Mechanical valve
The mechanical valve designed through the linkage between the servo and the cam solves the problems of low precision and high equipment cost of mechanical valves, achieves precise flow control and improves equipment stability, reduces manufacturing costs and supports automated management.
Patent Information
- Application Number
- CN202422913767.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-28
AI Technical Summary
Existing mechanical valves have low accuracy when frequently adjusting flow or pressure, high equipment costs and short service life, and manual operation poses safety risks.
The servo and cam linkage design is adopted. The spring state is changed by the contact between the shaft core and the cam in different shapes to achieve precise control of fluid flow. The combination of simple mechanical parts and control units reduces dependence on expensive electronic components.
It improves control accuracy and equipment reliability, reduces manufacturing and operating costs, enhances valve stability and durability, and supports automated management and diversified functions.
Smart Images
Figure CN223344823U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a mechanical valve. Background Art
[0002] With the advancement of science and technology and the progress of society, precise control of various fluids (such as water, oil, and gas) has become increasingly important. While traditional mechanical valves can meet basic opening and closing functions, their limitations are becoming increasingly apparent when used in complex environments and in applications requiring higher precision. For example, manual operation is not only inefficient but also difficult to achieve precise control when frequent flow or pressure adjustments are required. In some hazardous environments, manual operation can also pose safety risks. Current mechanical valves are typically controlled directly by pre-programmed computer software, which places high demands not only on the equipment but also on the software's accuracy, leading to technical issues such as a short service life and high costs. Utility Model Content
[0003] The purpose of the utility model is to provide a mechanical valve that can solve the technical problems of low precision, high equipment cost and short service life of current mechanical valves.
[0004] The utility model is achieved in that:
[0005] The present application provides a mechanical valve, characterized in that it includes: a connecting plate; a servo, fixedly connected to the connecting plate; a cam, connected to the rotating output shaft of the servo; a valve body, fixedly connected to the connecting plate; a shaft core, one end of which is connected to a spring, the spring being fixedly connected to the inner wall of the valve body, the spring being located in the valve body, and the other end of the shaft core extending out of the valve body and abutting against the cam.
[0006] Furthermore, the other end of the shaft core abuts against the top surface of the cam, and the top surface of the cam is a sloped structure; the connecting plate is straight, and the valve body and the servo are both located on the same surface of the connecting plate.
[0007] Furthermore, when the highest point of the top surface of the cam abuts against the other end of the shaft core, the spring is in a compressed state; when the lowest point of the top surface of the cam abuts against the other end of the shaft core, the spring is in a naturally straightened state.
[0008] Furthermore, the other end of the shaft core abuts against the side of the cam, and the side of the cam is egg-shaped; the connecting plate is L-shaped, and the valve body and the servo are both located on the inner side or the outer side of the connecting plate.
[0009] Furthermore, when the most outward point of the side surface of the cam abuts against the other end of the shaft core, the spring is in a compressed state; when the most inward point of the side surface of the cam abuts against the other end of the shaft core, the spring is in a naturally straightened state.
[0010] Furthermore, a plurality of clamping parts are respectively provided on both sides of the steering gear.
[0011] Furthermore, the mechanical valve further includes a control unit, and the control unit is signal-connected to the servo.
[0012] The main beneficial effects of the utility model are:
[0013] 1. Improved Control Precision: The linkage design between the servo and cam enables precise control of the shaft core position. As the cam rotates, its differently shaped top or side surfaces contact the shaft core, changing its position and causing the spring to be compressed or released to varying degrees. This mechanical structure enables subtle adjustments to fluid flow, ensuring smooth and accurate control.
[0014] 2. Reduced equipment costs: This utility model uses relatively simple mechanical components to build the core control mechanism, reducing reliance on expensive electronic components. At the same time, through reasonable design, the overall structure is compact, easy to produce and maintain, effectively reducing manufacturing costs and subsequent operating costs.
[0015] 3. Enhanced Equipment Reliability: The spring acts as a buffer element, playing an important role in damping the interaction between the cam and the shaft, helping to reduce mechanical wear and extend the life of the valve. Furthermore, the clamping mechanism used to secure the servo increases the stability of the entire device, further enhancing its reliability and durability.
[0016] 4. Easy Integration and Expansion: The mechanical valve of this utility model is designed with standard interfaces, which can be easily connected to other systems, supporting remote control and data transmission functions, and facilitating automated management and monitoring. At the same time, after adding a control unit, more complex functions such as timer switching and flow recording can be programmed to meet the needs of diverse application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1This is a structural diagram of the embodiment 1 of the present invention when the lowest point of the top surface of the cam abuts against the other end of the shaft core;
[0019] Figure 2 This is a structural diagram of the embodiment 1 of the present invention when the highest point of the top surface of the cam abuts against the other end of the shaft core;
[0020] Figure 3 This is a schematic structural diagram of the cam and the steering gear in Example 1 of the present utility model;
[0021] Figure 4 Schematic diagram of the internal structure of the valve body in Examples 1 to 3 of the present utility model;
[0022] Figure 5 This is a schematic structural diagram of the embodiment 2 of the present invention when the most outward point of the side surface of the cam abuts against the other end of the shaft core;
[0023] Figure 6 This is a schematic structural diagram of Example 2 of the present invention when the innermost point of the side surface of the cam abuts against the other end of the shaft core;
[0024] Figure 7 This is a schematic structural diagram of the cam and the steering gear in Example 2 of the present utility model;
[0025] Icon: 1-connecting plate, 2-valve body, 3-servo, 4-cam, 5-shaft core, 6-clamping part, 7-spring. DETAILED DESCRIPTION
[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.
