TWI644730B - Liquid spray nozzle - Google Patents

Abstract

本發明之課題在於針對在操作桿之前端設置有噴霧頭之液體散布噴嘴，確保液體噴霧模式之切換功能，而且，可藉由小型化之機構簡單且準確地進行操作桿之長度調整。 An object of the present invention is to provide a liquid dispensing nozzle provided with a spray head at the front end of the operating lever to ensure the switching function of the liquid spray mode, and to adjust the length of the operating rod simply and accurately by a miniaturized mechanism.

由第1噴管2a、第2噴管2b、導管2c、鎖定管2d之四者構成液體散布噴嘴1之操作桿2，且藉由使第2噴管2b與鎖定管2d自第1噴管2a與導管2c之間出沒而將操作桿2設為可伸縮，藉由使設置於導管2c之前端之鎖定構件4之可動卡止爪4f卡止於設置在鎖定管2d之外周之卡止用凹部2e，而保持長度調整位置。又，將管接頭5介置於噴霧頭3與操作桿2之間，並藉由使該管接頭之螺紋接管5b相對於套節5a之螺入量變化，而切換利用閥6之液體供給路7對於噴霧頭3內之液體通路之連接狀態，從而使來自噴霧頭3之液體之噴霧模式變化。 The operation nozzle 2 of the liquid dispersion nozzle 1 is constituted by four of the first nozzle 2a, the second nozzle 2b, the duct 2c, and the lock tube 2d, and the second nozzle 2b and the lock tube 2d are moved from the first nozzle The operation lever 2 is retractable between the 2a and the duct 2c, and the movable locking claw 4f of the lock member 4 provided at the front end of the duct 2c is locked to the outer circumference of the lock tube 2d. The recess 2e maintains the length adjustment position. Further, the pipe joint 5 is interposed between the spray head 3 and the operating rod 2, and the liquid supply path of the use valve 6 is switched by changing the screwing amount of the nipple 5b of the pipe joint with respect to the sleeve 5a. 7 For the connection state of the liquid passages in the spray head 3, the spray pattern of the liquid from the spray head 3 is changed.

Description

液體散布噴嘴 Liquid dispensing nozzle

本發明係關於一種進行藥劑之散佈或灑水之液體散佈裝置之液體散布噴嘴，詳細而言，本發明係關於一種可既確保液體噴霧模式之切換功能亦進行操作桿之簡單且準確之長度調整之液體散布噴嘴。 BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a liquid dispensing nozzle for dispensing or dispensing a liquid dispensing device. In particular, the present invention relates to a simple and accurate length adjustment of an operating rod that ensures both a liquid spray mode switching function and a switching function. The liquid spreads the nozzle.

作為標題之液體散布噴嘴之先前技術，例如有如下述專利文獻1、2、3所示者。 As a prior art of the liquid discharge nozzle of the title, for example, as shown in the following Patent Documents 1, 2, and 3.

專利文獻1、2之液體散布噴嘴於將內管與外管組合而成之操作桿之內部(自操作桿之根部之液體導入口至設置於操作桿之前端之噴霧頭之液體供給路之中途)設置閥，並利用該閥切換操作桿之內部之液體通路之連接狀態而使自操作桿之前端之噴霧頭噴出之液體之噴霧模式變化。 The liquid dispersing nozzles of Patent Documents 1 and 2 are inside the operating rod in which the inner tube and the outer tube are combined (from the liquid introduction port at the root of the operating rod to the liquid supply path of the spray head provided at the front end of the operating rod) The valve is set and the valve is used to switch the connection state of the liquid passage inside the operating rod to change the spray pattern of the liquid ejected from the spray head at the front end of the operating rod.

該液體散布噴嘴分別將操作桿之內管固定於將套節(socket)與螺紋接管組合而成之管接頭之上述螺紋接管，將操作桿之外管固定於上述套節。 The liquid dispensing nozzle respectively fixes the inner tube of the operating rod to the nipple of the pipe joint in which the socket and the nipple are combined, and fixes the outer tube of the operating rod to the sleeve.

又，分別將上述閥之閥體設置於操作桿之內管，將閥座設置於操作桿之外管，若使螺紋接管相對於上述套節之螺入量變化，則於上述內管與外管產生軸向之相對移動而上述閥之閥體相對於閥座接觸或分離，藉此，操作桿之內部之液體通路之連接狀態切換而噴霧模式自狹角噴霧(直進噴射)變化為廣角噴霧或自廣角噴霧變化為狹角噴霧。 Further, the valve body of the valve is respectively disposed in the inner tube of the operating rod, and the valve seat is disposed outside the operating rod, and if the screwing amount of the threaded joint is changed with respect to the sleeve, the inner tube and the outer tube are The tube generates axial relative movement and the valve body of the valve contacts or separates from the valve seat, whereby the connection state of the liquid passage inside the operating rod is switched and the spray mode is changed from a narrow angle spray (straight forward injection) to a wide angle spray. Or change from a wide-angle spray to a narrow-angle spray.

另一方面，上述專利文獻3之液體散布噴嘴係將旋轉管接頭設置於操作桿之縱向中途，並經由該旋轉管接頭將操作桿之前端側與後部側以能以相對於長度方向呈直角之軸為支點進行旋轉之方式連結，並藉由使分別連結操作桿之前端側與後部側之旋轉管接頭之2個構件相對旋轉，而可將操作桿摺疊而縮短操作桿之全長。 On the other hand, the liquid dispensing nozzle of the above-mentioned Patent Document 3 is such that the rotary pipe joint is disposed in the longitudinal direction of the operating lever, and the front end side and the rear side of the operating lever can be at right angles with respect to the longitudinal direction via the rotary pipe joint. The shaft is coupled so as to rotate the fulcrum, and by rotating the two members of the rotary joints connecting the front end side and the rear side of the operating rod, respectively, the operating rod can be folded to shorten the total length of the operating rod.

[先前技術文獻] [Previous Technical Literature] [專利文獻] [Patent Literature]

[專利文獻1]日本專利特開平1-228564號公報 [Patent Document 1] Japanese Patent Laid-Open No. 1-228564

[專利文獻2]日本專利特開2008-110318號公報 [Patent Document 2] Japanese Patent Laid-Open Publication No. 2008-110318

[專利文獻3]日本專利特開2004-66083號公報 [Patent Document 3] Japanese Patent Laid-Open Publication No. 2004-66083

上述專利文獻1、2所記載之液體散布噴嘴係利用操作桿之內管與外管之軸向相對移動而使噴霧模式切換用之閥開閉，因此因構造上之限制而無法對操作桿進行長度調整。 In the liquid dispersion nozzles described in Patent Documents 1 and 2, since the valve for switching the spray mode is opened and closed by the relative movement of the inner tube of the operation rod and the outer tube, the length of the operation lever cannot be made due to structural limitations. Adjustment.

相對於此，上述專利文獻3之液體散布噴嘴雖可縮短操作桿之長度，但操作管係由單管構成，因此無法如專利文獻1之液體散布噴嘴般改變噴霧模式。 On the other hand, in the liquid dispensing nozzle of Patent Document 3, the length of the operating rod can be shortened. However, since the operation tube is composed of a single tube, the spray pattern cannot be changed as in the liquid dispensing nozzle of Patent Document 1.

又，專利文獻3之液體散布噴嘴由於在將操作桿摺疊時該操作桿之前端側與後部側成為並列配置，故而尺寸縮小之效果不充分，操作亦難以進行。 Further, in the liquid dispensing nozzle of Patent Document 3, when the operation lever is folded, the front end side and the rear side of the operation lever are arranged side by side, so that the effect of downsizing is insufficient, and the operation is also difficult.

