Sprinkler head device

Abstract

The utility model provides a sprinkler head device which comprises a sprinkler head part, a protruding filter screen is arranged in the sprinkler head part and located on the same central extension line, a gap is reserved between the side wall of the filter screen and the side wall of the sprinkler head part, the side wall of the sprinkler head part and the filter screen are driven to form a first-stage turbulent flow area, and after the first-stage turbulent flow area is filtered through the filter screen, the first-stage turbulent flow area and the second-stage turbulent flow area form a second-stage turbulent flow area. A second-stage turbulent flow area is formed in a spraying area arranged at the top of the spray head and is sprayed out from the spraying area; impurities can be effectively filtered through the arranged filter screen, the service life of the spray head is effectively prolonged, the frequency of cleaning and replacing the spray head is reduced, in addition, the filter screen is reversely arranged, accumulation of incrustation scale is reduced, the self-cleaning function is achieved, the filtering effect is improved, and mounting and dismounting are convenient so that the filter screen can be cleaned; and the handheld rod made of carbon fibers is matched, so that the device is convenient to hold, light in weight and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of water supply pipeline equipment, specifically a spray head device. Background Technology

[0002] For some cleaning or irrigation equipment, spray nozzles are installed on the water pipe. Water drawn in from the pump enters the water pipe and is sprayed out from the nozzles installed on the water pipe. Since the liquid sprayed from the nozzle is in a fan shape, and this structure has certain requirements for water quality during use, the spray holes are prone to scaling and clogging after a period of use, resulting in uneven water spray. Some spray holes are partially blocked, causing the water jet direction to deviate, reducing the water pressure impact on the surface of the irrigation or cleaning area, and the sprayed water flow has a certain impact on the subsequent water jet distance. Therefore, the spray head needs to be cleaned or replaced frequently, which is a large consumable and the cleaning operation is relatively cumbersome. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a spray head device.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a spray head device, comprising: a spray head, wherein a protruding filter screen is provided inside the spray head and along the same central extension line, and a gap is left between the side wall of the filter screen and the side wall of the spray head, thereby driving the side wall of the spray head and the filter screen to form a primary turbulence zone, wherein the primary turbulence zone is filtered by the filter screen and flows into the filter screen and forms a secondary turbulence zone in the spray area provided at the top of the spray head, and is sprayed out from the spray area.

[0005] Furthermore, the filter screen is provided with a first positioning part, which is formed by an annular flat surface along the side wall of the filter screen, and the first positioning part is pressed between the end face of the spray head and the spraying area.

[0006] Furthermore, the spray head is designed as a hollow frustum shape, and the end of the spray head away from the spraying area gradually tapers in a converging shape and is provided with a threaded interface section.

[0007] Furthermore, the filter screen can be configured as any one of the following: frustum-shaped, conical, or cylindrical.

[0008] Furthermore, the number of mesh openings in the filter screen is greater than the number of mesh openings in the spraying area.

[0009] Furthermore, the axial length d of the filter screen is less than or equal to 2 / 3 of the axial length l of the spray head.

[0010] Furthermore, the spraying area includes: a connector that is connected to the spray head via an internal thread, the connector having a drain hole; when the connector is screwed tightly to the spray head, a sealing ring inside the connector is pressed between the first positioning part and the drain hole.

[0011] As a preferred embodiment of this application, a washer is fitted at the external thread end of the nozzle that mates with the connector.

[0012] As a preferred embodiment of this application, a hand handle is detachably mounted on the end of the threaded interface section, and the inner diameter of the hand handle is greater than or equal to the inner diameter of the end of the threaded interface section.

[0013] As a preferred embodiment of this application, a water-stop valve is installed at the end of the hand handle away from the threaded interface section.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This application uses a filter screen to filter impurities, effectively extending the service life of the nozzle and reducing the frequency of cleaning or replacing the nozzle. In addition, this application has a reverse filter screen setting, which helps to reduce scale buildup, provides a self-cleaning function, improves the filtration effect, and facilitates installation and disassembly for filter screen cleaning. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a side view of the present invention.

[0019] Figure 3 for Figure 3 AA section view

[0020] Figure 4 This is a cross-sectional view of the tubular spray head of the present invention.

[0021] Figure 5 This is a schematic cross-sectional view of the inverted filter screen in this utility model;

[0022] Figure 6 This is a cross-sectional view of the rectangular filter screen in this utility model.

