A high pressure spray head

Abstract

The utility model discloses a high pressure shower nozzle relates to the technical field of shower nozzle. Including shower nozzle subassembly, shower nozzle subassembly includes connecting seat, aluminium shell, damping shaft and shower nozzle body, connecting seat sets up at the top of aluminium shell, and the inside of aluminium shell is provided with damping shaft, and the bottom end of damping shaft extends to the outside of aluminium shell and is provided with shower nozzle body, and the inside of connecting seat is provided with sealing seat, and the top end of damping shaft extends to the inside of connecting seat and is provided with sealing shaft. Through dynamic sealing and multistage O type ring, sealing washer and the static sealing combination of oil seal, realize the zero leakage under axial, radial and dynamic movement, and the dustproof and waterproof of sealing system can be stably operated under high temperature, high humidity, high pressure working condition, and the setting of copper ring, bearing no.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spray head, concretely is a high pressure spray head. BACKGROUND

[0002] The meaning of spray head and nozzle is very close, one is commonly used and the other is more professional. Spray head is a very important component in many kinds of spraying, spraying, oil spraying and sand blasting equipment, and even is the main component.

[0003] The existing spray head sealing system is difficult to consider dynamic / static sealing, and axial or radial leakage is prone to occur, especially in high temperature, high humidity and high pressure environment, the failure risk is high, and the equipment cannot run stably for a long time in harsh working conditions, the service life is short, the application scene is limited, and the use effect is not ideal. UTILITY MODEL CONTENT

[0004] The utility model provides a high pressure spray head to solve the problem in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high pressure spray head, comprising a spray head assembly, the spray head assembly comprises a connecting seat, an aluminum shell, a damping shaft and a spray head body, the connecting seat is arranged at the top of the aluminum shell, the damping shaft is arranged in the inside of the aluminum shell, the bottom end of the damping shaft extends to the outside of the aluminum shell and is provided with the spray head body, the inside of the connecting seat is provided with a sealing seat, the top end of the damping shaft extends to the inside of the connecting seat and is sleeved with a sealing shaft, and the top end of the sealing shaft extends to the inside of the sealing seat.

[0006] Further, the inside of the connecting seat is provided with a sealing gasket located at the bottom of the sealing seat, the top of the sealing gasket extends to the inside of the bottom of the sealing seat, and a first O-shaped ring is sleeved around the top of the sealing gasket.

[0007] Further, the inside of the connecting seat is provided with a sealing gasket located at the bottom of the sealing seat, the top of the sealing gasket extends to the inside of the bottom of the sealing seat, and a first O-shaped ring is sleeved around the top of the sealing gasket.

[0008] Further, the bottom of the connecting seat extends to the inside of the aluminum shell, and an oil seal one and a bearing one are sleeved between the top end outside of the damping shaft and the inside of the connecting seat.

[0009] Further, the bottom of the spray head body is embedded with a plurality of nozzles, the spray head body is connected with a protective cover through an internal hexagonal cup head screw, and the inside of the protective cover is provided with through holes consistent with and corresponding to the number of nozzles.

[0010] Further, the bottom of the spray head body is provided with inclined mounting surfaces consistent with and corresponding to the number of nozzles, and one end of the nozzle is vertically embedded in the inside of the inclined mounting surface.

[0011] Further, the inside of the sealing seat is provided with a dynamic seal and a guide ring matched with the outside of the sealing shaft, the bottom of the dynamic seal extends to the inside of the guide ring, and the outside of the dynamic seal is matched with an O-shaped ring five.

[0012] Further, the outside of the sealing shaft is further matched with a sealing washer and an O-shaped ring six in the inside of the top end of the damping shaft.

[0013] Further, the inside of the aluminum shell is provided with a copper ring matched with the outside of the damping shaft and an oil seal two.

[0014] Further, the outside of the damping shaft is further matched with a gasket ring and a bearing two at the top and bottom of the gasket ring.