因此，本發明之課題在於針對液體散布噴嘴，可確保液體噴霧模式之切換功能且藉由小型化之機構簡單且準確地進行操作桿之長度調整。 Therefore, an object of the present invention is to provide a liquid dispensing nozzle that can ensure the switching function of the liquid spray mode and that the length of the operating lever can be easily and accurately adjusted by a miniaturized mechanism.

為了解決上述問題，於本發明中，如下文所述般構成液體散布 噴嘴，該液體散布噴嘴係於自操作桿之根部之液體導入口至設置於操作桿之前端之噴霧頭之液體供給路中設置閥，並利用該閥切換上述液體供給路相對於上述噴霧頭內之液體通路之連接狀態而使來自上述噴霧頭之液體之噴霧模式變化。 In order to solve the above problems, in the present invention, liquid dispersion is constructed as described below. a nozzle for setting a valve in a liquid supply path from a liquid introduction port at a root portion of the operation lever to a spray head provided at a front end of the operation lever, and switching the liquid supply path relative to the spray head by the valve The spray state of the liquid from the spray head is changed by the connection state of the liquid passage.

即，將上述操作桿以如下構件構成：第1噴管及導管，該第1噴管構成液體供給路，該導管將一端固定於該第1噴管並配置於第1噴管之外周；第2噴管，其液密且軸向滑動自如地嵌於上述第1噴管之外周；及鎖定管，其於外周具有於管軸方向上以固定間距排列之卡止用凹部與沿軸向延伸之鍵槽，同心地配置於上述第2噴管之外周，且一端固定於上述第2噴管之一端附近，另一端側與第2噴管一起滑動自如地***至上述第1噴管與上述導管之間。 That is, the operation lever is configured by a first nozzle and a duct, and the first nozzle constitutes a liquid supply path, and the catheter has one end fixed to the first nozzle and disposed on the outer circumference of the first nozzle; a nozzle which is fluid-tight and axially slidably fitted to the outer circumference of the first nozzle; and a locking tube having a locking recess arranged at a fixed pitch in the tube axis direction and extending in the axial direction on the outer circumference The key groove is concentrically disposed on the outer circumference of the second nozzle, and one end is fixed to the vicinity of one end of the second nozzle, and the other end side is slidably inserted into the first nozzle and the duct together with the second nozzle. between.

並且，將該操作桿、安裝於上述導管之自由端側之端部之鎖定構件、上述噴霧頭、介置於該噴霧頭與上述操作桿之間之具備套節及螺入該套節之螺紋接管之管接頭、及上述閥進行組合，且 使上述鎖定構件包含：可動卡止爪，其由彈簧彈推而進入上述鎖定管之外周之卡止用凹部；解鎖桿，其對該可動卡止爪施加與上述彈簧之彈推方向為相反方向之力；及鍵，其可動嵌合於上述鍵槽。 Further, the operating lever, the locking member attached to the end of the free end side of the duct, the spray head, and the thread interposed between the spray head and the operating rod, and the thread screwed into the sleeve The pipe joint that takes over, and the above valve are combined, and The locking member includes: a movable locking claw that is pushed by a spring to enter a locking recess of the outer circumference of the locking tube; and an unlocking lever that applies the opposite direction of the spring pushing direction of the movable locking claw a force; and a key that is movably fitted to the keyway.

又，分別將上述管接頭之套節與螺紋接管之任一者連結於上述噴霧頭、將另一者連結於連接噴霧頭之側之噴管，並分別將上述閥之閥體設置於連接上述噴霧頭之側之噴管，將閥座設置於上述噴霧頭。 Further, each of the socket joint and the threaded joint of the pipe joint is connected to the spray head, and the other is connected to a nozzle connected to the side of the spray head, and the valve body of the valve is respectively connected to the above The nozzle on the side of the spray head is provided with the valve seat on the spray head.

該液體散布噴嘴亦可將第1噴管配置於操作桿之前側，但與其相比，較佳為將第2噴管配置於操作桿之前側，並將噴霧頭連接於該第2噴管之前端側。 The liquid dispensing nozzle may be disposed on the front side of the operating rod, but the second nozzle is preferably disposed on the front side of the operating rod, and the spray head is coupled to the second nozzle. Front side.

又，較佳為，將上述鎖定構件之解鎖桿設為以與操作管之軸正交之方向之支軸為支點進行蹺板運動之構造，於該解鎖桿之一端設置上述可動卡止爪，並於將上述支軸夾於中間之另一端側形成桿操作 部。 Further, preferably, the unlocking lever of the lock member is configured to perform a seesaw movement with a support shaft in a direction orthogonal to an axis of the operation tube as a fulcrum, and the movable latching claw is provided at one end of the unlocking lever. And forming the rod operation on the other end side of the above-mentioned support shaft unit.

進而，亦較佳為，將圓筒狀之活塞固定於上述鎖定管之***至上述第1噴管與導管之間之側之端部，將該活塞液密地安裝於上述第2噴管之活塞設置側之端部，並將該活塞液密且滑動自如地嵌於第1噴管之外周而將第1噴管與第2噴管之間密封。 Further, it is preferable that a cylindrical piston is fixed to an end portion of the lock pipe that is inserted into a side between the first nozzle and the pipe, and the piston is liquid-tightly attached to the second nozzle. The end portion of the piston is provided on the side, and the piston is sealed in a liquid-tight and slidable manner around the outer circumference of the first nozzle to seal the first nozzle and the second nozzle.

此外，亦較佳為，於上述管接頭包含將上述螺紋接管螺入內側之調整用螺紋接管，該調整用螺紋接管可相對旋轉地連結於上述操作桿，上述螺紋接管液密地連結於上述噴霧頭之套管，分別於液密地進入上述螺紋接管之內側之上述操作桿之前端設置有上述閥之閥體、於上述噴霧頭之內部設置有上述閥之閥座，並藉由上述螺紋接管相對於上述調整用螺紋接管之螺入量之增減而進行上述閥之開閉，而且，於上述調整用螺紋接管與上述螺紋接管之間設置有容許該兩者之軸向相對移動並於爪進入齒槽之位置使兩者之相對旋轉之阻力增大之棘爪。 Further preferably, the pipe joint includes an adjusting nipper for screwing the nipple into the inner side, and the adjusting nip pipe is rotatably coupled to the operating rod, and the nipple is fluidly coupled to the spray a sleeve of a head, wherein a valve body of the valve is disposed at a front end of the operating rod that is liquid-tightly inserted into an inner side of the nipple, and a valve seat of the valve is disposed inside the spray head, and the threaded socket is provided by the threaded tube Opening and closing the valve with respect to the increase or decrease of the screwing amount of the adjusting nipple, and providing an axial relative movement between the adjusting nip and the nipper to enter the claw The position of the tooth groove is such that the resistance to the relative rotation of the two increases.

較佳為，上述棘爪係分別使上述調整用螺紋接管包含具有沿軸向延伸之齒槽之內齒輪、使上述螺紋接管包含於前端具備進入上述齒槽之爪之彈性臂，於上述爪進入上述齒槽而卡止之位置提高上述調整用螺紋接管與上述螺紋接管之相對旋轉之阻力。 Preferably, the pawl is configured such that the adjusting nipple includes an internal gear having a tooth groove extending in the axial direction, and the threaded pipe includes an elastic arm having a claw that enters the tooth groove at a tip end, and the claw enters The position at which the tooth groove is locked increases the resistance of the adjustment nip and the nip.