[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0029] In the description of the embodiments of the present invention, it should be noted that if the terms "center," "upper," "lower," "inner," "outer," etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the utility model is usually placed when in use. These terms are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be understood as indicating or implying relative importance.
[0030] In the description of the embodiments of the present invention, “several” means at least 2.
[0031] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances. Example
[0032] Please refer to Figure 1-4 , Figure 1 The figure shows a schematic structural diagram of the embodiment 1 of the present invention when the lowest point of the top surface of the cam 4 abuts against the other end of the shaft core 5; Figure 2 The figure shows a schematic structural diagram of the embodiment 1 of the present invention when the highest point of the top surface of the cam 4 abuts against the other end of the shaft core 5; Figure 3 The figure shows the structure of the cam 4 and the steering gear 3 in the first embodiment of the present invention; Figure 4 Shown is a schematic diagram of the internal structure of the valve body 2 in Examples 1 to 3 of the present invention.
[0033] The embodiment of the present application provides a mechanical valve, comprising:
[0034] Connecting plate 1; servo 3, fixedly connected to the connecting plate 1; cam 4, connected to the rotation output shaft of the servo 3; valve body 2, fixedly connected to the connecting plate 1; shaft core 5, one end of which is connected to a spring 7, the spring 7 is fixedly connected to the inner wall of the valve body 2, the spring 7 is located in the valve body 2, and the other end of the shaft core 5 extends out of the valve body 2 and abuts against the cam 4.
[0035] In this embodiment, the servo 3 and the valve body 2 are fixed to the connecting plate 1 by means of bolt connections. Screw holes for installation are pre-opened on the servo 3 and the valve body 2 and are compatible with the screw holes on the connecting plate 1. In addition, other connection methods such as welding can also be used for connection.
[0036] In some embodiments of the present invention, the other end of the shaft core 5 abuts against the top surface of the cam 4, and the top surface of the cam 4 is a sloped structure; the connecting plate 1 is straight, and the valve body 2 and the servo 3 are both located on the same surface of the connecting plate 1.
[0037] In this embodiment, the slope of the sloped structure of the cam 4 is less than or equal to 90 degrees to prevent the shaft core 5 from moving on the cam 4 unsmoothly during the rotation of the cam 4, thereby reducing the practicality of the entire device.
[0038] In some embodiments of the present invention, when the highest point of the top surface of the cam 4 abuts against the other end of the shaft core 5, the spring 7 is in a compressed state; when the lowest point of the top surface of the cam 4 abuts against the other end of the shaft core 5, the spring 7 is in a naturally straightened state.
[0039] In this embodiment, when the spring 7 is in a compressed state, the opening formed by the shaft core 5 and the valve body 2 reaches its maximum, and the valve body 2 is in an open state. When the spring 7 is in a naturally straightened state, the opening formed by the shaft core 5 and the valve body 2 is closed, and the valve body 2 is in a closed state.
[0040] In some embodiments of the present invention, a plurality of clamping portions 6 are respectively provided on both sides of the steering gear 3 .
[0041] By using the clamping portion 6 , a proton flowmeter or sensor or other structure or device that can be used for flow detection can be arranged on both sides of the steering gear 3 , thereby improving the applicability of the present invention and enabling it to be used in different detection situations. Example
[0042] Please refer to Figure 4-7 , Figure 4 The figure shows the internal structure of the valve body 2 in the embodiments 1 to 3 of the present invention. Figure 5 The figure shows a schematic structural diagram of the embodiment 2 of the present invention when the outermost point of the side surface of the cam 4 abuts against the other end of the shaft core 5; Figure 6 The figure shows a schematic structural diagram of the embodiment 2 of the present invention when the innermost point of the side surface of the cam 4 abuts against the other end of the shaft core 5; Figure 7 Shown is a schematic structural diagram of the cam 4 and the steering gear 3 in Example 2 of the present utility model.
[0043] The embodiment of the present application provides a mechanical valve, comprising:
[0044] Connecting plate 1; servo 3, fixedly connected to the connecting plate 1; cam 4, connected to the rotation output shaft of the servo 3; valve body 2, fixedly connected to the connecting plate 1; shaft core 5, one end of which is connected to a spring 7, the spring 7 is fixedly connected to the inner wall of the valve body 2, the spring 7 is located in the valve body 2, and the other end of the shaft core 5 extends out of the valve body 2 and abuts against the cam 4.
[0045] In this embodiment, the servo 3 and the valve body 2 are fixed to the connecting plate 1 by means of bolt connections. Screw holes for installation are pre-opened on the servo 3 and the valve body 2 and are compatible with the screw holes on the connecting plate 1. In addition, other connection methods such as welding can also be used for connection.
