JP2007105611A - Gun type chemical liquid spray working pole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light weight chemical liquid spray working pole having few number of parts and capable of being easily assembled. <P>SOLUTION: In the chemical liquid spray working pole, a chemical liquid spray nozzle (N) composed of a disk plate (26) having an opened nozzle hole (28) and a split core (27) having a pair of spiral recessed grooves (30) notched on the peripheral surface is arranged to be incorporated into a chevron-shaped nozzle head (22) bent from the tip part of an pole main body (20) by a fixed angle (θ), and the spray state of the chemical liquid jetted from the nozzle hole of the disk plate is controlled to be switchable into a thin rod like state extending afar off and a hollow conical state spread at a wide angle to each other by back and forth moving a back and forth operation rod (50) of a core center (54) engaged with the split core of the nozzle with the rotating operation of a grip handle (46) in a handy part of the pole main body. The base end part of the core center and the tip part of the back and forth operation rod are connected to be integrated by a flexible leading nose (53) capable of being naturally bent along the nozzle head and having a fixed length. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a gun-type chemical spraying work rod that is connected to a power sprayer and used by hand.

  As shown in FIGS. 15 and 16, a gun-shaped nozzle head (2) that is bent at a predetermined angle (θ) is soldered to the tip of a chemical solution introducing rod body (1) having a certain length. A chemical spraying work rod is known.

  In this case, a thin disc plate (4) having a nozzle hole (3) and a split core (valve element) in which a pair of spiral grooves (6) facing the circumferential surface of the overhanging flange portion (5a) are cut out. ) (5) and a chemical sprayer nozzle (N) is directly installed in the tip of the nozzle head (2), and the depth of the vortex chamber (S) in the nozzle (N) is By adjusting the grip handle (7) from the hand side of the heel body (1) to a deeper or shallower degree according to the degree of rotational operation, the spray state of the chemical injected from the nozzle hole (3) It is possible to switch to a hollow cone that diffuses widely.

  As a necessary structure for this purpose, a core (valve rod) (8) to be fitted to the barrel portion (5b) of the split core (5) is inserted from the tip side of the nozzle head (2). To this, the urging force of the return spring (compression coil spring) (9) is given, while the core rod (10) that pushes the core core (8) against the urging force is applied to the main body (10). 1), and a separate pair of the core rod (10) and the core core (8) are conical surfaces (8a) (10a) in the bent interior of the nozzle head (2). It is maintained in point contact with each other.

  In this regard, in another gun-type chemical spraying work rod shown in FIG. 17, the core core (valve rod) (8) is long, and an extended nozzle base (11) of a certain length covering the core is used as a nozzle. Although extending from the tip of the head (2) and extending, a separate pair of a core core (8) that receives the urging force of the return spring (9) and a core rod (10) that advances and retreats the core is provided. In the bent inside of the nozzle head (2), the point contact state between the conical surfaces (8a) and (10a) is maintained. (12) is a steady ring of the long core (8), (13) is a nozzle cap (cap nut) screwed and fastened to the tip of the nozzle head (2) or its extended nozzle base (11). ).

  However, in a conventional chemical spraying operation rod having such a nozzle head (2) bent by a certain angle (θ), it is necessary to form a detour channel (14) for the chemical liquid in the nozzle head (2). On top of this, there is no choice but to cast this from gunmetal (brass), and it is also necessary to project and form conical surfaces (8a) and (10a) on the core core (8) and core rod (10), respectively. Thus, the nozzle head (2) is gradually heavier and cannot be used as a medicinal solution spray work hand.

  Further, a separate pair of the core core (8) and a core rod (10) for moving the core core back and forth, a return spring (9) of the core core (8), and a steady rest of the long core core (8) Since it is necessary to prepare the ring (12) and the like, the number of parts becomes very large, and the core (8) and its return spring (9) are connected to the nozzle head (2) or the extension nozzle base (11). Since the core rod (10) must be inserted deeply from the proximal side of the reverse rod body (1) to the nozzle head (2) while being inserted deeply from the distal end side, the assembly work is very troublesome and chemical spraying is required. The mass production effect of working rods cannot be maximized.