又，較佳為，上述調整用螺紋接管包含鎖定環，該鎖定環將套節可旋轉且不可軸向移動地安裝於上述操作桿並螺入該套節，並於任意之螺入位置使調整用螺紋接管與套節之相對旋轉之阻力較調整用螺紋接管與上述螺紋接管之相對旋轉之阻力更為增大。 Moreover, preferably, the adjusting nipple includes a locking ring that is rotatably and non-axially movable to the operating rod and screwed into the sleeve, and is adjusted at any screwing position. The resistance to the relative rotation of the nipple and the ferrule is greater than the resistance of the nipple to the relative rotation of the nipple.

本發明之液體散布噴嘴可使第2噴管與固定於其之鎖定管相對於第1噴管與其外周之導管沿長度方向滑動，並藉由該滑動而使操作桿伸縮。 In the liquid dispersing nozzle of the present invention, the second nozzle and the locking tube fixed thereto are slid in the longitudinal direction with respect to the first nozzle and the outer circumference thereof, and the operation lever is expanded and contracted by the sliding.

又，若使鎖定構件之可動卡止爪進入鎖定管之外周之卡止用凹 部，則操作桿之伸縮後之狀態被鎖定，若使可動卡止爪自上述卡止用凹部拔出，則該鎖定被解除，故而可簡單且準確地進行操作桿之長度調整，且亦穩定地保持長度調整後之狀態。 Moreover, if the movable locking claw of the locking member is inserted into the outer circumference of the locking tube In the portion, the state in which the operating lever is expanded and contracted is locked. When the movable locking claw is pulled out from the locking recess, the locking is released, so that the length of the operating lever can be easily and accurately adjusted and stabilized. The ground maintains the state after the length adjustment.

第2噴管與鎖定管自第1噴管與導管之間出沒而使操作桿之長度變化，因此與上文中揭示之專利文獻3所記載者相比，操作桿之長度縮短時之尺寸縮小之效果較高，操作性亦優異。 Since the length of the operating lever is changed between the first nozzle and the locking tube from the first nozzle and the catheter, the length of the operating rod is shortened as compared with the one described in Patent Document 3 disclosed above. The effect is high and the operability is excellent.

進而，切換液體之噴霧模式之閥之開閉不依賴於內管與外管之軸向相對移動而進行。具體而言，藉由上述管接頭之螺紋接管相對於套節之螺入量之調整而使上述閥之閥體相對於閥座接觸或分離，藉此，切換操作桿之內部之液體通路之連接狀態，故而亦確保液體之噴霧模式之切換功能。 Further, the opening and closing of the valve for switching the liquid spray mode is performed without depending on the relative movement of the inner tube and the outer tube in the axial direction. Specifically, the valve body of the valve is contacted or separated from the valve seat by adjusting the screwing amount of the pipe joint with respect to the screw joint, thereby switching the connection of the liquid passage inside the operating rod. The state, therefore, also ensures the switching function of the liquid spray mode.

再者，將第2噴管配置於操作桿之前側之構成係操作管之前端側不會變重，而使操作性較將第2噴管配置於操作桿之後側之構成優異。又，操作管之前端側不會變粗，外觀亦優異。 In addition, the configuration in which the second nozzle is disposed on the front side of the operation lever does not become heavy on the front end side of the operation tube, and the operability is superior to the configuration in which the second nozzle is disposed on the rear side of the operation rod. Moreover, the front end side of the operation tube does not become thick, and the appearance is also excellent.

又，將上述鎖定構件之解鎖桿設為進行蹺板運動之構造並分別於該解鎖桿之一端形成上述可動卡止爪且於另一端側形成桿操作部之構成係可用指尖按壓解鎖桿而利用所謂之單觸式操作解除鎖定，而使鎖定構件之操作性優異，亦容易謀求該鎖定構件之小型化。 Further, the unlocking lever of the lock member is configured to perform a seesaw motion, and the movable locking claw is formed at one end of the unlocking lever and the lever operating portion is formed on the other end side, and the unlocking lever can be pressed by the fingertip. The so-called one-touch operation is used to unlock the lock, and the lock member has excellent operability, and the lock member can be easily miniaturized.

此外，將活塞固定於鎖定管之端部且將該活塞液密地安裝於第2噴管端部、並利用該活塞將第1噴管與第2噴管之間密封之構成容易提高密封之可靠性。又，亦可以活塞作為約束構件而阻止第2噴管之活塞連接側端部之於徑向上之振動。 Further, the piston is fixed to the end portion of the lock pipe, and the piston is liquid-tightly attached to the end portion of the second nozzle, and the seal between the first nozzle and the second nozzle is easily sealed by the piston. reliability. Further, the piston may be used as a restraining member to prevent vibration in the radial direction of the piston connecting side end portion of the second nozzle.

再者，包含調整用螺紋接管並藉由上述螺紋接管相對於該調整用螺紋接管之螺入量之增減而使上述閥開閉之管接頭若為將上述螺紋接管單純地螺入上述調整用螺紋接管之構造，則有於未進行調整用螺紋接管之旋轉操作時調整用螺紋接管會因振動等自然旋轉而使噴霧模 式變化為意外狀態的顧慮，但於上述調整用螺紋接管與螺紋接管之間設置上述棘爪之構成將該顧慮亦消除。 Further, the pipe joint including the adjustment nipple and the screwing amount of the nipper with respect to the adjustment nipple is opened and closed by the nipper, and the nipper is simply screwed into the adjustment thread In the structure of the take-over, the adjusting nipple is naturally rotated by vibration or the like when the nipper is not rotated. The formula changes to an unexpected state, but the configuration in which the above-described pawl is provided between the adjustment nip and the nip is also eliminated.

即，藉由該棘爪之相對於齒槽之爪之卡合而增大上述調整用螺紋接管與螺紋接管之相對旋轉之阻力。藉此，阻止調整用螺紋接管之未進行旋轉操作時之旋轉，從而防止噴霧模式之非預期的變化。 That is, the resistance of the relative rotation of the adjusting nip and the nip is increased by the engagement of the pawl with respect to the claw of the slot. Thereby, the rotation of the adjustment nipple without the rotation operation is prevented, thereby preventing an unexpected change in the spray pattern.

