Valve rod assembly of electromagnetic valve

Abstract

The valve rod assembly comprises an upper valve rod, a sealing ferrule is movably installed at the bottom end of the upper valve rod, a lower valve rod is movably installed at the bottom end of the sealing ferrule, an upper ash blocking plate is movably installed on the outer surface of the sealing ferrule, and three spiral connecting rods are fixedly installed at the bottom end of the upper ash blocking plate. Through the arrangement of the upper dust blocking plate, when the device is used, the installation position of the device can be blocked through the upper dust blocking plate, so that dust is prevented from falling into the device to influence the lifting or rotating operation of the device and the use of the electromagnetic valve, and meanwhile, through the arrangement of the spiral connecting rod, when the device is used, the dust is prevented from falling into the device to influence the use of the electromagnetic valve. When the device ascends or descends or rotates at the installation position, the inner wall of the groove at the position of the valve rod of the electromagnetic valve can be scraped through the spiral connecting rod, so that objects such as dust, impurities or scale attached to the inner wall are scraped away, and the situation that use of the device and the electromagnetic valve is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of valve stems, in particular to a valve stem component of a solenoid valve. Background Art

[0002] Solenoid valves are industrial equipment controlled by electromagnetics. They are basic automation components used to control fluids. They are actuators and are not limited to hydraulic or pneumatic. They are used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, and the accuracy and flexibility of the control can be guaranteed. There are many types of solenoid valves, and different solenoid valves play a role in different positions in the control system. The most commonly used ones are check valves, safety valves, directional control valves, speed regulating valves, etc.

[0003] A solenoid valve requires a valve stem, which is an important valve component used for transmission. It is connected to an actuator or handle on the top and directly drives the valve core to move or rotate to achieve valve switching or regulation.

[0004] When the valve stem of the existing solenoid valve is in use, dust often enters the installation position of the solenoid valve stem, causing the movement or rotation of the valve stem to be obstructed, and impurities such as scale at the installation position of the solenoid valve stem are difficult to remove; therefore, it does not meet the existing needs. In this regard, we propose a valve stem assembly for a solenoid valve. Utility Model Content

[0005] The purpose of the utility model is to provide a valve stem assembly for a solenoid valve, so as to solve the problems that the valve stem of the solenoid valve proposed in the above-mentioned background technology is often hindered in movement or rotation due to dust entering the installation position of the solenoid valve stem when in use, and impurities such as scale at the installation position of the solenoid valve stem are difficult to remove.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve stem assembly of a solenoid valve, comprising an upper valve stem, a sealing ring is movably mounted on the bottom end of the upper valve stem, a lower valve stem is movably mounted on the bottom end of the sealing ring, an upper dust baffle is movably mounted on the outer surface of the sealing ring, and three spiral connecting rods are fixedly mounted on the bottom end of the upper dust baffle.

[0007] Preferably, the sealing ring is made of rubber, a snap-in groove is provided on the outer surface of the sealing ring, a snap-in ring is fixedly mounted on the inner surface of the upper dust baffle plate, and the snap-in ring is movably snapped into the inside of the snap-in groove.

[0008] Preferably, a lower ash baffle plate is fixedly mounted on the bottom end of the spiral connecting rod, and the lower valve stem is movably inserted into the interior of the lower ash baffle plate.

[0009] Preferably, the outer surfaces of the upper valve stem near the bottom end and the lower valve stem near the top end are both provided with valve stem outer grooves, and the top and bottom ends of the sealing ring are both provided with mounting rings, which are movably snapped into the inside of the valve stem outer grooves.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model sets an upper dust baffle plate so that when the device is in use, the upper dust baffle plate can block the installation position of the device, thereby preventing dust from falling in and affecting the lifting or rotating operation of the device, and preventing it from affecting the use of the solenoid valve;

[0012] 2. The utility model sets a spiral connecting rod so that when the device is in use, when the device is lifted or rotated at the installation position, the spiral connecting rod can scrape the inner wall of the groove at the position of the solenoid valve stem, thereby scraping away dust, impurities or scale attached therein, so as to avoid affecting the use of the device and the solenoid valve;

[0013] 3. The utility model cooperates with the sealing ring and the upper ash baffle plate so that when the device needs maintenance, after the device is pulled out from the solenoid valve, the upper valve stem and the lower valve stem can be pulled outward from the top and bottom ends of the sealing ring respectively, so that the upper valve stem and the lower valve stem can be conveniently cleaned or replaced, and at the same time, the impurities scraped off by the spiral connecting rod between the upper ash baffle plate and the lower ash baffle plate can be cleared, thereby reducing the disassembly steps during maintenance and facilitating the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a cross-sectional front view of the utility model as a whole;

[0016] Figure 3 It is a cross-sectional top view of the position of the upper dust shield plate of the utility model;

[0017] Figure 4 For this utility model Figure 2 Schematic diagram of the local structure of part A.