  Furthermore, since the chemical solution bypasses the bypass flow path (14) of the nozzle head (2), the circulation of the chemical solution is inferior, and the pressure loss of the power sprayer increases accordingly, and the core core ( Since the core core (8) needs to be pushed forward by the core rod (10) against the return spring (9) of 8), the operation from the hand side is difficult to perform lightly and smoothly.

  The present invention aims to improve such a problem, and in order to achieve the object, according to the structure of claim 1, a nozzle is formed into a square-shaped nozzle head that bends by a certain angle from the distal end portion of the body for introducing a chemical solution. A chemical spray nozzle consisting of a disk plate with a hole and a split core with a pair of spiral grooves cut out on the circumferential surface is installed and installed,

  A chemical liquid ejected from the nozzle hole of the disc plate by moving the advance / retreat operation rod of the core core fitted to the split core of the nozzle forward and backward by the grip handle turning operation from the hand portion of the collar body. In the gun-type chemical spraying work rod that can switch and adjust the spraying state to a thin rod shape and a hollow cone with a wide angle,

  The base end portion of the core and the distal end portion of the advance / retreat operating rod are connected and unified by a flexible leading nose having a certain length that can be bent along the nozzle head.

  In addition, in the configuration of claim 2, as an elbow formed separately from the heel body, the nozzle head is fixed and integrated to the tip of the heel body,

  A chemical spray nozzle is built in and installed in a nozzle base screwed and fastened to the tip of the nozzle head.

  In the configuration of claim 3, the distal end portion of the ridge body is continuously bent as a constant-angle-shaped nozzle head,

  A chemical spray nozzle is built in and installed in a nozzle base screwed and fastened to the tip of the nozzle head.

  In the configuration of claim 4, the forward / backward operation rod is a true cast rod, while the flexible leading nose is a coil spring tightly wound from a stainless steel wire,

  The leading end of the flexible leading nose is fixedly integrated with the base end of the core core, and the disconnecting base end of the leading nose is fixedly integrated with the leading end of the forward / backward operation rod.

  In the construction of claim 5, the forward / backward operation rod is a true cast tube, and the leading nose receiving bracket and the operating rod receiving bracket are fixed and integrated in the plugged state at both ends thereof, while the flexible leading nose is tightly wound from the stainless steel wire. As a coil spring

  The leading end of the flexible leading nose is fixedly integrated with the base end of the core, and the disconnecting base end of the leading nose is fixed and integrated with the leading end of the leading nose bracket.

  Furthermore, in the construction of claim 6, a turn-back pipe having a fixed length is integrally attached to the hand portion of the heel body so as to be attached and integrated, and the handle handle shaft of the grip handle is inserted into the hollow inside of the turn-back pipe from the hand side. While plugging

  A hose joint used to be detachably connected to the power sprayer is inserted into the circumferential surface of the turned-back pipe so that the hose joint can be freely rotated 360 degrees and fitted.

  According to the said structure of Claim 1, the core core fitted to the split core of a chemical | medical solution spray nozzle and the core rod advance / retreat operation rod moved forward / backward by the turning operation of the grip handle are at a constant angle. Are connected through a flexible leading nose of a certain length that can be bent along the nozzle-shaped nozzle head, and the conventional core shown in FIGS. A separate pair of core rods to be advanced and retracted, a return spring that applies urging force to the core core, a special long core core and its steadying ring are no longer required, and the number of assembly parts can be greatly reduced. The mass production effect of chemical spraying work dredging is remarkably improved.

  In addition, the core core, the flexible leading nose that supports the core, and its forward / backward operation rod form a continuous single piece, so that it is inserted along the nozzle head from the proximal side of the heel body and is bent along a fixed angle. It is sufficient that the split core of the chemical spray nozzle is inserted and fitted into the pushed core from the tip side, and the assembly work can be performed quickly and easily.

  In addition, even if the core core and its flexible leading nose and advance / retreat operating rod are inserted and extended from the main body through the nozzle head to the nozzle base, the chemical solution can smoothly flow through the hollow interior without any trouble. It is not necessary to specially form a detour flow path for the chemical solution as in the conventional product in the nozzle head, and the base end of the elbow (pipe joint) according to claim 2 is fixed and integrated with the tip of the heel body. The nozzle head formed as a simple elbow has an effect of significantly reducing the weight of the chemical spraying work rod.

