Lockable electromagnetic valve piston

Abstract

The utility model discloses a lockable electromagnetic valve piston, which relates to the field of electromagnetic valves and comprises a valve cover arranged on the upper side of a valve body and a movable iron core piston, the lower end of the movable iron core piston is fixedly connected with a metal rod, the lower side of the valve body is fixedly connected with a bottom groove shell in a clamping manner, and a sliding block is arranged in the bottom groove shell. A magnet disc is fixedly connected to the upper surface of the sliding block, a micro motor is fixedly installed at the outer end of the bottom groove shell, the output end of the micro motor is fixedly connected with a lead screw shaft, a threaded hole is formed in one side of the sliding block in a penetrating mode, the sliding block is in threaded connection with the lead screw shaft through the threaded hole, the movable iron core piston is located in the valve body, and the magnet disc is attracted to the metal rod. The upper end of the movable iron core piston is fixedly connected with a compression spring; the electromagnetic valve has the advantages that the movable iron core piston can be tightly locked when the electromagnetic valve does not work, so that leakage of the electromagnetic valve is prevented, the function of quickly disassembling the electromagnetic valve piston is achieved, and the electromagnetic valve piston can be conveniently overhauled and maintained.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic valves, in particular to a lockable electromagnetic valve piston. Background Art

[0002] The solenoid valve piston is a device used to control the flow of fluid media. It consists of two parts: the solenoid valve and the piston. The solenoid valve controls the movement of the piston through electric current to regulate the flow of the medium. The piston is usually a movable cylindrical piece that can be moved under the action of the sealing ring inside the valve body to open or close the passage of the medium.

[0003] After searching, the patent announcement number is CN218408722U, which discloses a piston solenoid valve, which can improve the sealing between the piston valve core and the valve. When the internal pressure of the valve is too high, the pressure inside the valve can be reduced in time, thereby preventing the valve from automatically opening due to excessive pressure when closed. However, when the existing solenoid valve is not working, it is easy for a gap to be left between the internal piston and the flow port, which can easily cause the fluid to pass through the non-working solenoid valve, affecting the normal use of the solenoid valve. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a lockable solenoid valve piston. When the existing solenoid valve is not working, a gap is easily left between its internal piston and the flow port, which easily causes fluid to pass through the non-working solenoid valve, affecting the normal use of the solenoid valve.

[0005] In order to solve the above technical problems, the technical solution of the utility model is a lockable solenoid valve piston, including a valve cover arranged on the upper side of the valve body, and also including a moving iron core piston, the lower end of the moving iron core piston is fixedly connected to a metal rod, the lower side of the valve body is clamped and connected to a bottom groove shell, the interior of the bottom groove shell is provided with a slider, and the upper surface of the slider is fixedly connected to a magnet disk.

[0006] As a further solution of the utility model: a micro motor is fixedly installed on the outer end of the bottom groove shell, a screw shaft is fixedly connected to the output end of the micro motor, a threaded hole is penetrated through one side of the slider, and the slider is threadedly connected to the screw shaft through the threaded hole.

[0007] As a further solution of the utility model: the moving iron core piston is located inside the valve body, and the magnet disk is attracted to the metal rod.

[0008] As a further solution of the utility model: the upper end of the moving iron core piston is fixedly connected with a compression spring, the upper end of the compression spring is fixedly connected with a fixed iron core, and the fixed iron core is clamped and connected to the inner side of the valve cover, and a coil is embedded on the valve body.

[0009] As a further solution of the utility model: a load-bearing groove shell is fixedly sleeved on the outer top of the valve body, four groups of limit rods are fixedly connected to the upper side of the load-bearing groove shell at equal intervals, four groups of limit blocks are fixedly connected to the outer side of the valve cover at equal intervals, four groups of rotating rods are rotatably connected to the upper side of the load-bearing groove shell, and the upper ends of the four groups of rotating rods are fixedly connected to rotating baffles.

