Eccentric shaking type cleaning nozzle

Abstract

The utility model discloses an eccentric shaking type cleaning sprayer which comprises a shell, a spraying hole, a nozzle, a fixing ring, a water wheel, a fixing cover and the like, a nozzle ball head is arranged at the front end of the nozzle, a plurality of outer positioning ribs which are circumferentially and uniformly distributed are arranged on the outer circumferential surface of the nozzle, a nozzle hole is formed in the nozzle, and the front end of the nozzle penetrates through the nozzle ball head and is communicated with the spraying hole to form water outlet; therefore, when water flows into the shell to drive the water wheel to rotate and drive the rear end of the nozzle to form circumferential eccentric rotation, the nozzle ball head can be driven to form synchronous circumferential eccentric shaking relative to the spraying hole under the limitation of the outer positioning ribs, so that water discharged from the spraying hole also performs circumferential eccentric shaking spraying; obviously, the circumferential eccentric shaking structure is simpler to assemble, and the nozzle ball head can be effectively prevented from being accidentally clamped; meanwhile, the double-layer wear-resistant gaskets are arranged between the blades of the water wheel and the adjacent fixing rings, the water wheel can be prevented from being in a sticking state to affect rotation, and the structural improvement can improve the use reliability of the cleaning spray head and prolong the service life of the cleaning spray head.

Description

Technical Field

[0001] The utility model relates to a cleaning nozzle, in particular to an eccentric shaking type cleaning nozzle. Background Art

[0002] At present, cleaning nozzles are mainly used on water guns as terminal water outlet components. Their structure includes an outer shell and a spray hole at the front end of the outer shell. The outer shell is provided with a nozzle, a fixing ring, a water wheel and a fixing cover installed in sequence from back to front. A nozzle ball head is provided at the front end of the nozzle, and a nozzle hole passing through along the axis is provided in the nozzle. The front end of the nozzle hole passes through the nozzle ball head and is connected to the spray hole to form water outlet; in this way, when water enters the outer shell and drives the water wheel to rotate, it will drive the rear end of the nozzle to form a circular eccentric rotation, and then drive the nozzle ball head to form a synchronous circular eccentric rotation, and make the nozzle hole connected to the spray hole to form the water outlet also perform eccentric circumferential rotation and spray. During this action, the circular eccentric rotation formed by the nozzle ball head will constantly rub the front end of the shell, so it is often necessary to set a wear-resistant sealing ring in the spray hole at the front end of the shell, which not only complicates the installation structure, but also the wear-resistant sealing ring is easily displaced under the continuous friction of the nozzle ball head and accidentally stuck in the nozzle ball head, thereby affecting the normal use of the entire cleaning nozzle; at the same time, the water wheel is a rotating component in the shell, and a wear-resistant gasket is also required between its blades and the adjacent fixed ring to prevent wear, but the traditional wear-resistant gasket is only designed one. When the water wheel is impacted by axial high-pressure water, it will directly resist the single wear-resistant gasket and cannot convert the axial impact force into the rotational force of the water wheel. That is, the single wear-resistant gasket will directly form a sticky state with the water wheel and affect the rotation of the water wheel, which also affects the normal use of the cleaning nozzle. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide an eccentric shaking cleaning nozzle which can make the nozzle ball head form circumferential eccentric shaking and simplify the assembly structure therein, and avoid the water wheel from getting stuck in rotation.

[0004] The technical problem of the utility model is achieved through the following technical solutions:

[0005] An eccentrically oscillating cleaning nozzle comprises an outer shell and a spray hole at the front end of the outer shell; the outer shell is provided with a nozzle, a fixing ring, a water wheel and a fixing cover which are installed in sequence from back to front, the fixing ring and the fixing cover are fixed in the outer shell, the water wheel is rotatably installed in the outer shell, the front end of the nozzle is provided with a nozzle ball head, the outer circumferential surface of the nozzle ball head is provided with a plurality of external positioning ribs evenly distributed around the circumference, a nozzle hole which passes through along the axis line is provided in the nozzle, the front end of the nozzle hole passes through the nozzle ball head and is connected to the spray hole to form water outlet; the water entering the outer shell drives the water wheel to rotate, and drives the rear end of the nozzle to form a circular eccentric rotation, and then drives the nozzle ball head to form a synchronous circular eccentric oscillation relative to the spray hole under the restriction of the plurality of external positioning ribs, and causes the water outlet formed by the nozzle hole being connected to the spray hole to also be sprayed in a circular eccentric oscillation.

