WO2021114942A1 - 喷雾器 - Google Patents

喷雾器 Download PDF

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Publication number
WO2021114942A1
WO2021114942A1 PCT/CN2020/125046 CN2020125046W WO2021114942A1 WO 2021114942 A1 WO2021114942 A1 WO 2021114942A1 CN 2020125046 W CN2020125046 W CN 2020125046W WO 2021114942 A1 WO2021114942 A1 WO 2021114942A1
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WO
WIPO (PCT)
Prior art keywords
backstop
cylinder
adapter
connecting port
port
Prior art date
Application number
PCT/CN2020/125046
Other languages
English (en)
French (fr)
Inventor
乔勇
王其彬
高昌印
Original Assignee
苏州宝时得电动工具有限公司
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
Priority claimed from CN201922247222.4U external-priority patent/CN211707144U/zh
Priority claimed from CN201911281575.4A external-priority patent/CN112974027A/zh
Application filed by 苏州宝时得电动工具有限公司 filed Critical 苏州宝时得电动工具有限公司
Publication of WO2021114942A1 publication Critical patent/WO2021114942A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes

Definitions

  • the invention relates to the technical field of equipment for liquid spraying, in particular to a sprayer.
  • Sprayers are generally used to apply liquids such as but not limited to insecticides, herbicides, fungicides, insecticides, fertilizer solutions, nutrient solutions, etc., to the target area for ground maintenance, crop growth support, pest control, and the like.
  • the sprayer may include a host equipped with a gas generating mechanism and a cylinder for accommodating liquid.
  • the control switch When in use, the host is connected to the cylinder, the control switch is activated, the gas generating mechanism is operated, and the cylinder is filled with high-pressure gas to pressurize the liquid contained in the cylinder.
  • the air pressure in the cylinder exceeds a certain value, the liquid contained in the cylinder is ejected through the nozzle and applied to the target area to realize the spraying operation.
  • the host in the existing sprayer can generally only be connected to a barrel of a corresponding model.
  • the embodiment of the present invention provides a sprayer, which can adapt a host to a variety of different barrels, and the host has better versatility.
  • the present invention provides the following technical solutions.
  • a sprayer including:
  • the cylinder is provided with a connecting port, and the connecting port has an axial direction;
  • the host includes a gas generating mechanism; the gas outlet end of the gas generating mechanism is equipped with a connecting piece that can be inserted into the connecting port and can move in the connecting port along the axis direction, and the connecting piece includes a connecting piece that communicates with the gas.
  • a backstop mechanism one end of which is detachably connected with the cylinder body, and the other end is provided with a second backstop part that cooperates with the first backstop part; when the backstop mechanism is connected to the cylinder body, the The backstop mechanism and the cylinder are fixed at least along the axial direction; when the connecting member is in the working position in the connecting port, the first backstop portion and the second backstop portion cooperate to restrain the connection member Move in the direction away from the cylinder in the connecting port.
  • the backstop mechanism includes an adapter that is detachably connected to the cylinder and a backstop connected to the adapter; the first backstop is provided on the backstop.
  • the backstop member is connected with a backstop ring, and the first backstop portion is provided on the inner wall of the backstop ring;
  • the first backstop part is an external thread formed on the outer wall of the connector, and the second backstop part is an internal thread formed on the inner wall of the backstop ring; or,
  • the first backstop part is a first backstop tooth formed on the outer wall of the connecting member and extends obliquely downward
  • the second backstop part is a first backstop tooth formed on the inner wall of the backstop ring and extends obliquely downward.
  • Two stop back teeth are provided.
  • the barrel includes a barrel, a bottleneck structure that is arranged on the barrel and necked inward in a radial direction, and a spout structure that is arranged on the bottleneck structure and expands radially outward;
  • the connection port is formed in the bottleneck structure;
  • a snap ring is connected to the end of the adapter piece facing away from the stopper, and the snap ring is detachably sleeved outside the bottleneck structure and abuts against the lower end of the spout structure.
  • the snap ring includes a plurality of fan rings, and the plurality of fan rings can be enclosed and spliced to form the snap ring.
  • the adapter includes a radial adapter portion corresponding to a plurality of the sector rings, and an axial adapter portion corresponding to the plurality of the radial adapter portions; a plurality of the sector rings They are respectively provided at the ends of a plurality of the radial adapter portions facing away from the axial adapter portion, and the axial adapter portion and the stopper can be fixedly connected at least along the axial direction.
  • a sealing member is provided outside the connecting member, and the sealing member seals the gap between the connecting member and the connecting port when the connecting member is in the working position.
  • a pressure block is provided on the connecting member; when the connecting member is in the working position, the pressure block presses the sealing member between the pressure block and the connecting port.
  • the pressure block has a necked part and a circumferential expansion flange located above the necked part, and the sealing member is sleeved outside the necked part and abuts against the circumferential expansion flange. Lower end.
  • the radial dimension of the constricted portion is not greater than the diameter of the connecting port, and the radial dimension of the circumferential expansion flange is greater than the diameter of the connecting port;
  • the necked part When the connecting member is in the working position, the necked part is embedded in the connecting port, the circumferential expansion flange blocks the outer end surface of the connecting port, and the sealing member is pressed against the circumferential expansion convex Between the rim and the inner wall of the connecting port.
  • the pressure block is sleeved outside the connecting member; when the connecting member rotates circumferentially in the connecting port, the pressure block and the sealing member are stationary relative to the connecting port, and the pressure The block and the sealing member do not rotate together with the connecting member.
  • the outer wall of the connecting piece is provided with a pushing step located above the pressure block, and the pushing step abuts against the upper end surface of the circumferential expansion flange.
  • the stop mechanism and the cylinder are fixed at least along the axial direction, and the first stop part and the second stop part cooperate to restrain the connecting part Move in the direction away from the cylinder in the connecting port. Therefore, with the aid of the anti-return mechanism, the connecting piece is fixed in the connecting port and maintained in the working position without being separated from the connecting port.
  • the anti-return mechanism is detachably connected to the cylinder. Therefore, when it is necessary to adapt the host to other types of cylinders, simply disassemble the stop mechanism from the current cylinder, and then connect it to the cylinder that needs to be replaced, and the connecting piece can be attached to another cylinder.
  • the position in the connecting port of the body is fixed, so as to realize the adaptation and installation of the host and the barrels of different models. In this way, a host can be adapted to a variety of different types of cylinders, which improves the versatility of the host.
  • Fig. 1 is a schematic structural diagram of a sprayer according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the structure of the barrel in the sprayer shown in FIG. 1;
  • Fig. 3 is a schematic view of the structure of the connector in the sprayer shown in Fig. 1;
  • FIG. 4 is a schematic diagram of the structure of the stop mechanism in the sprayer shown in FIG. 1;
  • Fig. 5 is a schematic top view of the structure of the stop mechanism shown in Fig. 4;
  • FIG. 6 is a schematic diagram of the structure of the backstop member in the backstop mechanism shown in FIG. 4;
  • Figure 7 is a schematic diagram of the assembling structure of the retraction mechanism and the connecting piece
  • FIG. 8 is a schematic diagram of the assembly and exploded structure of the pressure block and the seal in the sprayer shown in FIG. 1.
  • the direction of the sprayer according to the embodiment of the present invention that faces the ground under normal use is defined as “front”, and the opposite, or the direction toward or facing the ground is defined as “rear”. More specifically, the upward direction shown in FIG. 1 is defined as “up”, and the downward direction shown in FIG. 1 is defined as “down”.
  • the sprayer of the embodiment of the present invention mainly includes two parts, namely the main body 1 and the cylinder 2. The two are detachably connected through the connecting piece 3.
  • the host 1 may include a housing 101 and a gas generating mechanism housed in the housing 101 for generating high-pressure gas.
