Electromagnetic valve spray gun

Abstract

The utility model discloses an electromagnetic valve spray gun which comprises a valve body, a liquid spray pipe and an electromagnetic valve assembly, the liquid spray pipe and the electromagnetic valve assembly are arranged on the valve body, and a valve element is arranged in the valve body. A liquid inlet is formed in the liquid spraying pipe, and the liquid inlet is communicated with the liquid inlet of the valve element through a liquid pipeline; a liquid inlet of the valve core is communicated with a central nozzle of the liquid spray pipe; the electromagnetic valve assembly comprises a driving piece and an electromagnet used for driving the driving piece to do axial movement. A reset spring is arranged between one end of the driving piece and the electromagnet, a sealing piece is arranged at the other end of the driving piece, and the sealing piece is promoted to block the liquid inlet of the valve element through the elastic force of the reset spring. The electromagnetic valve spray gun is better in sealing performance and stability, simple in structure and capable of meeting production scenes of specific harsh working conditions.

Description

Technical Field

[0001] The utility model relates to an electronic spray gun, in particular to a solenoid valve spray gun. Background Art

[0002] The solenoid valve spray gun controls the start and stop of the spray gun through the solenoid valve group; that is, by using the electromagnet to gain or lose power, the electromagnet gains or loses magnetism, thereby driving the valve core assembly to move, thereby opening or closing the liquid or gas channel in the spray gun, and then controlling the start and stop of the spray gun. However, the traditional solenoid valve spray gun has poor sealing performance and complex structure. The processing procedures are complicated and the processing time is long during the production process, resulting in a huge waste of resources, which not only fails to meet the use requirements, but also increases the production cost. Utility Model Content

[0003] In order to overcome the deficiencies in the prior art, the utility model provides a solenoid valve spray gun, which has better sealing and stability and a simple structure and can meet the needs of specific harsh working conditions and production scenarios.

[0004] The technical solution of the utility model to solve the above technical problems is:

[0005] A solenoid valve spray gun comprises a valve body, a liquid nozzle arranged on the valve body and a solenoid valve assembly, wherein a valve core is arranged in the valve body; a liquid inlet is arranged on the liquid nozzle, and the liquid inlet is connected with the liquid inlet of the valve core through a liquid pipeline; the liquid inlet of the valve core is connected with the central nozzle of the liquid nozzle; the solenoid valve assembly comprises a driving member and an electromagnet for driving the driving member to make axial movement, wherein a return spring is arranged between one end of the driving member and the electromagnet, and a sealing member is arranged at the other end, and the elastic force of the return spring prompts the sealing member to seal the liquid inlet of the valve core.

[0006] Preferably, the sealing element is a sealing steel ball.

[0007] Preferably, a groove cooperating with the sealing steel ball is provided at the liquid inlet of the valve core.

[0008] Preferably, the liquid nozzle is threadedly connected to the valve body.

[0009] Preferably, a plurality of sealing grooves are provided on the outer side of the valve core, and the plurality of sealing grooves are arranged along the axial direction of the valve core, and a sealing ring is provided in each group of sealing grooves; the outer diameter of the sealing ring is larger than the outer diameter of the valve core, and smaller than or equal to the inner diameter of the valve body.

[0010] Preferably, a plurality of groups of notches are provided in the sealing ring, the plurality of groups of notches are arranged along the circumferential direction of the sealing ring, and the notches in the plurality of groups of sealing rings correspond one to one, so that a groove is formed between the inner wall of the valve body and the notches, and the groove constitutes the liquid conduit.

[0011] Preferably, an O-ring is provided between the liquid nozzle and the valve core.

[0012] Preferably, the outer side surface of the valve body is provided with a balancing hole for balancing the hydraulic pressure inside and outside the valve body.

[0013] Preferably, a compression spring is arranged between the valve body and the valve core, one end of the compression spring acts on the valve body, and the other end acts on the valve core.

