Angle seat valve with signal feedback function
By introducing magnetic rings and magnetic induction switches into the angle seat valve, the problem of difficulty in judging faults of traditional angle seat valves is solved, and intelligent control and efficient pneumatic operation are achieved.
Patent Information
- Application Number
- CN202421914658.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-08
AI Technical Summary
Traditional pneumatic angle seat valves are difficult to judge when a fault occurs, resulting in increased maintenance costs.
The magnetic ring and magnetic induction switch are introduced into the angle seat valve, and piston position feedback is achieved through magnetic field induction, providing electrical signals to judge the valve core status, and combining multiple magnetic induction switches to optimize the reaction delay and improve control sensitivity.
It realizes intelligent judgment of the on-off state of the diagonal seat valve, reduces the risk of air leakage and improves the sensitivity and efficiency of pneumatic control.
Smart Images
Figure CN223191130U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to an angle seat valve with a signal feedback function. Background Art
[0002] Angle seat valves are guided angle seat valves operated by a single-acting pneumatic actuator with spring safety protection. They are widely used in conditions with frequent short-term starts. When used in conjunction with a solenoid valve, pneumatic control can accurately control the flow of gas and liquids. They can also achieve precise temperature control and liquid dosing requirements.
[0003] However, when the traditional pneumatic angle seat valve is working, the staff cannot determine whether the angle seat valve has faults such as valve stem stuck or cylinder failure. During maintenance, the fault area needs to be checked one by one, which increases maintenance costs. Utility Model Content
[0004] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: an angle seat valve with a signal feedback function, including a valve body, a connecting piece, a cylinder, a sealing assembly, a piston, a valve stem, a valve core and a cylinder spring, the valve body is provided with an inlet end, an outlet end and a control end that are connected to each other, one end of the connecting piece is connected to the control end, and the other end is connected to the cylinder, and a sealing assembly is provided between the connecting piece and the cylinder, one end of the valve stem is slidably connected to the cylinder through the piston, and the other end is connected to the valve core through the sealing assembly, and a cylinder spring is provided between the piston and the cylinder, and also includes a magnetic ring and a magnetic induction switch, the magnetic ring is sleeved on the piston, the cylinder is provided with a mounting portion, and the mounting portion is connected to a magnetic induction switch for feedback of the piston position.
[0005] Using the above technical solution, when the magnetic ring on the piston approaches the magnetic induction switch, the magnetic field generated by the magnetic ring causes the magnetic induction switch to attract, and the generated electrical signal feeds back the position of the valve core in the valve body, providing reference data for judging the on / off state of the angle seat valve and whether the transmission structure of the valve core is normal, thereby meeting the requirements of intelligent control of the hydraulic system.
[0006] The utility model is further configured such that the mounting portion is provided with an air hole and a mounting hole for an externally connected pneumatic solenoid valve, and a blind hole for connecting a magnetic induction switch. The blind holes are vertically distributed on both sides of the air hole, and the depths of the two groups of blind holes are different. The two groups of magnetic induction switches are respectively extended into the two groups of blind holes, corresponding to the two positions of the piston when the angle seat valve is opened and closed. Compared with the electrical signal feedback of a single magnetic induction switch, the response delay of the two groups of electrical signals is small, making the pneumatic control action more sensitive.
[0007] The utility model is further configured such that the outer surface of the mounting portion is a plane, the mounting holes are diagonally distributed on the mounting portion, and the blind holes are vertically distributed between the air holes and the mounting holes. The mounting surfaces of the two air holes of the cylinder are coplanar so that they fit the surface of the pneumatic solenoid valve, eliminating the need to install adapters and reducing the risk of air leakage.
[0008] The utility model is further configured such that a first slot is provided above the piston, the magnetic ring is connected to the piston through the first slot, and the outer diameter of the magnetic ring is smaller than the outer diameter of the piston, thereby avoiding interference between the magnetic ring and the inner wall of the cylinder when the piston moves, and preventing the magnetic ring from being damaged by force.
[0009] The utility model is further configured such that the piston is provided with a second groove coaxially distributed with the first groove, and a piston ring engaged in the second groove, so that the air tightness of the piston is increased by the piston ring, thereby improving the pneumatic transmission efficiency.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] When the magnetic ring on the piston approaches the magnetic induction switch, the magnetic field generated by the magnetic ring causes the magnetic induction switch to attract. The generated electrical signal feeds back the position of the valve core in the valve body, providing reference data for judging the on / off state of the angle seat valve and whether the transmission structure of the valve core is normal, thus meeting the requirements of intelligent control of the hydraulic system.
