Mechanical valve
By adopting the linkage design of the servo and cam in the mechanical valve, the precise control of fluid flow is achieved, and the problems of low accuracy, high cost and short life of existing mechanical valves are solved, the control accuracy and equipment reliability are improved, and the cost is reduced.
Patent Information
- Application Number
- CN202411722028.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-02-25
AI Technical Summary
When faced with complex application environments and high-precision requirements, existing mechanical valves have problems such as low accuracy, high equipment cost and short service life.
The linkage design of the servo and the cam is adopted, and the shaft core is contacted by the top or side surfaces of the cam, and the position of the shaft core is changed, so that the spring is in a compressed or released state to varying degrees, thereby achieving a fine adjustment of the fluid flow.
It improves control accuracy, reduces equipment costs, enhances equipment reliability, and supports automated management and monitoring to meet the needs of diverse application scenarios.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of valves, and in particular to a mechanical valve. Background Art
[0002] With the development of science and technology and the progress of society, precise control of various fluids (such as water, oil, gas, etc.) has become particularly important. Although traditional mechanical valves can meet the basic opening and closing functions, their limitations gradually emerge when facing complex use environments and applications with higher requirements for precision. For example, when frequent flow or pressure adjustment is required, manual operation is not only inefficient, but also difficult to achieve the requirements of precise control; in some dangerous environments, manual operation may also bring safety hazards. At present, mechanical valves are usually directly controlled by software programmed in advance by computers, which not only has high requirements on the equipment, but also on the accuracy of the software, which leads to technical problems such as short service life and high cost of the equipment. Summary of the invention
[0003] The object of the present invention is to provide a mechanical valve which can solve the technical problems of low precision, high equipment cost and short service life of current mechanical valves.
[0004] The present invention is achieved in that: 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; an axis core, one end of which is 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.
[0005] 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 steering gear are both located on the same surface of the connecting plate.
[0006] 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.
[0007] 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 steering gear are both located on the inner side or the outer side of the connecting plate.
[0008] 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.
[0009] Furthermore, a plurality of clamping parts are respectively arranged on both sides of the steering gear.
[0010] Furthermore, the mechanical valve further comprises a control unit, and the control unit is connected to the steering gear signal.
[0011] The main beneficial effects of the present invention are: 1. Improve control accuracy: Through the linkage design of the servo and the cam, the position of the shaft core is precisely controlled. When the cam rotates, its top surface or side surface of different shapes contacts the shaft core, thereby changing the position of the shaft core, so that the spring is in a state of compression or release to different degrees. This mechanical structure can finely adjust the fluid flow, ensuring the smoothness and accuracy of the control process.
[0012] 2. Reduce equipment costs: The present invention uses relatively simple mechanical parts to build the core control mechanism, reducing the 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 later operating costs.
[0013] 3. Enhance equipment reliability: As a buffer element, the spring plays an important role in shock absorption during the interaction between the cam and the shaft core, which helps to reduce mechanical wear and extend the service life of the valve. In addition, by setting the clamping part to fix the servo, the stability of the entire device is increased, further improving the reliability and durability of the equipment.
[0014] 4. Easy to integrate and expand: The mechanical valve of the present invention is designed with a standard interface, which can be easily connected to other systems, supports remote control and data transmission functions, and is easy to realize automatic management and monitoring. At the same time, after adding a control unit, more complex functions can be realized through programming, such as timer switch, flow recording, etc., to meet the needs of diverse application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0016] Figure 1It is a structural schematic diagram of the case where the lowest point of the top surface of the cam in Embodiment 1 of the present invention abuts against the other end of the shaft core; Figure 2 It is a structural schematic diagram of the case where the highest point of the top surface of the cam in Embodiment 1 of the present invention abuts against the other end of the shaft core; Figure 3 Schematic diagram of the structure of the cam and the steering gear in Embodiment 1 of the present invention; Figure 4 Schematic diagram of the internal structure of the valve body in Examples 1 to 3 of the present invention; Figure 5 It is a schematic structural diagram of the case where the most outward point of the side surface of the cam in Embodiment 2 of the present invention abuts against the other end of the shaft core; Figure 6 It is a schematic structural diagram of the case where the innermost point of the side surface of the cam in Embodiment 2 of the present invention abuts against the other end of the shaft core; Figure 7 Schematic diagram of the structure of the cam and the steering gear in Embodiment 2 of the present invention; Icon: 1-connecting plate, 2-valve body, 3-servo gear, 4-cam, 5-shaft core, 6-clamping part, 7-spring. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0018] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0019] 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, further definition and explanation thereof is not required in subsequent drawings.
[0020] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0021] In the description of the embodiments of the present invention, "several" means at least 2.
