KR200475074Y1 - Automatic washing nozzle - Google Patents

Abstract

The present invention minimizes the contact area between the fixed nozzle and the flow nozzle when the flow nozzle is in contact with the fixed nozzle to prevent the foreign matter from being caught between these contact surfaces and further increases the discharge passage of the water, And it is an object of the present invention to provide an automatic cleaning nozzle capable of smoothly discharging and firmly fixing a fixed nozzle to prevent deterioration of nozzle performance due to fluctuation of a spray hole or positional change.
The automatic cleaning nozzle of the present invention is characterized in that the fixing of the nozzle case and the fixing nozzle is performed by engaging the C-shaped ring with the first ring groove and the second ring groove which coincide with each other while the engaging groove and the engaging projection are engaged with each other, And the nozzle is provided with an auxiliary passage for discharging and discharging the washing water between the outer circumferential surface and the inner circumferential surface of the nozzle case and forming an inclined stopping surface on one side of the fixed nozzle located in the auxiliary passage, The moving body is provided with a slanting contact surface contacting the slant stop surface of the fixed nozzle. The first groove of the fixed nozzle and the second groove of the nozzle body coincide with each other at a position where the slant stopping surface and the slanting contact surface are in contact with each other, Respectively.

Description

{AUTOMATIC WASHING NOZZLE}

The present invention relates to an automatic cleaning nozzle, and more particularly, to an automatic cleaning nozzle used for a cleaning process of a fiber filter such as a microdisk filter or a filter cloth of an industrial dehydrator.

In general, the operation of the filter is divided into a filtration process and a cleaning process. The filtration process is a process of making raw water into clean filtrate water by removing suspended matters, and the washing process is a process of washing the filtration filter contaminated with suspended matters during the filtration process using washing water or air.

Various materials are applied to the filter of the filter. For example, an inorganic particulate material such as sand or anthracite can be used as the material of the filter, and fibers may be used. Fiber filter refers to the use of fiber as a filter filter material.

The microdisk filter, which is a type of fiber filter, has advantages such as high flexibility, easy replacement of the filter element (filter element), continuous operation, small washing quantity, compact structure, low maintenance cost and initial installation cost, It is now widely used.

In the cleaning process of the filter, a cleaning nozzle is used for cleaning the contaminated filtration filter. As a prior art of such a cleaning nozzle, Japanese Patent Registration No. 1112683 entitled "Automatic Cleaning Nozzle" (hereinafter referred to as "Prior Art") is known.

1 and 2, the conventional automatic cleaning nozzle has a tip formed with a rear end for coupling with a cleaning pipe and a discharge port 118, as shown in FIGS. 1 and 2, A fixed nozzle 130 which is received and fixed in the nozzle case 110 and a flow nozzle 122 which is accommodated in the nozzle case 110 so as to move in a direction approaching or away from the fixed nozzle 130, (150).

When the fixed nozzle 130 and the flow nozzle 150 are in contact with each other, a first groove and a second groove, which form the injection hole 160, coincide with the front wall of the fixed nozzle 130 and the flow nozzle 150 And the front portions 135 and 156 of the first and second grooves are concave curved surfaces.

A stopping protrusion 120 is formed around the discharge port 118 of the nozzle case 110 to contact the outer surface of the front wall of the fixed nozzle 130 and the outer surface of the front wall of the flow nozzle 150.

1, when the high-pressure cleaning water is supplied from the cleaning pipe (not shown) in a state where the flow nozzle 150 is spaced from the fixed nozzle 130, the flow nozzle 150 are advanced by the pressure of the wash water until they come into contact with the fixed nozzle 130 as shown in FIG. The washing water is sprayed to the contaminated filtering filter through the spray hole 160 formed by matching the flow nozzle 150 and the front portions 135 and 156 of the first groove and the second groove of the fixed nozzle 130.