  If the structure of Claim 3 is employ | adopted especially, the separate nozzle head shape | molded as an elbow and the adhering operation | work with respect to the collar body will become unnecessary. By bending the tip of the heel body into a series of heft-shaped nozzle heads, the chemical spraying heel can be made lighter and easier to use.

  In addition, a relatively short nozzle base as shown in FIGS. 1 to 10 and a long nozzle base as shown in FIG. 11 are screwed and fastened to the tip of the nozzle head interchangeably, and the core and its advance / retreat operation. There is also an effect that two kinds of different chemical spraying work rods can be easily obtained by interposing and integrating the flexible leading nose corresponding to the length of the nozzle base between the rods.

  If the structure of Claim 4 is employ | adopted, the said flexible leading nose is used as the coil spring tightly wound from the stainless steel wire, the both ends of the fixed length are the front-end | tip part of a forward / backward operation rod which consists of a true cast rod, It can be directly and stably fixed and integrated with the base end portion of the lead, and there is an effect that the flexible leading nose along the nozzle head can be smoothly bent and the corrosion resistance against chemicals can be improved.

  If the structure of claim 5 is adopted, the advance / retreat operation rod can be made into a hollow true cast tube, and the chemical spraying work rod can be further reduced in weight, and the leading end of the advance / retreat operation rod is plugged. The flexible leading nose made of a coil spring can be stably and firmly inserted and integrated between the nose receiving metal fitting and the core core facing each other, and the durability is also improved.

  Furthermore, if the configuration of claim 6 is adopted, the hose joint freely rotates 360 degrees around the turn-back pipe that is integrally attached to the hand portion of the heel body. Even if the hose joint is connected to a power sprayer with a long flexible hose, there is no risk that the flexible hose will get entangled with the bag body or grip handle, etc. Helps improve workability.

  Hereinafter, the specific configuration of the present invention will be described in detail with reference to the drawings. First, FIGS. 1 to 10 show a gun type chemical spraying work rod corresponding to the conventional product of FIGS. 15 and 16 as a first embodiment of the present invention. Show. (20) is a rod body of a certain length (for example, about 650 mm) and diameter (for example, about 12.7 mm), which is composed of a straight true cast pipe, with a hard synthetic resin grip cover in the middle (21) is sandwiched and integrated.

  (22) is a nozzle head that is inserted and fitted into the tip of the collar body (20), and is fixedly integrated by soldering or brazing. As an elbow (pipe joint) forged from, it is bent into a square shape with a constant angle (θ) (for example, an obtuse angle of about 135 degrees) and a length (for example, about 47 mm on the center line). On the other hand, a male screw (23) is engraved on the circumferential surface of the remaining tip portion, while the diameter of the portion is matched and communicated with the same step as that of the bag main body (20).

  Further, (24) is a nozzle base that is fastened and integrated with the male screw (23) of the nozzle head (22) shaped as such an elbow via an adhesive, and is a comparatively widened tip. A short (for example, a length of about 30 mm) has a substantially funnel shape, and a chemical spray nozzle (N) is built in and installed at the tip thereof. Reference numeral (25) denotes a nozzle cap (cap nut) that keeps the nozzle (N) from coming off, and is detachably screwed to the tip of the nozzle base (24).

  In addition, the chemical spray nozzle (N) is composed of a thin stainless steel disk plate (26) and a substantially inverted T-shaped split core (27) that functions as a valve body as shown in FIG. A small nozzle hole (28) is opened at the center of the disk plate (26).

  On the other hand, the narrow cylindrical portion (27b) of the split core (27) is notched with a cross-shaped split groove (29) and is stretched from the tip of the cylindrical portion (27b). A pair of spiral grooves (30) facing each other are also cut out on the circumferential surface of the large-diameter flange portion (27a).

  Then, the chemical solution is not only fed from the inside of the nozzle base (24) through the spiral groove (30) of the projecting flange portion (27a) but also the split core (27). ) And the disc plate (26) can be led out as a swirl flow into the vortex chamber (S) defined between them. (32) is an O-ring that seals between the nozzle cap (24) and its nozzle cap (25).

