Solenoid valve with lower inlet and side outlet

Abstract

The utility model discloses a lower inlet and side outlet electromagnetic valve which comprises a valve body, a shell installed on the valve body and a coil assembly arranged in the shell, a valve seat is installed at the bottom of the shell, a plurality of water outlet holes which are annularly distributed at equal intervals are formed in the outer side of the valve seat, a water inlet hole is formed in the middle of the bottom of the valve seat, and the water inlet hole is communicated with the water outlet holes. A water inlet hole is formed in the middle of the valve seat, a diaphragm is arranged on the inner side wall of the valve seat, a valve element matched with the valve seat is arranged in the middle of the diaphragm, a supporting ring is installed at the bottom of the valve seat, and a filter screen corresponding to the water inlet hole is installed at the bottom of the supporting ring. According to the electromagnetic valve, the valve element can be buffered through water, movement is more stable, the water hammer effect is reduced, vibration is avoided, the service life of the electromagnetic valve is prolonged, impurities in water can be filtered through the arranged filter screen, and the impurity resisting capacity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a bottom-inlet and side-outlet electromagnetic valve. Background Art

[0002] A solenoid valve is a mechanical device that uses electromagnetic force to control the flow of fluid. It is a basic automation component used to control fluid and is an actuator. It is widely used in industrial control and industrial fields, not limited to hydraulic and pneumatic systems.

[0003] Existing solenoid valves usually have water entering from the side of the diaphragm and exiting from the middle. However, this setting will cause severe water hammer when the solenoid valve is closed, which will not only cause the solenoid valve to vibrate and affect its service life, but may also cause the pipeline to rupture. Utility Model Content

[0004] The purpose of the utility model is to provide a bottom-inlet and side-outlet solenoid valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a bottom-inlet and side-outlet solenoid valve, comprising a valve body, a shell installed on the valve body, and a coil assembly arranged inside the shell, a valve seat is installed at the bottom of the shell, a plurality of water outlet holes equidistantly distributed in a ring shape are provided on the outside of the valve seat, a water inlet hole is provided in the middle of the bottom of the valve seat, the water inlet hole is connected with the water outlet hole, a diaphragm is provided on the inner side wall of the valve seat, a valve core matching the valve seat is provided in the middle of the diaphragm, a support ring is installed at the bottom of the valve seat, and a filter screen corresponding to the water inlet hole is installed at the bottom of the support ring.

[0006] As a preferred solution of the present invention, the filter screen and the water inlet are in the same straight line, and a spring is installed inside the housing and above the diaphragm.

[0007] As a preferred solution of the present invention, a first through hole is symmetrically provided on the outer side of the valve body, and a second through hole is provided on the bottom of the valve body, and the second through hole is communicated with the first through hole.

[0008] As a preferred solution of the present invention, a thread groove is provided on the top of the valve body, and an external thread matching the thread groove is provided on the outer side of the shell.

[0009] As a preferred solution of the present invention, a plurality of slots are provided on the outer side of the shell, and a clamping block matching the slots is integrally formed on the outer side of the valve seat.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention changes the direction of the water path, with water entering from the middle of the diaphragm and discharging from the side, so that when the solenoid valve is closed, the valve core can use water for buffering, the movement is smoother, the water hammer effect is reduced, vibration is avoided, and the service life of the solenoid valve is extended. The impurities in the water can be filtered through the provided filter to improve the ability to resist impurities. At the same time, the provided threaded groove, external thread, clamping block and clamping groove make the installation of the shell and the valve seat very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0012] Figure 2 It is a cross-sectional view of the utility model;

[0013] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0014] Figure 4 This is a schematic diagram of the structure of the valve body of the utility model after disassembly;

[0015] Figure 5 For this utility model Figure 4 Enlarged view of point B in the middle;

[0016] Figure 6 This is a schematic diagram of the structure of the diaphragm, valve seat and valve core of the utility model;

[0017] Figure 7 This is a structural diagram of the valve seat of the utility model;

[0018] Figure 8 This is a structural diagram of the diaphragm and valve core of the utility model.