The flow nozzle 150 is pushed backward by the resilient restoring force of the spring 122 to be separated from the fixed nozzle 130 as shown in FIG. The foreign matter trapped in the flow nozzle 150 is discharged to the outside together with the washing water through the discharge port 118 of the nozzle case 110. When the washing water is sprayed next, This can prevent clogging.

However, in the above-described conventional technique, in constructing the fixed nozzle 130 and the flow nozzle 150, a part of one cylindrical body is cut into oblique lines and a cut part is fixed to the nozzle case 110, The fixed nozzle 130 and the flow nozzle 150 are in contact with each other to form a single cylindrical body and at the same time a spray nozzle 130 is used as the spray nozzle 130 and the remaining cylindrical body is used as the flow nozzle 150, 160 are formed. Therefore, the contact area between the fixed nozzle 130 and the flow nozzle 150 is large, so that minute foreign matter tends to be caught between the contact surfaces. In this case, the injection holes 160 do not coincide precisely, There is a problem that the nozzle performance is lowered.

In addition, since the fixing nozzle 130, which is received and fixed in the nozzle case 110, is fixed by the bolts 116, and the nozzles continuously generate minute vibrations due to repetitive washing water injection and water pressure action, (116) is slightly loosened. In this case, when the washing water is sprayed, the fixing nozzle 130 may be shaken, thereby causing the nozzle performance to deteriorate due to the size and position of the spray hole 160. To prevent this, It is necessary to tighten the bolts 116 when there is an abnormality, which is disadvantageous in terms of maintenance and maintenance.

Also, according to the related art, when the flow nozzle 150 moves in a direction to contact the fixed nozzle 130, the flow nozzle 150 is configured to be rotatable about the movement axis, It is impossible to maintain the set spray angle and jet speed for a few seconds before the beginning of the jet of the washing water and this is also one of the causes for deteriorating the nozzle performance .

The object of the present invention is to minimize the contact area between the fixed nozzle and the flow nozzle when the flow nozzle contacts the fixed nozzle to form the spray hole, And it is an object of the present invention to provide an automatic cleaning nozzle in which the discharge of foreign matter can be smoothly performed by further increasing the washing water discharge passage formed when the flow nozzle is separated from the fixed nozzle.

Another object of the present invention is to fix the fixed nozzle, which is received and fixed in the nozzle case, firmly so as not to flow due to the fine vibration, thereby preventing deterioration of the nozzle performance due to fluctuation of the injection hole or positional change, The present invention also provides an automatic cleaning nozzle that can eliminate the troubles associated with maintenance for maintenance.

Another object of the present invention is to further improve the performance of the nozzle by precisely spraying the nozzle at a predetermined spray angle and injection speed even at the initial stage of the spray of the washing water so that the flow nozzle smoothly moves accurately without rotating around the moving axis It is possible to provide an automatic cleaning nozzle.

In order to accomplish the above object, the present invention provides a nozzle device comprising: a nozzle case having a rear end coupled with a cleaning pipe and a tip end formed with a discharge port; A fixed nozzle received and fixed to the nozzle case; A flow nozzle accommodated in the nozzle case so as to be movable toward or away from the fixed nozzle; And a spring installed between the nozzle case and the flow nozzle such that the flow nozzle exerts an elastic force in a direction away from the fixed nozzle, And the second groove is formed at the tip of the fixed nozzle and the flow nozzle, respectively, wherein the nozzle case and the fixed nozzle are fixed by forming an engaging groove at both ends of the nozzle case, Wherein the first projecting portion and the second projecting portion of the nozzle case are formed in a state in which the engaging protrusion is fitted into the engaging groove and the first ring groove and the second ring groove are engaged with the nozzle case and the engaging projection in the circumferential direction And a C-shaped ring is coupled to the first ring groove and the second ring groove, respectively, and the outer circumferential surface of one side of the fixed nozzle And a passage formed between the flow nozzle and the fixed nozzle when the flow nozzle is spaced apart from the fixed nozzle is formed so as to communicate with the auxiliary passage and the fixed nozzle disposed in the auxiliary passage, Wherein the flow nozzle comprises a moving body that moves in a nozzle case, a movable body that is received in and fixed to the moving body and cooperates with the first groove of the fixed nozzle to form a spray hole, Wherein the movable body is formed with a cylindrical portion having an inner circumferential surface that is fitted to the outside of the fixed nozzle, and a tip portion of the cylindrical portion is formed with an inclined contact surface contacting the inclined stop surface of the fixed nozzle The first groove of the fixed nozzle and the second groove of the nozzle body coincide with each other at a position where the inclined stopping surface is in contact with the inclined contact surface, Wherein the movable body and the nozzle body are fixed by forming an engaging groove on both sides of the tip of the cylindrical portion of the moving body and forming engaging projections on both sides of the nozzle body to engage with the engaging grooves of the moving body, The third ring groove and the fourth ring groove are formed in the circumferential direction on the outer circumferential surface of the movable body and the exposure body in a state in which the engaging protrusion of the nozzle body is fitted to the engaging groove of the third ring groove and the fourth ring groove, Shaped ring, which is made by joining a ring-shaped ring.

