CN115178394B

CN115178394B - Cleanable foaming gun

Info

Publication number: CN115178394B
Application number: CN202211018902.9A
Authority: CN
Inventors: 程永福
Original assignee: Yongkang Jiawanfu Tools Co ltd
Current assignee: Yongkang Jiawanfu Tools Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-06-23
Anticipated expiration: 2042-08-24
Also published as: CN115178394A

Abstract

The invention relates to the field of foaming guns, and discloses a cleanable foaming gun which comprises a shell, a foaming pipe and a trigger, wherein the foaming pipe is arranged in the shell, the trigger drives the foaming pipe to move, a cleaning device for cleaning is arranged in the foaming pipe, the cleaning device comprises a cleaning push plate arranged on the foaming pipe and a power component which is matched with the trigger and can be used for driving the cleaning push plate to move, the trigger is matched with the mode switching component, when the mode switching component is not switched, the trigger is pressed to only drive the foaming pipe to move, foaming agent can be injected along the foaming pipe to be arranged, when the mode switching component is switched, the trigger is pressed to only drive the cleaning push plate to move, the foaming pipe is not moved, the cleaning push plate moves and can drive the foaming agent in the foaming pipe to be discharged out of the foaming pipe to be arranged, and the foaming gun can be used for working.

Description

Cleanable foaming gun

Technical Field

The invention relates to the field of foaming guns, in particular to a cleanable foaming gun.

Background

The foaming agent is used in the building field, the foaming agent is generally arranged in the foaming agent tank, the foaming agent tank is generally matched with the foaming gun, the foaming gun can often block the foaming pipe of the foaming gun in the using process, when the foaming agent blocks the foaming pipe, the foaming pipe needs to be replaced or dredged, for example, in a foaming gun with the application number of CN202021417154.8, the foaming pipe of the foaming gun is detachably connected and passes through, the detached foaming pipe is divided into a first pipe body and a second pipe body, but the foaming gun is difficult to clean the first pipe body under the condition of being provided with the foaming agent tank, the second pipe body stretches into the second pipe body to be dredged through a steel wire brush when the second pipe body is cleaned, the first pipe body is difficult to dredge due to the fact that the first pipe body is in contact with the foaming pipe, and when the foaming pipe is dredged through the steel wire brush or a hard rod, the dredging is laborious and the working efficiency is low, and resources are easy to waste if the use cost of the foaming pipe is directly replaced.

Disclosure of Invention

The invention provides a cleanable foaming gun, which aims at the defects that the dredging of a foaming pipe by a hard object is troublesome and the efficiency is low in the prior art.

In order to solve the technical problems, the invention is solved by the following technical scheme: the utility model provides a but clean foaming rifle, including the casing, set up in the casing foaming pipe and drive the trigger that the foaming pipe removed, be provided with the cleaning device who is used for the clearance in the foaming pipe, cleaning device is including setting up in the clean push pedal of foaming pipe and setting up and can be used to drive the power component that the clean push pedal removed with the trigger cooperation, the trigger cooperation is provided with the mode switching assembly, when the mode switching assembly does not switch, press the trigger and only drive the foaming pipe removal setting, the foaming agent can be followed the foaming pipe injection setting, after the mode switching assembly switches, press the trigger and only drive clean push pedal removal setting, and the foaming pipe does not remove, clean push pedal removal can drive the foaming agent in the foaming pipe to discharge the foaming pipe setting.

By adopting the scheme, when the cleaning push plate moves in the foaming pipe under the action of the power component, the foaming agent in the foaming pipe can be driven to be discharged out of the foaming pipe, so that the foaming agent is prevented from being blocked in the foaming pipe, the working mode of the foaming gun for spraying the foaming agent and the cleaning mode can be switched and set by the mode switching component, so that the foaming gun can be used for working, and after the working is finished, the cleaning mode can be switched by the mode switching component, so that the foaming agent in the foaming pipe is efficiently cleaned.

Preferably, the power assembly comprises a first piston pipe connected to the shell, a first piston piece which is in butt joint with the trigger and is connected to the first piston pipe in a sliding manner, a second piston pipe connected to the foaming pipe, a second piston piece which is connected to the second piston pipe in a sliding manner and pushes the cleaning push plate, and an air pipe for connecting the first piston pipe with the second piston pipe, when the trigger is pressed, the first piston piece moves to drive air in the first piston pipe to enter the second piston pipe through the air pipe and push the second piston piece to move, and when the second piston piece moves to drive the cleaning push plate to move.

