Two-position three-way electromagnetic valve

Abstract

The utility model discloses a two-position three-way electromagnetic valve which comprises a valve body, a coil assembly, a movable iron core assembly and a static iron core assembly, the static iron core assembly and the movable iron core assembly are located in the coil assembly, the coil assembly is located on the valve body, the static iron core assembly comprises a static iron column and a fixing sleeve, and the static iron column is sleeved with the fixing sleeve. The static iron column is vertically inserted into the coil assembly, the fixing sleeve is connected to the peripheral side of the upper end of the static iron column in a sleeved mode through threads, the fixing sleeve abuts against the upper end face of the coil assembly, and an exhaust pipe is arranged at the upper end of the static iron column. The locking sleeve comprises a first fixing semi-ring and a second fixing semi-ring, the bottom end of the first fixing semi-ring and the bottom end of the second fixing semi-ring are rotationally connected to the upper end face of the fixing sleeve, and a locking piece is arranged between the first fixing semi-ring and the second fixing semi-ring. The effect of improving the stability of the hose sleeving the exhaust pipe is achieved.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a two-position three-way solenoid valve. Background Art

[0002] A solenoid valve is a basic automation component used to control the direction of medium movement. It is usually used in mechanical control and industrial valves, and can control the flow of the medium. Among them, a two-position three-way solenoid valve is one of the solenoid valves. The medium has two movement modes and three movement channels in the two-position three-way solenoid valve; the solenoid valve includes a valve body, a coil, a moving iron core assembly and a static iron core assembly. The coil is located on the valve body, the static iron core assembly is located on the moving iron core assembly, and the static iron core assembly and the moving iron core assembly are located in the coil. The upper end of the two-position three-way solenoid valve has an exhaust pipe. When the two-position three-way solenoid valve is working, the hose needs to be put on the exhaust pipe, and then fixed to the exhaust pipe through the elasticity of the hose, so that the stability of the hose on the exhaust pipe is low. Utility Model Content

[0003] The purpose of the utility model is to provide a two-position three-way solenoid valve in view of the defects and shortcomings of the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] It includes a valve body, a coil assembly, a moving iron core assembly and a static iron core assembly, the static iron core assembly and the moving iron core assembly are located in the coil assembly, the coil assembly is located on the valve body, the static iron core assembly includes a static iron column and a fixed sleeve, the static iron column is vertically inserted into the coil assembly, the fixed sleeve is threadedly sleeved on the circumference of the upper end of the static iron column, the fixed sleeve abuts against the upper end face of the coil assembly, the upper end of the static iron column has an exhaust pipe, which is characterized in that: the circumference of the exhaust pipe is sleeved with a locking sleeve, the locking sleeve includes a first fixed half ring and a second fixed half ring, the bottom ends of the first fixed half ring and the second fixed half ring are respectively rotatably connected to the upper end face of the fixed sleeve, and a locking piece is provided between the first fixed half ring and the second fixed half ring.

[0006] Preferably, the locking member is a locking half ring, both ends of which are rotatably connected to the corresponding two side walls of the upper end of the first fixed half ring, and the locking half ring is rotatably clamped to the side wall of the second fixed half ring.

[0007] Preferably, the inner circumference of the locking sleeve gradually decreases in diameter from top to bottom.

[0008] Preferably, a torsion spring is provided between the first fixed half ring and the second fixed half ring, and the torsion spring drives the first fixed half ring and the second fixed half ring to approach each other.

[0009] Preferably, the inner side walls of the upper ends of the first fixing half ring and the second fixing half ring are respectively provided with guide surfaces.

[0010] Preferably, a plurality of locking strips are evenly arranged on the inner side walls of the first fixing half ring and the second fixing half ring.

[0011] Preferably, a spring sheet is provided between the fixing sleeve and the coil assembly.

