WO2017049820A1 - 一种虹吸式喷笔 - Google Patents

一种虹吸式喷笔 Download PDF

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Publication number
WO2017049820A1
WO2017049820A1 PCT/CN2016/071343 CN2016071343W WO2017049820A1 WO 2017049820 A1 WO2017049820 A1 WO 2017049820A1 CN 2016071343 W CN2016071343 W CN 2016071343W WO 2017049820 A1 WO2017049820 A1 WO 2017049820A1
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WO
WIPO (PCT)
Prior art keywords
nozzle
needle
trigger
handle
valve
Prior art date
Application number
PCT/CN2016/071343
Other languages
English (en)
French (fr)
Inventor
张明贵
Original Assignee
张明贵
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 张明贵 filed Critical 张明贵
Priority to US15/318,669 priority Critical patent/US10130963B2/en
Priority to EP16805710.7A priority patent/EP3170565B1/en
Publication of WO2017049820A1 publication Critical patent/WO2017049820A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2435—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle the carried liquid and the main stream of atomising fluid being brought together by parallel conduits placed one inside the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/063—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet one fluid being sucked by the other
    • B05B7/064—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet one fluid being sucked by the other the liquid being sucked by the gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1209—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means for each liquid or other fluent material being manual and interdependent
    • B05B7/1218—With means for adjusting or modifying the action of the controlling means

Definitions

  • the utility model relates to the technical field of airbrushes, in particular to a siphon type airbrush.
  • the airbrush is an important painting tool that can spray the paint in a mist to achieve uniform coloring. It is widely used in decorative design, outdoor advertising, publishing and film animation.
  • the common airbrushes on the market are mainly divided into two types: gravity type and siphon type.
  • the principle of the siphon type airbrush is to use compressed air to form a negative pressure at the nozzle so that the paint in the paint bottle is sucked into the nozzle and ejected.
  • the nozzle is usually directly mounted on the front end of the front handle by means of the nozzle.
  • the installation structure of the front handle is relatively complicated, which makes the processing difficult, especially difficult.
  • the gas passage inside the front handle is processed, resulting in high manufacturing cost.
  • the nozzle is only connected to the front handle through the nozzle, and the position stability of the nozzle after installation is difficult to ensure, resulting in coaxiality between the nozzle and the nozzle. The lower degree affects the normal use of the airbrush.
  • the purpose of the utility model is to provide a siphon type airbrush with simple and reasonable structure, convenient processing, low manufacturing cost, high stability and convenient use in view of the defects and deficiencies of the prior art.
  • the utility model relates to a siphon type airbrush, which comprises a front handle, a tail handle, a spray needle, a spray head and a spray a nozzle and an intake valve, the front handle and the tail handle are coupled to form a pen body, the inside of the pen body is formed with a receiving cavity, the receiving cavity is provided with the spray needle, and the front handle a feeding joint is disposed on the wall, a siphon channel communicating with the feeding joint is disposed in the front handle, and the inlet valve is disposed in a middle portion of the pen body, and the receiving cavity is provided therein a trigger for controlling the opening and closing of the intake valve, a trigger end of the trigger protrudes from an outer portion of the front handle, the trigger cooperates with the spray needle, and further includes a nozzle seat, a rear end of the nozzle seat Threaded with the front shank, the front end of the nozzle holder is screwed to the nozzle, the nozzle includes a nozzle body, and the nozzle body abuts between
  • a sealing ring is disposed between the front handle and the nozzle holder, between the nozzle holder and the nozzle, and between the nozzle holder and the nozzle body.
  • a ejector is further disposed in the accommodating cavity, and a front end of the ejector is axially provided with a slot for inserting the needle, and a rear end of the ejector protrudes from the shank a button is fixedly connected to the outside of the needle, and a locking nut is engaged with the front end stop of the ejector pin, and a shank screw is disposed between the ejector pin and the shank.
  • a shank screw is threadedly connected to the tail shank, and a locking sleeve is movably connected between the shank screw and the button; a pair of mounting holes are symmetrically arranged on the wall of the shank screw, and the mounting hole is
  • the movable body is provided with steel balls, and the outer periphery of the rear end of the ejector is provided with a first step portion and a second step portion which are matched with the steel ball from the front to the rear, and the diameter of the first step portion is larger than the second portion
  • the diameter of the step portion, the inner wall of the locking sleeve is provided in order from front to back
  • the steel ball is matched with an annular deep groove and an annular shallow groove, the annular deep groove is continuous with the annular shallow groove, and a middle portion of the locking sleeve is provided with a rear end of the tail screw
  • a stop boss of the stop fit, and a button spring is disposed between the limit boss and the button.
  • the front handle and the tail handle are connected by a connecting screw, and an outer portion of the needle is respectively sleeved with an adjusting rod and a spring adjusting screw, and the adjusting rod is disposed between the adjusting rod and the spring adjusting screw
  • An adjustment rod spring having a rear end of the adjustment rod passing through the spring adjustment screw and being screwed with the lock nut; a rear end of the adjustment rod is axially provided with a clamping groove when the locking When the nut is screwed to the adjusting rod, the rear end of the adjusting rod is contracted by the clamping groove and clamps the needle; the spring adjusting screw is screwed with the connecting screw.