1‧‧‧液體散布噴嘴 1‧‧‧Liquid Dispersion Nozzle

2‧‧‧操作桿 2‧‧‧Operator

2a‧‧‧第1噴管 2a‧‧‧1st nozzle

2b‧‧‧第2噴管 2b‧‧‧2nd nozzle

2c‧‧‧導管 2c‧‧‧ catheter

2d‧‧‧鎖定管 2d‧‧‧Locking tube

2e‧‧‧卡止用凹部 2e‧‧‧Card recess

2f‧‧‧鍵槽 2f‧‧‧ keyway

2g‧‧‧液體導入口 2g‧‧‧ liquid inlet

3‧‧‧噴霧頭 3‧‧‧ spray head

3a‧‧‧套管 3a‧‧‧ casing

3b‧‧‧芯部 3b‧‧‧core

3c‧‧‧噴出口 3c‧‧‧Spray outlet

3d‧‧‧噴板 3d‧‧‧spray

3e‧‧‧罩體 3e‧‧‧cover

4‧‧‧鎖定構件 4‧‧‧Locking members

4a‧‧‧本體部 4a‧‧‧ Body Department

4b‧‧‧桿***槽 4b‧‧‧ rod insertion slot

4c‧‧‧解鎖桿 4c‧‧‧ unlocking lever

4d‧‧‧彈簧 4d‧‧‧spring

4e‧‧‧支軸 4e‧‧‧ spindle

4f‧‧‧可動卡止爪 4f‧‧‧ movable card claws

4g‧‧‧桿操作部 4g‧‧‧ rod operation department

4h‧‧‧鍵 4h‧‧‧ key

4i‧‧‧蓋 4i‧‧‧ cover

4j‧‧‧連接件 4j‧‧‧Connecting parts

5‧‧‧管接頭 5‧‧‧ pipe joint

5a‧‧‧套節 5a‧‧‧section

5b‧‧‧螺紋接管 5b‧‧‧Threaded take over

5c‧‧‧調整用螺紋接管 5c‧‧‧Adjusting threaded adapter

5d‧‧‧鎖定環 5d‧‧‧Locking ring

6‧‧‧閥 6‧‧‧ valve

6a‧‧‧閥體 6a‧‧‧ valve body

6b‧‧‧閥座 6b‧‧‧ valve seat

7‧‧‧液體供給路 7‧‧‧Liquid supply road

8‧‧‧活塞 8‧‧‧Piston

9‧‧‧液體通路 9‧‧‧Liquid pathway

9a‧‧‧狹角噴霧通路 9a‧‧‧Narrow angle spray path

9b‧‧‧廣角噴霧通路 9b‧‧‧ wide-angle spray path

10‧‧‧連接用螺紋接管 10‧‧‧Connected threaded adapter

11‧‧‧握把 11‧‧‧ grip

12‧‧‧棘爪 12‧‧‧ pawl

12a‧‧‧內齒輪 12a‧‧‧Internal gear

12b‧‧‧彈性臂 12b‧‧‧Flexible arm

Ec‧‧‧爪 Ec‧‧‧ claw

Ts‧‧‧齒槽 Ts‧‧‧ cogging

圖1係表示本發明之液體散布噴嘴之一形態之局部省略剖視圖。 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a partially omitted cross-sectional view showing one embodiment of a liquid dispensing nozzle of the present invention.

圖2係表示將圖1之液體散布噴嘴之操作桿之長度縮短後之狀態之局部省略剖視圖。 Fig. 2 is a partially omitted cross-sectional view showing a state in which the length of the operating lever of the liquid dispensing nozzle of Fig. 1 is shortened.

圖3係圖1之液體散布噴嘴之主要部分之狹角噴霧狀態之放大剖視圖。 Figure 3 is an enlarged cross-sectional view showing the narrow-angle spray state of the main portion of the liquid dispensing nozzle of Figure 1.

圖4係圖1之液體散布噴嘴之前端部之廣角噴霧狀態之放大剖視圖。 Figure 4 is an enlarged cross-sectional view showing the wide-angle spray state of the front end portion of the liquid dispensing nozzle of Figure 1.

圖5係沿圖4之X-X線之放大剖視圖。 Figure 5 is an enlarged cross-sectional view taken along line X-X of Figure 4 .

圖6係沿圖3之Y-Y線之放大剖視圖。 Figure 6 is an enlarged cross-sectional view taken along line Y-Y of Figure 3.

圖7係設置於圖1之液體散布噴嘴之鎖定構件之分解立體圖。 Figure 7 is an exploded perspective view of the locking member of the liquid dispensing nozzle of Figure 1.

圖8係本發明之液體散布噴嘴之其他形態之主要部分之狹角噴霧狀態之放大剖視圖。 Fig. 8 is an enlarged cross-sectional view showing a narrow-angle spray state of a main portion of another embodiment of the liquid dispensing nozzle of the present invention.

圖9係圖8之液體散布噴嘴之前端部之廣角噴霧狀態之放大剖視圖。 Figure 9 is an enlarged cross-sectional view showing the wide-angle spray state of the front end portion of the liquid dispensing nozzle of Figure 8.

圖10係表示圖8之液體散布噴嘴所包含之管接頭之構成零件之一部分之立體圖。 Fig. 10 is a perspective view showing a part of the components of the pipe joint included in the liquid dispensing nozzle of Fig. 8.

圖11係表示圖10之管接頭之調整用螺紋接管與螺入其之螺紋接管之一部分之剖視圖。 Figure 11 is a cross-sectional view showing a portion of the adjusting nipple of the pipe joint of Figure 10 and a threaded pipe screwed therein.

圖12係沿圖8之Z-Z線之放大剖視圖。 Figure 12 is an enlarged cross-sectional view taken along line Z-Z of Figure 8.

以下，基於隨附圖式之圖1~圖12對本發明之液體散布噴嘴之實施形態進行說明。 Hereinafter, an embodiment of the liquid dispensing nozzle of the present invention will be described based on Figs. 1 to 12 of the accompanying drawings.

圖1及圖2所示之液體散布噴嘴1係將操作桿2、噴霧頭3、鎖定構件4、管接頭5及閥6進行組合而構成。 The liquid dispensing nozzle 1 shown in Figs. 1 and 2 is configured by combining the operating lever 2, the spray head 3, the lock member 4, the pipe joint 5, and the valve 6.

操作桿2係由第1噴管2a及導管2c、第2噴管2b、以及鎖定管2d構成，且於根部具有液體導入口2g，該第1噴管2a構成液體供給路7，該導管2c將一端固定於該第1噴管2a並同心地配置於第1噴管2a之外周，該第2噴管2b液密且軸向滑動自如地嵌於第1噴管2a之外周。 The operation lever 2 is composed of a first nozzle 2a, a duct 2c, a second nozzle 2b, and a lock tube 2d, and has a liquid introduction port 2g at a root portion thereof. The first nozzle 2a constitutes a liquid supply path 7, and the duct 2c One end is fixed to the first nozzle 2a and arranged concentrically on the outer circumference of the first nozzle 2a. The second nozzle 2b is fluid-tight and axially slidably fitted to the outer circumference of the first nozzle 2a.

於第2噴管2b之後端(***至第1噴管2a與導管2c之間之側之端部)液密地安裝有圓筒狀之活塞8，藉由將該活塞8液密且滑動自如地嵌於第1噴管2a之外周而進行第1噴管2a與第2噴管2b間之密封。 A cylindrical piston 8 is liquid-tightly attached to the rear end of the second nozzle 2b (the end portion inserted into the side between the first nozzle 2a and the duct 2c), and the piston 8 is liquid-tight and slidable. The seal between the first nozzle 2a and the second nozzle 2b is performed by being embedded in the outer circumference of the first nozzle 2a.

導管2c於圖示之構造中係後端固定於第1噴管2a，於該導管2c之自由端、即於圖示之構造中於前端，安裝有鎖定構件4。 The duct 2c is fixed to the first nozzle 2a at the rear end in the illustrated structure, and the lock member 4 is attached to the free end of the duct 2c, that is, at the front end in the illustrated structure.

鎖定管2d同心地配置於第2噴管2b之外周，且一端(於圖中其為前端)固定於第2噴管2b之一端附近。又，該鎖定管2d之固定活塞8之另一端(於圖中其為後端)側與第2噴管2b一起滑動自如地***至第1噴管2a與導管2c之間。 The lock pipe 2d is concentrically arranged on the outer circumference of the second nozzle 2b, and one end (the front end in the figure) is fixed to the vicinity of one end of the second nozzle 2b. Further, the other end (the rear end in the figure) of the fixed piston 8 of the lock pipe 2d is slidably inserted between the first nozzle 2a and the duct 2c together with the second nozzle 2b.

該鎖定管2d於外周具有圖1、圖2、圖5所示之卡止用凹部2e與沿管軸方向延伸之鍵槽2f。使該鎖定管2d沿長度方向滑動而自導管2c出沒，並使鎖定構件4卡止於相對於該鎖定管2d於管軸方向上以固定間距設置之卡止用凹部2e(參照圖1)，藉此可使操作桿2伸縮並階段性地調整該操作桿之長度。 The lock tube 2d has a locking recess 2e shown in Figs. 1, 2, and 5 and a key groove 2f extending in the tube axis direction on the outer circumference. The lock tube 2d is slid in the longitudinal direction and is detached from the duct 2c, and the lock member 4 is locked to the locking recess 2e (see FIG. 1) provided at a fixed pitch in the tube axis direction with respect to the lock tube 2d. Thereby, the operating lever 2 can be expanded and contracted and the length of the operating lever can be adjusted stepwise.