  • the connecting piece 3 can be connected to the gas outlet end of the gas generating mechanism.
  • the connecting member 3 is generally a hollow rod-shaped structure, which has a gas guiding channel 302, which communicates with the gas outlet end of the gas generating mechanism and the cylinder 2, and is used to introduce the high-pressure gas generated by the gas generating mechanism into the cylinder 2. Pressure is applied to the liquid in the cylinder 2 to eject the liquid through a nozzle or nozzle connected to the cylinder 2.
  • the gas generating mechanism may be a manual operation structure, including a manual air pump.
  • the air outlet of the manual air pump forms the air outlet end of the gas generating mechanism, and the piston rod of the manual air pump can be connected to the operating member.
  • the operator When in use, the operator kneads the operating member to drive the piston to move in the piston barrel to generate high-pressure gas.
  • the gas generating mechanism is not limited to the above-mentioned manually operated structure, and may also be an electrically driven structure.
  • the electrically driven structure may include a motor 102 and an air pump 103 (electric air pump) rotationally driven by the motor 102.
  • the air outlet of the electric air pump 103 forms the air outlet of the gas generating mechanism.
  • the outlet end can be connected with an adapter elbow 108, and the upper end of the connecting piece 3 can be provided with a plug connector 303.
  • the plug connector 303 can be plugged into the adapter elbow 108, thereby realizing the outlet end and the cylinder of the electric air pump 103 2. Connectivity.
  • a deceleration mechanism 104 (for example, gears of different diameters) and a crank slider mechanism 105 may be provided between the motor 102 and the air pump 103 to convert the high-speed rotary motion of the motor 102 into the low-speed linear reciprocating motion of the piston of the air pump 103.
  • a battery pack joint 109 may be provided on the housing 101 for detachably connecting the battery pack.
  • the casing 101 may contain a control module, and the control module is electrically connected to the motor 102, the battery pack joint 109, and a micro switch provided on the casing 101.
  • the control module can generate an on-off signal for controlling the start and stop of the motor 102 based on the triggering of the micro switch, and load the on-off signal into the driving information and transmit it to the motor 102 to control the motor 102 to run or stop.
  • the host 1 can be provided with a pressure sensor 106 connected to the control module for detecting the gas pressure in the cylinder 2, and the detection channel 107 of the pressure sensor 106 can communicate with the internal space of the cylinder 2 through the adapter elbow 108.
  • the control module controls the motor 102 to stop and stop continuing to pressurize the cylinder 2. After the spray is turned on for a certain period of time, the pressure in the cylinder 2 decreases.
  • the control module controls the motor 102 to operate to supplement the pressure in the cylinder 2.
  • the cylinder 2 may be provided with a pressure relief valve, which may be directly arranged on the side wall of the cylinder 2, or on the nozzle. After the spraying operation is completed, there is residual pressure in the cylinder 2, and the pressure can be relieved by manually operating the pressure relief valve. In order to avoid the subsequent disassembly of the main body 1 and the barrel 2, due to the high pressure in the barrel 2 causing an accident of shooting between the two.
  • the connecting piece 3 plays a role of connecting the gas generating mechanism and the cylinder 2 on the one hand, and on the other hand, is used to realize the connection between the host 1 and the cylinder 2.
  • One end (upper end) of the connecting piece 3 is connected to the gas outlet end of the gas generating mechanism, and the other end (lower end) extends to the outside of the casing 101 for connection with the cylinder 2.
  • the barrel 2 is provided with a connecting port 201 for the connecting piece 3 to pass through.
  • the connecting port 201 has an axial direction. As shown in FIGS. 1 and 2, the connecting port 201 may be provided at the upper end of the cylinder 2, and the axial direction may be the up and down direction shown in FIGS. 1 and 2.
  • the outer diameter of the connecting piece 3 is not greater than the diameter of the connecting port 201, so that the connecting piece 3 can be movably inserted in the connecting port 201, and can move up and down along the axis in the connecting port 201, or it can be around the axis in the connecting port 201 Direction rotation.
  • the connecting member 3 can be fixed to the host 1 in the circumferential and axial directions.
  • the lower end of the connecting member 3 can extend to the outside of the host 1. In this way, the operator only needs to hold the housing 101 of the host 1 and apply a rotating force or pressing force to the housing 101, and the connecting member 3 can be driven to rotate or move axially in the connecting port 201.
  • the embodiment of the present invention uses an external stop mechanism 10 to implement the host 1 and the cylinder. Removable connection of body 2.
  • the so-called model of the cylinder 2 may include the specifications of the cylinder 2 (including volume, height, maximum radial size, etc.), capacity, and the diameter of the connecting port 201.
  • the diameters of the connecting ports 201 configured for different types of cylinders 2 are different.
  • the diameter of the connecting port 201 of the barrels 2 of multiple different models that are compatible with the same host 1 is not larger than the outer diameter of the connecting piece 3. In this way, the connecting member 3 can be moved or rotated in the connecting ports 201 of the cylinders 2.
  • the outer wall of the connecting member 3 may be provided with a first backstop portion 301, one end of the backstop mechanism 10 (the lower end as shown in FIG. 1) is detachably connected to the cylinder 2, and the other end ( The upper end as shown in FIG. 1 may be provided with a second backstop part 1002 that can cooperate with the first backstop part 301.
  • the anti-return mechanism 10 When the anti-return mechanism 10 is connected to the cylinder body 2, it is fixed to the cylinder body 2 at least along the axial direction (the up-and-down direction as shown in FIG. 1).
  • the first stopping portion 301 and the second stopping portion 1002 cooperate to restrain the connecting member 3 from moving in the direction away from the cylinder 2 in the connecting port 201.
  • the stop mechanism 10 and the cylinder 2 are fixed at least along the axial direction, and the first stop part 301 and The second stopper 1002 cooperates to restrain the connecting member 3 from moving in the direction away from the cylinder 2 in the connecting port 201.
  • the connecting member 3 is fixed in the connecting port 201 and maintained in the working position without being separated from the connecting port 201.
  • the anti-return mechanism 10 is detachably connected to the cylinder 2. Therefore, when the host 1 needs to be adapted to the barrel 2 of other models, simply disassemble the stop mechanism 10 from the current barrel 2, and then connect it to the barrel 2 that needs to be replaced.
  • the position of the piece 3 in the connection port 201 of the other cylinder 2 is fixed, so as to realize the adaptation and installation of the host 1 and the cylinder 2 of different models. In this way, one host 1 can be adapted to a variety of different types of barrels 2, which improves the versatility of the host 1.
  • the connecting member 3 When the connecting member 3 moves in the axial direction of the connecting port 201, the connecting member 3 can move relative to the backstop mechanism 10 at the same time, which can drive the first backstop part 301 provided on the connector 3 and the backstop mechanism
  • the second stop 1002 on 10 move mutually to achieve cooperation.
  • the cooperation of the first stopping portion 301 and the second stopping portion 1002 can restrain the connecting member 3 from moving upward.
  • the anti-return mechanism 10 may include an adapter 4 detachably connected to the barrel 2 and a anti-return member 5 connected to the adapter 4.
  • the second backstop part 1002 is provided on the backstop 5.
  • the anti-return member 5 can be connected with a anti-return ring 7, and the second anti-return part 1002 can be provided on the inner wall of the anti-return ring 7.
  • the adapter 4 can be connected with the cylinder 2 by virtue of the special structure of the cylinder 2.
  • the cylinder body 2 may include a cylinder body 202, a bottleneck structure 203 arranged on the cylinder body 202 and contracted radially inward, and a bottleneck structure 203 arranged on the bottleneck structure 203 and arranged along the radial direction.
  • the spout structure 204 that expands outward; the connection port 201 may be formed in the bottleneck structure 203. As shown in FIG.