  • the trigger is provided with a linkage block for driving the axial movement of the needle
  • the linkage block has an eccentric arc structure, and an outer circumference of the linkage block abuts the adjustment rod, and the adjustment rod is The front end extends with a connecting portion, and an end of the linking block remote from the trigger is movably sleeved to the connecting portion.
  • a gap is formed at a position corresponding to the spring adjusting screw of the tail shank.
  • the intake valve includes a valve body, one end of the valve body is fixedly connected to the front handle, the other end of the valve body is provided with an air inlet joint, and the valve body is provided with the air outlet.
  • a valve stem and a switch hole are respectively disposed in the air inlet joint, and one end of the valve rod sequentially passes through the switch hole, the valve body and is opposite to the trigger, and the other end of the valve stem is provided with
  • the switch hole is sealed with a sealing seat, and a valve stem adjusting screw is further disposed in the air inlet joint, and an intake valve is disposed between the valve stem adjusting screw and an end of the valve stem adjacent to the sealing seat spring.
  • a tapered sealing ring and a sealing ring pressing cap are disposed in the accommodating cavity from front to back, and the sealing ring pressing cap and the tapered sealing ring are disposed on the nozzle seat and the trigger
  • the sealing ring pressure cap is screwed to the front shank, and the tapered sealing ring abuts against the front shank and the Seal between the caps.
  • the external connection of the nozzle is provided with a nozzle sleeve.
  • the utility model has the beneficial effects that the utility model is screwed to the nozzle seat at the front end of the front handle, and the nozzle head and the nozzle are fixed and fixed by the nozzle seat, compared with the prior art, the front handle is directly installed through the nozzle nozzle, the utility is practical.
  • the new type effectively optimizes the connection structure of the front handle, so that the structure of the front handle is simpler, and the gas passage inside the front handle is more convenient to process, the processing is convenient, and the manufacturing cost is reduced; in addition, the nozzle body is disposed on the nozzle and the nozzle Between the nozzle holders, the nozzle is more convenient and quicker in assembly, and the stability of the nozzle position state is effectively improved, which is beneficial to fully ensure the coaxiality between the nozzle tip and the nozzle, and improves the use effect of the utility model. .
  • Figure 1 is a schematic view of the overall structure of the present invention
  • Figure 3 is a partial structural view of the utility model in another locked state
  • FIG. 4 is a schematic structural view of a jack of the present invention.
  • Figure 5 is a schematic structural view of the locking sleeve of the present invention.
  • Figure 6 is a schematic view showing the structure of the adjusting rod of the present invention.
  • a siphon type airbrush includes a front handle 1, a tail handle 2, a spray needle 3, a spray head 4, a nozzle and an intake valve, and the front handle 1 and the tail handle 2 are coupled to form a pen body.
  • the inside of the pen body is formed with a receiving cavity 7 , and the receiving cavity 7 is provided with a spray needle 3 .
  • the wall of the front handle 1 is provided with a feeding joint 11 , and the feeding joint 11 is used for connecting the paint bottle, and the front handle 1 is
  • the siphon channel 12 is connected to the feed joint 11 , and the middle portion of the pen body is provided with an intake valve.
  • the accommodating chamber 7 is provided with a trigger 71 for controlling the opening and closing of the intake valve. The trigger end of the trigger 71 protrudes from the front. On the outside of the handle 1, the trigger 71 cooperates with the needle 3.
  • the utility model further comprises a nozzle holder 8, the rear end of the nozzle holder 8 is screwed with the front handle 1, the front end of the nozzle holder 8 is screwed with the nozzle 4, and the outer joint of the nozzle 4 is provided with a nozzle sleeve 41, and the nozzle sleeve 41 is used for protection.
  • the nozzle 3 includes a nozzle body 51.
  • the nozzle body 51 is disposed between the nozzle 4 and the nozzle holder 8.
  • the nozzle body 52 has a nozzle tip 52 extending from the front end thereof.
  • the nozzle holder 8 is provided with a shaft through hole 81 at the center thereof.
  • the passage 12 communicates with the shaft through hole 81.
  • the front end of the needle 3 passes through the shaft through hole 81 and the nozzle body 51 and protrudes into the nozzle tip 52.
  • a gas chamber is formed between the nozzle 4, the nozzle body 51 and the nozzle tip 52.
  • A, the front handle 1, the nozzle holder 8 and the nozzle body 51 are cooperatively formed with a gas passage 82 that communicates the air outlet 63 of the intake valve with the air chamber A.
  • a gas chamber is formed between the front end of the nozzle 4 and the nozzle tip 52. A radial gap in communication with the atmosphere.
  • the utility model is screwed to the nozzle holder 8 at the front end of the front handle 1, and the nozzle holder 8 and the nozzle are fixed and fixed by the nozzle holder 8.
  • the front handle 1 is directly mounted through the nozzle 4,
  • the utility model effectively optimizes the connection structure of the front handle 1, so that the structure of the front handle 1 is more simple, and the gas passage 82 inside the front handle 1 is more convenient to be processed, the processing is convenient, and the manufacturing cost is reduced;
  • the 51 is disposed between the nozzle 4 and the nozzle holder 8, which makes the nozzle more convenient and quicker in assembly, and also effectively improves the stability of the nozzle position state, and is beneficial for fully ensuring the coaxiality between the nozzle tip 52 and the nozzle 4. Degree, the use effect of the utility model is improved.