[0046] In some embodiments of the present invention, the other end of the shaft core 5 abuts against the side of the cam 4, and the side of the cam 4 is egg-shaped; the connecting plate 1 is L-shaped, and the valve body 2 and the servo 3 are both located on the inner side or outer side of the connecting plate 1.
[0047] In this embodiment, the egg-shaped cam 4 is symmetrical left to right but asymmetrical up to down, thereby avoiding the problem of low smoothness of the shaft core 5 during the side rotation of the cam 4 .
[0048] In some embodiments of the present invention, when the most outward point of the side of the cam 4 abuts against the other end of the shaft core 5, the spring 7 is in a compressed state; when the most inward point of the side of the cam 4 abuts against the other end of the shaft core 5, the spring 7 is in a naturally straightened state.
[0049] In this embodiment, when the spring 7 is in a compressed state, the opening formed by the shaft core 5 and the valve body 2 reaches its maximum, and the valve body 2 is in an open state. When the spring 7 is in a naturally straightened state, the opening formed by the shaft core 5 and the valve body 2 is closed, and the valve body 2 is in a closed state.
[0050] In some embodiments of the present invention, a plurality of clamping portions 6 are respectively provided on both sides of the steering gear 3 .
[0051] By using the clamping portion 6 , a proton flowmeter or sensor or other structure or device that can be used for flow detection can be arranged on both sides of the steering gear 3 , thereby improving the applicability of the present invention and enabling it to be used in different detection situations. Example
[0052] The embodiment of the present application provides a mechanical valve, including a control unit (not shown in the figure), which is signal-connected to the servo 3 , and the remaining components and connection relationships are the same as those in embodiment 1 or 2.
[0053] The control unit can more accurately set the speed, number of revolutions and other parameters of the cam 4, thereby ensuring the stability and controllability of the valve opening. In this embodiment, the control unit used is a computer, and can also be a single-chip microcomputer.
[0054] In summary, the mechanical valve provided by the present utility model has the following beneficial effects:
[0055] 1. Improved Control Precision: The linkage design between the servo 3 and cam 4 enables precise control of the position of the shaft core 5. As the cam 4 rotates, its top or side surfaces of varying shapes contact the shaft core 5, thereby changing the position of the shaft core 5 and causing the spring 7 to be compressed or released to varying degrees. This mechanical structure enables subtle adjustments to the fluid flow rate, ensuring smooth and accurate control.
[0056] 2. Reduced equipment costs: This utility model uses relatively simple mechanical components to build the core control mechanism, reducing reliance on expensive electronic components. At the same time, through reasonable design, the overall structure is compact, easy to produce and maintain, effectively reducing manufacturing costs and subsequent operating costs.
[0057] 3. Enhanced Equipment Reliability: Spring 7 acts as a buffer, providing a crucial damping effect during the interaction between cam 4 and shaft core 5, helping to reduce mechanical wear and extend the life of the valve. Furthermore, the provision of clamping portion 6 to secure servo 3 increases the stability of the entire device, further enhancing its reliability and durability.
[0058] 4. Easy Integration and Expansion: The mechanical valve of this utility model is designed with standard interfaces, which can be easily connected to other systems, supporting remote control and data transmission functions, and facilitating automated management and monitoring. At the same time, after adding a control unit, more complex functions such as timer switching and flow recording can be programmed to meet the needs of diverse application scenarios.
[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A mechanical valve, characterized in that: include: connecting plate; a steering gear, fixedly connected to the connecting plate; a cam connected to the rotation output shaft of the steering gear; a valve body, fixedly connected to the connecting plate; An axis core has one end connected to a spring, the spring is fixedly connected to the inner wall of the valve body, the spring is located in the valve body, and the other end of the axis core extends out of the valve body and abuts against the cam.
2. The mechanical valve according to claim 1, characterized in that: The other end of the shaft core abuts against the top surface of the cam, and the top surface of the cam is a sloped structure; the connecting plate is straight, and the valve body and the steering gear are both located on the same surface of the connecting plate.
3. The mechanical valve according to claim 2, characterized in that: When the highest point of the top surface of the cam abuts against the other end of the shaft core, the spring is in a compressed state; when the lowest point of the top surface of the cam abuts against the other end of the shaft core, the spring is in a naturally straightened state.
4. The mechanical valve according to claim 1, characterized in that The other end of the shaft core abuts against the side surface of the cam, and the side surface of the cam is egg-shaped; the connecting plate is L-shaped, and the valve body and the steering gear are both located on the inner side or the outer side of the connecting plate.
5. The mechanical valve according to claim 4, characterized in that: When the most outward point of the side surface of the cam abuts against the other end of the shaft core, the spring is in a compressed state; when the most inward point of the side surface of the cam abuts against the other end of the shaft core, the spring is in a naturally straightened state.
6. The mechanical valve according to any one of claims 1 to 5, characterized in that: A plurality of clamping parts are respectively provided on both sides of the steering gear.
7. The mechanical valve according to any one of claims 1 to 5, characterized in that: It also includes a control unit, which is connected to the steering engine signal.