[0006] Each of the outer positioning ribs is a rectangular protrusion extending along the axial direction of the nozzle.

[0007] The spray hole is provided with a curling edge which is turned up from the hole edge of the spray hole to the rear circumference. The nozzle ball head forms eccentric oscillation in the circumference by sticking the spherical surface to the inner edge of the curling edge.

[0008] The nozzle ball head forms a circumferential eccentric swing relative to the spray hole, and drives a plurality of external positioning ribs to contact the curling edge to form a circumferential eccentric swing stroke of the nozzle ball head.

[0009] The outer circumferential surface of the water wheel is provided with a plurality of blades which are evenly distributed in a radial shape. A double-layer wear-resistant gasket is provided between the front end surfaces of the plurality of blades and the rear end surface of the fixing ring.

[0010] A water wheel ball head is provided at the front end of the water wheel, the axis of the water wheel ball head is eccentric to the rotation axis of the water wheel, and the water wheel ball head passes through the center hole of the fixed ring and is movably mounted in the rear end of the nozzle hole. The rotation of the water wheel drives the water wheel ball head to form a circular eccentric rotation in the rear end of the nozzle hole, thereby driving the rear end of the nozzle to form a synchronous circular eccentric rotation.

[0011] A pressure relief hole extending through the axis is provided in the fixed cover, and a water wheel hole extending through the axis is provided in the water wheel, the front end of which passes through the water wheel ball head. High-pressure water enters the outer shell, and the high-pressure water is discharged and pressure-released through the pressure relief hole, the water wheel hole, the nozzle hole and the spray hole which are connected in sequence.

[0012] The front end surface of the fixed cover is provided with a core shaft extending forward along the axis. The water wheel is rotatably sleeved on the core shaft through the rear end of the water wheel hole. The pressure relief hole is provided in the core shaft and passes through the axis.

[0013] The front end surface of the fixed cover is provided with a rear water cavity, and the fixed cover is provided with a plurality of inclined water inlet holes uniformly distributed circumferentially with the pressure relief hole as the center. The plurality of inclined water inlet holes are inclined in the same clockwise direction and connected to the rear water cavity, and the plurality of blades of the water wheel are arranged in the rear water cavity; the water in the outer shell enters the rear water cavity through the plurality of inclined water inlet holes, and impacts the plurality of blades to drive the water wheel to rotate.

[0014] A front water cavity is formed at the front of the fixing ring, and a plurality of water outlet inclined holes are provided on the fixing ring, which are evenly distributed circumferentially with the axis of the fixing ring as the center. The plurality of water outlet inclined holes are inclined in the same clockwise direction, and each water outlet inclined hole is respectively connected to the rear water cavity and the front water cavity; a plurality of water inlet side holes are respectively distributed circumferentially on the outer circumferential surface of the nozzle, and each water inlet side hole is respectively connected to the front water cavity and the nozzle hole.

[0015] Compared with the prior art, the present invention mainly provides a nozzle ball head at the front end of the nozzle, and a plurality of external positioning ribs uniformly distributed on the outer circumference of the nozzle ball head are provided. A nozzle hole penetrating along the axis is provided in the nozzle, and the front end of the nozzle hole penetrates the nozzle ball head and is connected to the spray hole to form water outlet; in this way, when water enters the shell and drives the water wheel to rotate, and drives the rear end of the nozzle to form a circular eccentric rotation, it can drive the nozzle ball head to form a synchronous circular eccentric shaking relative to the spray hole under the restriction of the plurality of external positioning ribs, so that the water outlet formed by the nozzle hole connecting the spray hole is also sprayed with a circular eccentric shaking; obviously, if this method is used, the water wheel will not be rotated. The external positioning ribs are evenly distributed around the circumference, and the nozzle ball head is eccentrically shaken to form water outlet, which not only omits the trouble of configuring a wear-resistant sealing ring at the nozzle ball head, thereby better simplifying the assembly structure at this point, but also prevents the nozzle ball head from being accidentally stuck by the wear-resistant sealing ring; at the same time, a double-layer wear-resistant gasket can be set between the blades of the water wheel and the adjacent fixed ring to prevent wear. Compared with the traditional single wear-resistant gasket, it will not directly stick to the water wheel and affect the rotation; therefore, the above-mentioned structural improvements can better improve the reliability of the cleaning nozzle and extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model (the nozzle ball head is not in a state of eccentric oscillation).