[0010] As a further solution of the utility model: through holes are formed on the four groups of limit blocks, and the four groups of limit blocks are movably connected to the four groups of limit rods through the through holes.

[0011] As a further solution of the utility model: the valve cover is matched with the bearing tank shell, and the four groups of limit rods are respectively arranged alternately with the four groups of rotating rods.

[0012] The utility model adopts the above technical solution, and has the following advantages compared with the prior art: by starting the micro motor at the outer end of the bottom slot shell to drive the screw shaft to rotate, the screw shaft and the slider are threadedly connected to make the slider slide along the inner side of the bottom slot shell, thereby driving the magnet disk to move until the magnet disk is located directly below the metal rod, so that the moving iron core piston can be tightly locked when the solenoid valve is not working to prevent the solenoid valve from leaking.

[0013] Through four sets of rotating rods, the four sets of rotating baffles are respectively rotated away from the upper surface of the valve cover, and then the valve cover is moved away from the upper side of the valve body through the sliding cooperation of four sets of limit blocks and four sets of limit rods, and the moving iron core piston is pulled out from the inside of the valve body with the cooperation of the compression spring, thereby realizing the function of rapid removal of the solenoid valve piston for inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a lockable solenoid valve piston in an embodiment of the utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the valve body in the embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the valve cover and the connecting tank shell in the embodiment of the utility model;

[0017] Figure 4 It is a front view of a lockable solenoid valve piston in an embodiment of the utility model.

[0018] In the figure: 1. valve body; 2. valve cover; 3. fixed iron core; 4. compression spring; 5. moving iron core piston; 6. metal rod; 7. bottom slot shell; 8. micro motor; 9. screw shaft; 10. slider; 11. magnet disk; 12. coil; 13. load-bearing slot shell; 14. limit rod; 15. limit block; 16. rotating rod; 17. rotating baffle. DETAILED DESCRIPTION

[0019] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] Example 1, please refer to Figure 1-Figure 4 A lockable solenoid valve piston includes a valve cover 2 arranged on the upper side of a valve body 1, and also includes a moving iron core piston 5, the lower end of the moving iron core piston 5 is fixedly connected to a metal rod 6, the lower side of the valve body 1 is clamped and connected to a bottom groove shell 7, a slider 10 is arranged inside the bottom groove shell 7, and a magnet disk 11 is fixedly connected to the upper surface of the slider 10.

[0021] A micro motor 8 is fixedly mounted on the outer end of the bottom tank shell 7, and a screw shaft 9 is fixedly connected to the output end of the micro motor 8. A threaded hole is penetrated through one side of the slider 10, and the slider 10 is threadedly connected to the screw shaft 9 through the threaded hole.

[0022] In this embodiment, the slider 10 is moved by the threaded connection between the screw shaft 9 and the slider 10 .

[0023] The moving iron core piston 5 is located inside the valve body 1 , and the magnet disk 11 is attracted to the metal rod 6 .

[0024] In this embodiment, the position of the moving iron core piston 5 is limited by the attraction between the magnetic disk 11 and the metal rod 6 .

[0025] The upper end of the moving iron core piston 5 is fixedly connected with a compression spring 4 , the upper end of the compression spring 4 is fixedly connected with a fixed iron core 3 , and the fixed iron core 3 is clamped and connected to the inner side of the valve cover 2 , and a coil 12 is embedded on the valve body 1 .

[0026] In this embodiment, the flow of the electromagnetic valve is controlled by the cooperation between the fixed iron core 3 and the movable iron core piston 5 .

[0027] Specifically, the micro motor 8 at the outer end of the bottom slot shell 7 is started to drive the screw shaft 9 to rotate, so that the slider 10 slides along the inner side of the bottom slot shell 7 through the threaded connection between the screw shaft 9 and the slider 10, thereby driving the magnet disk 11 to move until the magnet disk 11 is located directly below the metal rod 6, so that the moving iron core piston 5 can be tightly locked when the solenoid valve is not working to prevent the solenoid valve from leaking.

