Overflow-stopping telescopic spray head

Abstract

The utility model discloses an overflow-stopping telescopic sprayer, which belongs to the technical field of irrigation supplies and comprises a base, a main water inlet and a through hole are arranged on the base, and a connecting thread is fixedly arranged on the main water inlet. A through hole is formed in the base, a placement pipe is fixedly arranged on the base, the placement pipe and the through hole are coaxially arranged, a pressure water inlet and a circulation outlet are formed in the placement pipe, a first limiting table is fixedly arranged on the circulation outlet, and a water outlet pipe is arranged in the placement pipe in a sliding mode; a circulation inlet and a main water outlet are formed in the water outlet pipe, an extension table is fixedly arranged at the position, close to the circulation inlet, of the water outlet pipe, a second limiting table is fixedly arranged on the extension table, the water outlet pipe is sleeved with a spring, and the spring is placed between the first limiting table and the second limiting table; the sealing structure has the advantage of being good in sealing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of irrigation supplies, in particular to a spill-stopping telescopic sprinkler. Background Art

[0002] On existing landscape lawns, watering operations are usually carried out through pre-laid pipes and telescopic sprinklers installed at the tail end of the pipes. When the lawn needs to be watered, the valve at the water inlet end of the pipe is opened, and the telescopic sprinkler is lifted up by water pressure, and water splashes out from the sprinkler, thereby achieving watering of the lawn.

[0003] However, in actual use, since one pipeline is usually connected to multiple sprinklers and irrigates several grasses of different heights, after the irrigation operation is completed and the valve at the water inlet end of the pipeline is closed, the residual water in the pipeline will still generate pressure on the sprinkler located at the bottom of the same pipeline, and the retractable sprinkler under pressure will be lifted up, and the residual water in the pipeline will overflow from the sprinkler, resulting in the defect of poor sealing performance of the sprinkler.

[0004] Based on this, the utility model designs a spill-stop telescopic nozzle to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a spill-proof telescopic nozzle to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it includes a base, a main water inlet and a through hole are provided on the base, a connecting thread is fixedly provided on the main water inlet; a placement tube is fixedly provided on the base, the placement tube and the through hole are coaxially arranged, a pressure water inlet and a flow outlet are provided on the placement tube, a first limit platform is fixedly provided on the flow outlet, a water outlet pipe is slidably provided in the placement tube; a flow inlet and a main water outlet are provided on the water outlet pipe, an extension platform is fixedly provided on the water outlet pipe near the flow inlet, a second limit platform is fixedly provided on the extension platform, a spring is sleeved on the water outlet pipe, and the spring is placed between the first limit platform and the second limit platform.

[0007] Preferably, a leak-proof rubber ring is fixedly provided on the through hole.

[0008] Preferably, a blocking curling edge is fixedly provided on the leakage-proof rubber ring.

[0009] Preferably, the main water outlet is oriented tangentially to the water outlet pipe, and a plurality of main water outlets are provided.

[0010] To sum up, the present application has the following beneficial technical effects: by setting the water outlet pipe, the water outlet effect of the nozzle is improved; when not in use, the water outlet pipe that falls into the placement tube will be sealed through the hole, and at the same time, a leak-proof rubber ring is used to tighten the through hole and the water outlet pipe, so that the nozzle forms a sealed whole, and the residual water pressure cannot lift the water outlet pipe or seep out from the gap, which has the advantage of good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 This is a schematic diagram of the installation of the water outlet pipe in this embodiment;

[0013] Figure 2 This is a schematic diagram of the base structure of this embodiment;

[0014] Figure 3 This is a schematic diagram of the water outlet pipe structure of this embodiment;

[0015] Figure 4 This is a schematic diagram of the water outlet structure of this embodiment;

[0016] Figure 5 This is a schematic diagram of the structure of the water outlet pipe of this embodiment when it is working;

[0017] Figure 6 This is a structural schematic diagram of the embodiment when the water outlet pipe is not working.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Base; 2. Main water inlet; 3. Through hole; 4. Leak-proof rubber ring; 5. Anti-blocking curling edge; 6. Connecting thread; 7. Placement tube; 8. Pressure water inlet; 9. Circulation outlet; 10. First limit platform; 11. Water outlet pipe; 12. Circulation inlet; 13. Main water outlet; 14. Extension platform; 15. Second limit platform; 16. Spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The following is combined with Figure 1 —6 Provide further details of this application.

[0022] A spill-stop telescopic nozzle comprises a base 1.