  • the compressed air enters the air chamber A through the intake valve and the gas passage 82 in sequence, and is ejected outward from the radial gap between the front end of the nozzle 4 and the nozzle tip 52, and the process of ejecting gas from the nozzle 4 is performed.
  • the compressed air near the front end of the head 4 forms a negative pressure at the position of the nozzle tip 52, thereby sucking the paint in the siphon channel 12 from the nozzle, and the paint is ejected through the nozzle tip 52 while being ejected from the front end of the head 4.
  • the compressed air is atomized to achieve the effect of atomized spraying.
  • a sealing ring 83 is disposed between the front handle 1 and the nozzle holder 8, between the nozzle holder 8 and the nozzle 4, and between the nozzle holder 8 and the nozzle body 51.
  • a ejector rod 9 is further disposed in the accommodating chamber 7, and a front end of the ejector rod 9 is provided with a slot 91 for inserting the needle 3 in the axial direction.
  • the rear end of the tail 9 protrudes from the outside of the shank 2 and is fixedly connected with a button 10, and the needle 3 is fixedly connected with a lock nut 31 engaged with the front end stop of the ejector pin 9, between the ejector pin 9 and the stalk 2
  • the sleeve is provided with a shank screw 111, the shank screw 111 is screwed to the shank 2, and the locking sleeve 121 is movably connected between the shank screw 111 and the button 10; a pair of mounting holes are symmetrically arranged on the wall of the shank screw 111.
  • the inside of the mounting hole is provided with a steel ball 112.
  • the outer periphery of the rear end of the ejector pin 9 is provided with a first step portion 92 and a second step portion 93 which are matched with the steel ball 112 in order from the front to the rear.
  • the diameter of the first step portion 92 is larger than that of the first step portion 92.
  • the diameter of the two step portions 93, the inner wall of the locking sleeve 121 is provided with an annular deep groove 122 and an annular shallow groove 123 which cooperate with the steel ball 112 from the front to the rear, and the annular deep groove 122 and The annular shallow groove 123 is penetrated, and the central portion of the locking sleeve 121 is provided with a limiting boss 124 that cooperates with the rear end stop of the shank screw 111.
  • a button spring 101 is disposed between the limiting boss 124 and the button 10.
  • the position of the shank screw 111 is adjusted according to actual needs.
  • the ejector 9 is pushed forward only by the button 10, and the ejector 9 is moved with the steel ball 112 during the movement. Relative sliding occurs.
  • the ejector pin 9 cannot be moved backward by itself, thereby realizing the locking of the position of the ejector pin 9
  • the axial gap between the front end of the jack 9 and the lock nut 31 is the ultimate displacement of the needle 3; when it is necessary to completely open the nozzle during use, it is only necessary to pull the lock sleeve 121 backward.
  • the annular shallow groove 123 gradually disengages from the steel ball 112.
  • the position of the shank screw 111 is adjusted by the utility model, and the cooperation function of the locking sleeve 121, the button 10, the ejector rod 9 and the steel ball 112 can effectively realize the ejector rod 9 at two different positions. Locking, and thus changing the limit state of the needle 3, the operation is convenient, and the use effect is good.
  • the front handle 1 and the tail shank 2 are connected by a connecting screw 21, and the outer portion of the needle 3 is respectively sleeved with an adjusting rod 32 and a spring adjusting screw 33, and an adjusting rod is arranged between the adjusting rod 32 and the spring adjusting screw 33.
  • a spring 34 the rear end of the adjusting rod 32 passes through the spring adjusting screw 33 and is screwed with the lock nut 31; the rear end of the adjusting rod 32 is axially provided with a clamping groove 321 when the lock nut 31 and the adjusting rod 32 are threaded
  • the rear end of the adjusting rod 32 is contracted by the clamping groove 321 and clamps the needle 3; the spring adjusting screw 33 is screwed to the connecting screw 21.
  • the trigger 71 is provided with a linkage block 711 for driving the axial movement of the needle 3.
  • the linkage block 711 has an eccentric arc structure.
  • the outer circumference of the linkage block 711 abuts against the adjustment rod 32.
  • the front end of the adjustment rod 32 extends with a connecting portion 322.
  • One end of the block 711 remote from the trigger 71 is slidably coupled to the connecting portion 322.
  • a notch 22 is provided at a position corresponding to the spring adjusting screw 33 of the stalk 2 .
  • the linkage block 711 rotates synchronously with the trigger 71, and pushes the adjustment lever 32 backward through the outer circumference thereof, and the adjustment lever 32 is subjected to the axial force of the linkage block 711, thereby driving the needle 3 and locking.
  • the nut 31 moves rearwardly, and the needle 3 forms a gap with the nozzle tip 52 during the backward movement, causing the paint to flow out through the nozzle tip 52.
  • the distance moved by the needle 3 also changes accordingly, and the gap between the needle 3 and the nozzle tip 52 also changes, thereby changing the displacement of the present invention.
  • the adjustment lever 32 drives the needle 3 and the lock nut 31 to be reset by the adjustment of the lever spring 34.
