Sealing fin sprayer

Abstract

The utility model relates to the technical field of sprayers, in particular to a sprayer with a sealing piece, which comprises a valve body, a valve core and the sealing piece, a flow channel penetrating through two sides of the valve body is arranged in the valve body, the valve core is connected into the flow channel, one end of the valve core is a liquid inlet, the other end of the valve core is a liquid outlet, and the sealing piece is arranged in the valve body. And the valve core is arranged in the flow channel and is arranged at the liquid outlet of the valve core. The sprayer with the sealing piece can crack and spray when the pressure in the sprayer reaches a set value, and is simple in structure and low in manufacturing cost and maintenance cost.

Description

Technical Field

[0001] The utility model relates to a spray head, in particular to a spray head with a sealing sheet. Background Art

[0002] A pressure-activated nozzle means that the nozzle starts spraying water only when the liquid pressure inside the nozzle reaches the set value. Pressure-activated nozzles are generally used in work situations with special requirements for the starting pressure, and this type of nozzle can also be used as a relief valve to prevent excessive pressure in the system. The working principle of a common pressure-activated nozzle is: the nozzle is blocked by the spring pressing the valve core, and when the pressure inside the nozzle increases, the elastic force of the spring is offset to make the valve core move the nozzle to open for spraying liquid, thus unloading the pressure.

[0003] The above-mentioned type of pressure-activated sprinkler springs are prone to aging, are difficult to replace, and have high maintenance costs. Utility Model Content

[0004] Technical purpose: In order to overcome the deficiencies in the prior art, the utility model provides a sealing sheet nozzle, which simplifies the structure of the existing pressure-activated nozzle.

[0005] Technical solution: To achieve the above purpose, the utility model discloses a sealing sheet nozzle, comprising:

[0006] A valve body, wherein a flow channel is provided in the valve body and passes through two sides of the valve body;

[0007] A valve core, the valve core is connected to the flow channel, one end of the valve core is a liquid inlet, and the other end of the valve core is a liquid outlet;

[0008] The sealing sheet, the valve core is arranged in the flow channel and at the liquid outlet of the valve core.

[0009] Preferably, the sealing sheet is made of rubber.

[0010] Preferably, the flow channel has a large diameter section and a small diameter section that are interconnected, and a step surface is formed at the junction of the large diameter section and the small diameter section, and the sealing sheet is fixed on the step surface by the valve core pressing.

[0011] Preferably, the valve core includes an inner tube, a valve body and a valve port; the sealing sheet is arranged at one end of the inner tube, and the valve body is arranged at the other end of the inner tube; the valve port is provided with a cavity for accommodating the valve body, the valve port is connected to the valve body and a sealing ring is provided at the connection between the valve port and the valve body.

[0012] Preferably, the valve body is provided with flow guide holes penetrating through both sides, and the axial direction of the valve body is defined as a first direction. The axis of the flow guide holes is either parallel to the first direction or inclined relative to the first direction.

[0013] Preferably, the valve port is provided with a hole for liquid to flow into the cavity, and the cavity is conical near the hole.

[0014] Preferably, the thickness of the sealing sheet at the edge is greater than the thickness of the middle portion.

[0015] The sealing sheet nozzle disclosed in the utility model has the following technical effects:

[0016] The nozzle is covered with a sealing sheet at the liquid outlet, and the sealing sheet is made of nitrile rubber. When the pressure in the nozzle reaches the bearing limit of the sealing sheet, the sealing sheet automatically breaks to complete the water spraying. When it is used again, only a new sealing sheet needs to be replaced. The operation is simple and the maintenance cost is low. Compared with the existing spring-type pressure-opening nozzle, the structure is simpler, the cost is lower, and it is more competitive in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of the utility model;

[0018] Figure 2 It is a bottom view of the utility model;

[0019] Figure 3 It is a cross-sectional view of the utility model;

[0020] Figure 4 It is a top view of the valve body of the utility model;

[0021] Figure 5 This is a structural schematic diagram of the valve port of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the sealing sheet of the utility model;

[0023] Figure 7 Schematic diagram of the valve seat structure.

[0024] In the figure, 1. valve seat; 2. flow channel; 3. valve core; 4. liquid inlet; 5. liquid outlet; 6. sealing plate; 7. large diameter section; 8. small diameter section; 9. step surface; 10. inner tube; 11. valve body; 12. valve port; 13. cavity; 14. sealing ring; 15. guide hole; 16. hole. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1 To Attachment Figure 7 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0026] A sealing plate spray head comprises a valve seat 1, a valve core 3 and a sealing plate 6.