Also, the present invention is characterized in that a straight groove is formed in the moving direction on the outer circumferential surface of the moving body of the flow nozzle, and a straight guide pin inserted in the straight groove is fixed to the nozzle case.

According to the present invention having the above-described characteristic features, when the inclined contact surface of the flow nozzle comes into contact with the inclined stop surface of the fixed nozzle, the first groove of the fixed nozzle is aligned with the second groove of the flow nozzle, And the foreign matter existing on the inclined stopping surface is removed by the washing water through the auxiliary passage formed between the nozzle case and the fixed nozzle so that the foreign matter is caught between the inclined stopping surface and the inclined contact surface Therefore, it is possible to improve the nozzle performance by surely maintaining the spray angle and the spraying speed of the wash water set by matching the spray holes at the correct positions.

Also, since the cleaning water is discharged not only between the fixed nozzle and the nozzle body of the flow nozzle when the flow nozzle is separated from the fixed nozzle, but also through the auxiliary passage between the nozzle case and the fixed nozzle, a passage So that the effect of discharging foreign matter more smoothly is obtained.

The fixed nozzle and the nozzle case fixing structure of the present invention are characterized in that the fitting projection of the fixing nozzle is fitted to the coupling groove of the nozzle case and the C-shaped ring is coupled to the first and second ring grooves of the fixed nozzle, It is possible to prevent the fixed nozzle from flowing during the injection of the washing water, thereby preventing the deterioration of the nozzle performance due to the change of the position of the spray hole or the shape change, There is an effect of eliminating the troublesome work involved.

In addition, since the linear nozzle formed on the flow nozzle and the linear guide pin fixed on the nozzle case prevent the flow nozzle from rotating about the movement axis, the linear movement is smoothly performed, And the nozzle performance can be further improved by maintaining the spray angle and the injection speed.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 and Fig. 2 are sectional views of an operating state of a conventional automatic cleaning nozzle. Fig.
3 is a perspective view of an automatic cleaning nozzle according to the present invention;
4 is an exploded perspective view of another automatic cleaning nozzle in the present invention.
5 and 6 are cross-sectional views of an automatic cleaning nozzle according to the present invention in an operating state;
7 is a right side view of Fig.
Figure 8 is a right side view of the flow nozzle in Figure 5;
9 is a partially cutaway sectional view showing a linear movement configuration of the flow nozzle in the automatic cleaning nozzle of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The automatic cleaning nozzle according to the present invention is for spraying the cleaning water introduced from the cleaning pipe (not shown) into the object to be cleaned such as a filtration filter, and includes a nozzle case 10 as shown in FIGS. 3 to 5, A fixed nozzle 20, a flow nozzle 30, and a spring 40.