  • the user can directly adjust the thread access amount between the spring adjusting screw 33 and the connecting screw 21 through the notch 22 reserved on the shank 2, thereby adjusting the preloading pressure of the adjusting lever spring 34. There is no need to remove the tail handle 2, which effectively reduces the number of disassembly and assembly, and is more convenient to use.
  • the intake valve includes a valve body 61.
  • One end of the valve body 61 is fixedly connected to the front handle 1.
  • the other end of the valve body 61 is provided with an air inlet connector 62.
  • the valve body 61 is provided with an air outlet 63.
  • the valve stem 64 and the switch hole 65, one end of the valve stem 64 passes through the switch hole 65 and the valve body 61 in sequence and abuts against the trigger 71.
  • the other end of the valve stem 64 is provided with a sealing seat 66 sealingly engaged with the switch hole 65.
  • a valve stem adjusting screw 67 is also disposed in the joint 62, between the valve stem adjusting screw 67 and the end of the valve stem 64 adjacent to the sealing seat 66.
  • An intake valve spring 68 is provided.
  • the air inlet 62 is connected to the air source.
  • the end of the trigger 71 pushes against the valve stem 64, causing the sealing seat 66 to disengage from the switch hole 65, so that the compressed gas in the air source passes through the switch hole 65.
  • the gas outlet 63 and the gas passage 82 enter the gas chamber A, and then flow through the gap between the front end of the head 4 and the nozzle tip 52 to be ejected from the front end of the head 4.
  • the valve stem 64 is driven by the intake valve spring 68 to trigger the trigger 71 to be reset.
  • the preloading pressure of the intake valve spring 68 can be adjusted.
  • the receiving cavity 7 is provided with a tapered sealing ring 72 and a sealing ring pressing cap 73 from the front to the rear, and the sealing ring pressing cap 73 and the tapered sealing ring 72 are both disposed on the nozzle seat.
  • the sealing ring pressure cap 73 is screwed to the front shank 1
