Proportional electromagnetic valve
By designing a proportional solenoid valve structure with dual operation modes, the problem of single valve core position adjustment in the existing technology is solved, realizing a backup valve core movement scheme in case of electromagnet mechanism failure, and ensuring emergency adjustment of flow rate and opening/closing status.
Patent Information
- Application Number
- CN202423311892.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing proportional solenoid valves have a single valve core position adjustment method, which makes it difficult to adjust the valve body opening and closing and flow status in case of solenoid valve failure.
A proportional solenoid valve structure was designed, comprising a valve core, a proportional electromagnet mechanism, a first pull rod, a second pull rod, a clamping rod, a moving plate, a sliding mechanism, and a connecting mechanism. The sliding mechanism and the connecting mechanism enable the valve core to operate in a dual manner, ensuring that the valve core can still move even if the electromagnet mechanism fails.
It provides a backup operation plan in case of electromagnet mechanism failure, ensuring that the valve core can move normally and realize emergency adjustment of flow rate and opening/closing status.
Smart Images
Figure CN223648177U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromagnetic valve technology, and in particular to a proportional electromagnetic valve. Background Technology
[0002] Proportional solenoid valves are widely used in various industrial automation equipment, such as hydraulic systems, pneumatic systems, and fluid control systems. By changing the movement of the valve core within the cavity, the valve core can open and close different pipelines to control the flow and pressure of liquids or gases.
[0003] However, the adjustment method of the valve core position in the current proportional solenoid valve is relatively simple, and most of them rely entirely on the change of current or voltage of the solenoid coil. As a result, when the solenoid valve malfunctions, it is difficult to make timely emergency adjustments to the opening and closing of the valve body and the flow status. Utility Model Content
[0004] This invention proposes a proportional solenoid valve, which solves the aforementioned problems existing in the use of the prior art.
[0005] The technical solution of this utility model is implemented as follows: A proportional solenoid valve includes a valve body, a valve core slidably disposed inside the valve body, a proportional electromagnet mechanism disposed on the left side of the valve body, a first pull rod disposed between the valve core and the proportional electromagnet mechanism, the proportional electromagnet mechanism being used to drive the first pull rod to slide, an operating chamber disposed on the right side of the valve body, a second pull rod slidably disposed in the operating chamber, the second pull rod passing through the valve body to the left and being fixedly connected to the valve core, a clamping rod disposed in the operating chamber, the clamping rod being used to detachably connect to the second pull rod, and a sliding mechanism for adjusting the sliding position of the clamping rod and a connecting mechanism for changing the connection between the clamping rod and the second pull rod being disposed in the operating chamber.
[0006] The present invention is further configured such that: a movable plate is slidably arranged in the operating chamber, the movable plate is fixedly connected to the second pull rod, the left and right ends of the clamping rod are respectively located on the left and right sides of the movable plate, a stop rod is hinged to the left end of the clamping rod, the end of the stop rod abuts against the left end of the movable plate, an angle reset mechanism is provided between the clamping rod and the stop rod, and a push plate is fixedly connected to the right side of the movable plate, the push plate being used to abut against the movable plate.
[0007] The present invention is further configured such that: the angle reset mechanism is a torsion spring, the first point of force of the torsion spring is fixed on the clamping rod, and the second point of force of the torsion spring is fixed on the abutment rod.
[0008] The present invention is further configured such that: the sliding mechanism includes an operating rod, one end of the operating rod is fixedly connected to the push plate and the other end extends to the right to pass through the operating chamber, and the operating rod and the operating chamber are connected by a threaded engagement.
[0009] The present invention is further configured such that: the connecting mechanism includes a left limiting plate and a right limiting plate disposed on the inner side wall of the operating chamber, the left limiting plate and the right limiting plate being located on both sides of the moving plate respectively, and the left limiting plate and the right limiting plate being used to abut against the left and right end faces of the moving plate respectively.
[0010] The present invention is further configured such that: an elastic pushing member is provided at the left end of the movable plate.
[0011] The present invention is further configured such that the elastic pushing member is a spring.