[0022] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example
[0023] Please refer to Figure 1-4 , Figure 1 It is a schematic structural diagram of the case where the lowest point of the top surface of the cam 4 in Embodiment 1 of the present invention abuts against the other end of the shaft core 5; Figure 2 It is a schematic structural diagram of the case where the highest point of the top surface of the cam 4 in Embodiment 1 of the present invention abuts against the other end of the shaft core 5; Figure 3 The figure shows a schematic diagram of the structure of the cam 4 and the steering gear 3 in the embodiment 1 of the present invention; Figure 4 It is a schematic diagram of the internal structure of the valve body 2 in Examples 1 to 3 of the present invention.
[0024] The embodiment of the present application provides a mechanical valve, comprising: A connecting plate 1; a servo 3, fixedly connected to the connecting plate 1; a cam 4, connected to the rotation output shaft of the servo 3; a valve body 2, fixedly connected to the connecting plate 1; an axis 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 axis core 5 extends out of the valve body 2 and abuts against the cam 4.
[0025] In this embodiment, the servo gear 3 and the valve body 2 are fixed to the connecting plate 1 by bolt connection. The servo gear 3 and the valve body 2 are provided with screw holes for installation in advance 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.
[0026] 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.
[0027] In this embodiment, the slope of the sloped structure of the cam 4 is less than or equal to 90 degrees, so as to avoid the shaft core 5 moving on the cam 4 not smoothly during the rotation of the cam 4, thereby reducing the practicality of the overall device.
[0028] 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.
[0029] 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.
[0030] In some embodiments of the present invention, a plurality of clamping portions 6 are respectively provided on both sides of the steering gear 3 .
[0031] By means of the clamping portion 6 , a structure or device such as a proton flowmeter or a sensor 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
[0032] Please refer to Figure 4-7 , Figure 4 FIG. 2 is a schematic diagram of the internal structure of the valve body 2 in Embodiments 1 to 3 of the present invention. Figure 5 It is a schematic structural diagram of the case where the most outward point of the side surface of the cam 4 in the second embodiment of the present invention abuts against the other end of the shaft core 5; Figure 6 It is a schematic structural diagram of the case where the innermost point of the side surface of the cam 4 in the second embodiment of the present invention abuts against the other end of the shaft core 5; Figure 7 It is a schematic structural diagram of the cam 4 and the steering gear 3 in the second embodiment of the present invention.
[0033] The embodiment of the present application provides a mechanical valve, comprising: A connecting plate 1; a servo 3, fixedly connected to the connecting plate 1; a cam 4, connected to the rotation output shaft of the servo 3; a valve body 2, fixedly connected to the connecting plate 1; an axis 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 axis core 5 extends out of the valve body 2 and abuts against the cam 4.
[0034] In this embodiment, the servo gear 3 and the valve body 2 are fixed to the connecting plate 1 by bolt connection. The servo gear 3 and the valve body 2 are provided with screw holes for installation in advance 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.
[0035] 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.
[0036] 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 .
[0037] 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.
[0038] 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.
[0039] In some embodiments of the present invention, a plurality of clamping portions 6 are respectively provided on both sides of the steering gear 3 .
[0040] By means of the clamping portion 6 , a structure or device such as a proton flowmeter or a sensor 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
[0041] The embodiment of the present application provides a mechanical valve, including a control unit (not shown in the figure), the control unit is connected to the steering gear 3 by signal, and the remaining components and connection relationships are the same as those in embodiment 1 or 2.
[0042] 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.
[0043] In summary, the mechanical valve provided by the present invention has the following beneficial effects: 1. Improve control accuracy: The linkage design of the servo 3 and the cam 4 realizes accurate control of the position of the shaft core 5. When the cam 4 rotates, its top surface or side surface of different shapes contacts the shaft core 5, thereby changing the position of the shaft core 5, so that the spring 7 is in a state of compression or release to different degrees. This mechanical structure can finely adjust the fluid flow rate, ensuring the smoothness and accuracy of the control process.
[0044] 2. Reduce equipment costs: The present invention uses relatively simple mechanical parts to build the core control mechanism, reducing the 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 later operating costs.
[0045] 3. Enhance equipment reliability: The spring 7, as a buffer element, plays an important role in damping the interaction between the cam 4 and the shaft core 5, which helps to reduce mechanical wear and extend the service life of the valve. In addition, by providing the clamping part 6 to fix the steering gear 3, the stability of the entire device is increased, further improving the reliability and durability of the equipment.
[0046] 4. Easy to integrate and expand: The mechanical valve of the present invention is designed with a standard interface, which can be easily connected to other systems, supports remote control and data transmission functions, and is easy to realize automatic management and monitoring. At the same time, after adding a control unit, more complex functions can be realized through programming, such as timer switch, flow recording, etc., to meet the needs of diverse application scenarios.
[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope 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 with 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 is in contact with 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 arranged 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.