[0023] Figure 7 This is a schematic diagram of the overall structure of the present invention with a handheld handle installed;

[0024] Figure 8 This is a schematic diagram of the usage state of another embodiment of the present invention;

[0025] In the diagram: 1. Spray head; 2. Filter screen; 3. First positioning part; 4. Spraying area; 41. Connector; 42. Leakage hole part; 5. Threaded interface section; 6. Sealing ring; 7. Washer; 8. Hand handle; 9. Water stop valve; 11. Primary turbulence zone; 12. Secondary turbulence zone. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 1-3 As shown, this application provides a spray head device, including: a spray head 1, and a protruding filter screen 2 provided inside the spray head 1 and along the same central extension line. A gap is left between the sidewall of the filter screen 2 and the sidewall of the spray head 1, causing the sidewall of the spray head 1 and the filter screen 2 to form a primary turbulence zone 11. After primary filtration by the filter screen 2, most of the accumulated sediment in the primary turbulence zone 11 is flushed and deposited at the connection between the filter screen 2 and the spray head 1. After flowing through the primary turbulence zone 11, the water flows into the filter screen 2 and forms a secondary turbulence zone 12 within the spray zone 4 provided at the top of the spray head 1, spraying out in a jetting pattern from the spray zone 4. The protrusion of the filter screen 2 is positioned away from the end of the spray zone 4 (i.e., the filter screen 2 is positioned in the opposite direction to the liquid inlet end of the spray head 1). This design structure allows this application to extend the service life of the spray zone 4, reduce scale buildup, enhance water flow stability, reduce water flow agitation and splashing, and improve the uniformity of the sprayed water.

[0028] The filter screen 2 is provided with a first positioning part 3, which is formed by an annular flat surface along the side wall of the filter screen 2. The first positioning part 3 is pressed between the end face of the nozzle 1 and the spraying area 4. A sedimentation and interception area is formed between the first positioning part 3 and the filter screen 2 in the first-stage turbulence zone 11. In this embodiment, the first positioning part 3 is connected to the filter screen 2, so that the impurities that do not pass through the filter screen 2 are mainly attached to the connection between the filter screen 2 and the first positioning part 3, so as to facilitate the regular maintenance and cleaning of the impurities on the filter screen 2.

[0029] In actual operation, such as Figure 3-6 As shown, according to the spray shape, the spray head 1 can be set as a round tube, a rectangular tube or an ellipse. However, the spray head 1 used in this application is preferably set as a hollow frustum shape. The end of the spray head 1 away from the spray area 4 is gradually set in a tapering shape, thereby increasing the pressure of the shower head when in use. It is also provided with a threaded interface section 5.

[0030] like Figure 3As shown, when the filter screen 2 can be configured as a frustum, in order to facilitate the accumulation of impurities at the first positioning part 3, the cross section of the filter screen 2 gradually expands towards the spraying area 4, which is the most preferred configuration in this application.

[0031] If the filter screen 2 is set to a conical shape, in order to facilitate the impurities to be flushed and accumulated at the first positioning part 3, the cross section of the filter screen 2 gradually expands towards the spray area 4. However, during use, the top is easily damaged by the impact force (since this structure is easy to imagine, it will not be shown in the figure, and the conical end of the filter screen 2 is set towards the liquid inlet end of the spray head 1).

[0032] like Figure 6 As shown, if the filter screen 2 of this application is set with a large area of ​​flat surface, due to the influence of water pressure, a depression will be generated on the end face of the filter screen 2, and there will be garbage accumulation on the end face of the filter screen 2 and at the connection between the filter screen 2 and the first positioning part 3. Although the filter screen 2 can also achieve the filtering function when it is set as a cone or cylinder, its service life is relatively short.

[0033] To further improve the service life of the spraying zone 4, the mesh number of the filter screen 2 is greater than that of the spraying zone 4. In actual operation, the mesh number of the filter screen 2 can be selected from 400 mesh to 100 mesh, with 100 mesh being preferred; the mesh number of the spraying zone 4 is between 80 mesh and 20 mesh, with 40 mesh being preferred.

[0034] In order to ensure that the liquid in the first turbulent zone generates a swirling force and can carry impurities into the connection between the filter screen 2 and the first positioning part 3, the axial length d of the filter screen 2 is less than or equal to 2 / 3 of the axial length l of the nozzle 1, and to ensure that the liquid in the second turbulent zone can be evenly sprayed out from the spraying area 4.

[0035] The spraying area 4 includes: a connector 41 connected to the spray head 1 in a tubular shape by an internal thread; the connector 41 has a wall edge and a drain hole 42; the drain hole 42 is fixed by abutting between the wall edge of the connector 41 and the end face of the spray head 1; the water outlet end of the drain hole 42 passes through the water inlet end and the water outlet end of the connector 41; when the connector 41 is tightened with the spray head 1, the sealing ring 6 inside the connector 41 is pressed between the first positioning part 3 and the drain hole 42, thereby making the drain hole 42 tightly attached to the connector 41.

[0036] To further improve the sealing of the nozzle 1 connection, a washer 7 is fitted at the end of the external thread of the nozzle 1 that mates with the connector 41.

