Self-checking electromagnetic valve

Abstract

The utility model provides a self-check solenoid valve, including valve body, bonnet, solenoid coil, pipeline, first half-moon cylinder and second half-moon cylinder, bonnet is provided on the upper side of valve body, solenoid coil is fixed on bonnet, in solenoid coil is provided with movable iron core and elastic piece, the pipeline is provided on the lower side of valve body, the first half-moon cylinder is fixed on the valve body, and the second half-moon cylinder is fixed on the pipeline. The two axial sides of the pipeline are each provided with a connector. According to the scheme, overflowing media are collected through the cylinder defined by the first half-moon cylinder and the second half-moon cylinder, the working state of the valve seat of the electromagnetic valve can be monitored in real time through the built-in self-checking device, and once the problems of untight sealing, slow action and the like of the valve seat are found, an early warning signal can be immediately sent out to remind an operator to deal with the problems in time; and fault expansion is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a self-checking electromagnetic valve. Background Art

[0002] With the continuous improvement of industrial automation and intelligence, solenoid valves are indispensable key components in fluid control systems, and their performance stability and reliability have a vital impact on the overall operating efficiency and safety of the system. However, during the long-term use of solenoid valves, due to the influence of various factors such as wear, corrosion, impurity blockage, etc., the valve seat is prone to problems such as poor sealing and slow movement. If these problems are not discovered and solved in time, it will not only affect the normal operation of the system, but may also cause equipment damage and even cause safety accidents.

[0003] Traditional solenoid valve seat inspection methods usually require manual disassembly, inspection and replacement, which is not only cumbersome and inefficient, but also requires professionals to perform, increasing maintenance costs. In addition, since solenoid valves are usually installed in more complex piping systems, the disassembly and installation process can easily cause secondary contamination and damage to the system.

[0004] Therefore, developing a device that can perform self-checking on the solenoid valve seat to achieve real-time monitoring and early warning of the valve seat status has become an important direction for the current development of solenoid valve technology. This self-checking solenoid valve can not only detect and deal with valve seat problems in a timely manner, but also improve the automation and intelligence level of the system, reduce maintenance costs, and ensure the safe and stable operation of the system. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a self-checking solenoid valve, which solves the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a self-checking solenoid valve, comprising a valve body, a valve cover, an electromagnetic coil sleeve, a pipeline, a first semi-moon cylinder and a second semi-moon cylinder, the valve cover is arranged on the upper side of the valve body, the electromagnetic coil sleeve is fixedly arranged on the valve cover, a moving iron core and an elastic member are arranged in the electromagnetic coil sleeve, the pipeline is arranged on the lower side of the valve body, interfaces are arranged on both axial sides of the pipeline, the first semi-moon cylinder and the second semi-moon cylinder are respectively placed on the outer circular surface of the interface, the first semi-moon cylinder and the second semi-moon cylinder are detachably connected, a detection unit is arranged in the first semi-moon cylinder, the detection unit is electrically connected to the terminal device, and the detection unit is used to identify the sealing state of the interface.

[0009] Preferably, a sealing gasket is provided between the valve body and the valve cover.

[0010] Preferably, the first half-moon cylinder is located at the lower side, and the second half-moon cylinder is located at the upper side, and the first half-moon cylinder and the second half-moon cylinder together form a cylindrical shape.

[0011] Preferably, the first semi-moon cylinder and the second semi-moon cylinder are provided with connecting grooves on both axial sides, and the connecting grooves are used to seal the first semi-moon cylinder and the second semi-moon cylinder with the interface. An assembly hole is opened in the second semi-moon cylinder, and the second semi-moon cylinder is fixed to the first semi-moon cylinder by screws in the assembly hole.

[0012] Preferably, the detection unit comprises at least two groups of bases, and the bases are arranged in an array along the axial direction at the inner bottom of the first semi-circular cylinder, and the bases are each provided with a contact switch, and the contact switch is electrically connected to the terminal device.

[0013] (III) Beneficial effects

[0014] The utility model provides a self-checking solenoid valve, which has the following beneficial effects:

[0015] 1. This solution collects the overflowed medium through the cylinder surrounded by the first semi-moon cylinder and the second semi-moon cylinder, and can monitor the working status of the solenoid valve seat in real time through the built-in self-test device. Once the valve seat is found to have problems such as poor sealing and slow movement, it can immediately issue an early warning signal to remind the operator to deal with it in time and effectively avoid the expansion of the fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0018] In the figure: 11, valve body; 12, valve cover; 13, sealing gasket; 14, electromagnetic coil sleeve; 15, pipeline; 16, interface; 17, first semi-moon cylinder; 18, second semi-moon cylinder; 20, connecting notch; 21, assembly hole; 22, base; 23, contact switch. DETAILED DESCRIPTION