卡止用凹部2e可為沿徑向貫通鎖定管2d之凹部(由孔構成之凹部)與非貫通之有底之凹部之任一者。 The locking concave portion 2e may be any one of a concave portion (a concave portion formed by a hole) and a non-penetrating bottomed concave portion that penetrates the locking tube 2d in the radial direction.

如圖3詳細表示般，噴霧頭3係例示如下者：於套管3a之內部組入芯部3b，進而，於該芯部3b之前方配置具有噴出口3c之噴板3d，進 而，以罩體3e覆蓋外周。 As shown in detail in Fig. 3, the spray head 3 is exemplified by incorporating the core portion 3b inside the sleeve 3a, and further arranging the spray plate 3d having the discharge port 3c in front of the core portion 3b. However, the outer periphery is covered with the cover 3e.

於該噴霧頭3之內部，設置有被分支為2條之液體通路9。該液體通路9包含狹角噴霧通路(亦稱為直進噴射通路)9a與呈中心對稱地配置於該狹角噴霧通路之周圍之廣角噴霧通路9b(參照圖3、圖4)。 Inside the spray head 3, a liquid passage 9 branched into two is provided. The liquid passage 9 includes a narrow-angle spray passage (also referred to as a straight-injection passage) 9a and a wide-angle spray passage 9b (see FIGS. 3 and 4) disposed symmetrically around the narrow-angle spray passage.

廣角噴霧通路9b係藉由設置於芯部3b之外周之回旋用槽之動作而使通過該槽之液體回旋者，且亦被稱為回旋流產生通路。 The wide-angle spray passage 9b is a swirling flow generation passage that is caused by the operation of the swirling groove provided on the outer circumference of the core portion 3b to move the liquid passing through the groove.

此處所述之噴霧頭3之內部構成詳細記載於上文中揭示之專利文獻1中，因此省略此處之詳細說明。 The internal structure of the spray head 3 described herein is described in detail in Patent Document 1 disclosed above, and thus the detailed description herein is omitted.

再者，噴霧頭3亦可為如下構造：將具有噴出口之噴板如上文中揭示之專利文獻2所示般以串列配置設置2個，於該2個噴板間設置進氣孔，並將自該進氣孔吸入之氣體與液體混合後進行噴霧。 Further, the spray head 3 may have a configuration in which two spray plates having a discharge port are arranged in a line as shown in Patent Document 2 disclosed above, and an intake hole is provided between the two spray plates, and The gas sucked from the intake port is mixed with the liquid and sprayed.

如圖3、圖7詳細表示般，鎖定構件4係於被固定在導管2c之自由端之環狀之本體部4a設置桿***槽4b，並於該桿***槽4b設置有組入解鎖桿4c與將該解鎖桿4c向鎖定方向彈推之彈簧4d者。該鎖定構件4係使鍵4h卡合於設置在鎖定管2d之外周之鍵槽2f而相對於鎖定管2d止轉。 As shown in detail in FIGS. 3 and 7, the lock member 4 is provided with a rod insertion groove 4b in an annular body portion 4a fixed to the free end of the duct 2c, and a set-in unlocking lever 4c is provided in the rod insertion groove 4b. The spring 4d that pushes the unlocking lever 4c in the locking direction. The lock member 4 is configured such that the key 4h is engaged with the key groove 2f provided on the outer circumference of the lock tube 2d to be stopped relative to the lock tube 2d.

解鎖桿4c係設為以與操作管之軸心正交之方向之支軸4e為支點進行蹺板運動之桿，於該解鎖桿4c之一端設置有藉由彈簧4d之力而進入導管之凹部2e之可動卡止爪4f。可動卡止爪4f不限定於例示之形狀者。例如，亦可為銷狀者。 The unlocking lever 4c is a lever that performs a jaw movement with the support shaft 4e in a direction orthogonal to the axis of the operation tube as a fulcrum, and one end of the unlocking lever 4c is provided with a recess that enters the catheter by the force of the spring 4d. 2e movable locking claw 4f. The movable locking claw 4f is not limited to the shape illustrated. For example, it can also be a pin.

於解鎖桿4c之將支軸4e夾於中間之另一端側形成有桿操作部4g，並藉由用指尖將該桿操作部4g按下而解除操作桿2之長度調整後之位置之鎖定(可動卡止爪4f相對於凹部2e之卡止狀態)。 A lever operating portion 4g is formed on the other end side of the unlocking lever 4c with the support shaft 4e sandwiched therebetween, and the position of the operating lever 2 is released by pressing the lever operating portion 4g with a fingertip. (The locked state of the movable locking claw 4f with respect to the recessed portion 2e).

圖3、圖6、圖7之4h係設置於本體部4a之內周之鍵，藉由使該鍵4h如圖6所示般可動嵌合於鎖定管2d之外周之鍵槽2f而阻止鎖定構件4於導管2c之外周轉動。 4, 6 and 7 are the keys provided on the inner circumference of the main body portion 4a, and the key 4h is movably fitted to the key groove 2f of the outer circumference of the locking tube 2d as shown in Fig. 6, thereby preventing the locking member 4 from being locked. The duct 2c is rotated peripherally.

相對於凹部2e之可動卡止爪4f之卡止部位於例示之液體散布噴嘴中係設定為錯開180°位置之2個部位，但只要具有至少1個部位即可。 The locking portion of the movable locking claw 4f with respect to the concave portion 2e is located at two positions which are set to be shifted by 180° in the liquid dispensing nozzle as exemplified, but may have at least one portion.

圖3、圖7之4i係嵌於本體部4a之外周之蓋，藉由該蓋4a將被組入至桿***槽4b之解鎖桿4c之設置有可動卡止爪4f之一端側之外周遮蓋。該蓋4i雖為較佳之要素，但並非必需。 4i and 4i are the cover which is fitted to the outer periphery of the main body portion 4a, and the cover 4a is fitted to the unlocking rod 4c of the rod insertion groove 4b, and the outer side of the movable locking claw 4f is provided. . Although the cover 4i is a preferred element, it is not essential.

圖3、圖7之10係固定於導管2c之前端之連接用螺紋接管，4j係將鎖定構件4之本體部4a連結於連接用螺紋接管10之連接件。 10 and 7 are fastening nips that are fixed to the front end of the duct 2c, and 4j connects the main body 4a of the lock member 4 to the joint of the connecting nipple 10.

如圖3、圖4詳細表示般，管接頭5包含套節5a與螺入該套節之螺紋接管5b。套節5a連結於第2噴管2a之前端附近，螺紋接管5b連接於噴霧頭之套管3a之後端。 As shown in detail in Figures 3 and 4, the pipe joint 5 includes a sleeve 5a and a threaded joint 5b screwed into the sleeve. The ferrule 5a is coupled to the vicinity of the front end of the second nozzle 2a, and the nipple 5b is coupled to the rear end of the sleeve 3a of the spray head.

於該管接頭5包含有調整用螺紋接管5c。又，該管接頭5亦包含有鎖定環5d，該鎖定環5d卡止於調整用螺紋接管5c與套節5a之本體部而將該兩者可共同旋轉地連接，且將該兩者以於被施加有超過特定值之力時容許相對旋轉之方式連結。鎖定環5d於日本專利第4917190號公報中被詳細表示，因此省略此處之詳細說明。 The pipe joint 5 includes an adjusting nipple 5c. Moreover, the pipe joint 5 also includes a lock ring 5d that is locked to the main body of the adjusting nipple 5c and the hub 5a to connect the two together in a rotatable manner, and both When a force exceeding a certain value is applied, it is allowed to be coupled in such a manner as to allow relative rotation. The lock ring 5d is shown in detail in Japanese Patent No. 4917190, and thus the detailed description herein is omitted.

