Swivel tube with adjustable nozzle angle

Abstract

Swivel tube with adjustable nozzle angle, comprising a base (1) and a water supply tube (2) pivotably mounted on the base, wherein a water supply chamber (23) is arranged in the water supply tube, a nozzle cover (3) is provided on the water supply tube, several flexible nozzles (6) are arranged between the water supply tube (2) and the nozzle cover (3), and several sliding plates (7) are arranged on the several flexible nozzles;wherein the lower ends of the several flexible nozzles (6) are simultaneously in tight contact with the water supply chamber (23), and the upper ends of the several flexible nozzles (6) are guided through the sliding plates (7) and protrude from the nozzle cover (3), characterized in that a drive mechanism (4) and a drive block (5) are provided at an end section of the water supply pipe (2), wherein one end of the sliding plates (7) is movably attached to the drive block (5), the drive mechanism (4) drives the drive block (5) to axial reciprocating movement and simultaneously drives one end of the sliding plates (7) to perform a lifting and lowering reciprocating movement on the drive block (5), whereby several flexible nozzles (6) are synchronously inclined into several spray angles.

Description

TECHNICAL AREA

[0001] The present utility model application relates to a swivel pipe for garden irrigation, in particular a swivel pipe with an adjustable nozzle angle. STATE OF THE ART

[0002] A swivel hose reel with an adjustable nozzle angle can be used for garden irrigation. The structure consists primarily of a base, a water supply pipe mounted on it, a water supply chamber inside the pipe, a nozzle cover on the pipe, several flexible nozzles between the pipe and the nozzle cover, and several sliding plates on the flexible nozzles. The lower ends of these flexible nozzles are in close contact with the water supply chamber, while the upper ends extend through the sliding plates and protrude from the nozzle cover. In operation, the sliding plates are driven, causing the flexible nozzles to be tilted, thus allowing for the adjustment of multiple spray angles by the swivel hose reel.However, the swivel nozzles currently available and in use on the market typically employ vertically slid or parallel inclined surface blocks to drive the sliding plates, thus inevitably achieving the return of the flexible nozzle and the control of the spray angle. This drive design is not only complex in design and requires more installation space, but is also cumbersome to operate. In particular, when tilting the flexible nozzle, it often lacks sufficient clamping force, which can easily lead to the flexible nozzle rebounding and consequently cause a malfunction in the swivel nozzle's spray angle adjustment. CONTENTS OF THE PRESENT USE SAMPLE

[0003] The present utility model aims to provide, by overcoming the shortcomings of the existing technology, a swiveling tube with an adjustable nozzle angle that is simple and compact in design, easy to operate, ensures reliable tilt locking and rebound prevention of the flexible nozzle, and thus guarantees reliable adjustment of the spray angle.

[0004] The technical problem of the present utility model is solved by the following technical solution: Swivel tube with adjustable nozzle angle, comprising a base and a water supply tube pivotably mounted on the base, wherein a water supply chamber is arranged in the water supply tube, a nozzle cover is provided on the water supply tube, several flexible nozzles are arranged between the water supply tube and the nozzle cover, and several sliding plates are arranged on the several flexible nozzles; wherein the lower ends of the several flexible nozzles are simultaneously in close contact with the water supply chamber, and the upper ends of the several flexible nozzles are passed through the sliding plates and protrude from the nozzle cover.A drive mechanism and a drive block are provided at an end section of the water supply pipe, wherein one end of the sliding plate is movably attached to the drive block, the drive mechanism drives the drive block to axial reciprocating motion and simultaneously drives one end of the sliding plate to perform a lifting and lowering reciprocating motion on the drive block, thereby tilting several flexible nozzles synchronously into several spray angles.

[0005] A vertically extending sliding groove is arranged on the drive block and a sliding block is provided at one end of the sliding plate, wherein one end of the sliding plate is movably arranged in the sliding groove of the drive block via the sliding block, wherein the reciprocating sliding movement of the sliding block along the sliding groove of one end of the sliding plates on the drive block results in a lifting and lowering reciprocating movement.

[0006] The sliding block consists of a one-piece molded outer anti-slip block, a middle sliding rod and an inner anti-slip block, wherein the middle sliding rod is limited by the outer anti-slip block and the inner anti-slip block within the sliding groove of the drive block and thereby performs a reciprocating sliding movement along the sliding groove.

[0007] The drive mechanism comprises a rotating ring and a worm gear, the rotating ring being arranged to rotate on the end section of the water supply pipe, one end of the worm gear engaging with the rotating ring and the other end of the worm gear being screwed to the drive block; the rotating ring is driven by forward and reverse rotation via the gear engagement, causing the worm gear to perform a synchronous forward and reverse rotation, which in turn drives the drive block to axial reciprocating motion.