  • the conical sealing ring 72 is disposed between the front shank 1 and the sealing ring pressing cap 73.

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  • Nozzles (AREA)

Abstract

一种虹吸式喷笔，包括前柄（1）、尾柄（2）、喷针（3）、喷头（4）、喷嘴、进气阀及喷嘴座（8）。前柄（1）与尾柄（2）配合连接形成笔体。笔体内部形成有容置腔（7）。容置腔（7）中设有喷针（3）。前柄内设有虹吸通道（12）。笔体的中部设有进气阀。喷嘴座（8）的后端与前柄螺纹连接，喷嘴座（8）的前端与喷头（4）螺纹连接。喷嘴包括喷嘴本体（51），喷嘴本体（51）抵接于喷头与喷嘴座之间。喷嘴本体（51）的前端延伸设有喷嘴尖端（52）。喷嘴座的中心设置有轴通孔（81），虹吸通道（12）与轴通孔（81）相连通。喷针（3）的前端穿过轴向通孔（81）、喷嘴本体（51）且伸入喷嘴尖端（52）内。这种虹吸式喷笔结构简单、便于加工、稳定性高。

Description

一种虹吸式喷笔 技术领域
本实用新型涉及喷笔技术领域，特别涉及一种虹吸式喷笔。
背景技术
喷笔是能令涂料呈雾状喷出以达到均匀上色目的的重要涂装工具，在装潢设计、户外广告、出版印刷以及电影动画等领域应用较为广泛。目前市面上常见的喷笔，按涂料输送方式的不同，主要分为重力式和虹吸式两种。虹吸式喷笔的原理是利用压缩空气在喷嘴处形成负压，使涂料瓶中的涂料被吸入至喷嘴并喷出。现有的虹吸式喷笔，其喷嘴通常是借助喷头直接安装在前柄的前端，然而，采用这种安装结构会造成前柄的结构设置相对较为复杂，使得加工难度较大，尤其是难以对前柄内部的气体通道进行加工，导致制造成本较高；另外，喷嘴仅通过喷头与前柄相连接，也使得喷嘴在安装后，其位置稳定性难以保证，导致喷嘴与喷头之间的同轴度较低，影响喷笔的正常使用。
实用新型内容
本实用新型的目的在于针对现有技术的缺陷和不足，提供一种结构简单合理、便于加工、制造成本较低、稳定性较高、使用方便的虹吸式喷笔。
为实现上述目的，本实用新型采用以下技术方案：
本实用新型所述的一种虹吸式喷笔，包括前柄、尾柄、喷针、喷头、喷 嘴及进气阀，所述前柄与所述尾柄配合连接形成笔体，所述笔体的内部形成有容置腔，所述容置腔内设有所述喷针，所述前柄的壁上设有进料接头，所述前柄内设有与所述进料接头连通的虹吸通道，所述笔体的中部设有所述进气阀，所述容置腔内设有用于控制所述进气阀启闭的扳机，所述扳机的触发端伸出于所述前柄的外部，所述扳机与所述喷针联动配合，还包括喷嘴座，所述喷嘴座的后端与所述前柄螺纹连接，所述喷嘴座的前端与所述喷头螺纹连接，所述喷嘴包括喷嘴本体，所述喷嘴本体抵设于所述喷头与所述喷嘴座之间，所述喷嘴本体的前端延伸设有喷嘴尖端，所述喷嘴座的中心设置有轴通孔，所述虹吸通道与所述轴通孔相连通，所述喷针的前端穿过所述轴通孔、所述喷嘴本体并伸入于所述喷嘴尖端内；所述喷头、所述喷嘴本体及所述喷嘴尖端之间形成有气室，所述前柄、所述喷嘴座及所述喷嘴本体配合形成有将所述进气阀的出气口与所述气室相连通的气体通道，所述喷头的前端与所述喷嘴尖端之间形成有将所述气室与大气连通的径向间隙。
进一步地，所述前柄与所述喷嘴座之间、所述喷嘴座与所述喷头之间、所述喷嘴座与所述喷嘴本体之间分别设置有密封圈。
进一步地，所述容置腔内还设有顶杆，所述顶杆的前端沿轴向设有供所述喷针***的插槽，所述顶杆的后端伸出于所述尾柄的外部并固定连接有按钮，所述喷针上固定连接有与所述顶杆的前端止挡配合的锁紧螺母，所述顶杆与所述尾柄之间套设有尾柄螺丝，所述尾柄螺丝与所述尾柄螺纹连接，所述尾柄螺丝与所述按钮之间活动连接有锁紧套；所述尾柄螺丝的壁上对称设有一对安装孔，所述安装孔内活动装设有钢珠，所述顶杆的后端外周从前至后依次设有与所述钢珠相配合的第一台阶部和第二台阶部，所述第一台阶部的直径大于所述第二台阶部的直径，所述锁紧套的内壁从前至后依次设有与 所述钢珠相配合的环状深槽和环状浅槽，所述环状深槽与所述环状浅槽相贯通，所述锁紧套的中部设有与所述尾柄螺丝的后端止挡配合的限位凸台，所述限位凸台与所述按钮之间设有按钮弹簧。
进一步地，所述前柄与所述尾柄之间通过连接螺丝相连接，所述喷针的外部分别套设有调节杆和弹簧调节螺丝，所述调节杆与所述弹簧调节螺丝之间设有调节杆弹簧，所述调节杆的后端穿过所述弹簧调节螺丝并与所述锁紧螺母螺纹连接；所述调节杆的后端沿轴向设有夹紧槽，当所述锁紧螺母与所述调节杆螺纹连接时，所述调节杆的后端在所述夹紧槽的作用下受力收缩并夹紧所述喷针；所述弹簧调节螺丝与所述连接螺丝螺纹连接。
进一步地，所述扳机上设置有用于驱动所述喷针轴向移动的联动块，所述联动块呈偏心圆弧结构，所述联动块的外周与所述调节杆相抵，所述调节杆的前端延伸有连接部，所述联动块的远离所述扳机的一端活动套接于所述连接部。
进一步地，所述尾柄的与所述弹簧调节螺丝相对应位置处设有缺口。