By adopting the scheme, when the trigger is pressed, the piston rod I moves towards the bottom surface direction of the inner side of the piston tube II, and gas in the piston tube I is compressed into the piston tube II through the gas pipe, so that the piston piece in the piston tube II is pushed to push the cleaning push plate to move, the cleaning push plate can drive the foaming agent in the tube section I to push into the tube section II, and the foaming agent in the tube section II is discharged from the opening of the tube section II far away from one end of the tube section I.

Preferably, a return spring for returning the first piston member or the second piston member is arranged in each of the first piston tube and the second piston tube.

By adopting the scheme, the return spring can drive the first piston piece and the second piston piece to return.

Preferably, the trigger pin joint is in the casing, and the mode switching subassembly is including setting up in the butt section of foaming pipe and relative foaming pipe pivoted carousel, orders about the trigger and rotates the setting of promoting the carousel around its pin joint department, and the carousel has been seted up and has been dodged the groove, when the butt section did not dodge the groove relatively and the trigger promotes the carousel and remove, the carousel promotes the foaming pipe through with the butt section butt and remove, when rotating the carousel and order about the butt section and dodge the groove relatively and the trigger promotes the carousel and remove, the carousel does not order about the foaming pipe to remove the setting.

By adopting the scheme, when the turntable rotates to drive the abutting section to be opposite to the avoidance groove, when the abutting section is not opposite to the avoidance groove and the trigger pushes the abutting plate and the turntable to move, the turntable is in abutting connection with the abutting section to push the abutting section and the pipe section of the abutting section to move towards the pushing section, so that the pushing section is driven to press a liquid spraying port of the foaming agent tank, foaming agent in the foaming agent tank is sprayed out through the foaming pipe under the action of the pressure of the tank body, when the avoidance groove is opposite to the abutting section, the trigger is pressed, the trigger is driven to push the abutting plate and the turntable to move towards the pushing section, but the pipe section is not arranged in moving along the axial direction, and the pushing section is not used for pressing the foaming agent tank, so that the foaming agent in the foaming agent tank can not be sprayed out.

Preferably, the turntable is provided with an elastic reset piece for resetting the turntable in an abutting manner.

By adopting the scheme, the elastic resetting piece is mainly used for resetting the turntable.

Preferably, the outer ring of the turntable is provided with a gear ring, the switching device further comprises a poking gear meshed with the turntable, and the poking gear part extends out of the outer side of the shell.

By adopting the scheme, the gear ring structure is convenient for driving the rotation toggle gear, so that the turntable is driven to rotate.

Preferably, the shell is slidably provided with a bearing plate matched with the rotary table, the rotary table is provided with an arc-shaped guide groove, a first limit screw is arranged in the arc-shaped guide groove, and when the rotary table rotates, the first limit screw is respectively positioned at two ends of the arc-shaped guide groove, and the abutting section and the avoiding groove are respectively in opposite and non-opposite states.

By adopting the scheme, the arc-shaped guide groove and the limit screw can limit the rotation angle of the turntable by matching, and can also play a role in limiting the separation of the turntable and the resisting plate.

Preferably, the abutting plate is provided with an air path switching assembly, the air path switching assembly comprises a rack which is connected to the abutting plate in a sliding manner and meshed with the rotary table, a first pipe joint which is arranged on the rack, and a second pipe joint which is arranged on the abutting plate, wherein the first pipe joint is connected with the first piston pipe, the second pipe joint is connected with the second piston pipe, when the rotary table rotates to drive the rack to move, the first pipe joint and the second pipe joint are driven to be arranged relatively or not relatively, when the rotary table rotates to drive the rack to move, the first pipe joint and the second pipe joint are relatively arranged, and meanwhile, the first abutting section is arranged relatively to the avoidance hole, the first piston part can drive the second piston rod to move, when the first pipe joint and the second pipe joint are not relatively arranged, the first abutting section is not relatively arranged to the avoidance hole, and the first piston part can not drive the second piston rod to move.

By adopting the scheme, the toggle gear can rotate to drive the rack to move through the turntable, the rack can drive the gas in the first piston tube to be pressed into the second piston tube, when the first pipe joint is opposite to the pipe joint, the piston piece can drive the gas in the first piston tube to be pressed into the second piston tube, and when the first pipe joint is not opposite to the pipe joint, the piston piece can not be moved to inflate the second piston tube.

Preferably, the opposite ends of the first pipe joint or/and the second pipe joint are sleeved with sealing sleeves for sealing.

By adopting the scheme, the sealing sleeve can increase the tightness between the first pipe joint and the second pipe joint.