[0015] Compared with the prior art, the high-pressure nozzle has the following beneficial effects:

[0016] The high-pressure nozzle realizes zero leakage under axial, radial and dynamic movement through the combination of the dynamic seal and the static seal of the multi-stage O-shaped ring, the sealing washer and the oil seal, the sealing system is dustproof and waterproof, can stably operate under high-temperature, high-humidity and high-pressure working conditions, the setting of the copper ring, the bearing one and the bearing two reduces the wear of key components, prolongs the maintenance period, the inclined installation surface and the nozzle optimize the fluid distribution, the nozzle is convenient to replace, reduces the overall use cost, meets economic benefits, and has wide application prospect. BRIEF DESCRIPTION OF DRAWINGS

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

[0018] Figure 2 It is a protective cover structure schematic view of the utility model;

[0019] Figure 3 It is a nozzle body structure explosion drawing of the utility model;

[0020] Figure 4 It is a nozzle structure schematic view of the utility model;

[0021] Figure 5 It is an aluminum shell internal structure explosion drawing of the utility model;

[0022] Figure 6 It is a nozzle assembly structure sectional view of the utility model;

[0023] Figure 7 It is a connecting seat structure sectional view of the utility model;

[0024] Figure 8 It is a copper ring structure sectional view of the utility model.

[0025] In the diagram: 1. Nozzle assembly; 11. Connecting seat; 111. Sealing gasket; 112. O-ring one; 113. O-ring two; 114. O-ring three; 115. O-ring four; 12. Aluminum housing; 13. Damping shaft; 131. Oil seal one; 132. Bearing one; 133. Washer ring; 14. Nozzle body; 141. Nozzle; 142. Angled mounting surface; 143. Protective cover; 15. Sealing seat; 151. Dynamic seal; 152. O-ring five; 153. Guide ring; 16. Sealing shaft; 161. Sealing gasket; 162. O-ring six; 17. Copper ring; 18. Bearing two; 19. Oil seal two. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-8 This utility model discloses a high-pressure nozzle, including a nozzle assembly 1. The nozzle assembly 1 includes a connecting seat 11, an aluminum housing 12, a damping shaft 13, and a nozzle body 14. The connecting seat 11 is disposed on the top of the aluminum housing 12, and the damping shaft 13 is disposed inside the aluminum housing 12. The bottom end of the damping shaft 13 extends to the outside of the aluminum housing 12 and is fitted with the nozzle body 14. A sealing seat 15 is disposed inside the connecting seat 11, and the top end of the damping shaft 13 extends to the inside of the connecting seat 11 and is fitted with a sealing shaft 16. The top end of the sealing shaft 16 extends to the inside of the sealing seat 15. In use, high-pressure fluid enters the nozzle assembly 1 through the connecting seat 11 and passes through the sealing seat 15 in sequence. The internal channels of the sealing shaft 16 and the damping shaft 13 ultimately eject the material from the nozzle 141 at the bottom of the nozzle body 14. The sealing shaft 16, the connecting seat 11, the aluminum housing 12, the nozzle body 14, and the nozzle 141 are all equipped with wrench positions for easy disassembly and assembly using wrench tools. The wrench positions are used to provide controllable rotational torque to meet the requirements of threadless precision mechanical connections. The connection between the connecting seat 11 and the aluminum housing 12, between the sealing shaft 16 and the damping shaft 13, and between the nozzle body 14 and the damping shaft 13 all adopt an overfit connection method. An overfit means that the tolerance zone of the shaft and the hole partially overlaps, which may produce a small gap or interference. While the connection is tight, the wrench positions allow for manual disassembly using wrench tools.

[0028] Specifically, the connecting seat 11 is provided with a sealing gasket 111 located at the bottom of the sealing seat 15. The top of the sealing gasket 111 extends into the bottom of the sealing seat 15, and an O-ring 112 is provided around the top of the sealing gasket 111.

[0029] In this embodiment, the design of the sealing gasket 111 ensures the sealing performance between the sealing seat 15 and the connecting seat 11, and the setting of the O-ring 112 further ensures the sealing performance between the sealing gasket 111 and the sealing seat 15.

[0030] Specifically, the connecting seat 11 has an O-ring 113 nested inside the sealing seat 15, and an O-ring 114 and an O-ring 115 located inside the aluminum shell 12 are fitted on the outside of the connecting seat 11.

[0031] In this embodiment, the O-ring 2 113 ensures the sealing of the top ring of the sealing seat 15. The outside of the connecting seat 11 is also provided with a through hole opposite to the O-ring 2 113. The outside of the connecting seat 11 is also provided with several oblique holes that communicate with the inside of the connecting seat 11. The O-ring 4 115 seals the oblique holes.

[0032] Specifically, the bottom of the connecting seat 11 extends into the interior of the aluminum housing 12, and an oil seal 131 and a bearing 132 are fitted between the outer top of the damping shaft 13 and the interior of the connecting seat 11.

[0033] In this embodiment, oil seal 131 is located above bearing 132. The setting of oil seal 131 waterproofs bearing 132 and does not affect the relative rotation of connecting seat 11 and damping shaft 13. The setting of bearing 132 ensures the coaxial stability of connecting seat 11 and damping shaft 13, making the rotation more stable.