The nozzle case 10 has an inner space for accommodating the fixed nozzle 20, the flow nozzle 30, and the spring 40. The outer surface of the rear end of the nozzle case 10 is provided with a screw thread 11 for screw connection with a cleaning pipe (not shown), and a discharge port 12 is provided at the tip end thereof.

The fixed nozzle 20 is located in the inner space of the nozzle case 10 and is fixed to the nozzle case 10. The fixing of the nozzle case 10 and the fixing nozzle 20 is performed by forming the engaging groove 13 at both ends of the nozzle case 10 as shown in Figs. 3, 4 and 7, The engaging protrusion 22 is fitted to the engaging groove 13 of the nozzle case 10 at both sides thereof. The first ring groove 14 and the second ring groove 23 which coincide with each other when the engaging protrusion 22 is fitted into the engaging groove 13 are engaged with the outer circumference of the nozzle case 10 and the engaging protrusion 22 And the C-shaped ring 41 is engaged with the first ring groove 14 and the second ring groove 23, respectively. A first groove 21 is formed in the front end of the fixed nozzle 20 and the first groove 21 forms a jet hole 50 together with the second groove 31 of the flow nozzle 30 to be described later 6, when the stationary nozzle 20 and the flow nozzle 30 are brought into contact with each other, the first groove 21 and the second groove 31 are formed to coincide with each other.

The flow nozzle 30 is located in the inner space of the nozzle case 10 so as to move toward or away from the fixed nozzle 20 and a packing 52 is provided between the nozzle case 10 and the flow nozzle 30 So that the washing water flows into the flow nozzle 30. The flow nozzle (30) forms a second groove (31) on the inner side of the tip end.

The spring 40 is elastically provided between the nozzle case 10 and the flow nozzle 30 so that the flow nozzle 30 exerts an elastic force in a direction away from the fixed nozzle 20 (in a direction away from the fixed nozzle 20). Therefore, when no washing water flows from the cleaning pipe or a relatively weak pressure washing water is introduced, the flow nozzle 30 is placed in a state spaced apart from the fixed nozzle 20 as shown in FIG. 5 by the elastic force of the spring 40 . However, when the high-pressure washing water flows from the cleaning pipe, the flow nozzle 30 is brought into contact with the fixed nozzle 20 as shown in FIG. 6 by the pressure of the washing water.

An auxiliary passage 51 is provided between the outer circumferential surface of one side of the fixed nozzle 20 and the inner circumferential surface of the nozzle case 10 to discharge the washing water when the flow nozzle 30 is separated from the fixed nozzle 20. [ . 5, when the flow nozzle 30 is separated from the fixed nozzle 20, not only between the fixed nozzle 20 and the flow nozzle 30 but also between the nozzle case 10 and the fixed nozzle 20 Since the washing water is discharged, the passage for discharging the foreign matter is further increased.

The fixed nozzle 20 located in the auxiliary passage 51 is formed with an inclined stopping surface 24 which is in contact with the inclined contact surface 32b of the flow nozzle 30, The first groove 21 of the fixed nozzle 20 and the second groove 31 of the flow nozzle 30 coincide with each other when the inclined contact surface 32b of the flow nozzle 30 contacts the slant stopper surface 24 of the fixed nozzle 20. [ So as to form the spray hole 50.

The flow nozzle 30 includes a moving body 32 that moves in the nozzle case 10 and a second groove 21 which is received in and fixed to the moving body 32 and coincides with the first groove 21 of the fixed nozzle 20, (33) having the second groove (31) for forming the second groove (50).

In the case where the flow nozzle 30 is separated and formed by the moving body 32 and the nozzle body 33, the space for machining the second groove 31 is wider than that of the conventional integral type flow nozzle, The shape of the first groove 21 and the shape of the second groove 31 forming the second groove 50 can be variously processed, and it is easy to set the jetting angle and the jetting speed suitable for various cleaning applications.