[0019] The utility model provides a self-checking solenoid valve. Figure 1-2As shown, it includes a valve body 11, a valve cover 12, an electromagnetic coil sleeve 14, a pipeline 15, a first semi-moon cylinder 17 and a second semi-moon cylinder 18. The valve cover 12 is arranged on the upper side of the valve body 11, and the electromagnetic coil sleeve 14 is fixed on the valve cover 12. A moving iron core and an elastic member are arranged in the electromagnetic coil sleeve 14. The operation of the moving iron core will cause the medium to pass through the valve body or be cut off. The pipeline 15 is arranged on the lower side of the valve body 11. Interfaces 16 are arranged on both axial sides of the pipeline 15. The interface 16 is used to connect with external pipelines. The first semi-moon cylinder 17 and the second semi-moon cylinder 18 are respectively placed on the outer circumferential surface of the interface 16. The first semi-moon cylinder 17 and the second semi-moon cylinder 18 are detachably connected. A detection unit is arranged in the first semi-moon cylinder 17. The detection unit is electrically connected to the terminal device. The detection unit is used to identify the sealing state of the interface 16.

[0020] A sealing gasket 13 is provided between the valve body 11 and the valve cover 12 .

[0021] The first semi-moon cylinder 17 is located at the lower side, and the second semi-moon cylinder 18 is located at the upper side, and the first semi-moon cylinder 17 and the second semi-moon cylinder 18 together form a cylindrical shape.

[0022] The first semi-moon cylinder 17 and the second semi-moon cylinder 18 are provided with connecting grooves 20 on both axial sides, and the connecting grooves 20 are used to seal the first semi-moon cylinder 17 and the second semi-moon cylinder 18 with the interface 16. The second semi-moon cylinder 18 is provided with an assembly hole 21, and the second semi-moon cylinder 18 is fixed to the first semi-moon cylinder 17 by screws in the assembly hole 21.

[0023] like Figure 2 As shown, the detection unit includes at least two groups of bases 22, which are arranged in an array along the axial direction at the bottom of the first semi-circular cylinder 17, and each base 22 is provided with a contact switch 23, which is electrically connected to the terminal device.

[0024] The valve body 11 controls the position of the valve core through the electromagnetic coil sleeve 14, cuts off or connects the air source to change the flow direction of the fluid, controls the direction of the medium, and thus controls the opening and closing of the valve.

[0025] When the interface 16 leaks, the overflowed medium is collected by the cylinder formed by the first semi-lunar cylinder 17 and the second semi-lunar cylinder 18, and the liquid level at the bottom of the first semi-lunar cylinder 17 gradually rises. When the liquid level rises to contact with the contact switch 23, the contact switches 23 are short-circuited and connected, and the contact switch 23 alerts the terminal device that the interface 16 is leaking.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-checking solenoid valve, characterized in that: The invention comprises a valve body (11), a valve cover (12), an electromagnetic coil sleeve (14), a pipeline (15), a first semi-moon cylinder (17) and a second semi-moon cylinder (18), wherein the valve cover (12) is arranged on the upper side of the valve body (11), the electromagnetic coil sleeve (14) is fixedly arranged on the valve cover (12), a moving iron core and an elastic member are arranged in the electromagnetic coil sleeve (14), the pipeline (15) is arranged on the lower side of the valve body (11), both axial sides of the pipeline (15) are provided with interfaces (16), the first semi-moon cylinder (17) and the second semi-moon cylinder (18) are respectively arranged in the The outer circular surface of the interface (16), the first semi-lunar cylinder (17) and the second semi-lunar cylinder (18) are detachably connected, a detection unit is provided in the first semi-lunar cylinder (17), the detection unit is electrically connected to the terminal device, and the detection unit is used to identify the sealing state of the interface (16); the detection unit includes at least two groups of bases (22), the bases (22) are arranged in an array along the axial direction at the bottom of the first semi-lunar cylinder (17), and the bases (22) are each provided with a contact switch (23), and the contact switch (23) is electrically connected to the terminal device.

2. A self-checking solenoid valve according to claim 1, characterized in that: A sealing gasket (13) is provided between the valve body (11) and the valve cover (12).

3. A self-checking solenoid valve according to claim 1, characterized in that: The first half-moon cylinder (17) is located at the lower side, and the second half-moon cylinder (18) is located at the upper side, and the first half-moon cylinder (17) and the second half-moon cylinder (18) together form a cylindrical shape.

4. A self-checking solenoid valve according to claim 3, characterized in that: The first semi-lunar cylinder (17) and the second semi-lunar cylinder (18) are provided with connecting notches (20) on both axial sides, and the connecting notches (20) are used to seal the first semi-lunar cylinder (17) and the second semi-lunar cylinder (18) with the interface (16). The second semi-lunar cylinder (18) is provided with an assembly hole (21), and the second semi-lunar cylinder (18) is fixed to the first semi-lunar cylinder (17) by screws in the assembly hole (21).

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