[0023] A main water inlet 2 and a through hole 3 are provided on the base 1 . A leak-proof rubber ring 4 is fixedly provided on the through hole 3 . A blocking edge 5 is fixedly provided on the leak-proof rubber ring 4 . A connecting thread 6 is fixedly provided on the main water inlet 2 .

[0024] A placement tube 7 is fixedly provided on the base 1. The placement tube 7 and the through hole 3 are arranged coaxially. A pressure water inlet 8 and a flow outlet 9 are opened on the placement tube 7. A first limit platform 10 is fixedly provided on the flow outlet 9. A water outlet pipe 11 is slidably provided in the placement tube 7.

[0025] A circulation inlet 12 and a main water outlet 13 are provided on the water outlet pipe 11. An extension platform 14 is fixedly provided on the water outlet pipe 11 near the circulation inlet 12. A second limit platform 15 is fixedly provided on the extension platform 14. A spring 16 is sleeved on the water outlet pipe 11, and the spring 16 is placed between the first limit platform 10 and the second limit platform 15. The main water outlet 13 is tangent to the water outlet pipe 11, and multiple main water outlets 13 are provided.

[0026] The implementation principle of this embodiment is: when installing the nozzle, the nozzle is installed on the main water supply pipe through the connecting thread 6; Figure 5 As shown, when in use, water pressure enters the placement tube 7 through the pressure water inlet 8 and pushes the second limit platform 15 away from the pressure water inlet 8. During this process, the second limit platform 15 compresses the spring 16 and lifts the water outlet pipe 11 from the through hole 3. During the lifting process of the water outlet pipe 11, the leak-proof rubber ring 4 is pressed against the water outlet pipe 11 until the circulation inlet 12 is connected to the circulation outlet 9, and water flows from the circulation outlet 9 to the circulation inlet 12, and then sprays out from the main water outlet 13. The sprayed water pushes the main water outlet 13 in reverse, causing the water outlet pipe 11 to rotate, and the sprayed water evenly covers the grass; as shown in FIG. Figure 6 As shown, when the main water supply pipe is closed, the pressure in the pressure water inlet 8 gradually decreases, and the spring 16 acts to push the second limit platform 15 away from the first limit platform 10, so that the flow outlet 9 and the flow inlet 12 are disconnected, and the water outlet pipe 11 gradually falls into the placement tube 7. The anti-blocking curled edge 5 prevents the leak-proof rubber ring 4 from being stuck on the main water outlet 13, until the water outlet pipe 11 is completely placed in the placement tube 7, the leak-proof rubber ring 4 is pressed against the through hole 3 to seal the gap between the through hole 3 and the water outlet pipe 11 to prevent water leakage.

[0027] By setting the water outlet pipe 11, the water outlet effect of the nozzle is improved; when not in use, the water outlet pipe 11 dropped into the placement tube 7 will be sealed by the through hole 3, and the through hole 3 and the water outlet pipe 11 will be pressed tightly by the leak-proof rubber ring 4, so that the nozzle forms a sealed whole, and the residual water pressure cannot lift up the water outlet pipe 11 or seep out from the gap, which has the advantage of good sealing effect.

[0028] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spill-stop telescopic nozzle, characterized in that: The invention comprises a base (1), wherein the base (1) is provided with a main water inlet (2) and a through hole (3), and the main water inlet (2) is fixedly provided with a connecting thread (6); the base (1) is fixedly provided with a placement tube (7), the placement tube (7) and the through hole (3) are coaxially arranged, the placement tube (7) is provided with a pressure water inlet (8) and a flow outlet (9), the flow outlet (9) is fixedly provided with a first limit platform (10), and the placement tube (7) A water outlet pipe (11) is slidably arranged in the middle; a circulation inlet (12) and a main water outlet (13) are provided on the water outlet pipe (11); an extension platform (14) is fixedly arranged on the water outlet pipe (11) near the circulation inlet (12); a second limit platform (15) is fixedly arranged on the extension platform (14); a spring (16) is sleeved on the water outlet pipe (11); the spring (16) is placed between the first limit platform (10) and the second limit platform (15).

2. The anti-overflow telescopic nozzle according to claim 1, characterized in that: A leak-proof rubber ring (4) is fixedly arranged on the through hole (3).

3. The anti-overflow telescopic nozzle according to claim 2, characterized in that: The anti-leakage rubber ring (4) is fixedly provided with an anti-blocking curling edge (5).

4. The anti-overflow telescopic nozzle according to claim 1, characterized in that: The main water outlet (13) is oriented tangentially to the water outlet pipe (11), and a plurality of main water outlets (13) are provided.

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