  • a snap ring 6 can be connected to the end of the adapter 4 facing the backstop 5, and the snap ring 6 is detachably sleeved outside the bottleneck structure 203 and abuts against the lower end of the spout structure 204. In this way, when the snap ring 6 is sleeved outside the bottleneck structure 203, it can be axially restricted by the barrel 202 and the spout structure 204.
  • the snap ring 6 may include a plurality of fan rings 601, and the plurality of fan rings 601 can be enclosed and spliced to form the snap ring 6.
  • the adapter 4 may include a radial adapter portion 401 correspondingly connected to the plurality of sector rings 601, and a corresponding radial adapter portion 401 connected to the plurality of radial adapter portions 401.
  • the axial transfer portion 402, the axial transfer portion 402 and the stopper 5 are fixedly connected at least along the axial direction.
  • the adapter 4 can be roughly in the shape of a turning or "L"
  • the radial adapter 401 extends radially, and its outer end can be located on the outside of the edge of the spout structure 204, and rotates axially.
  • the connecting portion 402 may be provided at the outer end of the radial adapter portion 401.
  • the radial adapter portion 401 and the axial adapter portion 402 are integrally constructed.
  • the outer end of the radial adapter portion 401 may be bent upward to form the axial adapter portion 402. Therefore, interference between the adapter 4 and the spout structure 204 can be avoided.
  • the number of sector rings 601 can be set according to actual conditions, the central angle of each sector ring 601 can be 360/n°, and n is the number of sector rings 601. In this way, when a plurality of fan rings 601 are combined, a complete ring-shaped snap ring 6 can be formed.
  • the number of the adapters 4 is equal to the number of the sector rings 601, and the plurality of sector rings 601 are respectively arranged at the ends of the plurality of radial adapter portions 401 facing away from the axial adapter portion 402, that is, the inner end. In this way, the plurality of adapters 4 hold a plurality of fan rings 601 to enclose the bottleneck structure 203 of the cylinder 2 to define the snap ring 6.
  • the anti-return member 5 may be in the shape of a rod, and the number thereof may also be multiple, corresponding to the number of the multiple axial adapter portions 402.
  • a plurality of stoppers 5 are connected to the outer wall of the stop ring 7, and the plurality of stoppers 5 are evenly arranged in the circumferential direction.
  • the stopper 5 and the axial adapter portion 402 are fixed at least along the axial direction, so that the adapter 4 can be fixed by the cylinder 2 and the stopper 5 in the axial direction, and the adapter 4 can be used as an axial fixing member.
  • the connecting piece 3 is axially fixed.
  • the anti-return member 5 can also be plate-shaped, and the plate-shaped anti-return member 5 can be provided with an opening, and the anti-return ring 7 can be provided in the opening.
  • the stop member 5 is plate-shaped and the stop member 5 is provided with an opening, it is not necessary to provide the stop ring 7 in the opening, but the second stop part 1002 is directly provided on the inner wall of the opening on.
  • the adapter 4 can be detachably connected with the backstop 5, or the adapter 4 can be oriented relative to the backstop 5 External rotation.
  • the way in which the adapter 4 and the stop member 5 can be detachably connected can be that the stop member 5 is provided with a hole for the axial adapter 402 to pass through.
  • the mounting hole 502 may be a through hole that penetrates the upper and lower surfaces of the backstop member 5, and the first pin hole may be a blind hole that penetrates the outer wall surface of the backstop member 5 and is in butt communication with the mounting hole 502.
  • a pin shaft 503 is inserted through the first pin hole in a pluggable manner.
  • the pin shaft 503 is inserted into the mounting hole 502 at the axial adapter portion 402 to press against the side wall of the axial adapter portion 402, so that the axial The adapter part 402 is fixed in the mounting hole 502.
  • the axial adapter portion 402 can be pulled out from the mounting hole 502, so that the adapter 4 and the stop member 5 can be disassembled.
  • the mounting hole 502 may further open toward the outside.
  • the axial adapter portion 402 can enter the mounting hole 502 through the outer opening, and can move horizontally in the mounting hole 502, so as to adapt to the bottleneck structures 203 with different outer diameters of the different cylinders 2.
  • a second pin hole may be provided in the axial adapter portion 402, and the second pin hole may be a through hole penetrating the left and right side walls of the axial adapter portion 402.
  • the second pin hole corresponds to the first pin hole
  • the pin shaft 503 is inserted and pulled through the first pin hole and the second pin hole.
  • insert the axial adapter portion 402 into the mounting hole 502 align the second pin hole with the first pin hole, and then insert the pin shaft 503 in the second pin hole and the first pin hole to achieve anti-return Assembly of piece 5 and adapter 4.
  • the axial adapter portion 402 can be pulled out from the mounting hole 502 to realize the disassembly of the two.
  • the pin shaft 503 may be a U-shaped pin with two relatively parallel pin forks.
  • the numbers of the first pin holes and the second pin holes can be two respectively, and the two pin forks of the pin shaft 503 can be respectively penetrated in the two first pin holes and the second pin holes.
  • the pin 503 can be pulled out, and the adapter 4 and the stopper 5 can be disassembled and separated. Subsequently, the adapter 4 can be removed, and the fan ring 601 connected to the inner end of the radial adapter 401 can be separated from the bottleneck structure 203 of the cylinder 2 to realize the disassembly of the adapter 4 and the cylinder 2.
  • the way in which the stop member 5 and the adapter 4 are rotationally connected can be that the outer end of the stop member 5 is provided with a gap, and the upper end of the axial adapter portion 402 is embedded in the gap, and is connected to The outer end of the stopper 5 is connected.
  • the adapter 4 can rotate around the rotating shaft, so that the fan ring 601 connected to the end of the adapter 4 is away from the bottleneck structure 203 of the cylinder 2 to realize the disassembly of the snap ring 6 and the bottleneck structure 203.
  • the first backstop portion 301 may be an external thread formed on the outer wall of the connecting member 3, and the second backstop portion 1002 may be formed on the backstop ring 7. Internal thread of the inner wall.
  • the connecting member 3 can rotate in the circumferential direction, and by means of the screwing movement between the threads, the connecting member 3 can realize the axial movement synchronously in the connecting port 201 while rotating.
  • the operator can hold the casing 101 of the main unit 1, and apply a rotational force to the casing 101 to drive the connecting member 3 to rotate in the buckling direction.
  • the connecting piece 3 moves downward in the axial direction in the connecting port 201 by means of the screwing action of the thread.
  • the connecting piece 3 axially moves to the position, that is, the working position is reached, the rotation is stopped.
  • the connecting member 3 is axially limited or fixed, so that the connecting member 3 is maintained in the working position.
  • the housing 101 is rotated in the reverse direction, so that the connecting piece 3 is rotated in the shackle direction.
  • the connecting piece 3 moves upward in the axial direction in the connecting port 201.
  • the anti-return mechanism 10 is removed from the cylinder 2 again.
  • the backstop mechanism 10 is connected to the cylinder 2 that needs to be replaced. Then perform the above-mentioned buckling steps to complete the assembly of the host 1 and the other cylinder 2.
  • the internal and external threads are preferably fine threads, so as to reduce the risk of loosening of the connecting member 3 and falling out of the connecting port 201 when the connecting member 3 is in the working position.
  • the axial movement of the connecting piece 3 can be realized by rotating the connecting piece 3 and by means of screwing.
  • the backstop part is not limited to the embodiment using threads.
  • the first backstop part 301 may be a first backstop tooth formed on the outer wall of the connecting member 3 and extending obliquely downward.
  • the second backstop portion 1002 may be a second backstop tooth formed on the inner wall of the backstop ring 7 and extending obliquely downward.