[0012] The embodiments of the present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a cross-sectional view of the utility model when the valve core is opened;
[0014] Figure 2 For the utility model Figure 1 A structural diagram of the view in the middle;
[0015] Figure 3 For the utility model Figure 2 A partial enlarged view of the middle B direction view;
[0016] Wherein: 1 - valve body, 2 - connector, 3 - cylinder, 4 - sealing assembly, 5 - piston, 6 - valve stem, 7 - valve core, 8 - cylinder spring, 9 - magnetic ring, 10 - magnetic induction switch, 11 - inlet end, 12 - outlet end, 13 - control end, 14 - mounting part, 15 - air hole, 16 - mounting hole, 17 - blind hole, 18 - first slot, 19 - second slot, 20 - piston ring; DETAILED DESCRIPTION
[0017] like Figure 1 、 2As shown, this embodiment provides an angle seat valve with a signal feedback function, including a valve body 1, a connecting member 2, a cylinder 3, a sealing assembly 4, a piston 5, a valve stem 6, a valve core 7 and a cylinder spring 8. The valve body 1 is provided with an inlet end 11, an outlet end 12 and a control end 13 that are connected to each other. One end of the connecting member 2 is connected to the control end 13, and the other end is connected to the cylinder 3, and a sealing assembly 4 is provided between the connecting member 2 and the cylinder 3. One end of the valve stem 6 is slidably connected to the cylinder 3 through the piston 5, and the other end is connected to the valve core 7 through the sealing assembly 4, and a cylinder spring 8 is provided between the piston 5 and the cylinder 3. It also includes a magnetic ring 9 and a magnetic induction switch 10. The magnetic ring 9 is sleeved on the piston 5, and the cylinder 3 is provided with a mounting portion 14. The mounting portion 14 is connected to the magnetic induction switch 10 for feedback of the position of the piston 5.
[0018] like Figure 2 As shown, in this embodiment, the mounting portion 14 is provided with an air hole 15 and a mounting hole 16 for connecting an external pneumatic solenoid valve, and a blind hole 17 for connecting the magnetic induction switch 10. The blind holes 17 are vertically distributed on both sides of the air hole 15, and the depths of the two groups of blind holes 17 are different. The mounting hole 16 is a threaded hole, and the pneumatic solenoid valve is externally connected by screws. The outer surface of the mounting portion 14 is flat, the mounting holes 16 are diagonally distributed on the mounting portion 14, and the blind holes 17 are vertically distributed between the air hole 15 and the mounting hole 16.
[0019] Combine Figure 3 As shown, in this embodiment, a first slot 18 is provided above the piston 5, and the magnetic ring 9 is connected to the piston 5 through the first slot 18, and the outer diameter of the magnetic ring 9 is smaller than the outer diameter of the piston 5. The piston 5 is provided with a second slot 19 coaxially distributed with the first slot 18, and a piston ring 20 connected in the second slot 19.
[0020] In the present utility model, the cylinder 3 is connected to an external air pump through a pneumatic solenoid valve, and its air hole 15 and mounting hole 16 are adapted to the hole position of the pneumatic solenoid valve. The pneumatic solenoid valve controls the direction of the airflow in the air hole 15 in the cylinder 3, thereby controlling the movement of the piston 5. The piston 5 drives the valve core 7 to move through the valve stem 6, and the flowing medium flows from the inlet end 11 to the outlet end 12. When the piston 5 moves downward, the valve core 7 disconnects the flow channel between the inlet end 11 and the outlet end 12, and opens otherwise. When the magnetic ring 9 on the piston 5 approaches the magnetic induction switch 10, the magnetic field generated by the magnetic ring 9 prompts the magnetic induction switch 10 to be attracted, so that the electrical signal generated by the magnetic induction switch 10 is used to feedback the position of the valve core 7 in the valve body 1, thereby providing parameters for judging the on-off state of the angle seat valve.
[0021] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. An angle seat valve with a signal feedback function, comprising a valve body (1), a connecting member (2), a cylinder (3), a sealing assembly (4), a piston (5), a valve stem (6), a valve core (7) and a cylinder spring (8), wherein the valve body (1) is provided with an inlet end (11), an outlet end (12) and a control end (13) which are connected to each other, one end of the connecting member (2) is connected to the control end (13), and the other end is connected to the cylinder (3), and a sealing assembly (4) is provided between the connecting member (2) and the cylinder (3), one end of the valve stem (6) is slidably connected to the cylinder (3) through the piston (5), and the other end passes through the sealing assembly (4) and is connected to the valve core (7), and a cylinder spring (8) is provided between the piston (5) and the cylinder (3), characterized in that: The invention also includes a magnetic ring (9) and a magnetic induction switch (10). The magnetic ring (9) is sleeved on the piston (5). The cylinder (3) is provided with a mounting portion (14). The mounting portion (14) is connected to the magnetic induction switch (10) for feedback of the position of the piston (5).
2. The angle seat valve with signal feedback function according to claim 1, characterized in that: The mounting portion (14) is provided with an air hole (15) and a mounting hole (16) for connecting an external pneumatic solenoid valve, and a blind hole (17) for connecting a magnetic induction switch (10). The blind holes (17) are vertically distributed on both sides of the air hole (15), and the depths of the two groups of blind holes (17) are different.
3. The angle seat valve with signal feedback function according to claim 2, characterized in that: The outer surface of the mounting portion (14) is a plane, the mounting holes (16) are diagonally distributed on the mounting portion (14), and the blind holes (17) are vertically distributed between the air holes (15) and the mounting holes (16).
4. The angle seat valve with signal feedback function according to claim 1, characterized in that: A first clamping groove (18) is provided above the piston (5), and the magnetic ring (9) is clamped to the piston (5) through the first clamping groove (18), and the outer diameter of the magnetic ring (9) is smaller than the outer diameter of the piston (5).
5. The angle seat valve with signal feedback function according to claim 4, characterized in that: The piston (5) is provided with a second clamping groove (19) coaxially distributed with the first clamping groove (18), and a piston ring (20) clamped in the second clamping groove (19).