  On the other hand, a turn-back pipe (33) of a certain length (for example, about 68 mm) made of a true cast is integrally attached to the proximal portion of the hook main body (20) in an added state, and the turn-back pipe (33 ) And the same diameter as that of the bag main body (20). In addition, a male screw (34) with a fine pitch is engraved on the circumferential surface of the proximal end of the turned-back pipe (33).

  (35) is a substantially Y-shaped true cast hose joint that is inserted into the circumferential surface of such a turn-back pipe (33) so as to be freely rotatable by 360 degrees, and its branched base (36 ) Is detachably connected to the discharge port (39) of the pump (38) in the power sprayer (M) via the flexible hose (37) of an appropriate length as shown in FIG. Yes.

  (40) is a pair of opposing backup rings that sandwich the hose joint (35), and (41) is fastened to the male thread (34) of the turn-back pipe (33), thereby removing the hose joint (35). A fixing nut to be kept in a stopped state, (42) is an O-ring for sealing a fitting surface between the hose joint (35) and the turnback pipe (33), and (43) is on the circumferential surface of the turnback pipe (33). The liquid chemical introduction hole formed through the chemical liquid that has received the pump pressure of the power sprayer (M) passes through the chemical liquid introduction hole (43) from the flexible hose (37) and the hose joint (35). It will be introduced into the hollow interior of (20).

  (44) is a rotating handle shaft that is plugged into the hollow inside of the turnback pipe (33) so that it can be inserted and removed from the hand side. A male screw (45) having a rougher pitch than the male screw (34) of the turnback pipe (33) is engraved, and a grip handle made of a hard synthetic resin ( 46) is integrated. (47) is a fastening nut for the handle (46).

  In addition, a former tightening nut (cap nut) (48) is fastened to the middle portion of the male screw (45) of the rotating handle shaft (44), which is a male screw (34) of the turn-back pipe (33). ) Is also fastened as an attached state. Therefore, if the screw is pulled out from the male screw (34) of the turnback pipe (33) and pulled out, the rotating handle shaft (44) can also be pulled out from the hollow interior of the turnback pipe (33). .

  Further, if the original tightening nut (48) is screwed up and tightened to the male thread (34) of the return pipe (33), the rotating handle shaft is moved relative to the fixed original tightening nut (48). (44) can be moved forward and backward by manual operation of the grip handle (46), and the depth of the vortex chamber (S) in the chemical spray nozzle (N) can be adjusted deeply or shallowly. (49) is an O-ring that seals the fitting surface between the turn-back pipe (33) and the rotating handle shaft (44).

  (50) is planted and integrated into the tip of the pivot handle shaft (44), so that it has a fixed length (for example, about 645 mm) extending along the hollow interior of the heel body (20). This is a straight core rod advancing / retreating rod. In the illustrated embodiment, this is a true cast rod having a diameter of about 5 mm, and its base end screw leg (51) is the tip of the rotating handle shaft (44). The screw hole (52) formed corresponding to the above is fastened and integrated in an implanted state via an adhesive.

  Further, (53) is a flexible leading nose having a certain length (for example, about 150 mm) that can be bent along the nozzle head (22) made of the simple elbow as shown in FIG. Diameter: It consists of a coil spring of stainless steel wire that is bent to about 8mm. The base end of the cut is inserted into the tip of the forward / backward operation rod (50), and is fitted with solder, brazing, adhesive, etc. Are fixed and integrated. For example, the wire diameter of the coil spring is about 1.5 mm.

  And the cutting | disconnection front-end | tip part of the flexible leading nose (53) which reached | attained the hollow inside of the said nozzle cap (24) from the advancing / retreating operation rod (50) is the split core (27) which forms the said chemical | medical solution spray nozzle (N). By fitting with the barrel part (27b), it is inserted into the core (54) that functions as the valve stem of the split core (27), and is also fitted by soldering, brazing, adhesive, etc. Fixed and integrated.

  In that case, the base end portion of the core (valve rod) (54) is configured as a pin having an overhanging partition flange portion (55), and receives and regulates the separated leading end portion of the flexible leading nose (53). The overhanging partition flange portion (55) is dimensioned slightly smaller than the diameter of the flexible leading nose (53).