[0037] like Figure 7As shown, to facilitate handheld operation of the portable shower head, a hand handle 8 is detachably mounted on the end of the threaded interface section 5. The hand handle 8 is preferably made of carbon fiber, a material that is lightweight, easy to hold, corrosion-resistant, durable, heat-resistant, and not easily damaged. To ensure water pressure, the inner diameter of the hand handle 8 is greater than or equal to the inner diameter of the end of the threaded interface section 5. The inner diameter of the hand handle 8 is between 0.5cm and 30cm, and in this embodiment, it is preferably 2.5cm. The inner diameter of the end of the threaded interface section 5 is between 0.5cm and 25cm, with 2.5cm being the preferred size.

[0038] When the inner diameter of the hand lever 8 is greater than the inner diameter of the end of the threaded interface section 5, the water pressure delivered to the threaded interface section 5 will increase.

[0039] When the inner diameter of the hand lever 8 is equal to the inner diameter of the threaded interface section 5, the water pressure delivered to the threaded interface section 5 will increase.

[0040] To facilitate manual switching of spraying, a water stop valve 9 is also installed at the end of the hand handle 8 away from the threaded interface section 5.

[0041] Example 2

[0042] like Figure 8 This application also provides an embodiment that differs from Embodiment 1 in that the mesh size of the filter screen 2 in this embodiment is 0.2 mm, and the ratio of the cross-sectional area of ​​the nozzle 1 to the cross-sectional area of ​​the threaded interface section 5 is 1.2-2:1. (The specific installation and usage method of this embodiment is as follows...) Figure 8 As shown: One embodiment consists of a spray head 1, a threaded interface section 5, and a stop valve 9 in sequence. The internal structure of the spray head 1 is consistent with the scheme of embodiment 1 above, and it has a double-layer filtration effect. In addition, this embodiment can also be composed of a spray head 1, a threaded interface section 5, a hand handle 8, and a stop valve 9. Since this structure is easy to imagine, no additional drawings are added. The hand handle 8 can be set on the threaded interface section 5 or the stop valve 9, both of which can achieve the use of this application. In addition, it should be noted that this embodiment is made of copper precision 1260-hole shower head. Since copper has a bactericidal effect, a double-layer filter screen is added inside. It is a high-end special super fine hole shower head for bonsai small and medium-sized plants, which is super gentle on plants and protects the soil from damage. Its threaded interface section 5 is designed with an extended design, which is equivalent to a handle. It is made of pure copper with a thickness of 1 mm. The head is a one-piece brass design. The nut is detachable for easy cleaning. The tail is designed as a quick connector to be used with different sizes of water pipes for easier connection.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A spray head device, characterized in that, include: The nozzle (1) has a raised filter screen (2) inside the nozzle (1) and located on the same central extension line. The side wall of the filter screen (2) and the side wall of the nozzle (1) are separated, which causes the side wall of the nozzle (1) and the filter screen (2) to form a primary turbulence zone (11). After being filtered by the filter screen (2), the primary turbulence zone (11) flows into the filter screen (2) and forms a secondary turbulence zone (12) in the spraying area (4) provided at the top of the nozzle (1), and is sprayed out from the spraying area (4).

2. The spray head device as described in claim 1, characterized in that, The filter (2) is provided with a first positioning part (3), which is formed by an annular flat surface along the side wall of the filter (2). The first positioning part (3) is pressed between the end face of the nozzle (1) and the spraying area (4).

3. A spray head device as described in claim 2, characterized in that, The nozzle (1) is hollow in the shape of a frustum. The end of the nozzle (1) away from the spraying area (4) gradually tapers and is provided with a threaded interface section (5).

4. A spray head device as described in claim 3, characterized in that, The filter screen (2) can be any one of frustum, cone or cylinder.

5. A spray head device as described in claim 4, characterized in that, The number of mesh openings in the filter screen (2) is greater than the number of mesh openings in the spraying area (4).

6. A spray head device as described in claim 4, characterized in that, The axial length d of the filter (2) is less than or equal to 2 / 3 of the axial length l of the nozzle (1).

7. A spray head device as described in claim 2, characterized in that, The spraying area (4) includes: a connector (41) connected to the spray head (1) by an internal thread, and a drain hole (42) is provided in the connector (41); when the connector (41) is tightened with the spray head (1), a sealing ring (6) in the connector (41) is pressed between the first positioning part (3) and the drain hole (42).

8. A spray head device as described in claim 7, characterized in that, A washer (7) is fitted at the external thread end of the nozzle (1) that mates with the connector (41).

9. A spray head device as described in claim 3, characterized in that, The end of the threaded interface section (5) is detachably fitted with a hand handle (8), the inner diameter of the hand handle (8) being greater than or equal to the inner diameter of the end of the threaded interface section (5).

10. A spray head device as described in claim 9, characterized in that, A water stop valve (9) is installed at the end of the hand handle (8) away from the threaded interface section (5).

Images