Damping type high-pressure nozzle

Abstract

An ejector pin and an ejector pin nut are arranged in a spray head seat, a center shaft is arranged on the right side of the ejector pin nut, and the interior of the left end of the center shaft is connected with the ejector pin in a sealed mode through a sealing assembly. A bearing and a magnetic damping ring are arranged between the periphery of the center shaft and the inner wall of the spray head seat, through the structural arrangement, damping speed limiting during rotation of the spray head seat can be achieved, rotation speed reduction of the spray head seat can be achieved on the premise that liquid pressure is not reduced when the liquid pressure is increased, and the situation that high-pressure water columns form water spraying lines, and consequently cleaning efficiency is reduced is prevented. A spray cover is connected to the right end of the periphery of the spray head seat, and a peripheral protection sleeve is arranged between the spray cover and the spray head seat and used for achieving peripheral protection when the spray head seat rotates at a high speed.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-pressure nozzles, and particularly relates to a damping type high-pressure nozzle. Background Art

[0002] As we all know, in the field of high-pressure cleaning technology, the more commonly used in the prior art is the high-pressure cleaning nozzle. This type of cleaning nozzle is connected to a high-pressure pipe, and a water outlet is arranged at the end. The water outlet is connected to a rotating inner core, and the nozzle is driven by high-pressure liquid to realize in-situ rotation, thereby realizing high-pressure flushing of the pipe or chamber.

[0003] Existing high-pressure cleaning nozzles have a minimum lower limit requirement for water pressure when working. That is to say, the operation of such devices must be driven by a certain water pressure to achieve rotation of the water outlet end, thereby achieving high-speed rotation of high-pressure liquid in a closed cleaning space.

[0004] The technical problem currently encountered is that, in order to improve the cleaning efficiency, technical personnel in this field usually adopt the method of increasing the water pressure, and use the high pressure to obtain a higher speed water column to spray the cleaned part. However, in actual operation, simply increasing the water pressure will cause the rotation speed of the water outlet to increase at the same time. The increase in rotation speed will cause the water column to be scattered. When the rotation speed reaches a certain level, this high-speed rotation will directly gather the high-pressure water column into a "water spray line", and this "water spray line" will reduce the cleaning effect.

[0005] To summarize, in the prior art, in order to achieve high-pressure cleaning, the best way is to increase the cleaning water pressure. However, when the cleaning water pressure of the existing high-pressure nozzle is increased, the rotation speed of the water outlet end will increase. This high-speed rotation will restrict the cleaning efficiency.

[0006] Therefore, the technical personnel in this field urgently need to solve the following technical problems, and design a damping high-pressure sprinkler head, which can increase the water pressure, but at the same time can control the rotation speed of the water outlet within a certain range. Utility Model Content

[0007] In view of the shortcomings of the prior art mentioned above, the utility model proposes a damping high-pressure nozzle, which adopts a damping structure to reduce the speed of the water outlet end when the high-pressure liquid drives the water outlet end to rotate, but this kind of rotation and speed reduction of the water outlet end does not affect the outward diversion of the high-pressure liquid.

[0008] The technical solution adopted by the utility model to solve its technical problems is:

[0009] A damped high-pressure nozzle comprises a nozzle seat, on which a spray hole is arranged; an ejector pin and an ejector pin nut are arranged inside the nozzle seat, a central shaft is arranged on the right side of the ejector pin nut, and the left end of the central shaft is sealed and connected to the ejector pin through a sealing component; a bearing and a damping ring are arranged between the periphery of the central shaft and the inner wall of the nozzle seat, the right end of the periphery of the nozzle seat is connected to a spray cover, and an outer protective sleeve is arranged between the spray cover and the nozzle seat.

[0010] The damping ring is a magnetic damping ring, which includes a magnetic ring and a copper ring, and the copper ring is wrapped around the outer periphery of the magnetic ring. The magnetic ring is a magnetizable device, and the damping effect can be changed by changing the magnetic content of the magnetic ring.

[0011] The sealing assembly comprises a sealing nut threadedly connected to the left end of the central shaft, and the sealing nut squeezes the water seal assembly and the water seal fixing ring between the ejector pin and the central shaft.

[0012] There are two bearings, which are arranged on the left and right sides of the damping ring; a blocking step is arranged on the periphery of the central axis, and the blocking step is arranged inside the damping ring to realize the blocking and limiting of the two bearings.

[0013] The utility model has the following beneficial effects: a ejector pin and an ejector pin nut are arranged inside the nozzle seat, a central shaft is arranged on the right side of the ejector pin nut, and the left end of the central shaft is sealed and connected to the ejector pin through a sealing component; a bearing and a magnetic damping ring are arranged between the periphery of the central shaft and the inner wall of the nozzle seat. Through this structural arrangement, damping speed limiting can be achieved during the rotation of the nozzle seat. When the liquid pressure is increased, the rotation speed of the nozzle seat can be reduced without reducing the liquid pressure, thereby preventing the high-pressure water column from forming a water spray line and reducing the cleaning efficiency.