  However, as shown in the partial modification of FIG. 8, the forward / backward operation rod (50) of the core core (54) is formed as a true cast pipe having a diameter of about 8 mm, and a pin configuration in which a separate partition flange portion (56) projects. The operating rod bracket (57) is fixed and integrated in the plugged state by soldering or brazing to the proximal end portion of the forward / backward operation rod (50), and the proximal end of the operating rod bracket (57) The screw leg portion (58) is fastened and integrated into the corresponding screw hole (52) of the rotating handle shaft (44) in an implanted state through an adhesive.

  On the other hand, a separate lead nose receiving metal fitting (60) in the form of a pin in which the partition flange portion (59) facing the core core (54) protrudes correspondingly is also used as the advance / retreat operating rod (50), which is also made of a true cast pipe. The leading end of the flexible lead nose (53) is fixed to the leading end of the leading nose bracket (60) by soldering or brazing, and the base end of the flexible leading nose (53) is also soldered or The fixing and integration may be performed by brazing or the like, and according to the configuration of such a partial modification, there is an advantage that the chemical spraying work rod can be further reduced in weight.

  In the illustrated embodiment, a hollow coil spring tightly wound so as not to expand and contract in the longitudinal direction (front-rear direction) is employed as the flexible leading nose (53). 22) If it can be bent along itself, it adopts a flexible wire shaft in which a coated wire is wound around a soft core wire, an elastically deformable synthetic resin, a tube rod material made of its elastomer or rubber, etc. These base end portions are fixedly integrated with the advancement / retraction operation rod (50) or the leading nose catch (60) attached thereto, and the remaining distal end portion is fixedly integrated with the core core (54) in a fitted or embedded state. It doesn't matter.

  In any case, in the above-mentioned configuration of the chemical spraying work rod according to the present invention, the core (valve rod) (54) and its forward / backward operation rod (50) have the flexible leading nose (53) of a certain length. Since it is connected and integrated, it is inserted from the hand side of the bag main body (20), and if the core core (54) is pushed forward, this is fixed angle (θ by the flexible leading nose (53). ) And the nozzle head (22), which is bent in a self-shaped manner, and smoothly reaches the inside of the nozzle base (24). As a result, the tip of the nozzle base (24) reaches the core (54). If the split core (valve element) (27) of the chemical spray nozzle (N) is fitted from the side, the disk plate (26) is also inserted, and the nozzle cap (25) is fastened to the nozzle base (24). Well, the assembly work is done easily And the obtaining of the return spring of the core conductors (8), such as a conventional product (9) is not necessary.

  And when performing chemical | medical solution spraying work, such as a fruit tree and agricultural products, the hose coupling (35) of a pre-tack main body (20) is made into the discharge port (39) of a power sprayer (M) of suitable length. After connecting with the flexible hose (37), holding the grip cover (21) and grip handle (46) of the bag main body (20) with both hands, rotating the grip handle (46), The core core (54) is pushed forward by the forward / backward operation rod (50) in the direction indicated by the arrow (F) in FIG.

  Then, since the depth of the vortex chamber (S) in the chemical liquid spray nozzle (N) becomes shallow, the chemical liquid subjected to the pump pressure of the power sprayer (M) is split from the inside of the nozzle base (24). Based on the spiral groove (30) of (27), it is led to the vortex chamber (S) as a swirling flow in one direction, and becomes a collided mist in the vortex chamber (S), and the disk plate (26 ) From the nozzle hole (28).

  Further, if the grip handle (46) is rotated in the reverse direction, the core (54) is pulled back and retracted in the direction indicated by the arrow (R) in FIG. 10 by the forward / backward operation rod (50). Since the depth of the vortex chamber (S) becomes deeper, the chemical liquid that has also received the pump pressure flows from the inside of the nozzle base (24) to the split groove (29) and the central port (31) of the split core (27). Through the vortex chamber (S) and sprayed in the form of a thin rod far from the nozzle hole (28) of the disk plate (26). This is obtained according to the degree of rotation operation.