[0019] In the figure: 1. Valve body; 2. Outer shell; 3. First through hole; 4. Coil assembly; 5. Valve core; 6. Filter screen; 7. Second through hole; 8. Water inlet hole; 9. Valve seat; 10. Spring; 11. External thread; 12. Diaphragm; 13. Thread groove; 14. Block; 15. Slot; 16. Water outlet hole; 17. Support ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 8 The utility model provides a technical solution: a bottom-inlet and side-outlet solenoid valve, comprising a valve body 1, a shell 2 mounted on the valve body 1, and a coil assembly 4 arranged inside the shell 2. The coil assembly 4 is a prior art and will not be described in detail. A valve seat 9 is mounted on the bottom of the shell 2. The outer side of the valve seat 9 is provided with a plurality of annular water outlet holes 16 equidistantly distributed. A water inlet hole 8 is provided in the middle of the bottom of the valve seat 9. When the solenoid valve is opened, water enters from the second through hole 7, passes through the water inlet hole 8, and enters the valve seat 9, and then flows out through the water outlet hole 16 and the first through hole 3 in sequence. When the solenoid valve is closed, the valve core 5 moves downward and uses water for buffering, making its movement more stable, reducing the water hammer effect, preventing vibration, and thus extending the service life of the solenoid valve. The water inlet hole 8 is connected to the water outlet hole 16. The inner wall of the valve seat 9 is provided with a diaphragm 12. The middle part of the diaphragm 12 is provided with a valve core 5 that matches the valve seat 9. A support ring 17 is installed at the bottom of the valve seat 9. A filter screen 6 corresponding to the water inlet hole 8 is installed at the bottom of the support ring 17. The filter screen 6 is used to filter impurities in the water to prevent impurities from entering, so as to improve the anti-impurity ability.

[0022] A spring 10 is installed inside the housing 2 and above the diaphragm 12 . The spring 10 is used to apply a downward thrust to the diaphragm 12 , thereby causing the valve core 5 to cling to the valve seat 9 .

[0023] The outer side of the valve body 1 is symmetrically provided with a first through hole 3 , and the bottom of the valve body 1 is provided with a second through hole 7 . The first through hole 3 is used for water outlet, and the second through hole 7 is used for water inflow. The second through hole 7 is connected with the first through hole 3 .

[0024] Among them, a thread groove 13 is provided on the top of the valve body 1, and an external thread 11 is provided on the outside of the shell 2 to match the thread groove 13. The thread groove 13 and the external thread 11 make the installation of the shell 2 very convenient. Only the external thread 11 needs to be screwed into the thread groove 13 to complete the installation and fixation of the shell 2.

[0025] Among them, the outer side of the shell 2 is provided with multiple slots 15, and the outer side of the valve seat 9 is integrally formed with a block 14 that matches the slot 15. The block 14 and the slot 15 are used to fix the valve seat 9 and the shell 2, making the installation steps of the valve seat 9 very convenient. You only need to insert the block 14 into the slot 15.

[0026] Specifically, when the solenoid valve is opened, water enters from the second through hole 7, is filtered by the filter 6, and then enters the valve seat 9 through the water inlet hole 8, and then flows out through the water outlet hole 16 and the first through hole 3 in sequence. When the solenoid valve is closed, the valve core 5 moves downward, and the valve core 5 uses water for buffering, making its movement more stable, reducing the water hammer effect, and preventing vibration.

[0027] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0029] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottom-inlet and side-outlet solenoid valve, comprising a valve body (1), a housing (2) mounted on the valve body (1), and a coil assembly (4) disposed inside the housing (2), characterized in that: A valve seat (9) is installed at the bottom of the housing (2), and a plurality of water outlet holes (16) are provided on the outer side of the valve seat (9) and are distributed in an annular shape and at equal intervals. A water inlet hole (8) is provided in the middle of the bottom of the valve seat (9), and the water inlet hole (8) is communicated with the water outlet hole (16). A diaphragm (12) is provided on the inner side wall of the valve seat (9), and a valve core (5) that matches the valve seat (9) is provided in the middle of the diaphragm (12). A support ring (17) is installed at the bottom of the valve seat (9), and a filter screen (6) corresponding to the water inlet hole (8) is installed at the bottom of the support ring (17).

2. The bottom-inlet and side-outlet solenoid valve according to claim 1, characterized in that: A spring (10) is installed inside the housing (2) and above the diaphragm (12).

3. The bottom-inlet and side-outlet solenoid valve according to claim 1, characterized in that: A first through hole (3) is symmetrically provided on the outer side of the valve body (1), and a second through hole (7) is provided at the bottom of the valve body (1), and the second through hole (7) is communicated with the first through hole (3).

4. The bottom-inlet and side-outlet solenoid valve according to claim 1, characterized in that: A thread groove (13) is provided on the top of the valve body (1), and an external thread (11) matching the thread groove (13) is provided on the outer side of the shell (2).

5. The bottom-inlet and side-outlet solenoid valve according to claim 1, characterized in that: The outer side of the housing (2) is provided with a plurality of clamping grooves (15), and the outer side of the valve seat (9) is integrally formed with a clamping block (14) that matches the clamping grooves (15).

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