  • the first anti-retraction tooth can move downwards relative to the second anti-retraction tooth, and the first anti-retraction tooth and the second anti-retraction tooth mesh or engage with each other, which can restrict the first anti-retraction tooth relative to the second anti-retraction tooth. Move up. In this way, the connecting member 3 can move downward relative to the anti-return mechanism 10 to realize the axial downward movement in the connecting port 201.
  • the backstop part adopts a backstop tooth structure, so that the connecting member 3 can only move in one direction relative to the backstop mechanism 10, that is, the connecting member 3 can only move downwards, but not upwards.
  • the anti-retraction ring 7 defining the second anti-retraction tooth may adopt a detachable splicing structure.
  • the anti-return ring 7 may include a plurality of spliced ring bodies, and the inner wall of each spliced ring body is provided with anti-return teeth, and the plurality of spliced ring bodies can be joined together to form the anti-return ring 7.
  • the multiple spliced ring bodies can be maintained in a split state by a circumferential fixing member such as a hoop.
  • the operator can hold the housing 101 of the host 1 and apply a downward pressing force to the housing 101.
  • the connecting piece 3 can pass through the anti-return ring 7 to move downward. After the connecting piece 3 axially moves to the position and reaches the working position, stop pressing. At this time, with the help of the meshing or occluding effect of the first anti-retraction tooth and the second anti-retraction tooth, the connecting member 3 is axially limited or fixed, so that the connecting member 3 is maintained in the working position.
  • the circumferential fixing part of the backstop ring 7 is released, and the backstop ring 7 is disassembled.
  • the first backstop tooth loses the occlusal effect of the second backstop tooth on it, that is, the connecting member 3 loses its axial limiting or fixing function of the backstop mechanism 10, and the connecting member 3 can move upward in the axial direction. Withdraw from the connection port 201.
  • the anti-return mechanism 10 can be detached from the cylinder 2. Then connect the backstop mechanism 10 to the cylinder 2 that needs to be replaced. Perform the above-mentioned pressing step again to complete the assembly of the host 1 and the other cylinder 2.
  • a host 1 is adapted to multiple different cylinders 2 and requires that the outer diameter of the connecting piece 3 is not greater than the caliber of the connecting port 201 of the cylinder 2. Therefore, after the connecting member 3 is positioned in the connecting port 201, there will be a gap between the connecting member 3 and the connecting port 201, and the working principle of the sprayer requires the cylinder 2 to have better air tightness. Therefore, in order to solve the problem of sealing at the joint between the connecting piece 3 and the connecting port 201, the connecting piece 3 is provided with a sealing piece 8 which seals the gap between the connecting piece 3 and the connecting port 201 when the connecting piece 3 is in the working position. Gap.
  • the sealing member 8 has a ring shape and is made of a flexible sealing material (for example, rubber).
  • a pressure block 9 can be used to limit it.
  • the pressing block 9 has a ring shape or a ring shape, and can be sleeved outside the connecting piece 3. When the connecting piece 3 is in the working position, the pressing block 9 can press the sealing piece 8 between the pressing block 9 and the connecting port 201.
  • the pressure block 9 is substantially in the shape of an inverted "convex" shape, which may include a necked portion 901 and a circumferential expansion flange 902 located above the necked portion 901, and the seal 8 may be sleeved outside the necked portion 901 And abut against the lower end of the circumferential expansion flange 902.
  • the surface of the circumferential expansion flange 902 in contact with the seal 8 forms a stop surface or a limit surface, so that the seal 8 and the circumferential expansion flange 902 are in surface contact.
  • the pressure block 9 can also be made of a flexible sealing material.
  • the radial dimension of the circumferential expansion flange 902 is greater than the caliber of the connecting port 201, and the radial size of the constricted portion 901 is not greater than the caliber of the connecting port 201, preferably slightly larger than the caliber of the connecting port 201.
  • the necked part 901 is embedded in the connecting port 201 to form an interference fit
  • the circumferential expansion flange 902 seals the outer end surface of the connecting port 201, and the sealing member 8 is pressed tightly. Between the circumferential expansion flange 902 and the inner wall of the connecting port 201, a stable seal is formed to the connecting port 201.
  • the connecting member 3 realizes the axial downward movement in the connecting port 201 through a rotational movement.
  • the connecting member 3 rotates circumferentially in the connecting port 201
  • the pressure block 9 and the sealing member 8 are stationary relative to the connecting port 201. That is, the pressure block 9 and the sealing member 8 do not rotate together with the connecting member 3. In this way, friction between the sealing element 8 and the connecting port 201 when rotating together with the connecting element 3 can be avoided, thereby avoiding the problems of poor sealing effect and reduced service life due to wear of the sealing element 8.
  • the implementation manner of preventing the pressure block 9 and the sealing member 8 from rotating together with the connecting member 3 can be implemented as follows: the necked part 901 of the pressure block 9 can be embedded in the connecting port 201, and the two are in an interference fit.
  • the pressing block 9 is provided with a through hole 903 in which the connecting piece 3 is penetrated.
  • the friction force between the connecting port 201 and the necked part 901 is greater than the friction force between the connecting piece 3 and the through hole 903. In this way, the circumferential friction force exerted by the connecting member 3 on the pressure block 9 during the rotation is overcome by the friction force exerted by the connecting port 201 on the necked part 901.
  • the pressing block 9 remains stationary and does not rotate with the connecting member 3.
  • the outer wall of the connecting member 3 may be provided with a pushing step 304 located above the pressure block 9, and the pushing step 304 abuts against the circumferential expansion flange
  • the pushing step 304 may be a part of the structure of the connecting member 3 itself, and it may be a shoulder formed on the outer wall of the connecting member 3.
  • the connecting member 3 is arranged in sections, which includes an upper section with a larger outer diameter and a lower section with a smaller outer diameter.
  • the pressure block 9 can be sleeved on the lower section, and the part of the upper section beyond the lower section forms the pushing step. 304.
  • the pushing step 304 may be an additional separate component, and specifically may be a sleeve structure fixedly sleeved outside the connecting member 3.
  • the connecting member 3 is driven to move downward in the connecting port 201, and the pushing step 304 moves downward along with it.
  • the connecting piece 3 continues to move downward, and the pushing force applied by the pushing step 304 to the circumferential expansion flange 902 gradually increases until the connecting piece 3 is moved to the working position, the necked part 901 is pushed down and pressed into the connection port 201, the sealing element 8 is tightly pressed between the circumferential expansion flange 902 and the connection port 201 to realize the connection between the connection member 3 and the connection port 201. Seal the gap between the connection ports 201.