[0012] In summary, this application includes at least one of the following beneficial technical effects:

[0013] 1. After the hose is sleeved and fixed on the exhaust pipe, the first and second fixing half rings are rotated separately so that one side of the first fixing half ring fits against the side of the second fixing half ring, thereby clamping the hose. The locking half ring on the first fixing half ring is then rotated to clamp the locking half ring onto the side wall of the second fixing half ring, thereby assembling the first and second fixing half rings into a locking sleeve. The hose is clamped and locked to the exhaust pipe, thereby improving the stability of the hose sleeve on the exhaust pipe.

[0014] 2. When the hose needs to be sleeved and fixed to the exhaust pipe, after one end of the hose is close to the outer end of the exhaust pipe, the first and second fixing half rings are driven outward by the guide surface. The hose is then inserted into the locking sleeve. During this process, the torsion spring pulls the first and second fixing half rings closer together, eliminating the need to move the first and second fixing half rings, thereby improving the convenience of hose installation.

[0015] 3. The locking half ring locks and fixes the first fixing half ring and the second fixing half ring, and the multiple locking strips squeeze the hose, thereby improving the stability between the hose and the fixing sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional schematic diagram of the solenoid valve of the utility model;

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 It is an exploded schematic diagram of the locking sleeve of the utility model.

[0019] In the figure: 1. Valve body; 2. Coil assembly; 3. Moving iron core assembly; 4. Static iron core assembly; 5. Exhaust pipe; 6. Locking sleeve; 7. Torsion spring; 8. Guide surface; 9. Locking piece; 10. Locking half ring; 11. Locking strip; 12. Spring sheet; 13. Static iron column; 14. Fixed sleeve; 15. First fixed half ring; 16. Second fixed half ring. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] The embodiment of the present application discloses a two-position three-way solenoid valve.

[0022] Reference Figure 1 and Figure 2 , including a valve body 1, a coil assembly 2, a moving iron core assembly 3 and a static iron core assembly 4, the static iron core assembly 4 and the moving iron core assembly 3 are located in the coil assembly 2, the coil assembly 2 is located on the valve body 1, the static iron core assembly 4 includes a static iron column 13 and a fixed sleeve 14, the static iron column 13 is vertically inserted into the coil assembly 2, the fixed sleeve 14 is threadedly sleeved on the circumference of the upper end of the static iron column 13, the fixed sleeve 14 abuts against the upper end face of the coil assembly 2, the upper end of the static iron column 13 is vertically fixed with an exhaust pipe 5, the circumference of the exhaust pipe 5 is sleeved with a locking sleeve 6, the inner circumference of the locking sleeve 6 gradually decreases in diameter from top to bottom, the locking sleeve 6 includes a first fixed half ring 15 and a second fixed half ring 16, the outer side of the lower end of the first fixed half ring 15 is rotatably connected to the upper end face of the fixing sleeve 14, and the outer side of the lower end of the second fixed half ring 16 is rotatably connected to the upper end face of the fixing sleeve 14.

[0023] Reference Figure 3 There are torsion springs 7 on both sides between the first fixed half ring 15 and the second fixed half ring 16. One end of the torsion spring 7 is inserted and fixed in the inner wall of the first fixed half ring 15, and the other end is inserted and fixed in the inner wall of the second fixed half ring 16.

[0024] The inner sidewalls of the upper ends of the first and second fixing half rings 15, 16 are each provided with a guide surface 8. When the hose is sleeved and secured to the exhaust pipe 5, once one end of the hose approaches the outer end of the exhaust pipe 5, the guide surfaces 8 cause the first and second fixing half rings 15, 16 to rotate outward. The hose is then inserted into the locking sleeve 6. During this process, the torsion spring 7 pulls the first and second fixing half rings 15, 16 closer together, eliminating the need to move the first and second fixing half rings 15, 16.