[0008] Between the rotating ring and one end of the worm, an internal toothing and an external toothed shaft are arranged, forming a gear mesh; between the other end of the worm and the drive block, a threaded shaft and a threaded hole are arranged, forming a screw connection.

[0009] On the outside of the rotating ring, non-slip teeth are arranged around the perimeter, to which a drive pin is attached.

[0010] The multiple flexible nozzles are distributed axially in a linear arrangement and accordingly several axially arranged sliding holes are provided on a sliding plate, as well as several axially arranged ejection holes are provided on a nozzle cover, wherein the upper end of each flexible nozzle is passed through the corresponding sliding hole and then protrudes outwards through the corresponding ejection hole.

[0011] The multiple flexible nozzles are equipped with nozzle bases, and these nozzle bases are used to attach the lower ends of the multiple flexible nozzles to the water supply pipe.

[0012] The water supply pipe has at its end a water supply nozzle connected to the water supply chamber and a valve for opening and closing the water supply nozzle.

[0013] The outer surface of the nozzle cover is provided with a spray angle marking of the adjacent rotating ring.

[0014] Compared to existing technology, the main innovation of the present utility model solution is that a drive mechanism and a drive block are provided at one end section of the water supply pipe. One end of the sliding plate is movably attached to the drive block. The drive mechanism drives the drive block into an axial reciprocating motion and simultaneously drives one end of the sliding plate to perform a lifting and lowering reciprocating motion on the drive block, thereby synchronously tilting several flexible nozzles into multiple spray angles. This type of drive, in which the drive mechanism interacts with the drive block, obviously offers practical advantages such as a simple and compact design as well as effortless and ergonomic operation.

[0015] In particular, the drive mechanism relies primarily on a screw connection to enable the axial reciprocating movement of the drive block. Thanks to the strong meshing capability of the screw threads, the tilt locking of the flexible nozzle and the rebound prevention can be effectively implemented, thus ensuring the reliability of the spray angle adjustment. BRIEF DESCRIPTION OF THE DRAWING Fig. Figure 1 is a three-dimensional exploded view of this utility model. Fig. 2 is a 3D exploded view of Fig. 1 after removal of base and water supply nozzle. Fig. Figure 3 is a schematic cross-sectional structure of the utility model when the spray angle is minimal. Fig. 4 is the top view of Fig. 3. Fig. Figure 5 is a schematic cross-sectional structure of the utility model when the spray angle is at its maximum. Fig. 6 is the top view of Fig. 5. Fig. Figure 7 is a schematic diagram of the structure of the water supply pipe. Fig. Figure 8 is a schematic diagram of the structure with the nozzle cover removed. Fig. 7. Fig. 9 is a 3D exploded view of Fig. 8 after removal of the water supply pipe. Fig. Figure 10 shows the sectional view of the assembly structure of the drive mechanism, the drive block and the sliding plates. Fig. 11 is the perspective view of Fig. 10. Fig. Figure 12 is a schematic diagram of the structure of the drive mechanism. Fig. Figure 13 is a schematic diagram of the structure of the drive unit. Fig. Figure 14 is a schematic diagram of the structure of a pair of sliding plates. DETAILED DESCRIPTION

[0016] The exemplary embodiment of the utility model is explained in detail below, based on the figures mentioned above.

[0017] As in the Fig. Items 1 to 14 are shown: 1. Base, 2. Water supply pipe, 21. Water supply nozzle, 22. Valve, 23. Water supply chamber, 3. Nozzle cover, 31. Spray hole, 32. Spray angle marker, 4. Drive mechanism, 41. Rotating ring, 411. Anti-slip teeth, 412. Drive pin, 413. Internal gearing, 42. Worm, 421. External toothed shaft, 422. Threaded shaft, 5. Drive block, 51. Threaded hole, 52. Sliding groove, 6. Flexible nozzle, 7. Sliding plates, 71. Sliding hole, 72. Sliding block, 721. Outer anti-slip block, 722. Middle sliding rod, 723. Inner anti-slip block, 8. Nozzle base.

[0018] A nozzle angle adjustable swivel tube, as in the Fig.Figures 1 to 5 show a garden irrigation product whose structure includes a base 1. This base 1 is designed to be placed on the ground to serve as a base component for the swivel pipe, while simultaneously supporting the water supply pipe 2 so that it performs an oscillating back-and-forth movement around the axis line in the base 1.

[0019] The water supply pipe 2 is covered with an arc-shaped nozzle cover 3 to form a cylindrical pipe shape. A cavity is provided within the water supply pipe 2, particularly in its lower part, to form a water supply chamber 23. Between the upper part of the water supply pipe 2 and the nozzle cover 3, several flexible nozzles 6 are provided, along with a nozzle base 8 and sliding plates 7 arranged thereon; that is, the nozzle cover 3 encloses the flexible nozzles 6, the nozzle base 8, and the sliding plates 7.