进一步地，所述进气阀包括阀体，所述阀体的一端与所述前柄固定连接，所述阀体的另一端设有进气接头，所述阀体设有所述出气口，所述进气接头内分别设有阀杆和开关孔，所述阀杆的一端依次穿过所述开关孔、所述阀体并与所述扳机相抵，所述阀杆的另一端设有与所述开关孔密封配合的密封座，所述进气接头内还设有阀杆调节螺丝，所述阀杆调节螺丝与所述阀杆的邻近所述密封座的一端之间设有进气阀弹簧。
进一步地，所述容置腔内从前至后依次设有锥形密封圈和密封圈压帽，所述密封圈压帽及所述锥形密封圈均设置于所述喷嘴座与所述扳机之间，所述密封圈压帽与所述前柄螺纹连接，所述锥形密封圈抵设于所述前柄与所述 密封圈压帽之间。
进一步地，所述喷头的外部连接设有喷头套。
本实用新型的有益效果为：本实用新型在前柄的前端螺纹连接喷嘴座，通过喷嘴座实现对喷头及喷嘴的安装固定，与现有技术中前柄直接通过喷头安装喷嘴相比，本实用新型有效优化了前柄的连接结构，使得前柄的结构设置更为简单，并且更加便于对前柄内部的气体通道进行加工，加工方便，降低了制造成本；此外，喷嘴本体抵设于喷头与喷嘴座之间，既使得喷嘴在装配时较为方便快捷，同时也有效提高了喷嘴位置状态的稳定性，有利于充分保证喷嘴尖端与喷头之间的同轴度，提高了本实用新型的使用效果。
附图说明
图1是本实用新型的整体结构示意图；
图2是本实用新型在一种锁定状态下的局部结构示意图；
图3是本实用新型在另一种锁定状态下的局部结构示意图；
图4是本实用新型的顶杆的结构示意图；
图5是本实用新型的锁紧套的结构示意图；
图6是本实用新型的调节杆的结构示意图。
图1至图6中：
1、前柄；11、进料接头；12、虹吸通道；2、尾柄；21、连接螺丝；22、缺口；3、喷针；31、锁紧螺母；32、调节杆；321、夹紧槽；322、连接部；33、弹簧调节螺丝；34、调节杆弹簧；4、喷头；41、喷头套；51、喷嘴本体；52、喷嘴尖端；61、阀体；62、进气接头；63、出气口；64、阀杆；65、开关孔；66、密封座；67、阀杆调节螺丝；68、进气阀弹簧；7、容置腔；71、 扳机；711、联动块；72、锥形密封圈；73、密封圈压帽；8、喷嘴座；81、轴通孔；82、气体通道；83、密封圈；9、顶杆；91、插槽；92、第一台阶部；93、第二台阶部；10、按钮；101、按钮弹簧；111、尾柄螺丝；112、钢珠；121、锁紧套；122、环状深槽；123、环状浅槽；124、限位凸台；A、气室。
具体实施方式
下面结合附图对本实用新型作进一步的说明。
如图1至图6所示的一种虹吸式喷笔，包括前柄1、尾柄2、喷针3、喷头4、喷嘴及进气阀，前柄1与尾柄2配合连接形成笔体，笔体的内部形成有容置腔7，容置腔7内设有喷针3，前柄1的壁上设有进料接头11，进料接头11用于连接涂料瓶，前柄1内设有与进料接头11连通的虹吸通道12，笔体的中部设有进气阀，容置腔7内设有用于控制进气阀启闭的扳机71，扳机71的触发端伸出于前柄1的外部，扳机71与喷针3联动配合。
本实用新型还包括喷嘴座8，喷嘴座8的后端与前柄1螺纹连接，喷嘴座8的前端与喷头4螺纹连接，喷头4的外部连接设有喷头套41，喷头套41用于保护喷针3，喷嘴包括喷嘴本体51，喷嘴本体51抵设于喷头4与喷嘴座8之间，喷嘴本体51的前端延伸设有喷嘴尖端52，喷嘴座8的中心设置有轴通孔81，虹吸通道12与轴通孔81相连通，喷针3的前端穿过轴通孔81、喷嘴本体51并伸入于喷嘴尖端52内；喷头4、喷嘴本体51及喷嘴尖端52之间形成有气室A，前柄1、喷嘴座8及喷嘴本体51配合形成有将进气阀的出气口63与气室A相连通的气体通道82，喷头4的前端与喷嘴尖端52之间形成有将气室A与大气连通的径向间隙。
本实用新型在前柄1的前端螺纹连接喷嘴座8，通过喷嘴座8实现对喷头4及喷嘴的安装固定，与现有技术中前柄1直接通过喷头4安装喷嘴相比，本 实用新型有效优化了前柄1的连接结构，使得前柄1的结构设置更为简单，并且更加便于对前柄1内部的气体通道82进行加工，加工方便，降低了制造成本；此外，喷嘴本体51抵设于喷头4与喷嘴座8之间，既使得喷嘴在装配时较为方便快捷，同时也有效提高了喷嘴位置状态的稳定性，有利于充分保证喷嘴尖端52与喷头4之间的同轴度，提高了本实用新型的使用效果。
工作时，压缩空气依次经进气阀及气体通道82进入气室A中，并从喷头4的前端与喷嘴尖端52之间的径向间隙向外喷出，在气体从喷头4喷出的过程中，喷头4前端附近的压缩空气在喷嘴尖端52位置处形成负压，从而将虹吸通道12内的涂料从喷嘴中吸出，涂料经喷嘴尖端52喷出的同时又被从喷头4前端喷出的压缩空气雾化，进而实现雾化喷涂的效果。
前柄1与喷嘴座8之间、喷嘴座8与喷头4之间、喷嘴座8与喷嘴本体51之间分别设置有密封圈83，通过设置上述结构，充分保证了本实用新型内部压缩空气与涂料之间的隔离，使得压缩气体在气体通道82的流动过程中不会对涂料造成影响，从而保证了本实用新型工作性能的稳定性。