[0012] In summary, the beneficial effects of this utility model are as follows:
[0013] 1. This structure provides two operating schemes for the movement of the valve core. When the proportional electromagnet mechanism fails, the clamping rod can be connected to the second pull rod through the connecting mechanism, and then the position of the clamping rod can be changed through the sliding mechanism to achieve the purpose of moving the valve core.
[0014] 2. Two annular limiting plates are used to abut against the two ends of the moving plate, so that the moving plate cannot move further in the two sliding directions. This allows the clamping rod to change the swing angle between the clamping rod and the abutment rod during the movement, and thus allows the clamping rod to shuttle back and forth in the through hole and leave the moving plate. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;
[0018] Figure 3 This is a three-dimensional structural diagram of the operating compartment in this utility model.
[0019] The following components are labeled in the diagram: 11 Valve body, 12 Valve core, 13 Proportional electromagnet mechanism, 14 First pull rod, 21 Operating chamber, 22 Second pull rod, 23 Moving plate, 31 Clamping rod, 32 Push rod, 33 Torsion spring, 34 Push plate, 35 Operating lever, 36 Right limit plate, 37 Elastic pusher, 38 Left limit plate. Detailed Implementation
[0020] The following will refer to the appendix in the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] Example:
[0022] like Figures 1 to 3 As shown, this utility model discloses a proportional solenoid valve, including a valve body 11. A valve core 12 is slidably disposed inside the valve body 11, and a proportional electromagnet mechanism 13 is disposed on the left side of the valve body 11. At the same time, a first pull rod 14 is disposed between the valve core 12 and the proportional electromagnet mechanism 13. The proportional electromagnet mechanism 13 is used to drive the first pull rod 14 to move the valve core 12 left and right. This is the prior art and will not be described in detail here.
[0023] An operating chamber 21 is provided on the right side of the valve body 11. A second pull rod 22 is slidably arranged in the operating chamber 21. The second pull rod 22 passes through the valve body 11 to the left and is fixedly connected to the valve core 12. At the same time, a movable plate 23 is slidably arranged in the operating chamber 21. The movable plate 23 is fixedly connected to the second pull rod 22, and an elastic pusher 37, which is a spring, is abutted against the left end of the movable plate 23. In addition, a clamping rod 31 is provided in the operating chamber 21. The clamping rod 31 is used for detachable connection with the second pull rod 22. Correspondingly, the operating chamber 21 is also provided with a sliding mechanism for adjusting the sliding position of the clamping rod 31 and a connecting mechanism for changing the connection between the clamping rod 31 and the second pull rod 22.
[0024] Reference Figure 1The specific configuration of the clamping rod 31 is as follows: when the clamping rod 31 is connected to the moving plate 23, the left and right ends of the clamping rod 31 are located on the left and right sides of the moving plate 23, respectively, and the left end of the clamping rod 31 is hinged to a stop rod 32. The end of the stop rod 32 is abutted against the left end of the moving plate 23. In addition, an angle reset mechanism is provided between the clamping rod 31 and the stop rod 32. The angle reset mechanism is a torsion spring 33. The first force point of the torsion spring 33 is fixed on the clamping rod 31 and the second force point is fixed on the stop rod 32. Finally, a push plate 34 is fixedly connected to the right side of the moving plate 23. The push plate 34 is used to abut against the moving plate 23.
[0025] The sliding mechanism specifically includes an operating lever 35, one end of which is fixedly connected to the push plate 34 and the other end extends to the right to pass through the operating chamber 21. At the same time, the operating lever 35 and the operating chamber 21 are connected by a threaded connection.
[0026] The connecting mechanism specifically includes a left limiting plate 38 and a right limiting plate 36 disposed on the inner side wall of the operating chamber 21. The left limiting plate 38 and the right limiting plate 36 are located on both sides of the moving plate 23, and the left limiting plate 38 and the right limiting plate 36 are respectively used to abut against the left and right end faces of the moving plate 23.
[0027] The working principle of the above structure is as follows: the clamping rod 31 can be moved left and right by rotating the operating rod 35. When the clamping rod 31 moves left and right, since the abutment rod 32 and the push plate 34 are both used to abut against the moving plate 23, the abutment rod 32 and the push plate 34 can respectively push the moving plate 23 to move to the right and left.