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention (the nozzle ball head is in a state of circumferential eccentric shaking).

[0018] Figure 3 for Figure 1 Appearance drawing.

[0019] Figure 4 for Figure 3 Right view of .

[0020] Figure 5 for Figure 3 3D exploded view of .

[0021] Figure 6 A cross-sectional view of the housing. DETAILED DESCRIPTION

[0022] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] like Figures 1 to 6 As shown, 1. outer shell, 11. spray hole, 12. rear water cavity, 13. front water cavity, 14. ring groove, 15. curling edge, 16. inner shoulder, 2. fixing cover, 21. pressure relief hole, 22. water inlet inclined hole, 23. core shaft, 24. convex rib, 3. nozzle, 31. nozzle ball head, 32. nozzle hole, 33. inner positioning rib, 34. water inlet side hole, 35. outer positioning rib, 4. fixing ring, 41. water outlet inclined hole, 42. middle hole, 5. water wheel, 51. water wheel ball head, 52. water wheel hole, 53. blade, 6. double-layer wear-resistant gasket.

[0024] An eccentric shaking cleaning nozzle, such as Figures 1 to 6 As shown, it is mainly used in water guns as the terminal water outlet component, and its structure includes a shell 1, a spray hole 11 at the front end of the shell, and a nozzle 3, a fixing ring 4, a water wheel 5 and a fixing cover 2 installed in the shell from back to front. According to the installation position of the above components, this embodiment is based on Figure 1 、 Figure 3 、 Figure 4 The right side of the view is shown as the front or front side of the cleaning nozzle, and the left side of the view is shown as the rear or rear side of the cleaning nozzle.

[0025] The fixed cover 2 is embedded in the annular groove 14 on the inner circumferential surface of the housing 1 through the ribs 24 on the outer circumferential surface to form a fixed installation; the front part of the fixed ring 4 is against the inner shoulder 16 of the housing 1, and the rear part of the fixed ring 4 is against the front part of the fixed cover 2, so that the fixed ring 4 is also installed and fixed in the housing 1.

[0026] The front end face of the fixed cover 2 is provided with a core shaft 23 extending forward along the axis and a rear water chamber 12 arranged outside the core shaft. A pressure relief hole 21 is provided inside the fixed cover 2 and passes through along the axis. Specifically, the pressure relief hole 21 is arranged in the core shaft 23 and passes through along the axis. The fixed cover 2 is also provided with a plurality of water inlet inclined holes 22 uniformly distributed around the circumference with the pressure relief hole 21 as the center. The plurality of water inlet inclined holes are inclined in the same clockwise direction and connected to the rear water chamber 12.

[0027] A water wheel ball head 51 is provided at the front end of the water wheel 5, and the axis of the water wheel ball head is eccentric to the rotation axis of the water wheel 5. A water wheel hole 52 is provided in the water wheel 5 along the axis, and the front end of the water wheel hole passes through the water wheel ball head 51; the water wheel 5 is rotatably installed in the outer shell 1, specifically, the water wheel 5 is rotatably sleeved on the core shaft 23 through the rear end of the water wheel hole 52 to form a rotation support, and a plurality of blades 53 are provided on the outer circumference of the water wheel 5, that is, the plurality of blades 53 of the water wheel 5 are just arranged in the rear water cavity 12; in this way, when the water in the outer shell 1 enters the rear water cavity 12 through the plurality of inclined water inlet holes 22, spiral water inlet can be formed through the plurality of inclined water inlet holes 22, thereby better impacting and driving the water wheel 5 to rotate.

[0028] A double-layer wear-resistant gasket 6 is provided between the multiple blades 53 and the rear end face of the fixed ring 4, which can be used to separate the direct contact between the water wheel 5 and the fixed ring 4 and help the water wheel 5 to rotate more quickly and flexibly; in particular, the design of the double-layer wear-resistant gasket 6 will not directly stick to the water wheel 5 and affect the rotation compared to the traditional single wear-resistant gasket, thereby ensuring the normal use of the cleaning nozzle.

[0029] A front water chamber 13 is formed at the front of the fixing ring 4. The fixing ring 4 is provided with a plurality of water outlet inclined holes 41 uniformly distributed around the circumference with the axis of the fixing ring as the center. The plurality of water outlet inclined holes are inclined in the same clockwise direction. Each water outlet inclined hole 41 is connected to the rear water chamber 12 and the front water chamber 13 respectively. Therefore, the incoming water after the impact water wheel 5 rotates can also form a spiral water outlet in the front water chamber 13 through the plurality of water outlet inclined holes 41, that is, a counterclockwise vortex water outlet can be formed. This vortex water outlet can further assist the circumferential eccentric rotation of the nozzle 3.