[0025] A locking member 9 is provided between the upper ends of the first fixing half ring 15 and the upper ends of the second fixing half ring 16. The locking member 9 is a locking half ring 10 having a semicircular cross-section. The two ends of the locking half ring 10 are rotatably connected to the corresponding two side walls of the upper end of the first fixing half ring 15, and the locking half ring 10 is rotatably engaged with the side walls of the second fixing half ring 16. After the hose is sleeved and fixed to the exhaust pipe 5, the first fixing half ring 15 and the second fixing half ring 16 are rotated separately so that one side of the first fixing half ring 15 and one side of the second fixing half ring 16 are mutually abutted, thereby clamping the hose. The locking half ring 10 on the first fixing half ring 15 is then rotated to engage and secure the locking half ring 10 to the side walls of the second fixing half ring 16, thereby assembling the first fixing half ring 15 and the second fixing half ring 16 into a locking sleeve 6, thereby locking the hose to the exhaust pipe 5.

[0026] Multiple locking strips 11 are uniformly and integrally formed on the inner sidewalls of the first and second fixing half rings 15, 16. These strips 11 are arranged vertically. When the locking half rings 10 securely lock the first and second fixing half rings 15, 16, the strips 11 compress the hose, thereby increasing its stability within the locking sleeve 6.

[0027] Reference Figure 1 A spring sheet 12 is placed between the fixing sleeve 14 and the coil assembly 2. The upper end of the spring sheet 12 abuts against the lower end of the fixing sleeve 14, and the lower end of the spring sheet 12 abuts against the upper end of the coil assembly 2. The spring sheet 12 tightens the fixing sleeve 14.

[0028] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A two-position three-way solenoid valve, comprising a valve body (1), a coil assembly (2), a moving iron core assembly (3) and a static iron core assembly (4), wherein the static iron core assembly (4) and the moving iron core assembly (3) are located in the coil assembly (2), the coil assembly (2) is located on the valve body (1), the static iron core assembly (4) comprises a static iron column (13) and a fixed sleeve (14), the static iron column (13) is vertically inserted into the coil assembly (2), the fixed sleeve (14) is threadedly sleeved on the circumference of the upper end of the static iron column (13), the fixed sleeve (14) abuts against the upper end surface of the coil assembly (2), the upper end of the static iron column (13) has an exhaust pipe (5), and is characterized in that: A locking sleeve (6) is sleeved around the circumference of the exhaust pipe (5), and the locking sleeve (6) includes a first fixed half ring (15) and a second fixed half ring (16). The bottom ends of the first fixed half ring (15) and the second fixed half ring (16) are respectively rotatably connected to the upper end surface of the fixed sleeve (14), and a locking member (9) is provided between the first fixed half ring (15) and the second fixed half ring (16).

2. A two-position three-way solenoid valve according to claim 1, characterized in that: The locking member (9) is a locking half ring (10), and the two ends of the locking half ring (10) are respectively rotatably connected to the corresponding two side walls of the upper end of the first fixed half ring (15), and the locking half ring (10) is rotatably engaged with the side wall of the second fixed half ring (16).

3. A two-position three-way solenoid valve according to claim 1, characterized in that: The inner peripheral side of the locking sleeve (6) gradually decreases in diameter from top to bottom.

4. A two-position three-way solenoid valve according to claim 1, characterized in that: A torsion spring (7) is provided between the first fixed half ring (15) and the second fixed half ring (16), and the torsion spring (7) drives the first fixed half ring (15) and the second fixed half ring (16) to move closer to each other.

5. The two-position three-way solenoid valve according to claim 1, characterized in that: The inner side walls of the upper ends of the first fixed half ring (15) and the second fixed half ring (16) are respectively provided with guide surfaces (8).

6. The two-position three-way solenoid valve according to claim 1, characterized in that: The inner side walls of the first fixed half ring (15) and the second fixed half ring (16) are evenly provided with a plurality of locking strips (11).

7. A two-position three-way solenoid valve according to claim 1, characterized in that A spring sheet (12) is provided between the fixing sleeve (14) and the coil assembly (2).

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