[0028] Example 2, please refer to Figure 1-Figure 4A lockable solenoid valve piston, a load-bearing groove shell 13 is fixedly sleeved on the outer top of the valve body 1, four groups of limit rods 14 are fixedly connected to the upper side of the load-bearing groove shell 13 at equal intervals, four groups of limit blocks 15 are fixedly connected to the outer side of the valve cover 2 at equal intervals, four groups of rotating rods 16 are rotatably connected to the upper side of the load-bearing groove shell 13, and the upper ends of the four groups of rotating rods 16 are fixedly connected to rotating baffles 17.

[0029] Through holes are formed on the four groups of limit blocks 15 , and the four groups of limit blocks 15 are movably connected to the four groups of limit rods 14 through the through holes.

[0030] In this embodiment, the valve cover 2 is installed inside the bearing tank shell 13 by the cooperation of four groups of limit blocks 15 and four groups of limit rods 14 .

[0031] The valve cover 2 is matched with the bearing tank shell 13 , and the four groups of limit rods 14 are arranged alternately with the four groups of rotating rods 16 .

[0032] In this embodiment, the position of the valve cover is limited by the cooperation of four groups of rotating rods and four groups of rotating baffles.

[0033] Specifically, four groups of rotating baffles 17 are respectively rotated away from the upper surface of the valve cover 2 through four groups of rotating rods 16, and then the valve cover 2 is moved away from the upper side of the valve body 1 through the sliding cooperation of four groups of limit blocks 15 and four groups of limit rods 14, and the moving iron core piston 5 is pulled out from the inside of the valve body 1 with the cooperation of the compression spring 4, thereby realizing the function of rapid removal of the solenoid valve piston for its inspection and maintenance.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A lockable solenoid valve piston, comprising a valve cover (2) arranged on the upper side of a valve body (1), characterized in that: It also includes a moving iron core piston (5), the lower end of which is fixedly connected to a metal rod (6), the lower side of the valve body (1) is fixedly connected to a bottom groove shell (7), a slider (10) is arranged inside the bottom groove shell (7), and a magnet disk (11) is fixedly connected to the upper surface of the slider (10).

2. A lockable solenoid valve piston according to claim 1, characterized in that: A micro motor (8) is fixedly mounted on the outer end of the bottom tank shell (7), a screw shaft (9) is fixedly connected to the output end of the micro motor (8), a threaded hole is penetrated through one side of the slider (10), and the slider (10) is threadedly connected to the screw shaft (9) through the threaded hole.

3. A lockable solenoid valve piston according to claim 1, characterized in that: The movable iron core piston (5) is located inside the valve body (1), and the magnetic disk (11) is attracted to the metal rod (6).

4. A lockable solenoid valve piston according to claim 3, characterized in that: The upper end of the movable iron core piston (5) is fixedly connected to a compression spring (4), the upper end of the compression spring (4) is fixedly connected to a fixed iron core (3), and the fixed iron core (3) is fixedly connected to the inner side of the valve cover (2), and a coil (12) is embedded on the valve body (1).

5. A lockable solenoid valve piston according to claim 1, characterized in that: The outer top of the valve body (1) is fixedly sleeved with a bearing groove shell (13); the upper side of the bearing groove shell (13) is fixedly connected with four groups of limit rods (14) at equal intervals; the outer side of the valve cover (2) is fixedly connected with four groups of limit blocks (15) at equal intervals; the upper side of the bearing groove shell (13) is rotatably connected with four groups of rotating rods (16); the upper ends of the four groups of rotating rods (16) are fixedly connected with rotating baffles (17).

6. A lockable solenoid valve piston according to claim 5, characterized in that: Through holes are provided on the four groups of limit blocks (15), and the four groups of limit blocks (15) are movably connected to the four groups of limit rods (14) through the through holes.

7. A lockable solenoid valve piston according to claim 6, characterized in that: The valve cover (2) is matched with the bearing tank shell (13), and the four groups of limit rods (14) are respectively arranged alternately with the four groups of rotating rods (16).

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