[0030] The front end of the nozzle 3 is provided with a nozzle ball head 31, and the outer circumferential surface of the nozzle ball head is provided with a number of circumferentially evenly distributed external positioning ribs 35, each of which is a rectangular protrusion extending along the axial direction of the nozzle 3; the nozzle 3 is provided with a nozzle hole 32 that passes through along the axial center line, and the front end of the nozzle hole passes through the nozzle ball head 31 and is connected to the spray hole 11 to form water outlet; the outer circumferential surface of the nozzle 3 is provided with a plurality of circumferentially evenly distributed water inlet side holes 34, each water inlet side hole is respectively connected to the front water chamber 13 and the nozzle hole 32, so the water inlet inclined hole 22, the rear water chamber 12, the water outlet inclined hole 41, the front water chamber 13, the water inlet side hole 34, the nozzle hole 32 and the spray hole 11 are connected in sequence, so that a complete water inlet and outlet path can be formed in the cleaning nozzle.

[0031] The water wheel ball head 51 passes through the center hole 42 at the axis of the fixing ring 4 and is movably mounted in the rear end of the nozzle hole 32. A plurality of internal positioning ribs 33 are also provided on the hole wall of the nozzle hole 32. Each internal positioning rib extends along the axial direction of the nozzle. When the water wheel ball head 51 is movably mounted in the rear end of the nozzle hole 32, it contacts the rear ends of the plurality of internal positioning ribs 33 to form a positioning.

[0032] In this way, when water enters the outer shell 1 through the water inlet inclined hole 22 and enters the rear water chamber 12 to drive the water wheel 5 to rotate, it will first drive the water wheel ball head 51 to form a circular eccentric rotation in the rear end of the nozzle hole 32, and then use this circumferential eccentric rotation to drive the nozzle ball head 31 to form a synchronous circumferential eccentric shaking relative to the spray hole 11 under the restriction of several external positioning ribs 35. Finally, the water formed by the nozzle hole 32 passing through the spray hole 11 will also be sprayed in a circular eccentric shaking manner.

[0033] The spray hole 11 is provided with a curled edge 15 that is turned up circumferentially from the edge of the spray hole to the rear. The nozzle ball head 31 forms a circumferential eccentric swing by the spherical surface abutting the inner edge of the curled edge 15. When the nozzle ball head 31 forms a circumferential eccentric swing relative to the spray hole 11, it will drive several external positioning ribs 35 to contact the curled edge 15, thereby forming a circumferential eccentric swing stroke of the nozzle ball head 31.

[0034] Obviously, this method of utilizing a plurality of circumferentially evenly distributed external positioning ribs 35 to swing the nozzle ball head 31 eccentrically to form water outlet not only omits the trouble of configuring a wear-resistant sealing ring at the nozzle ball head, thereby better simplifying the assembly structure there, but also prevents the nozzle ball head from being accidentally stuck by the wear-resistant sealing ring.

[0035] At the same time, when high-pressure water enters the outer shell 1, the high-pressure water can also form water outlet pressure relief through the pressure relief hole 21, the water wheel hole 52, the nozzle hole 32 and the spray hole 11 that are connected in sequence, making the entire pressure relief process more timely and smooth, thereby effectively avoiding the situation where the water wheel 5 is stuck, thereby greatly improving the reliability of the cleaning nozzle and extending its service life.

[0036] The above description is only a specific embodiment of the present invention. Those skilled in the art should understand that any structural design equivalent to this embodiment should be included in the protection scope of the present invention.

Claims

1. An eccentric shaking cleaning nozzle, comprising a housing (1) and a spray hole (11) at the front end of the housing; the housing (1) is provided with a nozzle (3), a fixing ring (4), a water wheel (5) and a fixing cover (2) which are installed in sequence from back to front, the fixing ring (4) and the fixing cover (2) are both fixed in the housing (1), the water wheel (5) is rotatably installed in the housing (1), and is characterized in that The front end of the nozzle (3) is provided with a nozzle ball head (31), and the outer circumferential surface of the nozzle ball head is provided with a plurality of circumferentially evenly distributed external positioning ribs (35), and the nozzle (3) is provided with a nozzle hole (32) penetrating along the axis, and the front end of the nozzle hole passes through the nozzle ball head (31) and is connected to the spray hole (11) to form water outlet; the water entering the shell (1) drives the water wheel (5) to rotate, and drives the rear end of the nozzle (3) to form a circular eccentric rotation, thereby driving the nozzle ball head (31) to form a synchronous circular eccentric shaking relative to the spray hole (11) under the restriction of the plurality of external positioning ribs (35), and makes the nozzle hole (32) connected to the spray hole (11) to form the water outlet to be sprayed in a circular eccentric shaking manner.