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Abstract

喷雾器，包括筒体（2），设有具有轴线方向的连接口（201）；主机（1），包括气体产生机构，其出气端有能插入连接口（201）并能沿轴线方向移动的连接件（3），连接件（3）包括连通气体产生机构的出气端与筒体的导气通道、设在其外壁的第一止退部（301）；止退机构，一端与筒体（2）可拆卸连接，另一端设有与第一止退部（301）可配合的第二止退部（1002）；止退机构与筒体（2）连接时，止退机构与筒体（2）至少沿轴线方向固定；连接件（3）在连接口（201）中处于工作位置时，第一止退部（301）和第二止退部（1002）配合以抑制连接件（3）在连接口（201）中朝背离筒体（2）的方向移动。该喷雾器使一个主机（1）适配多种不同筒体（2），通用性较佳。

Description

喷雾器
本申请要求了申请日为2019年12月13日，申请号为201911281575.4和201922247222.4的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及液体喷洒用设备技术领域，尤其涉及一种喷雾器。
背景技术
喷雾器通常可用于将液体例如包括但不限于杀虫剂、除草剂、杀真菌剂、杀虫剂、肥料溶液、营养液等施加到目标区域，用于地面维护、支持作物生长、害虫防治等。在一种已知的实施例中，喷雾器可包括设有气体产生机构的主机和用于容置液体的筒体。使用时，主机与筒体连接，启动控制开关，气体产生机构操作，向筒体内充入高压气体，对容置与筒体内的液体进行增压。当筒体内的气压超过一定值后，筒体内容置的液体通过喷嘴喷出并被施加到目标区域上，实现喷雾作业。
但是，现有的喷雾器中的主机，一般只能针对性连接一种对应型号的筒体。当需要使用多种不同型号的筒体时，需要针对这些型号不同的筒体的型号配备对应的主机。因此，主机无法与多种不同型号的筒体适配，通用性较差。
发明内容
基于前述的现有技术缺陷，本发明实施例提供了一种喷雾器，其可使一个主机适配多种不同筒体，主机的通用性较佳。
为了实现上述目的，本发明提供了如下的技术方案。
一种喷雾器，包括：
筒体，设有连接口，所述连接口具有轴线方向；
主机，包括气体产生机构；所述气体产生机构的出气端配接有能插入所述连接口中并能在所述连接口中沿所述轴线方向移动的连接件，所述连接件包括连通所述气体产生机构的出气端与所述筒体的导气通道、设于其外壁的第一止退部；
止退机构，其一端与所述筒体可拆卸连接，另一端设有与所述第一止退部配合的第二止退部；所述止退机构与所述筒体连接时，所述止退机构与所述筒体至少沿所述轴线方向固定；所述连接件在所述连接口中处于工作位置时，所述第一止退部与第二止退部配合以抑制所述连接件在所述连接口中朝背离所述筒体的方向移动。
优选地，所述止退机构包括与所述筒体可拆卸连接的转接件、与所述转接件连接的止退件；所述第一止退部设在所述止退件上。
优选地，所述止退件连接有止退环，所述第一止退部设在所述止退环的内壁；
所述第一止退部为形成在所述连接件外壁的外螺纹，所述第二止退部为形成在所述止退环内壁的内螺纹；或者，
所述第一止退部为形成在所述连接件外壁并倾斜向下延伸的第一止退齿，所述第二止退部为形成在所述止退环内壁并倾斜向下延伸的第二止退齿。
优选地，所述筒体包括筒身、设在所述筒身上并沿径向向内颈缩的瓶颈结构、设在所述瓶颈结构上并沿径向向外扩展的壶口结构；所述连接口形成在所述瓶颈结构中；
所述转接件背对所述止退件的端部连接有卡环，所述卡环可拆卸的套设在所述瓶颈结构外并顶抵所述壶口结构的下端。
优选地，所述卡环包括多个扇环，多个所述扇环可围合拼接形成所述卡环。
优选地，所述转接件包括与多个所述扇环对应连接的径向转接部、与多个所述径向转接部对应连接的轴向转接部；多个所述扇环分别设在多个所述径向转接部背对所述轴向转接部的端部，所述轴向转接部与所述止退件可至少沿所述轴线方向固定连接。
优选地，所述连接件外设有密封件，所述密封件在所述连接件处于工作位置时密封所述连接件与所述连接口之间的缝隙。
优选地，所述连接件上设有压块；所述连接件处于工作位置时，所述压块将所述密封件压紧在所述压块与所述连接口之间。
优选地，所述压块具有颈缩部及位于所述颈缩部上方的周向扩展凸缘，所述密封件套设在所述颈缩部外并顶抵所述周向扩展凸缘的下端。
优选地，所述颈缩部的径向尺寸不大于所述连接口的口径，所述周向扩展凸缘的径向尺寸大于所述连接口的口径；
所述连接件处于工作位置时，所述颈缩部嵌入所述连接口中，所述周向扩展凸缘封堵所述连接口的外端面，所述密封件压紧在所述周向扩展凸缘和所述连接口内壁之间。
优选地，所述压块套设在所述连接件外；所述连接件在所述连接口中周向旋转时， 所述压块及所述密封件相对于所述连接口静止，所述压块及所述密封件不随所述连接件一起转动。
优选地，所述连接件的外壁设有位于所述压块上方的顶推台阶，所述顶推台阶顶抵在所述周向扩展凸缘的上端面。
当操作主机而带动连接件在筒体的连接口中沿轴线方向移动至工作位置之后，止退机构与筒体至少沿轴线方向固定，第一止退部与第二止退部配合以抑制连接件在连接口中朝背离筒体的方向移动。从而，借助止退机构，使连接件固定在连接口中，并被维持在工作位置，而不与连接口发生脱离。
并且，由于止退机构与筒体可拆卸连接。因此，当需要主机与其他型号的筒体适配时，只需将止退机构从当前的筒体上拆卸，再将其连接至需要更换的筒体上，即可对连接件在另一个筒体的连接口中的位置进行固定，从而实现主机与不同型号的筒体的适配安装。如此，一个主机可适配多种不同型号的筒体，提高了主机的通用性。
参照后文的说明和附图，详细公开了本发明的特定实施例，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施例在范围上并不因而受到限制。
针对一种实施例描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施例中使用，与其它实施例中的特征相组合，或替代其它实施例中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在此描述的附图仅用于解释目的，而不意图以任何方式来限制本发明公开的范围。另外，图中的各部件的形状和比例尺寸等仅为示意性的，用于帮助对本发明的理解，并不是具体限定本发明各部件的形状和比例尺寸。本领域的技术人员在本发明的教导下，可以根据具体情况选择各种可能的形状和比例尺寸来实施本发明。在附图中：
图1为本发明实施例的喷雾器的结构示意图；
图2为图1所示的喷雾器中的筒体的构示意图；
图3为图1所示的喷雾器中的连接件的构示意图；
图4为图1所示的喷雾器中的止退机构的构示意图；
图5为图4所示的止退机构的俯视结构示意图；
图6为图4所示的止退机构中的止退件的结构示意图；
图7为止退机构与连接件的装配结构示意图；
图8为图1所示的喷雾器中的压块与密封件的装配分解结构示意图。
具体实施方式
为了使本技术领域的人员更好地理解本发明中的技术方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
需要说明的是，当元件被称为“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施例。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
在本说明书中，将本发明实施例的喷雾器在正常使用状态下，背对地面的方向定义为“前”，将与之相反，或者，将指向或面对地面的方向定义为“后”。更具体的，将图1中所示意的向上的方向定义为“上”，将图1中所示意的向下的方向定义为“下”。
值得注意的是，本说明书中的对各方向定义，只是为了说明本发明技术方案的方便，并不限定本发明实施例的喷雾器在包括但不限定于使用、测试、运输和制造等等其他可能导致喷雾器方位发生颠倒或者位置发生变换的场景中的方向。