  In this case, the core core (54), the flexible leading nose (53) and the advance / retreat operating rod (50) for supporting the core core (54), the nozzle body (20), the nozzle head (22), and the nozzle base (24). Even if it is inserted and extended, the chemical solution can circulate through the hollow interior without any trouble, so there is no need to form a bypass channel (14) for the chemical solution as in the conventional product in the nozzle head (22), In other words, as a simple elbow (pipe joint), it is sufficient to interpose the rod main body (20) and the nozzle base (24) in a fixed state, and the nozzle head (22) is prevented from becoming heavy weight. It can be used easily and hand-held to accurately spray the liquid medicine in the desired direction.

  In addition, the chemical liquid flows smoothly without detouring from the main body (20) through the nozzle head (22) to the nozzle base (24), and the core core (54) and its forward / backward operation rod (50) Since the urging force of the return spring (9) is not acting, the pushing forward operation of the core (54) can be performed lightly and smoothly.

  Next, FIG. 11 shows a second embodiment of the present invention corresponding to another conventional product of FIG. 17, in which the tip of the nozzle head (22) is connected to the tip of the male screw (23). A long (for example, about 103 mm) straight pipe nozzle base (24) having the same diameter and communicating steplessly is fastened and integrated interchangeably with the short nozzle base (24) of the first embodiment.

  And according to such a long nozzle base (24), the fixed length of the flexible leading nose (53) is also dimensioned long, but the core core (54) fixedly integrated with the tip thereof, The advancing / retracting operation rod (50) fixedly integrated with the base end portion can be used as a configuration substantially the same as those of the first embodiment. As a result, two types of the chemical spraying work rods in which the nozzle base (24) is changed in length can be easily obtained.

  12 and 13, a long grip cover (21) for holding a desired position to the base end of the nozzle head (22) made of an elbow and a storage box for various earth leakage prevention devices (not shown). It is preferable that a rectangular non-rotating flange (61) serving as a mounting base is also formed so that these can be mounted in a non-rotating state.

  In addition, since the other structure and effect | action in 2nd Embodiment are substantially the same as the said 1st Embodiment, only the corresponding code | symbol with FIGS. 1-10 is entered in the FIGS. Detailed description is omitted.

  However, in the first and second embodiments, the base end portion of the separate nozzle head (22) shaped as an elbow is fixedly integrated with the tip end portion of the rod main body (20) by soldering or brazing. However, when, for example, a copper tube or a stainless steel tube that does not crack with time is adopted as the rod main body (20), the tip portion thereof is subjected to a certain angle (θ as shown in FIG. 14 by bending or other plastic working. ), And the nozzle base (24) can be fastened and integrated to the tip of the nozzle head (22) bent in series as in the first and second embodiments. Belong to the category of the present invention. According to this, it is possible to further reduce the weight of the chemical spraying work rod, and also to improve the mass production effect.

It is explanatory drawing of the use condition which connected the chemical | medical solution spraying work rod of 1st Embodiment which concerns on this invention to the power sprayer. It is an exploded view which shows the chemical | medical solution spraying operation rod of FIG. It is a side view which extracts and shows a separate nozzle head. FIG. 4 is a front view of FIG. 3. FIG. 5 is a sectional view taken along line 5-5 of FIG. It is a slope view which extracts and shows the split core of a chemical | medical solution spray nozzle. It is an enlarged view which extracts and shows the connection state of a flexible leading nose. It is an enlarged view which shows the modification of an advance / retreat operation rod as a connection state with a flexible leading nose. It is sectional drawing of the state which advanced the advance / retreat operation rod of the chemical | medical solution spraying work rod. It is sectional drawing of the state which similarly retracted the advance / retreat operation rod. It is sectional drawing which shows 2nd Embodiment of the chemical | medical solution spraying operation rod which concerns on this invention. It is a side view which shows the modification of a nozzle head. It is a front view of FIG. FIG. 3 is an exploded view corresponding to FIG. 2 in a state where the distal end portion of the ridge body is bent using a nozzle head. It is a side view which shows the conventional chemical | medical solution spraying work rod. It is an expanded sectional view of FIG. It is sectional drawing which shows another conventional chemical | medical solution spraying work rod.