The movable body 32 has a cylindrical portion 32a having an inner circumferential surface fitted to the outside of the fixed nozzle 20 and a packing 53 is provided on the inner circumferential surface of the cylindrical portion 32a, The watertightness is maintained between the cylindrical portion 32a and the fixed nozzle 20 in a state where the portion 32a is fitted to the outer peripheral surface of the fixed nozzle 20. [ An inclined contact surface 32b is formed at the tip of the cylindrical portion 32a to contact the inclined stopping surface 24 of the fixed nozzle 20. As shown in FIG.

The movable body 32 and the nozzle body 33 can be fixed by forming engagement grooves 32c at both ends of the cylindrical portion 32a of the movable body 32 as shown in Figs. 4, 5, and 8, Engagement projections 33a are formed on both sides of the nozzle body 33 to engage with the engaging grooves 32c of the moving body 32. [ The third ring grooves 32d and the fourth ring grooves 33b which match with the engaging protrusions 33a of the nozzle body 33 fit into the engaging grooves 32c of the moving body 32 are moved to the moving body 32, And the C-shaped ring 42 is engaged with the third ring groove 32d and the fourth ring groove 33b, respectively.

5 and 9, a linear groove 32e is formed in the moving direction on the outer peripheral surface of the moving body 32 of the flow nozzle 30, and the straight line groove 32e is formed in the nozzle case 10, The linear guide pin 15 inserted into the groove 32e is fixed, so that the linear movement of the flow nozzle 30 is smoothly performed.

The operation of the automatic cleaning nozzle having such a configuration will be described below.

6, when the high-pressure cleaning water is supplied from the cleaning pipe (not shown) in a state where the flow nozzle 30 is separated from the fixed nozzle 20 as shown in FIG. 5, And moves until the inclined contact surface 32b of the moving body 32 comes into contact with the inclined stopping surface 24 of the fixed nozzle 20 as shown in FIG.

The inclined contact surface 32b of the flow nozzle 30 is brought into contact with the inclined stopping surface 24 of the fixed nozzle 20 and the first groove 21 of the fixed nozzle 20 and the flow nozzle 30 are brought into contact with each other, And the second groove 31 formed in the nozzle body 33 of the nozzle body 33 of the nozzle body 33 of the nozzle body 33 of the nozzle body 33 of the nozzle body 33 of the nozzle body 33 forms the spray hole 50,

At this time, since the straight groove 32e of the moving body 32 is guided by the linear guide pin 15 of the nozzle case 10 when the flow nozzle 30 is moved, the moving body 32 is accurately rotated without being rotated around the moving axis So that the formation of the spray holes 50 for spraying the washing water can be performed at an accurate point in time. Therefore, the spray angle and the spray speed set at the initial stage of the washing water can be reliably maintained to improve the nozzle performance .

When the fixed nozzle 20 and the flow nozzle 30 are in contact with each other, the inner circumferential surface of the cylindrical portion 32a formed in the moving body 32 of the flow nozzle 30 is fitted to the outer circumferential surface of the fixed nozzle 20 And the water between the cylindrical portion 32a and the fixed nozzle 20 is kept watertight by the packing 53 so that the washing water does not flow into the auxiliary passage 51 but is sprayed only into the spray hole 50. [

5, the movable body 32 of the flow nozzle 30 and the nozzle body 33 are moved by the elastic force of the spring 40 to the fixed nozzle 20, Whereby a passage is formed between the stationary nozzle 20 and the nozzle body 33 of the flow nozzle 30 and the foreign matter present inside the flow nozzle 30 flows through the passage A passage is formed between the cylindrical portion 32a of the moving body 32 and the outer circumferential surface of the fixed nozzle 20 by the backward movement of the flow nozzle 30 so that the washing water is fixed to the nozzle case 10 And also flows into the auxiliary passage 51 between the nozzles 20, so that the foreign matter discharge passage is further increased, and the foreign matter can be discharged more smoothly.

Moreover, since the washing water flowing into the auxiliary passage 51 flows to the inclined stopping surface 24 of the fixed nozzle 20, it is possible not only to prevent the foreign matter from adhering to the inclined stopping surface 24, Even if it is attached on the inclined stopping surface 24, it can be removed by the discharge pressure of the washing water.

