CN218394195U

CN218394195U - Rotary spray head for solid-containing liquid flow

Info

Publication number: CN218394195U
Application number: CN202222652420.0U
Authority: CN
Inventors: 韦天辉; 王会才
Original assignee: Shaoxing Zhongling Automobile Service Co ltd
Current assignee: Shaoxing Zhongling Automobile Service Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-31
Anticipated expiration: 2032-09-30

Abstract

The utility model provides a rotatory nozzle for containing solid liquid stream, including inner tube, outer tube, nozzle joint and rotary mechanism, the disc outside the inner tube has set gradually three archs from top to bottom, the protruding diameter of disc downside and middle department outside the inner tube is the same, the outer tube cover is located the inner tube outside, the outer tube with the coincidence of inner tube axis, the nozzle joint cover is located the disc outside the outer tube. According to the scheme, the nozzle joint is assembled with the inner pipe through the outer sleeve, when a fluid medium contains a solid medium, the bearing is not contacted with the fluid in the pipeline, the characteristics of working media such as solid-liquid two-phase flow can be fully adapted, the overall structure of the spray head is compact, the diameter and the length of the spray head are smaller than those of a conventional rotary joint with the same pressure, the practical problems of large volume, large resistance, easy clamping stagnation and the like of the conventional rotary joint are solved, the difficulty of processing operation is simplified, and the production cost is reduced.

Description

Rotary spray head for solid-containing liquid flow

Technical Field

The utility model relates to a shower nozzle technical field specifically is a rotatory shower nozzle for containing solid-liquid stream.

Background

In high pressure water cleaning applications, it is sometimes desirable for the spray head to operate in a rotating manner. It is conventional practice to connect a swivel between the nozzle and the pipe. Indeed, rotary joints have wide applications in chemical industries and the like. However, when the fluid pressure is high and the sealing performance is high, the existing rotary joint is large in size or large in rotation resistance, and the using effect is not ideal. In particular, when the fluid inside the pipe is a solid-liquid two-phase flow or a multiphase flow containing solid particles, the solid media in a granular or fibrous form will be embedded in the seal ring or enter the bearing, resulting in failure of the rotary joint. For this reason, a new rotation mechanism needs to be designed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a rotatory nozzle for containing solid-liquid stream, the problem of proposing among the above-mentioned background art has been solved to the not enough of prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a rotatory nozzle for containing solid liquid stream, includes inner tube, outer tube, nozzle joint and rotary mechanism, the outer disc of inner tube has set gradually three archs from top to bottom, the protruding diameter of the most downside of the outer disc of inner tube and middle department is the same, the outer tube cover is located the inner tube outside, the outer tube with the coincidence of inner tube axis, the nozzle joint cover is located the outer disc of outer tube, rotary mechanism locates the outer tube with between the inner tube, rotary mechanism is used for making the outer tube is relative the inner tube rotates and keeps dynamic seal nature.

Preferably, the protruding junction cover of department is equipped with O type circle with middle department of inner tube upside, O type circle outside cover is equipped with the antifriction lantern ring, antifriction lantern ring outside cover is equipped with lip seal, lip seal is located in the outer tube, lip seal follows through frictional force the outer tube rotates in step.

Preferably, the rotating mechanism comprises a second bearing and a first bearing, the second bearing and the first bearing are sequentially sleeved on the outer circular surface of the inner pipe, and the second bearing and the first bearing are both located between the lowest side of the outer circular surface of the inner pipe and the bulges in the middle.

Preferably, a nut is fixedly arranged at the bent part of the nozzle joint.

Preferably, the lower side of the outer circular surface of the inner pipe and the upper side of the outer circular surface of the outer sleeve are both provided with threads.

(III) advantageous effects

The utility model provides a rotatory nozzle for containing solid-liquid stream. The method has the following beneficial effects:

1. according to the scheme, the nozzle joint is assembled with the inner pipe through the outer sleeve, when a fluid medium contains a solid medium, the bearing is not contacted with the fluid in the pipeline, the characteristics of working media such as solid-liquid two-phase flow can be fully adapted, the overall structure of the spray head is compact, the diameter and the length of the spray head are smaller than those of a conventional rotary joint with the same pressure, the practical problems of large volume, large resistance, easy clamping stagnation and the like of the conventional rotary joint are solved, the difficulty of processing operation is simplified, and the production cost is reduced.

2. This scheme is through the design of duplex bearing, and the torque that the reaction force of balanced rivers can produce prevents no longer coaxial between nozzle joint and the inner tube, and then makes lip seal's inner lip and antifriction lantern ring's contact surface local opening lead to sealing failure

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention.

Fig. 3 is a schematic front view of the lip seal 14 of the present invention.

In the figure: 11. an inner tube; 12. an O-shaped ring; 13. a friction reducing collar; 14. a lip-shaped seal ring; 15. an outer sleeve; 16. a second bearing; 17. a first bearing; 20. a nozzle adapter; 21. and a nut.

Detailed Description

The embodiment of the utility model provides a rotatory nozzle for containing solid-liquid stream, as shown in fig. 1-3, including inner tube 11, outer tube 15, nozzle joint 20 and rotary mechanism, 11 outer disc of inner tube has set gradually three archs from top to bottom, 11 outer disc of inner tube bottommost sides and the protruding diameter of middle department are the same, 11 outsides in the inner tube are located to outer tube 15 cover,

outer tube

15 and 11 dead centers in inner tube axis, 15 outer tube of outer tube, nozzle joint 20 covers locates the outer disc of outer tube 15, rotary mechanism locates between outer tube 15 and the inner tube 11, rotary mechanism is used for making 15 relative inner tubes 11 of outer tube rotate and keep dynamic seal nature.

