CN216923385U

CN216923385U - Electromagnetic water valve

Info

Publication number: CN216923385U
Application number: CN202220541233.2U
Authority: CN
Inventors: 陈晓齐; 何雄锋
Original assignee: NINGBO YINZHOU TONLY HYDRAULIC ELECTRICAL FACTORY
Current assignee: NINGBO YINZHOU TONLY HYDRAULIC ELECTRICAL FACTORY
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-07-08
Anticipated expiration: 2032-03-11

Abstract

The utility model provides an electromagnetic water valve: the water valve comprises a water valve shell, a coil assembly arranged in the water valve shell and a sleeve penetrating through the coil assembly, wherein one end of the sleeve is connected with a pipe cap, and a movable iron core is connected in the sleeve in a sliding manner; a plurality of positioning bulges are circumferentially distributed on the inner wall of one end, close to the pipe cap, of the sleeve, and the insertion end of the pipe cap is in interference fit with the positioning bulges. After the insertion end of the pipe cap is inserted into the sleeve, the pipe cap is tightly matched with the positioning bulge, so that the pipe cap is accurately preassembled in the sleeve, and then the welding flux is filled in the gap between the pipe cap and the inner wall of the sleeve for welding. Through the pipe cap and the protruding tight fit of location, make follow-up welding process simple and convenient, improve welding efficiency, and can guarantee that pipe cap and all positions of sleeve pipe inner wall can both weld in place, prevent that the condition that the pipe cap drops from taking place.

Description

Electromagnetic water valve

Technical Field

The utility model relates to the technical field of valve switches, in particular to an electromagnetic water valve.

Background

The electromagnetic water valve controls the movable iron core in the sleeve to move left and right through the switch of the electromagnetic coil component circuit, so as to push the valve core of the water valve and realize the switching or reversing of a water path. In order to prevent the movable iron core from falling out of the sleeve, a pipe cap is arranged at the other end of the sleeve. Because the kinetic energy of the movable iron core is larger during movement, the pipe cap is usually inserted into the sleeve and then directly welded at the end of the sleeve in a brazing mode. The pipe cap and the inner wall of the sleeve are spaced, so that solder is conveniently filled, and welding is firmer. However, since a gap is formed between the pipe cap and the inner wall of the sleeve, the pipe cap needs to be clamped firstly during welding and then the welding is carried out, so that the operation is troublesome; moreover, the pipe cap is easy to incline when being welded, so that local welding is not firm, and the risk of falling off of the pipe cap is increased; therefore, the welding level of workers is very tested when the pipe cap is welded.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the defects of the prior art are overcome, and the electromagnetic water valve with the pipe cap on the sleeve pipe, which is convenient to install, and accurate in installation position is provided.

The technical scheme of the utility model is to provide an electromagnetic water valve with the following structure: the water valve comprises a water valve shell, a coil assembly arranged in the water valve shell and a sleeve penetrating through the coil assembly, wherein one end of the sleeve is connected with a pipe cap, and a movable iron core is connected in the sleeve in a sliding manner; a plurality of positioning bulges are circumferentially distributed on the inner wall of one end, close to the pipe cap, of the sleeve, and the insertion end of the pipe cap is in interference fit with the positioning bulges.

After adopting the structure, compared with the prior art, the electromagnetic water valve has the following advantages:

after the insertion end of the pipe cap is inserted into the sleeve, the pipe cap is tightly matched with the positioning bulge, so that the pipe cap is accurately preassembled in the sleeve, and then the welding flux is filled in the gap between the pipe cap and the inner wall of the sleeve for welding. Through the pipe cap and the protruding tight fit of location, make follow-up welding process simple and convenient, improve welding efficiency, and can guarantee that pipe cap and all positions of sleeve pipe inner wall can both weld in place, prevent that the condition that the pipe cap drops from taking place.

Preferably, a plurality of concave parts are circumferentially distributed on the outer wall of the sleeve, the concave parts radially extend into the sleeve, and the part of the concave parts in the sleeve forms the positioning protrusion. Therefore, the processing of positioning the protrusion in the sleeve can be facilitated, the positioning protrusion can be extruded more easily when the pipe cap is knocked into the sleeve, and the pipe cap can be conveniently inserted into the sleeve.

Preferably, the positioning protrusions on the inner peripheral wall of the sleeve are arranged in a hemispherical shape. Therefore, the peripheral wall of the positioning protrusion is smooth and has radian, and the pipe cap can be conveniently knocked into the sleeve.

Preferably, the number of the positioning protrusions is three, and the positioning protrusions are evenly distributed along the circumferential direction of the inner circumferential wall of the sleeve. Therefore, the pipe cap can be stably positioned, and the difficulty in assembly caused by too many positioning bulges is avoided.

Preferably, the outer peripheral wall of the cap is provided with a radially extending annular projection in the middle, and the outer diameter of the annular projection is larger than the inner diameter of the sleeve. The annular bulge can prevent the pipe cap from being inserted too deeply into the sleeve to influence the movement of the movable iron core.

Preferably, an annular groove is formed in the outer peripheral wall of the cap. The annular groove can be filled with solder conveniently, so that the welding between the pipe cap and the sleeve is firmer.

Preferably, the outer edge of the end part of the insertion end of the pipe cap is provided with a bevel. The inclined plane can be convenient for knocking the pipe cap into the sleeve.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a half-sectional view of the present invention.