2. The eccentric shaking cleaning nozzle according to claim 1, characterized in that Each of the external positioning ribs (35) is a rectangular projection extending along the axial direction of the nozzle (3).

3. The eccentric shaking cleaning nozzle according to claim 1, characterized in that The spray hole (11) is provided with a curling edge (15) that is turned up from the edge of the spray hole to the rear circumference, and the nozzle ball head (31) forms a circumferential eccentric shaking by the spherical surface sticking to the inner edge of the curling edge (15).

4. The eccentric shaking cleaning nozzle according to claim 3, characterized in that The nozzle ball head (31) forms a circumferential eccentric swing relative to the spray hole (11), and drives a plurality of external positioning ribs (35) to contact the curling edge (15) to form a circumferential eccentric swing stroke of the nozzle ball head (31).

5. The eccentric shaking cleaning nozzle according to claim 1, characterized in that The outer circumferential surface of the water wheel (5) is provided with a plurality of blades (53) uniformly distributed in a radial pattern, and a double-layer wear-resistant gasket (6) is provided between the front end surfaces of the plurality of blades and the rear end surface of the fixing ring (4).

6. The eccentric shaking cleaning nozzle according to claim 1, characterized in that The front end of the water wheel (5) is provided with a water wheel ball head (51), the axis of which is eccentric to the rotation axis of the water wheel (5), and the water wheel ball head (51) passes through the middle hole (42) of the fixing ring (4) and is movably mounted in the rear end of the nozzle hole (32), and the rotation of the water wheel (5) drives the water wheel ball head (51) to form a circular eccentric rotation in the rear end of the nozzle hole (32), thereby driving the rear end of the nozzle (3) to form a synchronous circular eccentric rotation.

7. The eccentric shaking cleaning nozzle according to claim 6, characterized in that The fixed cover (2) is provided with a pressure relief hole (21) extending along the axis, and the water wheel (5) is provided with a water wheel hole (52) extending along the axis, the front end of the water wheel hole passing through the water wheel ball head (51); high-pressure water enters the housing (1), and the high-pressure water is discharged through the pressure relief hole (21), the water wheel hole (52), the nozzle hole (32) and the spray hole (11) which are connected in sequence to form water outlet pressure relief.

8. The eccentric shaking cleaning nozzle according to claim 7, characterized in that The front end surface of the fixed cover (2) is provided with a core shaft (23) extending forward along the axis, the water wheel (5) is rotatably sleeved on the core shaft (23) through the rear end of the water wheel hole (52), and the pressure relief hole (21) is provided in the core shaft (23) and passes through along the axis.

9. The eccentric shaking cleaning nozzle according to claim 7, characterized in that The front end surface of the fixed cover (2) is provided with a rear water cavity (12), and the fixed cover (2) is provided with a plurality of water inlet inclined holes (22) uniformly distributed around the circumference with the pressure relief hole (21) as the center. The plurality of water inlet inclined holes are inclined in the same clockwise direction and connected to the rear water cavity (12). The plurality of blades (53) of the water wheel (5) are arranged in the rear water cavity (12); the water in the housing (1) enters the rear water cavity (12) through the plurality of water inlet inclined holes (22) and impacts the plurality of blades (53) to drive the water wheel (5) to rotate.

10. The eccentric shaking cleaning nozzle according to claim 7, characterized in that A front water chamber (13) is formed at the front of the fixing ring (4), and a plurality of water outlet inclined holes (41) are provided on the fixing ring (4) and are evenly distributed around the axis of the fixing ring. The plurality of water outlet inclined holes are inclined in the same clockwise direction, and each water outlet inclined hole (41) is connected to the rear water chamber (12) and the front water chamber (13). The outer circumferential surface of the nozzle (3) is provided with a plurality of water inlet side holes (34) evenly distributed around the circumference, and each water inlet side hole is connected to the front water chamber (13) and the nozzle hole (32).

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