参见图1、图2、图3、图4及图5，容置腔7内还设有顶杆9，顶杆9的前端沿轴向设有供喷针3***的插槽91，顶杆9的后端伸出于尾柄2的外部并固定连接有按钮10，喷针3上固定连接有与顶杆9的前端止挡配合的锁紧螺母31，顶杆9与尾柄2之间套设有尾柄螺丝111，尾柄螺丝111与尾柄2螺纹连接，尾柄螺丝111与按钮10之间活动连接有锁紧套121；尾柄螺丝111的壁上对称设有一对安装孔，安装孔内活动装设有钢珠112，顶杆9的后端外周从前至后依次设有与钢珠112相配合的第一台阶部92和第二台阶部93，第一台阶部92的直径大于第二台阶部93的直径，锁紧套121的内壁从前至后依次设有与钢珠112相配合的环状深槽122和环状浅槽123，环状深槽122与 环状浅槽123相贯通，锁紧套121的中部设有与尾柄螺丝111的后端止挡配合的限位凸台124，限位凸台124与按钮10之间设有按钮弹簧101。
装配时，根据实际需求调整好尾柄螺丝111的位置，当需要对喷针3的位移进行限位时，只需通过按钮10向前推动顶杆9，顶杆9在移动过程中与钢珠112发生相对滑动，随着顶杆9的继续前移，由于第一台阶部92的直径大于第二台阶部93的直径，会使得钢珠112滑动至第二台阶部93内，此时钢珠112也相应地从环状深槽122中脱离，钢珠112对锁紧套121的止挡作用消失，锁紧套121会在按钮弹簧101的压力作用下随按钮10前移，直至限位凸台124与尾柄螺丝111相抵，此时钢珠112抵设于环状浅槽123与第二台阶部93之间，参见图3，顶杆9无法自行后移，从而实现对顶杆9位置的锁定，在这种位置状态下，顶杆9前端与锁紧螺母31之间的轴向间隙，即为喷针3的极限位移；当使用过程中需要使喷嘴完全打开时，只需向后拉动锁紧套121，锁紧套121在后移过程中，环状浅槽123逐渐脱离钢珠112，当钢珠112再次落入环状深槽122时，此时钢珠112对顶杆9的锁定消失，按钮10在按钮弹簧101的作用下带动顶杆9回移至原位，促使钢珠112抵设于环状深槽122与第一台阶部92之间，参见图2，使得顶杆9在钢珠112的作用下再次被锁定，在此状态下，由于锁紧螺母31与顶杆9之间的轴向距离增大，从而使得喷针3变为无限位状态，保证喷嘴能够完全打开。
综上所述，本实用新型每调节一次尾柄螺丝111的位置，通过锁紧套121、按钮10、顶杆9及钢珠112的配合作用，均能够有效实现顶杆9在两个不同位置的锁定，进而改变对喷针3的限位状态，操作较为方便，使用效果较好。
前柄1与尾柄2之间通过连接螺丝21相连接，喷针3的外部分别套设有调节杆32和弹簧调节螺丝33，调节杆32与弹簧调节螺丝33之间设有调节杆 弹簧34，调节杆32的后端穿过弹簧调节螺丝33并与锁紧螺母31螺纹连接；调节杆32的后端沿轴向设有夹紧槽321，当锁紧螺母31与调节杆32螺纹连接时，调节杆32的后端在夹紧槽321的作用下受力收缩并夹紧喷针3；弹簧调节螺丝33与连接螺丝21螺纹连接。扳机71上设置有用于驱动喷针3轴向移动的联动块711，联动块711呈偏心圆弧结构，联动块711的外周与调节杆32相抵，调节杆32的前端延伸有连接部322，联动块711的远离扳机71的一端活动套接于连接部322。尾柄2的与弹簧调节螺丝33相对应位置处设有缺口22。
向后扳动扳机71时，联动块711随扳机71同步转动，并通过其外周向后推抵调节杆32，调节杆32受到联动块711的轴向作用力，从而驱动喷针3及锁紧螺母31向后移动，喷针3在后移过程中与喷嘴尖端52之间形成间隙，促使涂料经喷嘴尖端52流出。根据扳机71向后扳动的角度的不同，喷针3移动的距离也相应地发生改变，喷针3与喷嘴尖端52之间的间隙也随之发生改变，进而改变本实用新型的排量。当松开扳机71时，调节杆32在调节杆弹簧34的驱动下带动喷针3及锁紧螺母31复位。使用时，用户通过尾柄2上预留的缺口22，便能够直接调整弹簧调节螺丝33与连接螺丝21之间的螺纹接入量，从而便能够对调节杆弹簧34的预紧压力进行调节，无需拆下尾柄2，有效减少了拆装次数，使用更为方便。
进气阀包括阀体61，阀体61的一端与前柄1固定连接，阀体61的另一端设有进气接头62，阀体61设有出气口63，进气接头62内分别设有阀杆64和开关孔65，阀杆64的一端依次穿过开关孔65、阀体61并与扳机71相抵，阀杆64的另一端设有与开关孔65密封配合的密封座66，进气接头62内还设有阀杆调节螺丝67，阀杆调节螺丝67与阀杆64的邻近密封座66的一端之间 设有进气阀弹簧68。
安装时利用进气接头62与气源相连接，当按压扳机71时，扳机71的端部推抵阀杆64，促使密封座66脱离开关孔65，使得气源内的压缩气体经开关孔65、出气口63及气体通道82进入气室A内，然后再流经喷头4前端与喷嘴尖端52之间的间隙后从喷头4的前端喷出。当松开扳机71时，阀杆64在进气阀弹簧68的作用下带动扳机71复位。通过对阀杆调节螺丝67的位置状态进行调节，从而便能够对进气阀弹簧68的预紧压力进行调节。
为了避免涂料回流至笔体的后端，容置腔7内从前至后依次设有锥形密封圈72和密封圈压帽73，密封圈压帽73及锥形密封圈72均设置于喷嘴座8与扳机71之间，密封圈压帽73与前柄1螺纹连接，锥形密封圈72抵设于前柄1与密封圈压帽73之间，通过设置上述结构，有效保证了本实用新型内部的密封性，从而避免了涂料的泄漏。