As shown in fig. 2, an O-ring 12 is sleeved at the joint of the upper side protrusion of the inner tube 11 and the middle protrusion, an anti-friction collar 13 is sleeved outside the O-ring 12, the anti-friction collar 13 is made of teflon, the anti-friction collar 13 is used for reducing the friction between the circumferential surface of the inner tube 11 and the circumferential surface of the metal material, a lip-shaped sealing ring 14 is sleeved outside the anti-friction collar 13, the lip-shaped sealing ring 14 is located in an outer sleeve 15, and as shown in fig. 3, the lip-shaped sealing ring 14 synchronously rotates along with the outer sleeve 15 through the friction.

The rotating mechanism comprises a second bearing 16 and a first bearing 17, the second bearing 16 and the first bearing 17 are sequentially sleeved on the outer circular surface of the inner pipe 11, the second bearing 16 and the first bearing 17 are both positioned between the lowest side of the outer circular surface of the inner pipe 11 and the bulges in the middle, so that the torque generated by the reaction force of water flow is balanced, the nozzle joint 20 and the inner pipe 11 are not coaxial any more, and the contact surface between the inner lip of the lip-shaped sealing ring 14 and the antifriction lantern ring 13 is partially opened, so that the sealing failure is caused.

The bent portion of the nozzle joint 20 is fixedly provided with a nut 21, and the nut 21 is matched with the bolt to enable the bolt to be used as a handle, so that the nozzle joint is pulled.

Threads are arranged on the lower side of the outer circular surface of the inner tube 11 and the upper side of the outer circular surface of the outer sleeve 15, and the threads on the outer circular surface of the outer sleeve 15 are used for being connected with the nozzle joint 20.

It should be noted that a snap spring is disposed between the outer circumferential surface of the outer sleeve 15 and the lowest protrusion of the outer circumferential surface of the inner tube 11, and when the thread of the outer circumferential surface of the inner tube 11 fails, the snap spring prevents the outer sleeve 15 from moving axially relative to the inner tube 11.

When the cavity of inner tube 11 is full of pressure fluid, lip of lip sealing ring 14 opens, outer lip and outer tube 15 laminating, antifriction lantern ring 13 is detained to the inner lip, pressure is more big to antifriction lantern ring 13 and inner tube 11 embrace more tightly, when outer tube 15 rotates for inner tube 11, lip sealing ring 14's outer lip and outer tube 15 unite one and do not have relative motion, the relative antifriction lantern ring 13 of inner lip rotates, there is sliding friction between lip sealing ring 14's inner lip and antifriction lantern ring 13, but coefficient of friction is little, turning radius is little, so the torque that frictional force produced is also little, and then reduce the drive power requirement to power supplies such as motors.

When the rotary spray head uses solid-liquid two-phase flow as a transmission medium, because the lip-shaped sealing ring 14 is in interference fit during installation, the solid medium cannot enter the second bearing 16, the lip of the lip-shaped sealing ring 14 is further opened along with the pressure rise in the cavity of the inner pipe 11, and the solid medium is more difficult to leak towards the second bearing 16 through the antifriction lantern ring 13, so that the transmission requirement of solid-liquid-containing flow is met.

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

Claims

1. A rotary spray head for a solids-laden liquid stream, comprising: including inner tube (11), outer tube (15), nozzle joint (20) and rotary mechanism, inner tube (11) outer disc has set gradually three archs from top to bottom, the protruding diameter of inner tube (11) outer disc downside and middle department is the same, outer tube (15) cover is located the inner tube (11) outside, outer tube (15) with inner tube (11) axis coincidence, nozzle joint (20) cover is located outer tube (15) outer disc, rotary mechanism locates outer tube (15) with between inner tube (11), rotary mechanism is used for making outer tube (15) is relative inner tube (11) rotate and keep moving the leakproofness.

2. A rotary sprayer for solids-containing liquids as claimed in claim 1, wherein: inner tube (11) upside arch is equipped with O type circle (12) with middle protruding junction cover of department, O type circle (12) outside cover is equipped with antifriction lantern ring (13), antifriction lantern ring (13) outside cover is equipped with lip seal (14), lip seal (14) are located in outer tube (15), lip seal (14) are followed through frictional force outer tube (15) synchronous rotation.

3. A rotary sprayer for solids-containing liquids as claimed in claim 1, wherein: the rotating mechanism comprises a second bearing (16) and a first bearing (17), the second bearing (16) and the first bearing (17) are sequentially sleeved on the outer circular surface of the inner tube (11), and the second bearing (16) and the first bearing (17) are located between the lowest side of the outer circular surface of the inner tube (11) and the bulges in the middle of the outer circular surface of the inner tube (11).

4. A rotary sprayer for solids-containing liquids as claimed in claim 1, wherein: and a nut (21) is fixedly arranged at the bending part of the nozzle joint (20).

5. A rotary sprayer for solids-containing liquids as claimed in claim 1, wherein: the lower side of the outer circular surface of the inner tube (11) and the upper side of the outer circular surface of the outer sleeve (15) are both provided with threads.