如图1所示，本发明实施例的喷雾器主要包括两大部分，即主机1和筒体2。两者通过连接件3实现可拆卸连接。
主机1可包括壳体101、收容在壳体101内用于产生高压气体的气体产生机构。连接件3可配接在气体产生机构的出气端。如图3所示，连接件3大致呈空心杆状结构，其具有导气通道302，连通气体产生机构的出气端与筒体2，用于将气体产生机构产生的高压气体导入筒体2，以对筒体2内的液体施加压力，使液体经由与筒体2连接的喷管或喷头喷出。
在一种可行的实施例中，气体产生机构可以为手工操作式结构，包括手动气泵，手动气泵的出气口即形成气体产生机构的出气端，手动气泵的活塞杆可连接操作件。使用时，操作人员捏合操作件驱动活塞在活塞筒中移动，产生高压气体。
当然，气体产生机构不限于上述手动操作式结构，还可以为电动驱动式结构。具体的，如图1所示，电动驱动式结构可包括电机102、被电机102旋转驱动的气泵103(电动气泵)，电动气泵103的出气口形成气体产生机构的出气端。出气端可连接有转接弯头108，连接件3的上端可设有插接头303，插接头303可插拔的插入转接弯头108中，籍此实现电动气泵103的出气端与筒体2的连通。此外，电机102与气泵103之间可设有减速机构104(例如不同直径的齿轮)和曲柄滑块机构105，从而将电机102的高速旋转运动转化为气泵103活塞的低速直线往复运动。
进一步地，壳体101上可设有电池包接合部109，用于可拆卸连接电池包。壳体101内可收容有控制模块，控制模块与电机102、电池包接合部109以及设在壳体101上的微动开关电连接。控制模块可基于微动开关的触发而产生控制电机102启停的启闭信号，并将启闭信号加载至驱动信息中传输给电机102，以控制电机102运转或停转。
此外，主机1内可设有与控制模块连接用于检测筒体2内气体压力的压力传感器106，压力传感器106的检测通道107可通过转接弯头108与筒体2的内部空间连通。当压力传感器106检测到筒体2内气压超过设定的上限阈值时，控制模块控制电机102停转，停止继续向筒体2中增压。开启喷雾工作一定时间后，筒体2内压力降低。当压力传感器106检测到筒体2内气压降低至设定的下限阈值时，控制模块控制电机102运转，向筒体2中补压。
筒体2可设有泄压阀，泄压阀可直接设于筒体2的侧壁，或者设于喷管上。当完成喷雾作业后，筒体2内存在残余压力，可通过手动操作泄压阀卸压。以避免后续拆卸主机1与筒体2时，由于筒体2内存在高压而导致两者之间发生进射事故。
连接件3一方面起到连通气体产生机构与筒体2的作用，另一方面用于实现主机1与筒体2的连接。连接件3的一端(上端)与气体产生机构的出气端连接，另一端(下端)延伸至壳体101的外部，用于与筒体2连接。
筒体2设有连接口201，用于供连接件3穿设。连接口201具有轴线方向，如图1和图2所示，连接口201可设在筒体2的上端，轴线方向可以为图1和图2所示意的上下方向。连接件3的外径不大于连接口201的口径，从而连接件3可活动穿设在连接口201中，并能在连接口201中沿轴线方向上下移动，也可以在连接口201中围绕轴线方向转动。
在本实施例中，连接件3可与主机1沿周向和轴向固定。并且，连接件3的下端可延伸至主机1的外侧。这样，操作人员只需握持主机1的壳体101，并对壳体101施加旋转作用力或者按压力，连接件3即可被带动在连接口201中旋转或轴向移动。
为使一个主机1能够与多种不同型号的筒体2相适配，使得一个主机1能够适用于多个筒体2，本发明实施例借助外置的止退机构10来实现主机1与筒体2的可拆卸连接。在本实施例中，所谓筒体2的型号，可以包括筒体2的规格(包括体积、高度尺寸、最大径向尺寸等)、容量、以及连接口201的口径。通常，不同型号的筒体2所配置的连接口201的口径是不同的。不过，与同一个主机1相适配的多种不同型号的筒体2，其连接口201的口径均不大于连接件3的外径。籍此，方能使得连接件3在这些筒体2的连接口201中移动或转动。
如图3和图4所示，连接件3的外壁可设有第一止退部301，止退机构10的一端(如图1所示意的下端)与筒体2可拆卸连接，另一端(如图1所示意的上端)可设有与第一止退部301可配合的第二止退部1002。止退机构10与筒体2连接时，其与筒体2至少沿轴线方向(如图1所示意的上下方向)固定。连接件3在连接口201中处于工作位置时，第一止退部301与第二止退部1002配合以抑制连接件3在连接口201中朝背离筒体2的方向移动。
这样，当操作主机1而带动连接件3在筒体2的连接口201中沿轴线方向移动至工作位置之后，止退机构10与筒体2至少沿轴线方向固定，第一止退部301与第二止退部1002配合以抑制连接件3在连接口201中朝背离筒体2的方向移动。从而，借助止退机构10，使连接件3固定在连接口201中，并被维持在工作位置，而不与连接口201发生脱离。
并且，由于止退机构10与筒体2可拆卸连接。因此，当需要主机1与其他型号的筒体2适配时，只需将止退机构10从当前的筒体2上拆卸，再将其连接至需要更换的筒体2上，即可对连接件3在另一个筒体2的连接口201中的位置进行固定，从而实现主机1与不同型号的筒体2的适配安装。如此，一个主机1可适配多种不同型号的筒体2，提高了主机1的通用性。
当连接件3在连接口201中的轴向移动时，连接件3可同时相对于止退机构10移动，则可带动设在连接件3上的第一止退部301和设在止退机构10上的第二止退部1002相互运动，实现配合。当连接件3在连接口201中移动至处于工作位置之后，第一止退部301和第二止退部1002的配合可抑制连接件3向上的移动。
结合图4和图7所示，在本实施例中，止退机构10可包括与筒体2可拆卸连接的转接件4以及与转接件4连接的止退件5。其中，第二止退部1002设在止退件5上。进一步地，止退件5可连接有止退环7，第二止退部1002可设在止退环7的内壁。
转接件4可借助筒体2所具有的特殊构造，实现与筒体2的连接。具体的，如图1和图2所示，筒体2可包括筒身202、设在筒身202上并沿径向向内颈缩的瓶颈结构203、设在瓶颈结构203上并沿径向向外扩展的壶口结构204；连接口201可形成在瓶颈结构203中。如图5所示，转接件4背对止退件5的端部可连接有卡环6，卡环6可拆卸的套设在瓶颈结构203外并顶抵壶口结构204的下端。这样，当卡环6套设在瓶颈结构203外时，可由筒身202和壶口结构204对其进行轴向限位。
为实现转接件4与筒体2的可拆卸连接，卡环6可包括多个扇环601，多个扇环601可围合拼接形成卡环6。为避免转接件4与壶口结构204之间发生干涉，转接件4可包括与多个扇环601对应连接的径向转接部401、与多个径向转接部401对应连接的轴向转接部402，轴向转接部402与止退件5至少沿轴线方向固定连接。
如图4和图7所示，转接件4大致可呈转折状或“L”状，径向转接部401径向延伸，其外端可位于壶口结构204边缘的外侧，轴向转接部402可设在径向转接部401的外端。优选地，径向转接部401和轴向转接部402一体构造，具体可以为径向转接部401的外端向上弯折形成轴向转接部402。从而，可避免转接件4与壶口结构204的干涉。
扇环601的数量可根据实际情况进行设定，每个扇环601的圆心角可以为360/n°，n为扇环601的数量。这样，多个扇环601拼合时，可形成一个完整的呈圆环形构造的卡环6。转接件4的数量与扇环601的数量相等，并且多个扇环601分别设在多个径向转接部401背对轴向转接部402的端部即内端。这样，多个转接件4卡擎着多个扇环601围合在筒体2的瓶颈结构203外，限定出卡环6。而将多个扇环601从筒体2的瓶颈结构203外拆分，即可实现转接件4与筒体2的拆卸。
结合图6所示，止退件5可呈杆状，其数量同样可以为多个，并与多个轴向转接部402的数量对应相等。多个止退件5连接止退环7的外壁，并且多个止退件5沿周向均匀排布。止退件5与轴向转接部402至少沿轴线方向固定，从而，转接件4可沿轴向被筒体2和止退件5固定，进而转接件4可作为轴向固定件，对连接件3实现轴向固定。