以上所述仅是本实用新型的较佳实施方式，故凡依本实用新型专利申请范围所述的构造、特征及原理所做的等效变化或修饰，均包括于本实用新型专利申请范围内。

Claims (9)

  1. 一种虹吸式喷笔，包括前柄、尾柄、喷针、喷头、喷嘴及进气阀，所述前柄与所述尾柄配合连接形成笔体，所述笔体的内部形成有容置腔，所述容置腔内设有所述喷针，所述前柄的壁上设有进料接头，所述前柄内设有与所述进料接头连通的虹吸通道，所述笔体的中部设有所述进气阀，所述容置腔内设有用于控制所述进气阀启闭的扳机，所述扳机的触发端伸出于所述前柄的外部，所述扳机与所述喷针联动配合，其特征在于：还包括喷嘴座，所述喷嘴座的后端与所述前柄螺纹连接，所述喷嘴座的前端与所述喷头螺纹连接，所述喷嘴包括喷嘴本体，所述喷嘴本体抵设于所述喷头与所述喷嘴座之间，所述喷嘴本体的前端延伸设有喷嘴尖端，所述喷嘴座的中心设置有轴通孔，所述虹吸通道与所述轴通孔相连通，所述喷针的前端穿过所述轴通孔、所述喷嘴本体并伸入于所述喷嘴尖端内；所述喷头、所述喷嘴本体及所述喷嘴尖端之间形成有气室，所述前柄、所述喷嘴座及所述喷嘴本体配合形成有将所述进气阀的出气口与所述气室相连通的气体通道，所述喷头的前端与所述喷嘴尖端之间形成有将所述气室与大气连通的径向间隙。
  2. 根据权利要求1所述的虹吸式喷笔，其特征在于：所述前柄与所述喷嘴座之间、所述喷嘴座与所述喷头之间、所述喷嘴座与所述喷嘴本体之间分别设置有密封圈。
  3. 根据权利要求1所述的虹吸式喷笔，其特征在于：所述容置腔内还设有顶杆，所述顶杆的前端沿轴向设有供所述喷针***的插槽，所述顶杆的后端伸出于所述尾柄的外部并固定连接有按钮，所述喷针上固定连接有与所述顶杆的前端止挡配合的锁紧螺母，所述顶杆与所述尾柄之间套设有尾柄螺丝，所述尾柄螺丝与所述尾柄螺纹连接，所述尾柄螺丝与所述按钮之间活动连接 有锁紧套；所述尾柄螺丝的壁上对称设有一对安装孔，所述安装孔内活动装设有钢珠，所述顶杆的后端外周从前至后依次设有与所述钢珠相配合的第一台阶部和第二台阶部，所述第一台阶部的直径大于所述第二台阶部的直径，所述锁紧套的内壁从前至后依次设有与所述钢珠相配合的环状深槽和环状浅槽，所述环状深槽与所述环状浅槽相贯通，所述锁紧套的中部设有与所述尾柄螺丝的后端止挡配合的限位凸台，所述限位凸台与所述按钮之间设有按钮弹簧。
  4. 根据权利要求3所述的虹吸式喷笔，其特征在于：所述前柄与所述尾柄之间通过连接螺丝相连接，所述喷针的外部分别套设有调节杆和弹簧调节螺丝，所述调节杆与所述弹簧调节螺丝之间设有调节杆弹簧，所述调节杆的后端穿过所述弹簧调节螺丝并与所述锁紧螺母螺纹连接；所述调节杆的后端沿轴向设有夹紧槽，当所述锁紧螺母与所述调节杆螺纹连接时，所述调节杆的后端在所述夹紧槽的作用下受力收缩并夹紧所述喷针；所述弹簧调节螺丝与所述连接螺丝螺纹连接。
  5. 根据权利要求4所述的虹吸式喷笔，其特征在于：所述扳机上设置有用于驱动所述喷针轴向移动的联动块，所述联动块呈偏心圆弧结构，所述联动块的外周与所述调节杆相抵，所述调节杆的前端延伸有连接部，所述联动块的远离所述扳机的一端活动套接于所述连接部。
  6. 根据权利要求4所述的虹吸式喷笔，其特征在于：所述尾柄的与所述弹簧调节螺丝相对应位置处设有缺口。
  7. 根据权利要求1所述的虹吸式喷笔，其特征在于：所述进气阀包括阀体，所述阀体的一端与所述前柄固定连接，所述阀体的另一端设有进气接头，所述阀体设有所述出气口，所述进气接头内分别设有阀杆和开关孔，所述阀 杆的一端依次穿过所述开关孔、所述阀体并与所述扳机相抵，所述阀杆的另一端设有与所述开关孔密封配合的密封座，所述进气接头内还设有阀杆调节螺丝，所述阀杆调节螺丝与所述阀杆的邻近所述密封座的一端之间设有进气阀弹簧。
  8. 根据权利要求1所述的虹吸式喷笔，其特征在于：所述容置腔内从前至后依次设有锥形密封圈和密封圈压帽，所述密封圈压帽及所述锥形密封圈均设置于所述喷嘴座与所述扳机之间，所述密封圈压帽与所述前柄螺纹连接，所述锥形密封圈抵设于所述前柄与所述密封圈压帽之间。
  9. 根据权利要求1所述的虹吸式喷笔，其特征在于：所述喷头的外部连接设有喷头套。
PCT/CN2016/071343 2015-09-23 2016-01-19 一种虹吸式喷笔 WO2017049820A1 (zh)

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CN114082548A (zh) * 2020-12-10 2022-02-25 东莞市长原喷雾技术有限公司 一种手持式喷雾装置
CN113769915A (zh) * 2021-08-24 2021-12-10 中国南方电网有限责任公司超高压输电公司昆明局 螺栓防松标记装置
CN113680544B (zh) * 2021-08-30 2022-12-16 浙江工业大学 一种采用滑动结构调节的降噪喷嘴

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