Explanation of symbols

(20) ・ Body body (21) ・ Grip cover (22) ・ Nozzle head (24) ・ Nozzle cap (25) ・ Nozzle cap (26) ・ Disk plate (27) ・ Split core (valve)
(27a)-Overhang flange (27b)-Body cylinder (28)-Nozzle hole (29)-Split groove (30)-Spiral groove (31)-Center port (32)-O-ring (33) Return pipe (34), male thread (35), hose joint (36), cap part (37), flexible hose (38), pump (39), discharge port (40), backup ring (41), fixing nut ( 42) ・ O-ring (43) ・ Chemical liquid introduction hole (44) ・ Rotating handle shaft (45) ・ Male screw (46) ・ Grip handle (47) ・ Fixing nut (48) ・ Fast tightening nut (49) ・ O-ring (50) ・ Advance / retreat operating rod (51) (58) ・ Base screw leg (52) ・ Screw hole (53) ・ Flexible lead nose (54) ・ Core core (valve stem)
(55) (56) (59)-Overhang partition flange (57)-Operating rod bracket (60)-Leading nose bracket (61)-Non-rotating flange (M)-Power sprayer (N)-Chemical spray Nozzle (S), Nozzle vortex chamber (θ), Nozzle head bending angle

Claims (6)

A pair of a disk plate (26) having a nozzle hole (28) and a circumferential surface are formed on the circumferential surface from the tip of the liquid chemical introduction rod body (20) to a heft-shaped nozzle head (22) bent at a certain angle (θ). Incorporating and installing a chemical spray nozzle (N) consisting of a split core (27) with a spiral groove (30) cut out,
The advancement / retraction operation rod (50) of the core (54) fitted to the split core (27) of the nozzle (N) is rotated by the grip handle (46) from the proximal portion of the collar body (20). A gun-type gun that can be moved back and forth by the operation to switch and adjust the spray state of the chemical liquid ejected from the nozzle hole (28) of the disk plate (26) between a thin rod-like shape and a hollow cone with a wide angle. In the chemical spraying work dredge,
A flexible leading nose (53) of a certain length that can bend the base end of the core (54) and the tip of the advance / retreat operating rod (50) along the nozzle head (22). A gun-type chemical spraying work rod, characterized in that it is connected by a single unit. As an elbow shaped separately from the heel body (20), the nozzle head (22) is fixed and integrated to the tip of the heel body (20), and
The gun-type chemical spraying work rod according to claim 1, wherein a chemical spray nozzle (N) is installed in a nozzle base (24) screwed and fastened to the tip of the nozzle head (22). . The tip of the heel body (20) is continuously bent as a square-shaped nozzle head (22) having a constant angle (θ),
The gun-type chemical spraying work rod according to claim 1, wherein a chemical spray nozzle (N) is installed in a nozzle base (24) screwed and fastened to the tip of the nozzle head (22). . While the advance / retreat operation rod (50) is a true cast rod, the flexible leading nose (53) is a coil spring tightly wound from a stainless steel wire,
The leading end of the flexible leading nose (53) is fixed to the base end of the core (54), and the base end of the leading nose (53) is fixed to the leading end of the advance / retreat operation rod (50). 2. The gun-type chemical spraying work rod according to claim 1, wherein The forward / backward operation rod (50) is made of a true cast pipe, and the leading nose receiving bracket (60) and the operating rod receiving bracket (57) are fixedly integrated in the plugged state at both ends thereof, while the flexible leading nose (53) is integrated. As a coil spring tightly wound from stainless steel wire,
The leading end of the flexible leading nose (53) is fixed to the proximal end of the core core (54), and the disconnecting proximal end of the leading nose (53) is fixed to the leading end of the leading nose bracket (60). The gun-type chemical spraying work rod according to claim 1, which is integrated. A fixed length of the return pipe (33) is attached to and integrated with the proximal portion of the saddle body (20), and the grip handle (46) is inserted into the hollow interior of the turned back pipe (33) from the proximal side. While inserting the pivot handle shaft (44)
The hose joint (35) used to be detachably connected to the power sprayer (M) is inserted into the circumferential surface of the turn-back pipe (33) so that the hose joint (35) can be freely rotated 360 degrees and is fitted. The gun-type chemical spraying work rod according to claim 1.

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