[0028] When the proportional electromagnet mechanism resumes operation, the operating lever 35 can be rotated to move the moving plate 23 to the right until the moving plate 23 abuts against the right limit plate 36. At this time, the operating lever 35 continues to move to the right, and the abutment rod 32 is affected by the abutment of the moving plate 23. The angle between the abutment rod 32 and the clamping rod 31 gradually increases. Finally, both the abutment rod 32 and the clamping rod 31 move to the right side of the moving plate 23. At this time, the movement of the valve core 12 is controlled by the solenoid valve.
[0029] When the proportional electromagnet mechanism malfunctions, the operating lever 35 can be rotated to move to the left until the moving plate 23 abuts against the left limit plate 38. At this time, the operating lever 35 continues to move to the left, and the abutment rod 32 is affected by the abutment of the moving plate 23, gradually reducing the angle between the abutment rod 32 and the clamping rod 31 until the abutment rod 32 moves to the left side of the moving plate 23. At this time, under the action of the torsion spring 33, the abutment rod 32 returns to its original angle, thereby enabling the abutment rod 32 to abut against the moving plate 23 again.
[0030] There are gaps between the left limiting plate 38, the right limiting plate 36 and the left and right ends of the operating chamber 21. These gaps are mainly used to provide a certain operating space for the connection and disassembly of the clamping rod 31 and the moving plate 23.
[0031] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A proportional solenoid valve, comprising a valve body (11), wherein a valve core (12) is slidably disposed inside the valve body (11), and a proportional electromagnet mechanism (13) is disposed on the left side of the valve body (11), characterized in that: A first pull rod (14) is provided between the valve core (12) and the proportional electromagnet mechanism (13). The proportional electromagnet mechanism (13) is used to drive the first pull rod (14) to slide. An operating chamber (21) is provided on the right side of the valve body (11). A second pull rod (22) is slidably provided in the operating chamber (21). The second pull rod (22) passes into the valve body (11) to the left and is fixedly connected to the valve core (12). A clamping rod (31) is provided in the operating chamber (21). The clamping rod (31) is used to detachably connect to the second pull rod (22). The operating chamber (21) is also provided with a sliding mechanism for adjusting the sliding position of the clamping rod (31) and a connecting mechanism for changing the connection between the clamping rod (31) and the second pull rod (22).
2. A proportional solenoid valve according to claim 1, characterized in that: A movable plate (23) is slidably arranged in the operating chamber (21). The movable plate (23) is fixedly connected to the second pull rod (22). The left and right ends of the clamping rod (31) are located on the left and right sides of the movable plate (23), respectively. A stop rod (32) is hinged to the left end of the clamping rod (31). The end of the stop rod (32) abuts against the left end of the movable plate (23). An angle reset mechanism is provided between the clamping rod (31) and the stop rod (32). A push plate (34) is fixedly connected to the right side of the movable plate (23) of the clamping rod (31). The push plate (34) is used to abut against the movable plate (23).
3. A proportional solenoid valve according to claim 2, characterized in that: The angle reset mechanism is a torsion spring (33), the first point of force of the torsion spring (33) is fixed on the clamping rod (31), and the second point of force of the torsion spring (33) is fixed on the abutment rod (32).
4. A proportional solenoid valve according to claim 3, characterized in that: The sliding mechanism includes an operating rod (35), one end of which is fixedly connected to the push plate (34) and the other end extends to the right to pass through the operating chamber (21). The operating rod (35) and the operating chamber (21) are connected by a threaded connection.
5. A proportional solenoid valve according to claim 4, characterized in that: The connecting mechanism includes a left limiting plate (38) and a right limiting plate (36) disposed on the inner side wall of the operating chamber (21). The left limiting plate (38) and the right limiting plate (36) are respectively located on both sides of the moving plate (23). The left limiting plate (38) and the right limiting plate (36) are respectively used to abut against the left and right end faces of the moving plate (23).
6. A proportional solenoid valve according to claim 2, characterized in that: The left end of the movable plate (23) is abutted by an elastic pusher (37).
7. A proportional solenoid valve according to claim 6, characterized in that: The elastic pusher (37) is a spring.