Therefore, when the flow nozzle 30 is advanced again and the inclined contact surface 32b of the flow nozzle 30 contacts the inclined stopping surface 24 of the fixed nozzle 20, there is no fear of foreign matter between them, The first groove 21 of the fixed nozzle 20 and the second groove 31 of the flow nozzle 30 coincide with each other at precise positions to form a normal shape spray hole 50. Therefore, And the injection speed can be reliably maintained to improve the nozzle performance.

It is to be understood that the scope of the present invention is not limited to the disclosed embodiment and that the scope of the present invention is not limited to the disclosed embodiments, It will be understood by those skilled in the art that various changes, modifications, or substitutions will be possible, and that these embodiments are within the scope of the present invention.

10: nozzle case 12:
13: engaging groove 14: first ring groove
15: straight guide pin 20: fixed nozzle
21: first groove 22: engaging projection
23: second ring groove 24: inclined contact surface
30: flow nozzle 31: second groove
32: Moving body 32a:
32b: oblique contact surface 32c: engaging groove
32d: third ring groove 32e: straight groove
40: Springs 41, 42: C-shaped ring
50: minute hole 51: auxiliary passage

Claims (2)

A nozzle case having a rear end coupled to the cleaning pipe and having a tip formed with a discharge port; A fixed nozzle received and fixed to the nozzle case; A flow nozzle accommodated in the nozzle case so as to be movable toward or away from the fixed nozzle; And a spring that is elastically provided between the nozzle case and the flow nozzle to exert an elastic force in a direction in which the flow nozzle moves away from the fixed nozzle,
And a first groove and a second groove are formed at the ends of the fixed nozzle and the flow nozzle, respectively, when the fixed nozzle and the fluid nozzle are in contact with each other,
The nozzle case and the fixed nozzle are fixed by forming an engaging groove on both sides of the tip of the nozzle case and forming engaging projections on both sides of the fixed nozzle to engage with engaging grooves of the nozzle case, And the first ring groove and the second ring groove are formed in the circumferential direction on the outer circumferential surface of the nozzle case and the engaging projection, respectively, so that the C ring is engaged with the first ring groove and the second ring groove,
A supplementary passage is formed between an outer circumferential surface of one side of the fixed nozzle and an inner circumferential surface of the nozzle case and a passage formed between the flow nozzle and the fixed nozzle when the flow nozzle is separated from the fixed nozzle is formed to communicate with the auxiliary passage And an inclined stopping surface is formed on the outer circumference of one side of the fixed nozzle located in the auxiliary passage,
Wherein the flow nozzle is formed by a moving body moving in a nozzle case and a nozzle body formed and fixed to the moving body and having the second groove formed in correspondence with the first groove of the fixed nozzle,
Wherein the movable body is provided with a cylindrical portion having an inner circumferential surface fitted to the outside of the fixed nozzle, and a slant contact surface contacting the slant stop surface of the fixed nozzle is formed at the tip of the cylindrical portion so that the slant stop surface and the slant contact surface The first groove of the fixed nozzle and the second groove of the nozzle body coincide with each other to form a spray hole,
Wherein the movable body and the nozzle body are fixed by forming an engaging groove on both sides of the cylindrical portion of the moving body and forming engaging projections on both sides of the nozzle body to engage with engaging grooves of the moving body, The third ring groove and the fourth ring groove are formed in the circumferential direction on the outer circumferential surface of the moving body and the exposure body in a state in which the engaging protrusions of the body are fitted to each other so that the C ring is engaged with the third ring groove and the fourth ring groove Wherein the cleaning nozzle is provided with a nozzle. The automatic cleaning nozzle according to claim 1, wherein a straight groove is formed in the moving direction of the moving body on the outer peripheral surface of the moving nozzle, and a straight guide pin inserted in the straight groove is fixed to the nozzle case.

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