[0027] A flow channel 2 is provided in the valve seat 1, which passes through the upper and lower sides of the valve seat 1. The flow channel 2 includes a large diameter section 7 and a small diameter section 8 that are interconnected. A step surface 9 is formed at the intersection of the large diameter section 7 and the small diameter section 8. The valve core 3 is connected to the flow channel 2, and the valve core 3 presses and fixes the sealing sheet 6 on the step surface 9. The thickness at the edge of the sealing sheet 6 is greater than the thickness in the middle part. The edge of the sealing sheet 6 plays a sealing role. One end of the valve core 3 is a liquid inlet 4, and the other end of the valve core 3 is a liquid outlet 5. The liquid inlet 4 refers to the liquid flowing into the nozzle, and the liquid outlet 5 refers to the liquid flowing out of the nozzle. Specifically, the valve core 3 includes an inner cylinder 10, a valve body 11 and a valve port 12. The sealing sheet 6, the inner cylinder 10 and the valve body 11 are arranged linearly. The sealing sheet 6 is arranged at one end of the inner cylinder 10, and the valve body 11 is arranged at the other end of the inner cylinder 10. The valve port 12 is provided with a cavity 13 for accommodating the valve body 11, and the valve body 11 is arranged in the cavity 13. The outer surface of the valve port 12 is provided with a thread, and the valve port 12 is screwed with the valve seat 1 through the thread, thereby fixing the inner tube 10 and the valve body 11. In order to ensure sealing, a sealing ring 14 is provided at the connection between the valve port 12 and the valve seat 1.

[0028] The valve body 11 is provided with a guide hole 15 penetrating the upper and lower sides, and the axial direction of the valve body 11 is defined as a first direction (refer to the attached Figure 4 , the first direction is a vertically upward or vertically downward direction), the axis of the guide hole 15 is either parallel to the first direction or inclined to the first direction. Figure 5 The axis of the middle flow guide hole 15 is parallel to the first direction, and the axes of the other three flow guide holes 15 arranged around the flow guide hole 15 array are relatively inclined to the first direction. The liquid is ejected in a spiral shape through the three inclined flow guide holes 15. The valve port 12 is provided with a hole 16 for the liquid to flow into the cavity 13. The cavity 13 is conical near the hole 16, so that the liquid can be evenly discharged from the four flow guide holes 15.

[0029] The sealing sheet 6 is made of rubber, specifically, nitrile rubber or silicone rubber. When the pressure in the nozzle reaches the pressure limit of the sealing sheet 6, the middle part of the sealing sheet 6 ruptures and liquid sprays out; the ruptured sealing sheet 6 is easy to replace, and only the valve port 12 needs to be unscrewed from the valve seat 1 for replacement.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing sheet nozzle, characterized in that: include: A valve seat (1), wherein a flow channel (2) is provided in the valve seat (1) and passes through two sides of the valve seat (1); A valve core (3), the valve core (3) being connected to the flow channel (2), one end of the valve core (3) being a liquid inlet (4), and the other end of the valve core (3) being a liquid outlet (5); A sealing sheet (6), wherein the valve core (3) is arranged in the flow channel (2) and is arranged at the liquid outlet (5) of the valve core (3).

2. The sealing sheet nozzle according to claim 1, characterized in that: The sealing sheet (6) is made of rubber.

3. The sealing sheet nozzle according to claim 1, characterized in that: The flow channel (2) comprises a large diameter section (7) and a small diameter section (8) which are interconnected, a step surface (9) is formed at the junction of the large diameter section (7) and the small diameter section (8), and the sealing sheet (6) is fixed on the step surface (9) by the valve core (3) through pressing.

4. The sealing sheet nozzle according to claim 1, characterized in that: The valve core (3) comprises an inner tube (10), a valve body (11) and a valve port (12); the sealing sheet (6) is arranged at one end of the inner tube (10), and the valve body (11) is arranged at the other end of the inner tube (10); the valve port (12) is provided with a cavity (13) for accommodating the valve body (11); the valve port (12) is connected to the valve body (11) and a sealing ring (14) is provided at the connection between the valve port (12) and the valve body (11).

5. The sealing sheet nozzle according to claim 4, characterized in that: The valve body (11) is provided with a guide hole (15) passing through both sides, and the axial direction of the valve body (11) is defined as a first direction. The axis of the guide hole (15) is either parallel to the first direction or inclined relative to the first direction.

6. The sealing sheet nozzle according to claim 4, characterized in that: The valve port (12) is provided with a hole (16) for liquid to flow into the cavity (13), and the cavity (13) is conical near the hole (16).

7. The sealing sheet nozzle according to claim 1, characterized in that: The thickness of the sealing sheet (6) at the edge is greater than that in the middle.

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