当然，止退件5还可以呈板状，呈板状的止退件5上可设有开口，止退环7可设在该开口中。或者，在止退件5呈板状，且止退件5上设有开口的基础上，可以不必在开口中设置止退环7，而是将第二止退部1002直接设在开口的内壁上。
为使多个扇环601能够自由的在合围状态和拆分状态之间进行切换，转接件4可与止退件5可拆卸连接，或者，转接件4可相对于止退件5向外转动。
如图6所示，在一种可行的实施例中，转接件4与止退件5可拆卸连接的方式可以为，止退件5中设有用于供轴向转接部402穿设的安装孔502，以及与安装孔502接通的第一销孔。安装孔502可以为贯通止退件5上下表面的通孔，第一销孔可以为贯通止退件5外壁面的盲孔，并且与安装孔502对接连通。第一销孔中以可插拔的方式穿设销轴503，销轴503在轴向转接部402穿设在安装孔502中顶紧轴向转接部402的侧壁，从而使轴向转接部402固定在安装孔502中。而将销轴503从第一销孔中拔出，轴向转接部402即可从安装孔502中抽出，实现转接件4与止退件5的拆卸。
在本实施例中，安装孔502进一步可朝向外侧开口。这样，轴向转接部402可经外侧开口进入安装孔502中，并可在安装孔502中水平移动，以此适应不同筒体2所具有的不同外径的瓶颈结构203。
或者，在上述实施例的基础上，轴向转接部402中可设有第二销孔，第二销孔可以为贯穿轴向转接部402左右侧壁的通孔。当轴向转接部402穿设在安装孔502时，第二销孔与第一销孔对应，销轴503可插拔的穿设在第一销孔和第二销孔中。这样，将轴向转接部402插入安装孔502中，使第二销孔对准第一销孔，随后再在第二销孔和第一销孔中插入销轴503，即可实现止退件5与转接件4的装配。而将销轴503从第二销孔和第一销孔中拔出，轴向转接部402即可从安装孔502中抽出，实现两者的拆卸。
如图6所示，销轴503可以为U形销，具有两个相对平行的销叉。第一销孔、第二销孔的数量可分别对应为两个，销轴503的两个销叉可分别穿设在两个第一销孔、第二销孔中。
当需要更换与主机1连接的筒体2时，可将销轴503拔出，转接件4与止退件5实现拆卸分离。随后，即可将移出转接件4，使连接在径向转接部401内端的扇环601与筒体2的瓶颈结构203脱离，实现转接件4与筒体2的拆卸。
在另一个实施例中，止退件5与转接件4转动连接的方式可以为，止退件5的外端设有豁口，轴向转接部402的上端嵌入豁口中，并通过转轴与止退件5的外端连接。向外拨动转接件4，转接件4可围绕转轴转动，从而使得连接在其端部的扇环601远离筒体2的瓶颈结构203，实现卡环6与瓶颈结构203的拆卸。
如图3和图4所示，在一种可行的实施例中，第一止退部301可以为形成在连接件3外壁的外螺纹，第二止退部1002可以为形成在止退环7内壁的内螺纹。这样，连接件 3可通过周向旋转，借助螺纹之间的旋合运动，使连接件3在转动的同时，在连接口201中同步实现轴向移动。
当需要将主机1与筒体2连接时，操作人员可握持主机1的壳体101，并对壳体101施加旋转作用力，带动连接件3沿上扣方向旋转。连接件3在旋转的过程中，借助螺纹的旋合作用，其在连接口201中沿轴向向下移动。至连接件3轴向移动到位即到达工作位置后，停止旋转。此时，借助连接件3与止退机构10的螺纹啮合作用，对连接件3进行轴向限位或固定，使连接件3维持在工作位置。
当需要更换筒体2时，沿反向旋转壳体101，使连接件3沿卸扣方向旋转。相应的，连接件3在旋转过程中，其在连接口201中沿轴向向上移动。至连接件3与连接口201完全脱扣时，再将止退机构10从筒体2上拆卸。随后，将止退机构10连接至需要更换的筒体2上。再执行上述的上扣步骤，即完成主机1与另一个筒体2的装配。
由于细牙螺纹的自锁性能好，抗振动防松的能力较佳。因此，在止退部为螺纹的实施例中，内外螺纹优选为细牙螺纹，以此降低连接件3处于工作位置时出现松动而从连接口201中脱出的风险。
上述即为止退部采用螺纹的实施例，在该实施例中，连接件3的轴向移动，可通过连接件3旋转，并借助螺纹旋合来实现。当然，止退部不限于采用螺纹的实施例，在另一种可行的实施例中，第一止退部301可以为形成在连接件3外壁并倾斜向下延伸的第一止退齿，第二止退部1002可以为形成在止退环7内壁并倾斜向下延伸的第二止退齿。
第一止退齿相对于第二止退齿可发生向下的移动，而第一止退齿和第二止退齿互相啮合或咬合，可限制第一止退齿相对于第二止退齿的向上移动。如此，连接件3可相对于止退机构10向下移动，实现在连接口201中的轴向向下移动。
止退部采用止退齿结构，使得连接件3相对于止退机构10只能单向移动，即连接件3只能向下移动，而不能向上移动。为使两个止退齿能够实现可拆卸，限定第二止退齿的止退环7可采用可拆卸的拼接结构。具体的，止退环7可包括多个拼接环体，每个拼接环体的内壁均设有止退齿，多个拼接环体可以拼合在一起形成止退环7。多个拼接环体可通过周向固定部件例如抱箍而被维持在拼合状态。
当需要将主机1与筒体2连接时，操作人员可握持主机1的壳体101，并对壳体101施加向下的按压力。连接件3可穿过止退环7向下移动。至连接件3轴向移动到位即到达工作位置后，停止按压。此时，借助第一止退齿和第二止退齿的啮合或咬合作用，对连接件3进行轴向限位或固定，使连接件3维持在工作位置。
当需要更换筒体2时，解除止退环7的周向固定部件，将止退环7拆开。此时，第一止退齿失去第二止退齿对其的咬合作用，也就是连接件3失去止退机构10对其的轴线限位或固定作用，则连接件3可以沿轴向向上从连接口201中抽出。随后，可将止退机构10从筒体2上拆卸。再将止退机构10连接至需要更换的筒体2上。再执行上述的按压步骤，即完成主机1与另一个筒体2的装配。
承接上文描述，在本发明实施例中，一个主机1适配多个不同筒体2要求连接件3的外径不大于筒体2连接口201的口径。因此，连接件3在连接口201中完成定位后，连接件3与连接口201之间将存在缝隙，而喷雾器的工作原理要求筒体2具有较佳的气密性。因此，为解决连接件3与连接口201的接合处密封的问题，连接件3外设有密封件8，密封件8在连接件3处于工作位置时密封连接件3与连接口201之间的缝隙。
如图8所示，密封件8呈圈状，其由柔弹性的密封材料(例如橡胶)制成。为了对密封件8进行限位，使其能沿周向均匀地被压紧变形，可采用压块9对其进行限位。具体的，压块9呈环状或圈状，可套设在连接件3外。当连接件3处于工作位置时，压块9可将密封件8压紧在压块9与连接口201之间。
进一步地，压块9大致呈倒置的“凸”字形结构，其可包括颈缩部901及位于颈缩部901上方的周向扩展凸缘902，密封件8可套设在颈缩部901外并顶抵周向扩展凸缘902的下端。周向扩展凸缘902与密封件8接触的表面形成止挡面或者限位面，从而密封件8与周向扩展凸缘902为面接触。当连接件3在连接口201中向下移动至周向扩展凸缘902接触连接口201时，压块9被向下压缩，进而止挡面或者限位面压缩密封件8，可实现密封件8的均匀压紧变形。
同样的，压块9也可由柔弹性的密封材料制成。周向扩展凸缘902的径向尺寸大于连接口201的口径，而颈缩部901的径向尺寸不大于连接口201的口径，优选略大于连接口201的口径。这样，当连接件3在连接口201中出工作位置时，颈缩部901嵌入连接口201中形成过盈配合，周向扩展凸缘902封堵连接口201的外端面，密封件8压紧在周向扩展凸缘902和连接口201内壁之间，从而对连接口201形成稳定的密封。
在止退部采用螺纹的实施例中，连接件3通过旋转运动实现在连接口201中的轴向向下移动。在一个实施例中，当连接件3在连接口201中发生周向旋转时，压块9及密封件8相对于连接口201静止。即压块9和密封件8并不随连接件3一起转动。这样，可避免密封件8随连接件3一起旋转时与连接口201之间发生摩擦，进而避免密封件8被磨损导致密封效果不佳、寿命下降的问题。
