel and a throttling groove. The extension direction of the throttling groove is perpendicular to the extension direction of the airflow channel. A valve core is disposed in the throttling groove. The valve core includes a throttling sleeve and a throttling fluid connected from bottom to top. The throttling fluid has an annular groove that partially accommodates the throttling sleeve. A throttling column is connected to the throttling fluid, and the opening and closing of the air passage of the airflow channel is controlled by the throttling column.
2. The speed regulating valve according to claim 1, characterized in that, The throttling sleeve has a radially through-hole, and the throttling post is inserted into the throttling part of the hole.
3. The speed regulating valve according to claim 2, characterized in that, The side wall of the insertion hole is provided with an air inlet and an air outlet that connect the airflow channel and the insertion hole. The air inlet and the air outlet are located on both sides of the throttling part. The airflow channel, the air inlet, the insertion hole and the air outlet form a first ventilation path.
4. The speed regulating valve according to claim 3, characterized in that, The airflow channel includes an air inlet channel and an air outlet channel located on both sides of the throttling groove, the air inlet channel and the air inlet hole are connected, and the air outlet channel and the air outlet hole are connected.
5. The speed regulating valve according to claim 3, characterized in that, The airflow channel and the space between the throttling groove and the throttling sleeve form a second ventilation path. A rubber isolation ring is fitted on the throttling sleeve to block the second ventilation path. The rubber isolation ring is located between the air inlet and the air outlet.
6. The speed regulating valve according to claim 5, characterized in that, The throttling groove sidewall is provided with a support surface, and the rubber isolation ring has a sleeve portion that engages with the throttling sleeve and a flange that abuts against the support surface.
7. The speed regulating valve according to claim 6, characterized in that, A groove is provided between the sleeve and the flange.
8. The speed regulating valve according to claim 1, characterized in that, The bottom of the throttling groove is provided with a positioning groove, and the throttling sleeve is limited and positioned in the positioning groove.
9. The speed regulating valve according to claim 1, characterized in that, The outer wall of the throttling fluid is provided with a locking protrusion, and the inner wall of the throttling groove is provided with a locking groove that engages with the locking protrusion.
10. The speed regulating valve according to claim 1, characterized in that, A first sealing element is provided between the throttling sleeve and the inner wall of the throttling groove, and a second sealing element is provided between the inner wall of the throttling fluid and the throttling column.