[0014] The utility model also connects a spray cap to the right end of the outer periphery of the nozzle seat, and an outer protective sleeve is provided between the spray cap and the nozzle seat to realize outer periphery protection when the nozzle seat rotates at high speed. The utility model also designs the damping ring as a magnetic damping ring, wraps the copper ring around the outer periphery of the magnetic ring, and designs the magnetic ring as a magnetizable device, so that the damping speed reduction effect can be changed by changing the magnetic content of the magnetic ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the internal cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the nozzle seat assembly structure;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the magnetic damping ring;

[0019] In the figure, 1, nozzle seat, 2, ejector pin, 3, ejector pin nut, 4, left sealing strip fixing cavity, 5, outer protective sleeve, 6, spray cover, 7, sealing nut, 8, water seal assembly, 9, water seal fixing ring, 10, left end bearing, 11, magnetic damping ring, 12, right side bearing, 13, right sealing strip fixing cavity, 14, center axis, 15, injection hole, 16, magnetic ring, 17, copper ring, 18, blocking step. DETAILED DESCRIPTION

[0020] The utility model is further described below through implementation modes. The following description is only for exemplary explanation. Those skilled in the art can make further structural improvements based on the following explanation. The scope of protection of this patent shall be based on the scope recorded in the claims.

[0021] Embodiment 1:

[0022] A damping high-pressure nozzle comprises a nozzle seat 1, the left side of the nozzle seat 1 is semicircular, and a plurality of injection holes 15 are arranged on the arc surface, and the plurality of injection holes 15 are arranged at an angle, and the setting angle is the same as the setting angle of the injection holes 15 in the prior art, and the details are not repeated here; an axial chamber is arranged inside the nozzle seat 1, and an ejector pin 2 and an ejector pin nut 3 are arranged in the axial chamber, and the ejector pin nut 3 is screwed with the axial chamber to fix the ejector pin and the nozzle seat 1 as a whole.

[0023] A central shaft 14 is arranged on the right side of the ejector nut 3. The central shaft 14 is made of iron or copper. In this embodiment, brass is preferably used. The left end of the central shaft 14 is sealed and connected to the ejector 2 through a sealing assembly. In this embodiment, the sealing assembly includes a sealing nut 7 threadedly connected to the left end of the central shaft. The outer periphery of the sealing nut 7 is threadedly connected to the left end of the axial hole of the central shaft 14. The water seal assembly 8 and the water seal fixing ring 9 are squeezed between the ejector 2 and the central shaft 14. Furthermore, a left sealing strip fixing cavity 4 is arranged between the outer periphery of the left end of the central shaft 14 and the inner diameter of the right end of the nozzle seat 1. The inner cavity is filled with sealing material. Through this structural arrangement, the sealing between the outer periphery of the central shaft 14 and the nozzle seat 1 can be achieved.

[0024] A bearing and a damping ring are also provided between the periphery of the central shaft 14 and the inner wall of the nozzle seat 1. Figure 1 As shown, there are two bearings, namely a left-end bearing 10 and a right-end bearing 12, and the left-end bearing 10 and the right-end bearing 12 are respectively arranged on the left and right sides of the damping ring; a blocking step 18 is arranged on the periphery of the central axis 14, and the blocking step 18 is arranged inside the damping ring to achieve blocking and limiting of the left-end bearing 10 and the right-end bearing 12.

[0025] The outer right end of the nozzle seat 1 is threadedly connected to the spray cover 6, and an outer protective sleeve 5 is arranged between the spray cover 6 and the nozzle seat 1. A gap is arranged between the outer protective sleeve 5, the spray cover 6 and the nozzle seat 1. When the nozzle seat 1 rotates at high speed, the outer protective sleeve 5 is fixed.

[0026] After the above structure is set, when the utility model is in use, the right end of the central axis 14 is connected to the external water supply end, and the high-pressure liquid enters the interior of the nozzle seat 1 through the axis of the central axis 14, and is sprayed outward from multiple spray holes 15 with angle settings. During spraying, the nozzle seat 1 and the spray holes 15 rotate at high speed due to the high pressure. During high-speed rotation, the damping ring rotates at high speed and forms a structure that cuts the magnetic lines of force with the central axis 14. This structure conforms to Lenz's law and achieves the effect of damping and speed reduction.

[0027] Furthermore, in order to adjust the damping size, the utility model uses a magnetic damping ring 11 in this embodiment. Figure 3 As shown, the magnetic damping ring 11 includes a magnetic ring 16 and a copper ring 17, and the copper ring 17 is wrapped around the outer periphery of the magnetic ring 16. The magnetic ring 16 is a magnetizable device, and those skilled in the art can change the damping effect by changing the magnetic content of the magnetic ring.

[0028] The utility model can achieve damping speed limit when the nozzle seat 1 rotates through the above structural setting. When the liquid pressure is increased, the rotation speed of the nozzle seat 1 can be reduced without reducing the liquid pressure, thereby preventing the high-pressure water column from forming a water spray line and reducing the cleaning efficiency. The utility model also connects the spray cover 6 to the right end of the outer periphery of the nozzle seat 1, and an outer protective sleeve 5 is provided between the spray cover 6 and the nozzle seat 1 to achieve outer protection of the nozzle seat 1 when it rotates at high speed.

Claims

1. A damping high pressure nozzle, characterized in that: It includes a nozzle seat, which is provided with a spray hole; a ejector pin and an ejector pin nut are provided inside the nozzle seat, a central shaft is provided on the right side of the ejector pin nut, and the left end of the central shaft is sealed and connected to the ejector pin through a sealing component; a bearing and a damping ring are provided between the periphery of the central shaft and the inner wall of the nozzle seat, the right end of the periphery of the nozzle seat is connected to a spray cover, and an outer protective sleeve is provided between the spray cover and the nozzle seat; the damping ring adopts a magnetic damping ring, which includes a magnetic ring and a copper ring, and the copper ring is coated on the periphery of the magnetic ring; the magnetic ring is a magnetizable device; the sealing component includes a sealing nut threadedly connected to the left end of the central shaft, and the sealing nut squeezes the water seal component and the water seal fixing ring between the ejector pin and the central shaft.

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