閥6係將閥體6a與閥座6b組合而成者，且閥體6a設置於第2噴管2b之前端。又，閥座6b設置於噴霧頭3之內部。 The valve 6 is a combination of the valve body 6a and the valve seat 6b, and the valve body 6a is provided at the front end of the second nozzle 2b. Further, the valve seat 6b is provided inside the spray head 3.

該閥6係藉由使閥體6a對閥座6b接觸或分離而切換液體供給路7相對於噴霧頭3內之狹角噴霧通路9a與廣角噴霧通路9b之連接狀態者，且藉由該切換而使來自噴霧頭3之液體之噴霧模式變化。 The valve 6 switches the connection state of the liquid supply path 7 with respect to the narrow-angle spray passage 9a and the wide-angle spray passage 9b in the spray head 3 by contacting or separating the valve body 6a against the valve seat 6b, and by the switching The spray pattern of the liquid from the spray head 3 is varied.

閥6之開閉調節係藉由使管接頭之螺紋接管5b相對於套節5a之螺入量(***量)變化而進行。 The opening and closing adjustment of the valve 6 is performed by changing the screwing amount (insertion amount) of the nipple 5b of the pipe joint with respect to the hub 5a.

若使螺紋接管5b之螺入量減少，則閥6之閥體6a自閥座6b離開而閥打開。此時，通過液體供給路7而供給之液體通過狹角噴霧通路9a而自噴霧頭3以直進狀態噴射。 When the screwing amount of the nipple 5b is reduced, the valve body 6a of the valve 6 is separated from the valve seat 6b and the valve is opened. At this time, the liquid supplied through the liquid supply path 7 is ejected from the spray head 3 in a straight-forward state through the narrow-angle spray passage 9a.

又，若使螺紋接管5b之螺入量增加，則閥6之閥體6a接觸閥座6b 而閥被關閉，通過液體供給路7而供給之液體流過廣角噴霧通路7b並自噴霧頭3呈大範圍擴散之狀態噴射。 Moreover, if the screwing amount of the nipple 5b is increased, the valve body 6a of the valve 6 contacts the valve seat 6b. On the other hand, the valve is closed, and the liquid supplied through the liquid supply path 7 flows through the wide-angle spray passage 7b and is ejected from the spray head 3 in a wide range.

例示之液體散布噴嘴1成為將液體之狹角(直進)噴霧與廣角噴霧之模式進行切換者，但本發明即便應用於藉由閥之開度調節而使液體之噴霧量變動之液體散布噴嘴亦發揮其有效性。此情形時之液體之噴霧量之變動於本發明中亦被認為是噴霧模式之切換。 The exemplified liquid dispensing nozzle 1 is configured to switch between a narrow-angle (straight-in) spray and a wide-angle spray of a liquid. However, the present invention is applied to a liquid dispensing nozzle that changes the spray amount of the liquid by adjusting the opening degree of the valve. Play to its effectiveness. The variation in the amount of spray of the liquid in this case is also considered to be the switching of the spray mode in the present invention.

圖1、圖2之11係設置於導管2c之外周之握把。若設置2個該握把11，則可用左右手確實地握住操作桿2而穩定地操作。 11 of Fig. 1 and Fig. 2 are grips provided on the outer circumference of the catheter 2c. If two grips 11 are provided, the operation lever 2 can be surely held by the left and right hands to operate stably.

圖3、圖4之5c係套節5a所包含之閥開度之調整用螺紋接管。將該調整用螺紋接管5c螺入套節5a，並將螺紋接管5b螺入設置於該調整用螺紋接管5c之螺孔而改變調整用螺紋接管5c之相對於套節5a之螺入量，藉此可對閥6之開閉量進行微調整。 Fig. 3 and Fig. 5c are the nipples for adjusting the valve opening degree included in the sleeve 5a. The adjusting nipple 5c is screwed into the sleeve 5a, and the threaded joint 5b is screwed into the screw hole provided in the adjusting nipple 5c to change the screwing amount of the adjusting threaded joint 5c with respect to the sleeve 5a. This allows fine adjustment of the amount of opening and closing of the valve 6.

關於如以上般所構成之例示之液體散布噴嘴1，若操作鎖定構件4之解鎖桿4c而將可動卡止爪4f自鎖定管之卡止用凹部2e拔出，則可使組合了第2噴管2b與鎖定管2d之操作桿2之前端側自組合了第1噴管2a與導管2c之操作桿2之後端側出沒而使操作桿2之長度階段性地變化。 In the liquid dispensing nozzle 1 exemplified as described above, when the unlocking lever 4c of the lock member 4 is operated and the movable locking claw 4f is pulled out from the locking recess 2e of the lock tube, the second spray can be combined. The tube 2b and the front end side of the operation lever 2 of the lock tube 2d are combined with the operation end of the operation lever 2 of the first nozzle 2a and the catheter 2c, and the length of the operation lever 2 is changed stepwise.

又，藉由使可動卡止爪4f進入鎖定管之卡止用凹部2e而使長度調整後之狀態亦被穩定地保持。 Moreover, the state in which the length is adjusted is stably maintained by the movable locking claw 4f entering the locking recess 2e of the lock tube.

由於在操作桿之長度縮短後，操作桿之前端側收納於後端側之內部，故而長度縮短時之尺寸縮小效果提高，操作亦變得容易。 Since the front end side of the operation lever is housed inside the rear end side after the length of the operation lever is shortened, the size reduction effect when the length is shortened is improved, and the operation becomes easy.

進而，將管接頭5設置於噴霧頭3與操作桿2之間，並藉由該管接頭之螺紋接管5b相對於套節5a之螺入量之增減而使閥之開度變化，從而使液體供給路7相對於噴霧頭3內之液體通路9之連接狀態變化，因此液體之噴霧模式之切換功能亦得以確保。 Further, the pipe joint 5 is disposed between the spray head 3 and the operating rod 2, and the opening degree of the valve is changed by the increase or decrease of the screwing amount of the threaded joint 5b of the pipe joint with respect to the sleeve 5a, thereby Since the connection state of the liquid supply path 7 with respect to the liquid passage 9 in the spray head 3 is changed, the switching function of the liquid spray mode is also ensured.

此外，成為於第2噴管2b之內側液密地***有第1噴管2a之狀態， 因此不存在於包含第2噴管2b與鎖定管2d之操作桿之前端側作用有因液壓產生之推進力之顧慮，亦不會對鎖定構件之可動卡止爪4f等施加無用之負擔。 In addition, the first nozzle 2a is inserted into the inside of the second nozzle 2b in a liquid-tight manner. Therefore, there is no concern that the thrust force due to the hydraulic pressure acts on the end side of the operation lever including the second nozzle 2b and the lock tube 2d, and no unnecessary load is applied to the movable locking claw 4f of the lock member.

圖6~圖12係表示本發明之液體散布噴嘴之更佳之形態(為方便起見稱為第2形態)之圖。該第2形態之液體散布噴嘴1係於上述調整用螺紋接管5c與螺紋接管5b之間追加設置了棘爪12者。除棘爪12以外之構成與上述之圖3之形態相同。 6 to 12 are views showing a more preferable form of the liquid dispensing nozzle of the present invention (referred to as a second form for convenience). In the liquid dispersion nozzle 1 of the second aspect, the pawl 12 is additionally provided between the adjustment nipple 5c and the nipple 5b. The configuration other than the pawl 12 is the same as that of the above-described FIG.