其中，使压块9及密封件8不随连接件3一起转动的实现方式可以为，压块9的颈缩部901可实现嵌入连接口201中，两者过盈配合。压块9设有穿设孔903，连接件3穿设在其中。并且，连接口201与颈缩部901之间的摩擦力，大于连接件3与穿设孔903之间的摩擦力。这样，连接件3在旋转的过程对压块9施加的周向摩擦力，被连接口201对颈缩部901施加的摩擦力克服。从而，压块9保持静止而不随连接件3一起转动。
进一步地，为实现对压块9的限位，如图3所示，连接件3的外壁可设有位于压块9上方的顶推台阶304，顶推台阶304顶抵在周向扩展凸缘902的上端面。在一个实施例中，顶推台阶304可以为连接件3自身结构的一部分，其可以为形成在连接件3外壁的台肩。具体可以为，连接件3呈分段设置，其包括外径较大的上段和外径较小的下段，压块9可套设在下段上，上段超出下段的部分即形成所述顶推台阶304。或者，在另一个实施例中，顶推台阶304可以为额外设置的单独部件，具体可以为固定套设在连接件3外的套筒结构。
实际实施时，通过旋转或按压壳体101，带动连接件3在连接口201中向下移动，顶推台阶304随之一起向下移动。至顶推台阶304的下端顶抵周向扩展凸缘902的上端面，连接件3继续向下移动，顶推台阶304对周向扩展凸缘902施加的顶固力逐渐增大，直至连接件3移动至工作位置，颈缩部901被向下推而压入连接口201中，密封件8被紧紧的压在周向扩展凸缘902与连接口201之间，实现对连接件3与连接口201之间缝隙的密封。
需要说明的是，在本发明的描述中，术语“第一”、“第二”等仅用于描述目的和区别类似的对象，两者之间并不存在先后顺序，也不能理解为指示或暗示相对重要性。此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。
以上所述仅为本发明的几个实施例，本领域的技术人员依据申请文件公开的内容，可以对本发明实施例进行各种改动或变型而不脱离本发明的精神和范围。

Claims (9)

  1. 一种喷雾器，其特征在于，包括：
    筒体，设有连接口，所述连接口具有轴线方向；
    主机，包括气体产生机构；所述气体产生机构的出气端配接有能插入所述连接口中并能在所述连接口中沿所述轴线方向移动的连接件，所述连接件包括连通所述气体产生机构的出气端与所述筒体的导气通道、设于其外壁的第一止退部；
    止退机构，其一端与所述筒体可拆卸连接，另一端设有与所述第一止退部配合的第二止退部；所述止退机构与所述筒体连接时，所述止退机构与所述筒体至少沿所述轴线方向固定；所述连接件在所述连接口中处于工作位置时，所述第一止退部与第二止退部配合以抑制所述连接件在所述连接口中朝背离所述筒体的方向移动；
    所述止退机构包括与所述筒体可拆卸连接的转接件、与所述转接件连接的止退件；所述第一止退部设在所述止退件上，所述筒体包括筒身、设在所述筒身上并沿径向向内颈缩的瓶颈结构、设在所述瓶颈结构上并沿径向向外扩展的壶口结构；所述连接口形成在所述瓶颈结构中，所述转接件背对所述止退件的端部连接有卡环，所述卡环可拆卸的套设在所述瓶颈结构外并顶抵所述壶口结构的下端；
    所述连接件外设有密封件，所述密封件在所述连接件处于工作位置时密封所述连接件与所述连接口之间的缝隙。
  2. 如权利要求1所述的喷雾器，其特征在于，所述止退件连接有止退环，所述第一止退部设在所述止退环的内壁；
    所述第一止退部为形成在所述连接件外壁的外螺纹，所述第二止退部为形成在所述止退环内壁的内螺纹；或者，
    所述第一止退部为形成在所述连接件外壁并倾斜向下延伸的第一止退齿，所述第二止退部为形成在所述止退环内壁并倾斜向下延伸的第二止退齿。
  3. 如权利要求1所述的喷雾器，其特征在于，所述卡环包括多个扇环，多个所述扇环可围合拼接形成所述卡环。
  4. 如权利要求3所述的喷雾器，其特征在于，所述转接件包括与多个所述扇环对应连接的径向转接部、与多个所述径向转接部对应连接的轴向转接部；多个所述扇环分 别设在多个所述径向转接部背对所述轴向转接部的端部，所述轴向转接部与所述止退件可至少沿所述轴线方向固定连接。
  5. 如权利要求1所述的喷雾器，其特征在于，所述连接件上设有压块；所述连接件处于工作位置时，所述压块将所述密封件压紧在所述压块与所述连接口之间。
  6. 如权利要求5所述的喷雾器，其特征在于，所述压块具有颈缩部及位于所述颈缩部上方的周向扩展凸缘，所述密封件套设在所述颈缩部外并顶抵所述周向扩展凸缘的下端。
  7. 如权利要求6所述的喷雾器，其特征在于，所述颈缩部的径向尺寸不大于所述连接口的口径，所述周向扩展凸缘的径向尺寸大于所述连接口的口径；
    所述连接件处于工作位置时，所述颈缩部嵌入所述连接口中，所述周向扩展凸缘封堵所述连接口的外端面，所述密封件压紧在所述周向扩展凸缘和所述连接口内壁之间。
  8. 如权利要求6所述的喷雾器，其特征在于，所述压块套设在所述连接件外；所述连接件在所述连接口中周向旋转时，所述压块及所述密封件相对于所述连接口静止，所述压块及所述密封件不随所述连接件一起转动。
  9. 如权利要求8所述的喷雾器，其特征在于，所述连接件的外壁设有位于所述压块上方的顶推台阶，所述顶推台阶顶抵在所述周向扩展凸缘的上端面。
PCT/CN2020/125046 2019-12-13 2020-10-30 喷雾器 WO2021114942A1 (zh)

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CN201922247222.4U CN211707144U (zh) 2019-12-13 2019-12-13 喷雾器
CN201911281575.4 2019-12-13
CN201911281575.4A CN112974027A (zh) 2019-12-13 2019-12-13 喷雾器
CN201922247222.4 2019-12-13

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211695A1 (en) * 1985-08-23 1987-02-25 Colin Edmund Etherton Improvements in paint spraying equipment
CN1231259A (zh) * 1998-02-25 1999-10-13 艾里希普费弗工程师有限公司 介质分配器
US20030085302A1 (en) * 2001-10-11 2003-05-08 L'oreal Device for spraying a substance onto a medium
CN104203426A (zh) * 2012-03-19 2014-12-10 娜敏芮维皮利业有限责任公司 设有可拆除的盖子的液体输配设备
CN211707144U (zh) * 2019-12-13 2020-10-20 苏州宝时得电动工具有限公司 喷雾器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211695A1 (en) * 1985-08-23 1987-02-25 Colin Edmund Etherton Improvements in paint spraying equipment
CN1231259A (zh) * 1998-02-25 1999-10-13 艾里希普费弗工程师有限公司 介质分配器
US20030085302A1 (en) * 2001-10-11 2003-05-08 L'oreal Device for spraying a substance onto a medium
CN104203426A (zh) * 2012-03-19 2014-12-10 娜敏芮维皮利业有限责任公司 设有可拆除的盖子的液体输配设备
CN211707144U (zh) * 2019-12-13 2020-10-20 苏州宝时得电动工具有限公司 喷雾器

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