[0014] Preferably, the liquid inlets are in multiple groups, and the multiple groups of liquid inlets are arranged in a circle.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] 1. The solenoid valve spray gun of the utility model controls the opening and closing of the liquid inlet of the valve core by energizing or de-energizing the electromagnet. When it needs to be started, the electromagnet is energized, thereby driving the driving member to overcome the elastic force of the return spring and move, so that the sealing member is away from the liquid inlet of the valve core, thereby opening the liquid inlet of the valve core and allowing the liquid entering from the liquid pipeline to enter the liquid nozzle; when it needs to be closed, the electromagnet is de-energized, so that the driving member is reset under the elastic force of the return spring, so that the sealing member is re-sealed at the liquid inlet of the valve core.

[0017] 2. The solenoid valve spray gun of the utility model drives the driving part to move through the electromagnet and the return spring, thereby starting or closing the solenoid valve spray gun. Compared with the existing solenoid valve spray gun, the solenoid valve spray gun of the utility model has better sealing and stability, and a simple structure, which can meet specific harsh working conditions and production scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 and Figure 2 These are three-dimensional images of the electromagnetic valve spray gun of the utility model from two different perspectives.

[0019] Figure 3 It is a cross-sectional view.

[0020] Figure 4 It is a structural diagram of the valve core.

[0021] Figure 5 It is a schematic diagram of the structure of the sealing ring.

[0022] Figure 6 This is a schematic diagram of the liquid pipeline (the notch of the sealing ring is cut open).

[0023] Figure 7 Schematic diagram of liquid flow. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0025] See also Figure 1-Figure 7 The electromagnetic valve spray gun of the utility model comprises a valve body 1, a liquid nozzle 2 arranged on the valve body 1 and an electromagnetic valve assembly 3, wherein the liquid nozzle 2 is threadedly connected to the valve body 1; a valve core 4 is arranged in the valve body 1; a liquid inlet 201 is arranged on the liquid nozzle 2, and the liquid inlet 201 is communicated with the liquid inlet of the valve core 4 through a liquid pipeline 8, and the liquid outlet of the valve core 4 is communicated with the central nozzle 202 of the liquid nozzle 2; the electromagnetic valve assembly 3 comprises a driving member 303 and an electromagnet 301 for driving the driving member 303 to make axial movement, wherein a return spring 302 is arranged between one end of the driving member 303 and the electromagnet 301, and a sealing member is arranged at the other end, and the elastic force of the return spring 302 prompts the sealing member to seal the liquid inlet of the valve core 4.

[0026] When it is necessary to start, the electromagnet 301 is energized, thereby driving the driving member 303 to overcome the elastic force of the return spring 302, so that the sealing member moves away from the liquid inlet of the valve core 4, thereby opening the liquid inlet of the valve core 4, and allowing the liquid entering from the liquid pipeline 8 to enter the liquid nozzle 2; when it is necessary to close, the electromagnet 301 is de-energized, so that the driving member 303 is reset under the elastic force of the return spring 302, so that the sealing member is re-sealed at the liquid inlet of the valve core 4.

[0027] See also Figure 1-Figure 7 The sealing member is a sealing steel ball 304 ; a groove cooperating with the sealing steel ball 304 is provided at the liquid inlet of the valve core 4 .

[0028] See also Figure 1-Figure 7 , multiple groups of sealing grooves (three groups in this embodiment) are arranged on the outer side of the valve core 4, and the multiple groups of sealing grooves are arranged along the axial direction of the valve core 4, and a sealing ring 7 is arranged in each group of sealing grooves; the outer diameter of the sealing ring 7 is larger than the outer diameter of the valve core 4, and is smaller than or equal to the inner diameter of the valve body 1; in addition, to ensure that the liquid entering from the liquid inlet 201 can smoothly reach the liquid inlet of the valve core 4, multiple groups of notches 9 (three groups in this embodiment) are arranged in the sealing ring 7, and the multiple groups of notches 9 are arranged along the circumferential direction of the sealing ring 7, and the notches 9 in the multiple groups of sealing rings 7 correspond to each other one by one, so that there is a gap between the inner wall of the valve body 1 and the notch 9, thereby forming a groove, and the groove constitutes the liquid pipeline 8.