該第2形態係閥6之開閉量之微調整藉由利用超過特定值之力使調整用螺紋接管5c與套節5a之本體部相對旋轉而進行。 The fine adjustment of the opening and closing amount of the valve of the second embodiment is performed by relatively rotating the adjustment nipple 5c and the body portion of the hub 5a by a force exceeding a specific value.

如圖10~圖12詳細表示般，所例示之棘爪10係將具有沿軸向延伸之齒槽Ts之內齒輪12a、與於前端形成有進入齒槽Ts之爪Ec之彈性臂12b組合而成者，且分別將內齒輪12a設置於調整用螺紋接管5c、將彈性臂12b設置於螺紋接管5b之外周。 As shown in detail in FIGS. 10 to 12, the illustrated pawl 10 is a combination of an inner gear 12a having a tooth groove Ts extending in the axial direction and an elastic arm 12b having a claw Ec formed at the tip end into the tooth groove Ts. The inner gear 12a is placed on the adjustment nipple 5c and the elastic arm 12b is placed on the outer circumference of the nipple 5b.

若使調整用螺紋接管5c旋轉，則於調整用螺紋接管5c與螺紋接管5b之間產生相對旋轉。此時，進入齒槽Ts之爪Ec藉由作用於與齒槽之接觸點之分力沿而被朝向徑向內側按壓。 When the adjustment nipple 5c is rotated, relative rotation occurs between the adjustment nipple 5c and the nipple 5b. At this time, the claw Ec that has entered the tooth groove Ts is pressed toward the radially inner side by the component force edge acting on the contact point with the tooth groove.

爪Ec使圓周方向之兩端如圖所示般帶有弧度等而可不被卡住地自齒槽Ts拔出，受到上述分力之該爪Ec一面使彈性臂10b彎曲一面自齒槽Ts拔出。 The claw Ec has both ends in the circumferential direction as shown in the figure, and can be pulled out from the tooth groove Ts without being caught, and the claw Ec subjected to the above-described partial force is bent from the tooth groove Ts while bending the elastic arm 10b. Out.

該爪Ec於阻止調整用螺紋接管5c之旋轉之位置再次進入齒槽Ts，而提高相對旋轉之旋轉阻力。 The claw Ec re-enters the tooth groove Ts at a position where the rotation of the adjustment nipple 5c is prevented, and the rotational resistance of the relative rotation is increased.

藉此，阻止調整用螺紋接管5c之非操作時之旋轉而防止噴霧模式之非預期之變化。 Thereby, the rotation of the adjusting nipple 5c during the non-operation is prevented from preventing an unexpected change in the spray pattern.

又，藉由將內齒輪12a設為齒槽Ts沿軸向延伸之齒輪而容許調整用螺紋接管5c與螺紋接管5b之軸向相對移動，從而藉由調整用螺紋接管5c之旋轉操作及該調整用螺紋接管5c之旋轉而無障礙地產生螺紋接 管5b之螺入量之變化。 Further, by the internal gear 12a being a gear extending in the axial direction of the slot Ts, the axial movement of the adjustment nip 5c and the nip 5b is allowed to be performed, whereby the rotation operation of the adjustment nip 5c and the adjustment are performed. Threaded connection without any trouble with the rotation of the nipple 5c The change in the amount of screwing of the tube 5b.

棘爪12係一面容許調整用螺紋接管5c與螺紋接管5b之軸向相對移動一面使向右旋轉、向左旋轉之相對旋轉之阻力增大者，且設置之目的或構造與一般之棘爪不同。 The pawl 12 is configured to allow the adjustment of the relative rotation of the nipple 5c and the nipple 5b while rotating relative to the axial direction of the nipple 5c, and the relative rotation of the rotation to the left is increased, and the purpose or structure of the setting is different from that of the general pawl. .

再者，圖示之棘爪12係於圓周方向上以180°間距設置有2個彈性臂12b，但該彈性臂12b亦可為1個，亦可為2個以上。於設置2個以上之情形時，於圓周方向上以固定間距配置可保持相對旋轉之平衡而較佳。 Further, the illustrated pawl 12 is provided with two elastic arms 12b at a pitch of 180° in the circumferential direction. However, the elastic arms 12b may be one or two or more. When two or more cases are provided, it is preferable to arrange at a fixed pitch in the circumferential direction to maintain the balance of relative rotation.

本發明之液體散布噴嘴1即便設為於圖1中經由管接頭5將噴霧頭3連接於第1噴管2a之右端且於圖中左端側之外周設置握把10並將具有鎖定管2d之側形成為操作桿之後部之構造亦可達成發明之目的。 The liquid dispensing nozzle 1 of the present invention is connected to the right end of the first nozzle 2a via the pipe joint 5 in Fig. 1 and is provided with a grip 10 on the outer circumference of the left end side in the figure and has a locking tube 2d. The configuration in which the side is formed as the rear portion of the operating lever can also achieve the object of the invention.

然而，所圖示之構造之液體散布噴嘴之操作管之前端側不會變重，而操作性優異。又，操作管之前端側不會變粗，而外觀亦優異。 However, the front end side of the operation tube of the liquid dispersing nozzle of the illustrated configuration does not become heavy, and the operability is excellent. Moreover, the front end side of the operation tube does not become thick, and the appearance is excellent.

Claims (7)