[0034] Specifically, the bottom of the nozzle body 14 is provided with a plurality of nozzles 141, and the nozzle body 14 is connected to a cover 143 by an internal hexagonal socket head cap screw. The cover 143 has through holes inside that are the same number as the number of nozzles 141 and correspond one-to-one.

[0035] In this embodiment, the inclined nozzle 141 causes the water to spray out at an angle, which, together with the rotation of the damping shaft 13, further ensures the cleaning effect. The cover 143 is used to limit the end of the nozzle 141 away from the inclined mounting surface 142.

[0036] Specifically, the bottom of the nozzle body 14 is provided with an inclined mounting surface 142 that is the same number as the number of nozzles 141 and corresponds one-to-one, and one end of the nozzle 141 is vertically embedded into the interior of the inclined mounting surface 142.

[0037] In this embodiment, the nozzle body 14 is provided with an inclined cavity for connecting the nozzle 141 and the damping shaft 13. The inclined surface design of the inclined mounting surface 142 makes the rotation of the nozzle body 14 more efficient, while reducing the direct impact of the fluid on the bottom of the nozzle body 14 and reducing the risk of material fatigue.

[0038] Specifically, the sealing seat 15 is provided with a dynamic seal 151 and a guide ring 153 that are sleeved with the outside of the sealing shaft 16. The bottom of the dynamic seal 151 extends into the inside of the guide ring 153, and an O-ring 152 is sleeved on the outside of the dynamic seal 151.

[0039] In this embodiment, the combination of dynamic seal 151 and guide ring 153 achieves dynamic sealing when the damping shaft 13 rotates. O-ring 152 provides auxiliary radial pressure compensation to prevent high-pressure fluid from leaking along the gap between the sealing shaft 16 and the sealing seat 15, thus extending the service life of dynamic seal 151.

[0040] Specifically, the sealing shaft 16 is also fitted with a sealing gasket 161 and an O-ring 162 located inside the top of the damping shaft 13.

[0041] In this embodiment, the sealing gasket 161 and the O-ring 162 form an axial sealing barrier, preventing fluid from seeping back into the interior of the aluminum housing 12 through the gap between the top of the damping shaft 13 and the sealing shaft 16.

[0042] Specifically, the aluminum housing 12 is provided with a copper ring 17 that is sleeved with the outside of the damping shaft 13 and an oil seal 19.

[0043] In this embodiment, the copper ring 17 is fixedly installed inside the aluminum shell 12, and the oil seal 19 is embedded in the bottom of the inner wall of the aluminum shell 12 to seal the connection between the bottom of the aluminum shell 12 and the damping shaft 13. The copper ring 17 and the damping shaft 13 control the speed through magnetic field braking force. Several north and south pole magnets are embedded around the damping shaft 13. During the rotation of the damping shaft 13, the magnets follow the rotation of the damping shaft 13, while the copper ring 17 is fixed to the inner wall of the aluminum shell 12 to generate magnetic field braking force, thereby controlling the rotation speed and achieving higher cleaning efficiency.

[0044] Specifically, the damping shaft 13 is also fitted with a washer 133 and bearings 18 located at the top and bottom of the washer 133.

[0045] In this embodiment, the washer 133 and the two bearings 18 distributed vertically share the axial load of the damping shaft 13, reducing the risk of deformation caused by concentrated bearing force and improving the structural stability of the nozzle body 14 under high pressure and high frequency vibration.

[0046] During product assembly, O-ring 152 is fitted onto the dynamic seal 151, and O-ring 112 is fitted onto the gasket 111. The dynamic seal 151, guide ring 153, and gasket 111 are then sequentially installed into the sealing seat 15. The sealing seat 15 is then installed into the connecting seat 11, and O-ring 113 is placed inside. Oil seal 131 is then installed into the connecting seat 11. O-rings 114 and 115 are then fitted onto the outside of the connecting seat 11. Finally, gasket 161 and O-ring 162 are fitted onto the sealing shaft 16. Externally, screw the sealing shaft 16 into the inside of the damping shaft 13 and tighten it. Install the bearing 132 at the upper end of the damping shaft 13, and install the bearing 18 and washer 133 at the lower end of the damping shaft 13. Then install the oil seal 19 and copper ring 17 into the aluminum housing 12. Then install the installed damping shaft 13 into the aluminum housing 12. Screw the installed connecting seat 11 onto the aluminum housing 12 and tighten it. Screw the nozzle body 14 onto the installed damping shaft 13 and install four nozzles 141 at the bottom of the nozzle body 14. It can then be connected to the water flow for use.