[0020] The multiple flexible nozzles 6 are evenly distributed axially in a linear arrangement, and their lower ends are integrally formed with a flexible base plate made of the same material. The flexible base plate is then pressed and fixed to the water supply pipe 2 by the nozzle base 8; that is, the lower ends of multiple flexible nozzles 6 can be attached to the water supply pipe 2 via the nozzle base 8, thereby simultaneously establishing a tight connection between the lower ends of multiple flexible nozzles 6 and the water supply chamber 23.

[0021] The upper ends of the multiple flexible nozzles 6 are guided through a sliding plate 7 and protrude outwards through a nozzle cover 3. The precise structure is as follows: The sliding plate 7 has several axially arranged sliding holes 71, and the nozzle cover 3 has several axially arranged dispensing holes 31. Therefore, the upper end of each flexible nozzle 6 is guided through the corresponding sliding hole 71 and protrudes outwards through the corresponding dispensing hole 31.

[0022] In this embodiment, the sliding plates 7 are configured as two plates arranged on the left and right. Accordingly, the multiple flexible nozzles 6 are also divided into two groups arranged on the left and right and are driven by this pair of sliding plates 7 to enable independent movement of the two groups of flexible nozzles 6. This allows for relative tilting, mutual tilting, or tilting in the same direction of the two groups of flexible nozzles 6. This enables both the setting of multiple spray angles and an increase in the spray area.

[0023] The water supply pipe 2 has at one of its ends a water supply nozzle 21 connected to the water supply chamber 23 and a valve 22 for opening and closing the water supply nozzle in order to allow the connection of an external water supply line and the water supply to the water supply chamber 23.

[0024] Simultaneously, a drive mechanism 4 and a drive block 5 are arranged at the end of the water supply pipe 2. In this embodiment, due to the design of a pair of laterally arranged sliding plates 7, to ensure that each sliding plate can be actuated independently via the drive mechanism 4 and the drive block 5, the drive mechanism 4 and the drive block 5 are required at both ends of the water supply pipe 2. Since the structural design is completely identical at both ends, only the drive mechanism 4 and the drive block 5 at any one end of the water supply pipe will be described in detail.

[0025] The drive mechanism 4 comprises a rotating ring 41 and a worm gear 42. The rotating ring is arranged to rotate on the end section of the water supply pipe 2. Anti-slip teeth 411 are arranged circumferentially on the outside of the rotating ring 41, to which a drive pin 412 is attached to facilitate switching the rotating ring. An internal toothing 413 and an external toothed shaft 421 are provided between the rotating ring 41 and one end of the worm gear to form a gear mesh. The other end of the worm gear forms a screw connection via a threaded shaft 422 with a threaded hole 51 in the drive block 5. Thus, after forward and reverse rotation, the rotating ring 41 drives the worm gear 42 to synchronous forward and reverse rotation via the gear mesh. This, in turn, drives the drive block 5 to axial reciprocating motion., the drive block 5 is driven along the X-axis to a horizontal back-and-forth movement.

[0026] The sliding plate 7 is movably attached at one end to the drive block 5, and its specific structure is as follows: the drive block 5 is equipped with a vertically extending sliding groove 52, while a sliding block 72 is attached to the end of the sliding plate 7. This sliding block consists of a one-piece molded outer anti-slip block 721, a middle sliding rod 722, and an inner anti-slip block 723. The middle sliding rod 722 can be confined within the sliding groove 52 of the drive block 5 by the outer anti-slip block 721 and the inner anti-slip block 723, and can perform a reciprocating sliding movement along the sliding groove 52. In this way, one end of the sliding plate 7 is movably mounted in a sliding groove 52 of the drive block 5 via a sliding block 72.When the sliding block 72 performs a reciprocating sliding movement along the sliding groove 52, a lifting and lowering reciprocating movement of the end of the sliding plate 7 on the drive block 5 is created, that is, the end of the sliding plate 7 performs a vertical lifting and lowering reciprocating movement on the drive block 5 along the Z-axis, thereby tilting several flexible nozzles 6 synchronously into several spray angles.

[0027] This type of drive, in which the drive mechanism 4 interacts with the drive block 5, obviously offers practical advantages such as a simple and compact design as well as effortless and ergonomic operation. This is particularly true since the drive mechanism 4 primarily enables the axial reciprocating movement of the drive block 5 via a screw connection. Thanks to the strong meshing capability of the screw threads, the tilt locking of the flexible nozzle and the rebound prevention can be effectively implemented, thereby ensuring the reliability of the spray angle adjustment.