一種液體散布噴嘴，其係於自操作桿(2)之根部之液體導入口(2g)至設置於上述操作桿(2)之前端之噴霧頭(3)之液體供給路(7)中設置閥(6)，並利用上述閥(6)切換上述液體供給路(7)對於上述噴霧頭(3)內之液體通路(9)之連接狀態而使來自上述噴霧頭(3)之液體之噴霧模式變化者，且將上述操作桿(2)以如下構件構成：第1噴管(2a)和導管(2c)，其中，上述第1噴管(2a)構成上述液體供給路(7)，上述導管(2c)將一端固定於上述第1噴管(2a)且同心地配置於上述第1噴管(2a)之外周；第2噴管(2b)，其液密且軸向滑動自如地嵌於上述第1噴管(2a)之外周；及鎖定管(2d)，其於外周具有於管軸方向上以固定間距排列之卡止用凹部(2e)與沿管軸方向延伸之鍵槽(2f)，同心地配置於上述第2噴管(2b)之外周，且一端固定於上述第2噴管(2b)之一端附近，另一端側與第2噴管(2b)一起滑動自如地***至上述第1噴管(2a)與上述導管(2c)之間；將上述操作桿(2)、安裝於上述導管(2c)之自由端側之端部之鎖定構件(4)、上述噴霧頭(3)、介置於上述噴霧頭(3)與上述操作桿(2)之間之具備套節(5a)及螺入上述套節(5a)之螺紋接管(5b)之管接頭(5)、及上述閥(6)進行組合；使上述鎖定構件(4)包含：可動卡止爪(4f)，其由彈簧(4d)彈推而進入上述鎖定管之外周之卡止用凹部(2e)；解鎖桿(4c)，其對上述可動卡止爪(4f)施加與上述彈簧(4d)之彈推方向為相反方向之力；及鍵(4h)，其可動嵌合於上述鍵槽(2f)；分別將上述管接頭之上述套節(5a)與上述螺紋接管(5b)之任一者連結於上述噴霧頭(3)、將另一者連結於連接上述噴霧頭(3)之 側之噴管，且分別將上述閥之閥體(6a)設置於連接上述噴霧頭(3)之側之噴管，將閥座(6b)設置於上述噴霧頭(3)。 A liquid dispersing nozzle is provided in a liquid supply port (7g) from a root portion of a operating rod (2) to a liquid supply path (7) of a spray head (3) disposed at a front end of the operating rod (2) (6), by using the valve (6) to switch the spray pattern of the liquid from the spray head (3) by switching the liquid supply path (7) to the liquid passage (9) in the spray head (3). In addition, the operation lever (2) is configured by a first nozzle (2a) and a duct (2c), wherein the first nozzle (2a) constitutes the liquid supply path (7), and the duct (2c) fixing one end to the first nozzle (2a) and concentrically disposed on the outer circumference of the first nozzle (2a); and the second nozzle (2b) is fluidly and axially slidably embedded in the first nozzle (2b) The outer circumference of the first nozzle (2a) and the locking tube (2d) have a locking recess (2e) arranged at a fixed pitch in the tube axis direction and a key groove (2f) extending in the tube axis direction on the outer circumference. Concentrically disposed on the outer circumference of the second nozzle (2b), one end is fixed to the vicinity of one end of the second nozzle (2b), and the other end side is slidably inserted into the second nozzle (2b) 1st Between the nozzle (2a) and the conduit (2c); the operating lever (2), the locking member (4) attached to the end of the free end of the conduit (2c), the spray head (3), a pipe joint (5) having a sleeve (5a) and a threaded joint (5b) screwed into the sleeve (5a) between the spray head (3) and the operating rod (2), and the valve (6) combining; the locking member (4) includes: a movable locking claw (4f) that is pushed by the spring (4d) into the locking recess (2e) of the outer circumference of the locking tube; the unlocking lever ( 4c), applying a force to the movable locking claw (4f) opposite to the spring pushing direction of the spring (4d); and a key (4h) movably fitted to the key groove (2f); One of the socket (5a) of the pipe joint and the nipple (5b) is connected to the spray head (3), and the other is connected to the spray head (3). The valve body (6a) of the valve is disposed on a nozzle connected to the side of the spray head (3), and a valve seat (6b) is provided to the spray head (3). 如請求項1之液體散布噴嘴，其中將上述第2噴管(2b)配置於上述操作桿(2)之前側，並將上述噴霧頭(3)連接於上述第2噴管(2b)之前端側。 The liquid dispensing nozzle according to claim 1, wherein the second nozzle (2b) is disposed on a front side of the operation lever (2), and the spray head (3) is connected to a front end of the second nozzle (2b) side. 如請求項1或2之液體散布噴嘴，其中將上述解鎖桿(4c)設為以與上述操作桿(2)之軸心正交之方向之支軸(4e)為支點進行蹺板運動之構造，並於上述解鎖桿(4c)之一端設置上述可動卡止爪(4f)，於將上述支軸(4e)夾於中間之另一端側形成桿操作部(4g)。 A liquid dispensing nozzle according to claim 1 or 2, wherein the unlocking lever (4c) is configured to perform a seesaw movement with a support shaft (4e) in a direction orthogonal to the axial center of the operating lever (2) as a fulcrum The movable locking claw (4f) is provided at one end of the unlocking lever (4c), and the lever operating portion (4g) is formed on the other end side of the intermediate shaft (4e). 如請求項1之液體散布噴嘴，其中將圓筒狀之活塞(8)固定於上述鎖定管(2d)之***至上述第1噴管(2a)與導管(2c)之間之側之端部，將上述活塞(8)液密地安裝於上述第2噴管(2b)之活塞設置側之端部，並將上述活塞(8)液密且滑動自如地嵌於上述第1噴管(2a)之外周而將上述第1噴管(2a)與上述第2噴管(2b)之間密封。 A liquid dispensing nozzle according to claim 1, wherein a cylindrical piston (8) is fixed to an end of the locking tube (2d) inserted to a side between the first nozzle (2a) and the conduit (2c) The piston (8) is liquid-tightly attached to the end portion of the second nozzle (2b) on the piston installation side, and the piston (8) is fluid-tightly and slidably fitted to the first nozzle (2a) The outer first tube (2a) and the second nozzle (2b) are sealed from each other. 如請求項1之液體散布噴嘴，其中於上述管接頭(5)包含將上述螺紋接管(5b)螺入內側之調整用螺紋接管(5c)，上述調整用螺紋接管(5c)可相對旋轉地連結於上述操作桿(2)，上述螺紋接管(5b)液密地連結於上述噴霧頭之套管(3a)，分別於液密地進入上述螺紋接管(5b)之內側之上述操作桿(2)之前端設置有上述閥之閥體(6a)、於上述噴霧頭(3)之內部設置有上述閥之閥座(6b)，並藉由上述螺紋接管(5b)相對於上述調整用螺紋接管(5c)之螺入量之增減而進行上述閥之開閉，而且，於上述調整用螺紋接管(5c)與上述螺紋接管(5b)之間，設置有容許該兩者之軸向相對移動並於爪(Ec)進入齒槽(Ts)之位置使兩者之相對旋轉之阻力增大之棘爪(12)。 The liquid dispensing nozzle of claim 1, wherein the pipe joint (5) includes an adjusting nipple (5c) for screwing the nipple (5b) into the inner side, and the adjusting nipple (5c) is relatively rotatablely coupled In the operation lever (2), the nipple (5b) is fluid-tightly coupled to the sleeve (3a) of the spray head, and the operation lever (2) which is liquid-tightly inserted into the inside of the nipple (5b) a valve body (6a) having the above-mentioned valve at the front end, a valve seat (6b) provided with the valve inside the spray head (3), and a nipple for the adjustment by the nipple (5b) The opening and closing of the valve is performed by increasing or decreasing the screwing amount of 5c), and between the adjusting nipple (5c) and the nipple (5b), the axial relative movement of the two is allowed to be The pawl (12) with the claw (Ec) entering the position of the tooth groove (Ts) to increase the resistance of the relative rotation of the two. 如請求項5之液體散布噴嘴，其中上述棘爪(12)係分別使上述調 整用螺紋接管(5c)包含具有沿軸向延伸之齒槽(Ts)之內齒輪(12a)、使上述螺紋接管(5b)包含於前端具備進入上述齒槽之爪(Ec)之彈性臂(12b)，並於上述爪(Ec)進入上述齒槽(Ts)而卡止之位置提高上述調整用螺紋接管(5c)與上述螺紋接管(5b)之相對旋轉之阻力。 The liquid dispensing nozzle of claim 5, wherein the above-mentioned pawl (12) respectively makes the above adjustment The splicing nipple (5c) includes an internal gear (12a) having a tooth groove (Ts) extending in the axial direction, and the nipple (5b) is included in the elastic arm of the claw (Ec) having a leading end into the gullet ( 12b), the resistance of the relative rotation of the adjusting nipple (5c) and the nipple (5b) is increased at a position where the claw (Ec) enters the tooth groove (Ts) and is locked. 如請求項5或6之液體散布噴嘴，其中上述調整用螺紋接管(5c)包含鎖定環(5d)，該鎖定環(5d)將上述套節(5a)可旋轉且不可軸向移動地安裝於上述操作桿(2)並螺入上述套節(5a)，並於任意之螺入位置使上述調整用螺紋接管(5c)與上述套節(5a)之相對旋轉之阻力較上述調整用螺紋接管(5c)與上述螺紋接管(5b)之相對旋轉之阻力更為增大。 A liquid dispensing nozzle according to claim 5 or 6, wherein said adjusting nipple (5c) comprises a locking ring (5d), said locking ring (5d) being rotatably and non-axially movable to said sleeve (5a) The operating lever (2) is screwed into the sleeve (5a), and the resistance of the adjusting nipple (5c) to the relative rotation of the sleeve (5a) is higher than the adjusting threaded socket at any screwing position. (5c) The resistance to the relative rotation of the above-mentioned nipple (5b) is further increased.