[0018] In the figure: 1. upper valve stem; 2. lower valve stem; 3. sealing ring; 4. upper dust plate; 5. spiral connecting rod; 6. lower dust plate; 7. clamping ring; 8. clamping groove; 9. outer groove of valve stem; 10. mounting buckle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 4 The utility model provides an embodiment: a valve stem assembly of a solenoid valve, including an upper valve stem 1, a sealing ring 3 is movably installed at the bottom end of the upper valve stem 1, a lower valve stem 2 is movably installed at the bottom end of the sealing ring 3, an upper dust baffle 4 is movably installed on the outer surface of the sealing ring 3, and three spiral connecting rods 5 are fixedly installed at the bottom end of the upper dust baffle 4.

[0021] By setting the upper dust baffle plate 4, when the device is in use, the upper dust baffle plate 4 can block the installation position of the device, thereby preventing dust from falling in and affecting the lifting or rotating operation of the device, and preventing it from affecting the use of the solenoid valve.

[0022] By setting the spiral connecting rod 5, when the device is in use, when the device is lifted or rotated at the installed position, the spiral connecting rod 5 can scrape the inner wall of the groove at the valve stem position of the solenoid valve, thereby scraping off objects such as dust, impurities or scale attached therein to avoid affecting the use of the device and the solenoid valve.

[0023] The sealing ring 3 is made of rubber, and a clamping groove 8 is provided on the outer surface of the sealing ring 3 . A clamping ring 7 is fixedly mounted on the inner surface of the upper dust baffle plate 4 , and the clamping ring 7 is movably clamped into the inside of the clamping groove 8 .

[0024] A lower ash baffle plate 6 is fixedly mounted on the bottom end of the spiral connecting rod 5 , and the lower valve stem 2 is movably inserted into the interior of the lower ash baffle plate 6 .

[0025] The outer surfaces of the upper valve stem 1 near the bottom and the lower valve stem 2 near the top are both provided with valve stem outer grooves 9, and the top and bottom ends of the sealing ring 3 are both provided with mounting rings 10, which are movably snapped into the inside of the valve stem outer grooves 9.

[0026] Through the cooperation of the sealing ring 3 and the upper ash baffle plate 4, when the device needs maintenance, after the device is pulled out from the solenoid valve, the upper valve stem 1 and the lower valve stem 2 can be pulled outward from the top and bottom ends of the sealing ring 3 respectively, so that the upper valve stem 1 and the lower valve stem 2 can be conveniently cleaned or replaced, and at the same time, the impurities scraped off by the spiral connecting rod 5 between the upper ash baffle plate 4 and the lower ash baffle plate 6 can be cleared, thereby reducing the disassembly steps during maintenance and facilitating the use of the device.

[0027] When the valve stem assembly of the solenoid valve is in use, the upper dust blocking plate 4 can block the installation position of the device, thereby preventing dust from falling in and affecting the lifting or rotating operation of the device, and preventing it from affecting the use of the solenoid valve;

[0028] When the device is lifted or rotated at the installation position, the inner wall of the groove at the position of the solenoid valve stem can be scraped by the spiral connecting rod 5, so as to scrape off the dust, impurities or scale attached therein to avoid affecting the use of the device and the solenoid valve.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A valve stem assembly of a solenoid valve, comprising an upper valve stem (1), characterized in that: A sealing ring (3) is movably mounted on the bottom end of the upper valve stem (1), a lower valve stem (2) is movably mounted on the bottom end of the sealing ring (3), an upper dust baffle (4) is movably mounted on the outer surface of the sealing ring (3), and three spiral connecting rods (5) are fixedly mounted on the bottom end of the upper dust baffle (4).

2. The valve stem assembly of a solenoid valve according to claim 1, characterized in that: The sealing ring (3) is made of rubber, and a snap-fit ​​groove (8) is provided on the outer surface of the sealing ring (3). A snap-fit ​​ring (7) is fixedly mounted on the inner surface of the upper dust baffle plate (4), and the snap-fit ​​ring (7) is movably snapped into the interior of the snap-fit ​​groove (8).

3. The valve stem assembly of a solenoid valve according to claim 1, characterized in that: A lower ash baffle plate (6) is fixedly mounted on the bottom end of the spiral connecting rod (5), and the lower valve stem (2) is movably inserted into the interior of the lower ash baffle plate (6).

4. The valve stem assembly of a solenoid valve according to claim 1, characterized in that: The outer surfaces of the upper valve stem (1) near the bottom end and the lower valve stem (2) near the top end are both provided with valve stem outer grooves (9), and the top and bottom ends of the sealing ring (3) are both provided with mounting rings (10), and the mounting rings (10) are movably snapped into the inside of the valve stem outer grooves (9).

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