[0028] Furthermore, the outer surface of the nozzle cover 3 is provided with a spray angle marking 32 of the adjacent rotating ring 41. This design mainly features two spray angle markings 32, each representing the minimum and maximum spray angles, to enable users to accurately identify and quickly apply them.

[0029] The above are only specific examples of the utility model; those skilled in the field should understand that any structural design equivalent to this example should fall within the scope of protection of the utility model.

Claims

[1] Swivel tube with adjustable nozzle angle, comprising a base (1) and a water supply tube (2) pivotably mounted on the base, wherein a water supply chamber (23) is arranged in the water supply tube, a nozzle cover (3) is provided on the water supply tube, several flexible nozzles (6) are arranged between the water supply tube (2) and the nozzle cover (3), and several sliding plates (7) are arranged on the several flexible nozzles; wherein the lower ends of the several flexible nozzles (6) are simultaneously in tight contact with the water supply chamber (23), and the upper ends of the several flexible nozzles (6) are passed through the sliding plates (7) and protrude from the nozzle cover (3), characterized by, that a drive mechanism (4) and a drive block (5) are provided at an end section of the water supply pipe (2), wherein one end of the sliding plates (7) is movably attached to the drive block (5), the drive mechanism (4) drives the drive block (5) to axial reciprocating motion and simultaneously drives one end of the sliding plates (7) to perform a raising and lowering reciprocating motion on the drive block (5), thereby tilting several flexible nozzles (6) synchronously into several spray angles. [2] Swivel tube with adjustable nozzle angle according to claim 1, characterized by, that a vertically extending sliding groove (52) is arranged on the drive block (5) and a sliding block (72) is provided accordingly at one end of the sliding plate (7), wherein one end of the sliding plate (7) is movably arranged in the sliding groove (52) of the drive block (5) via the sliding block (72), wherein the reciprocating sliding movement of the sliding block (72) along the sliding groove (52) of one end of the sliding plates (7) on the drive block (5) results in a lifting and lowering reciprocating movement. [3] Swivel tube with adjustable nozzle angle according to claim 2, characterized by, that the sliding block (72) consists of a one-piece formed outer anti-slip block (721), a middle sliding rod (722) and an inner anti-slip block (723), wherein the middle sliding rod (722) is limited by the outer anti-slip block (721) and the inner anti-slip block (723) within the sliding groove (52) of the drive block (5) and thereby performs a reciprocating sliding movement along the sliding groove. [4] Swivel tube with adjustable nozzle angle according to claim 1, characterized by, that the drive mechanism (4) comprises a rotating ring (41) and a worm gear (42), wherein the rotating ring (41) is arranged to rotate on the end section of the water supply pipe (2), one end of the worm gear being in gear engagement with the rotating ring (41) and the other end of the worm gear being screwed to the drive block (5); the rotating ring gear (41) drives the worm gear (42) to synchronous forward and reverse rotation via the gear engagement, which in turn drives the drive block (5) to axial reciprocating motion. [5] Swivel tube with adjustable nozzle angle according to claim 4, characterized by, that between the rotating ring (41) and one end of the worm, an internal toothing (413) and an external toothed shaft (421) are arranged, forming a gear engagement; between the other end of the worm and the drive block (5), a threaded shaft (422) and a threaded hole (51) are arranged, forming a screw connection. [6] Swivel tube with adjustable nozzle angle according to claim 4, characterized by , that non-slip teeth (411) are arranged around the outside of the rotating ring (41), to which a drive pin (412) is attached. [7] Swivel tube with adjustable nozzle angle according to claim 1, characterized by, that the several flexible nozzles (6) are distributed axially in a linear arrangement, accordingly several axially arranged sliding holes (71) are provided on a sliding plate (7), and several axially arranged ejection holes (31) are provided on a nozzle cover (3), wherein the upper end of each flexible nozzle (6) is passed through the corresponding sliding hole (71) and then protrudes outwards through the corresponding ejection hole (31). [8] Swivel tube with adjustable nozzle angle according to claim 1 characterized by , that the multiple flexible nozzles (6) are provided with nozzle bases (8) and that the lower ends of the multiple flexible nozzles (6) are attached to the water supply pipe (2) by means of these nozzle bases. [9] Swivel tube with adjustable nozzle angle according to claim 1, characterized by, that the water supply pipe (2) has at its end a water supply nozzle (21) connected to the water supply chamber (23) and a valve (22) for opening and closing the water supply nozzle. [10] Swivel tube with adjustable nozzle angle according to claim 4, characterized by , that the outer surface of the nozzle cover (3) is provided with a spray angle marking (32) of the adjacent rotating ring (41).

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