[0047] During disassembly, use a hook to remove O-ring 113 from the connector 11, pour out the sealing seat 15, and then remove the sealing gasket 111, guide ring 153, and dynamic seal 151 in sequence. Unscrew the nozzle body 14, remove the screws to remove the cover 143, and then remove the four nozzles 141. Use a wrench to unscrew the connector 11 and the aluminum housing 12, and use a hook to remove O-ring 114 and O-ring 115 from the connector 11. Remove the oil seal 19 and copper ring 17 from inside the housing, and then remove the bearing 18 and washer 133 from the upper and lower ends of the damping shaft 13 in sequence. First, use a wrench to unscrew the sealing shaft 16, and use a hook to remove the sealing gasket 161 and O-ring 162 on the sealing shaft 16. The disassembly is now complete.

[0048] In summary, this high-pressure nozzle achieves zero leakage under axial, radial, and dynamic motion through the static sealing combination of dynamic seal 151, multi-stage O-rings, gaskets 111, and oil seals. The sealing system is dustproof and waterproof, and can operate stably under high temperature, high humidity, and high pressure conditions. The copper ring 17, bearing 132, and bearing 18 reduce wear on key components and extend maintenance cycles. The inclined mounting surface 142 and nozzle 141 optimize fluid distribution, and the nozzle 141 is easy to replace, reducing overall operating costs and demonstrating economic efficiency and broad application prospects.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure nozzle, comprising a nozzle assembly (1), characterized in that: The nozzle assembly (1) includes a connecting seat (11), an aluminum housing (12), a damping shaft (13), and a nozzle body (14). The connecting seat (11) is located on the top of the aluminum housing (12). The damping shaft (13) is located inside the aluminum housing (12). The bottom end of the damping shaft (13) extends to the outside of the aluminum housing (12) and is fitted with the nozzle body (14). A sealing seat (15) is provided inside the connecting seat (11). The top end of the damping shaft (13) extends to the inside of the connecting seat (11) and is fitted with a sealing shaft (16). The top end of the sealing shaft (16) extends to the inside of the sealing seat (15).

2. A high-pressure nozzle according to claim 1, characterized in that: The connecting seat (11) is provided with a sealing gasket (111) located at the bottom of the sealing seat (15). The top of the sealing gasket (111) extends into the bottom of the sealing seat (15), and an O-ring (112) is provided around the top of the sealing gasket (111).

3. A high-pressure nozzle according to claim 1, characterized in that: The connecting seat (11) is internally nested with an O-ring two (113) located on top of the sealing seat (15), and the connecting seat (11) is externally fitted with an O-ring three (114) and an O-ring four (115) located inside the aluminum shell (12).

4. A high-pressure nozzle according to claim 1, characterized in that: The bottom of the connecting seat (11) extends into the interior of the aluminum housing (12), and an oil seal (131) and a bearing (132) are fitted between the outer top of the damping shaft (13) and the interior of the connecting seat (11).

5. A high-pressure nozzle according to claim 1, characterized in that: The nozzle body (14) has several nozzles (141) embedded at its bottom. The nozzle body (14) is connected to a cover (143) by an internal hexagonal socket head cap screw. The cover (143) has through holes inside that are the same number as the number of nozzles (141) and correspond one-to-one.

6. A high-pressure nozzle according to claim 1, characterized in that: The bottom of the nozzle body (14) is provided with an inclined mounting surface (142) that is the same number as the number of nozzles (141) and corresponds one-to-one. One end of the nozzle (141) is vertically embedded in the interior of the inclined mounting surface (142).

7. A high-pressure nozzle according to claim 1, characterized in that: The sealing seat (15) is provided with a dynamic seal (151) and a guide ring (153) that are fitted to the outside of the sealing shaft (16). The bottom of the dynamic seal (151) extends into the inside of the guide ring (153), and an O-ring (152) is fitted on the outside of the dynamic seal (151).

8. A high-pressure nozzle according to claim 1, characterized in that: The sealing shaft (16) is also fitted with a sealing washer (161) and an O-ring (162) located inside the top of the damping shaft (13).

9. A high-pressure nozzle according to claim 1, characterized in that: The aluminum housing (12) is provided with a copper ring (17) that is fitted to the outside of the damping shaft (13) and an oil seal (19).

10. A high-pressure nozzle according to claim 1, characterized in that: The damping shaft (13) is also fitted with a washer (133) and bearings (18) located at the top and bottom of the washer (133).

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