[0029] See also Figure 1-Figure 7 An O-ring 5 is provided between the liquid nozzle 2 and the valve core 4 for achieving sealing; in addition, in order to ensure the sealing effect, O-rings 5 ​​are also provided at the connections between other components of the utility model.

[0030] See also Figure 1-Figure 7 The outer side surface of the valve body 1 is provided with a balancing hole 101 for balancing the hydraulic pressure inside and outside the valve body 1.

[0031] See also Figure 1-Figure 7 A compression spring 6 is arranged between the valve body 1 and the valve core 4, one end of the compression spring 6 acts on the valve body 1, and the other end acts on the valve core 4; the elastic force of the compression spring 6 causes the valve core 4 to press against the liquid nozzle 2.

[0032] See also Figure 1-Figure 7 There are multiple groups of liquid inlets 201, which are arranged in a circle. The central nozzle 202 of the liquid nozzle 2 is located in the middle of the multiple groups of liquid inlets 201. The liquid enters from the liquid inlet 201, passes through the liquid pipeline 8, enters the liquid inlet of the valve core 4, and then passes through the liquid channel of the valve core 4 to enter the central nozzle 202 of the liquid nozzle 2.

[0033] The above is a preferred implementation mode of the present invention, but the implementation mode of the present invention is not limited by the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A solenoid valve spray gun, characterized in that: It includes a valve body, a liquid nozzle arranged on the valve body and an electromagnetic valve assembly, wherein a valve core is arranged in the valve body; a liquid inlet is arranged on the liquid nozzle, and the liquid inlet is connected with the liquid inlet of the valve core through a liquid pipeline; the liquid inlet of the valve core is connected with the central nozzle of the liquid nozzle; the electromagnetic valve assembly includes a driving member and an electromagnet for driving the driving member to make axial movement, wherein a return spring is arranged between one end of the driving member and the electromagnet, and a sealing member is arranged at the other end, and the elastic force of the return spring prompts the sealing member to seal the liquid inlet of the valve core.

2. The solenoid valve spray gun according to claim 1, characterized in that: The sealing element is a sealing steel ball.

3. The solenoid valve spray gun according to claim 2, characterized in that: A groove matching with the sealing steel ball is arranged at the liquid inlet of the valve core.

4. The solenoid valve spray gun according to claim 1, characterized in that: The liquid nozzle is threadedly connected to the valve body.

5. The solenoid valve spray gun according to claim 1, characterized in that: A plurality of sealing grooves are arranged on the outer side of the valve core, and the plurality of sealing grooves are arranged along the axial direction of the valve core. A sealing ring is arranged in each sealing groove. The outer diameter of the sealing ring is larger than the outer diameter of the valve core and smaller than or equal to the inner diameter of the valve body.

6. The solenoid valve spray gun according to claim 5, characterized in that: The sealing ring is provided with a plurality of groups of notches, which are arranged along the circumferential direction of the sealing ring, and the notches in the plurality of groups of sealing rings correspond to each other one by one, so that a groove is formed between the inner wall of the valve body and the notches, and the groove constitutes the liquid pipeline.

7. The solenoid valve spray gun according to claim 1, characterized in that: An O-ring is arranged between the liquid nozzle and the valve core.

8. The solenoid valve spray gun according to claim 1, characterized in that: The outer side surface of the valve body is provided with a balancing hole for balancing the hydraulic pressure inside and outside the valve body.

9. The solenoid valve spray gun according to claim 1, characterized in that: A compression spring is arranged between the valve body and the valve core, one end of the compression spring acts on the valve body, and the other end acts on the valve core.

10. The solenoid valve spray gun according to claim 1, characterized in that: The liquid inlets are in groups, and the groups of liquid inlets are arranged in a circle.

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