Fig. 3 is a schematic structural view of a sleeve and a cap according to the present invention.

Description of the reference numerals:

1. the water valve comprises a water valve shell, 2, a coil assembly, 3, a sleeve, 4, a pipe cap, 5, a movable iron core, 6, a positioning protrusion, 7, a concave part, 8, an annular protrusion, 9, an annular groove, 10 and an inclined plane.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus are not to be construed as limiting the present invention, and the terms "first", "second", etc. are only names for distinguishing parts and have no primary or secondary relationship, and thus are not to be construed as limiting the present invention.

As shown in fig. 1, 2 and 3;

the utility model discloses an electromagnetic water valve: the water valve comprises a water valve shell 1, a coil assembly 2 arranged in the water valve shell 1 and a sleeve 3 penetrating the coil assembly 2, wherein one end of the sleeve 3 is connected with a pipe cap 4, and a movable iron core 5 is slidably connected in the sleeve 3; a plurality of positioning bulges 6 are circumferentially distributed on the inner wall of the sleeve 3 close to one end of the pipe cap 4, and the insertion end of the pipe cap 4 is in interference fit with the positioning bulges 6. The coil assembly 2 is a conventional arrangement of an electromagnetic water valve, as is known in the art, and therefore will not be described in detail herein.

After the insertion end of the cap 4 is inserted into the sleeve 3, the cap 4 is tightly fitted with the positioning protrusion 6, so that the cap 4 is accurately pre-installed in the sleeve 3, and then the gap between the cap 4 and the inner wall of the sleeve 3 is filled with solder for welding. Through pipe cap 4 and the protruding 6 tight fit of location, make follow-up welding process simple and convenient, improve welding efficiency, and can guarantee that pipe cap 4 and each position of sleeve pipe 3 inner wall can both weld in place, prevent that the condition that pipe cap 4 drops from taking place.

Circumferential distribution has a plurality of concave part 7 on sleeve pipe 3's the outer wall, and concave part 7 radially extends to in the sleeve pipe 3, and the part that concave part 7 is located sleeve pipe 3 forms location arch 6 can make things convenient for the processing of location arch 6 in the sleeve pipe 3 like this, and extrudees the location arch 6 more easily when cap 4 knocks into in the sleeve pipe 3, makes things convenient for cap 4 to insert in the sleeve pipe 3. The protruding 6 of location on the internal perisporium of sleeve 3 is the hemisphere setting, can make the protruding 6 periphery wall of location smooth and have the radian, conveniently beats pipe cap 4 into in the sleeve 3.

The number of the positioning protrusions 6 can be three, and the positioning protrusions are evenly distributed along the circumferential direction of the inner circumferential wall of the sleeve 3. Therefore, the pipe cap 4 can be stably positioned, and the assembly difficulty caused by too many positioning bulges 6 is avoided.

The middle of the outer peripheral wall of the pipe cap 4 is provided with a radially extending annular protrusion 8, and the outer diameter of the annular protrusion 8 is larger than the inner diameter of the sleeve 3. The annular protrusion 8 prevents the cap 4 from being inserted too far into the sleeve 3 and affecting the movement of the plunger 5. The annular groove 9 is formed in the peripheral wall of the pipe cap 4, so that solder can be filled conveniently, and welding between the pipe cap 4 and the sleeve 3 is firmer. The outer edge of the end of the insertion end of the pipe cap 4 is provided with an inclined plane 10, so that the pipe cap 4 can be conveniently knocked into the sleeve 3.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein should be covered within the scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the appended claims.

Claims

1. An electromagnetic water valve comprises a water valve shell (1), a coil assembly (2) arranged in the water valve shell (1) and a sleeve (3) penetrating through the coil assembly (2), wherein one end of the sleeve (3) is connected with a pipe cap (4), and a movable iron core (5) is slidably connected in the sleeve (3); the method is characterized in that: a plurality of positioning bulges (6) are circumferentially distributed on the inner wall of one end, close to the pipe cap (4), of the sleeve (3), and the insertion end of the pipe cap (4) is in interference fit with the positioning bulges (6).

2. The electromagnetic water valve of claim 1, wherein: a plurality of concave parts (7) are circumferentially distributed on the outer wall of the sleeve (3), the concave parts (7) radially extend into the sleeve (3), and the part of the concave parts (7) located in the sleeve (3) forms the positioning protrusions (6).

3. The electromagnetic water valve of claim 2, wherein: the positioning protrusions (6) on the inner peripheral wall of the sleeve (3) are arranged in a hemispherical shape.

4. The electromagnetic water valve of claim 3, wherein: the number of the positioning bulges (6) is three, and the positioning bulges are uniformly distributed along the circumferential direction of the inner circumferential wall of the sleeve (3).

5. The electromagnetic water valve of claim 1, wherein: the middle of pipe cap (4) periphery wall is equipped with radial extension's annular bulge (8), the external diameter size of annular bulge (8) is greater than the internal diameter size of sleeve pipe (3).

6. The electromagnetic water valve of claim 1 or 5, wherein: and an annular groove (9) is formed in the peripheral wall of the pipe cap (4).

7. The electromagnetic water valve of claim 1, wherein: the outer edge of the end part of the insertion end of the pipe cap (4) is provided with an inclined plane (10).