Preferably, the foaming pipe comprises a first pipe section and a second pipe section which is detachably connected with the first pipe section, the cleaning push plate is arranged in the first pipe section, the first pipe section is in butt joint with a liquid spraying port of the foaming agent tank, when the first pipe section moves towards the direction of the foaming agent tank, the foaming agent in the foaming agent tank can be sprayed out of the foaming pipe through the liquid spraying port, an inner hole of the first pipe section is rectangular, and the cleaning push plate is in a long strip shape matched with the inner wall of the first pipe section.

By adopting the scheme, the cleaning push plate is in a long strip shape matched with the first pipe section, so that the foaming agent in the first pipe section can be cleaned conveniently.

The invention has the remarkable technical effects due to the adoption of the technical scheme: the trigger is pressed, the trigger can drive the first piston part to do the piston motion relatively to the first piston pipe, gas in the piston pipe can enter the second piston pipe through the gas pipe and the gas path switching device, and the second piston part is pushed to drive the cleaning push plate to move and set, meanwhile, the pushing section does not move towards the direction of the foaming agent tank because the pushing section is opposite to the avoiding groove, so that the foaming agent is not sprayed into the second piston pipe, the cleaning push plate can clear the foaming agent in the first pipe section out of the first pipe section, the cleaning of the first pipe section is guaranteed, when the rack is in the other limit moving position, the first pipe joint and the second pipe joint are not opposite and are both in communication with the outside air, at the moment, the pushing section is not opposite to the avoiding groove, the pushing section is in contact with the rotating disc, when the trigger is pulled, the rotating disc pushes the pushing section to move and set, at the moment, the pushing section can drive the foaming agent to be sprayed out from the foaming agent tank of the foaming gun tank, and the foaming agent can not be sprayed out from the foaming agent tank when the foaming agent is not interfered by the foaming agent when the foaming agent is sprayed out of the foaming agent tank when the foaming agent is not applied to the foaming agent.

Drawings

FIG. 1 is a schematic view of the exterior structure of a cleanable foaming gun;

FIG. 2 is a schematic view of the internal structure of a cleanable foaming gun;

FIG. 3 is a diagram of the tracheal connectivity of the airway switching device;

FIG. 4 is a sectional view of a cleanable foaming gun assembly;

FIG. 5 is a schematic diagram of a mode switch assembly;

FIG. 6 is a view of the abutment section not facing the relief groove;

fig. 7 is a state diagram showing the abutment section and the escape groove facing each other.

The names of the parts indicated by the numerical reference numerals in the above drawings are as follows: 1. a housing; 101. a threaded port; 2. a foaming tube; 201. a first pipe section; 202. a second pipe section; 203. a pushing section; 3. a trigger; 4. cleaning the push plate; 401. a rubber layer; 402. a sealing lip; 5. a power assembly; 501. a first piston tube; 502. a first piston member; 503. a piston tube II; 504. a second piston member; 505. a return spring; 506. sealing sleeve; 6. a mode switching component; 601. an abutment section; 602. a turntable; 603. a retaining plate; 604. an avoidance groove; 605. an elastic reset piece; 606. an arc-shaped guide groove; 607. a limit screw; 608. stirring the gear; 609. an avoidance window; 7. the gas circuit switching device; 701. a rack; 702. a first pipe joint; 703. a second pipe joint; 704. a straight guide slot.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples:

referring first to fig. 1 and 2, the cleanable foaming gun comprises a shell 1, a foaming tube 2 arranged in the shell 1 and a trigger 3 driving the foaming tube 2 to move, wherein the shell 1 is provided with a threaded opening 101 for screwing in a foaming agent tank, the foaming tube 2 comprises a first pipe section 201 and a second pipe section 202 detachably connected with the first pipe section 201, the second pipe section 202 and the first pipe section 201 are in threaded connection in the embodiment, the second pipe section 202 can be clamped or cancelled, a mounting hole which is in sliding fit with the foaming tube 2 is arranged on the bottom surface of the threaded opening 101, one end of the first pipe section 201 is in threaded connection with a pushing section 203 opposite to a liquid spraying opening of the foaming agent tank, the diameter of the pushing section 203 is larger than that of the first pipe section 201, the pushing section 203 is positioned in the threaded opening 101, the first pipe section 201 is slidably arranged in the mounting hole, the outer wall of the first pipe section 201 is square, the mounting hole is in an imitation shape in clearance fit with the outer side wall of the first pipe section 201, the trigger 3 is in a 7 shape, one end of the trigger is pivoted with the shell 1, the pushing section 203 is abutted to the liquid spraying port of the foaming agent tank, when the trigger 3 is pressed, the first pipe section 201 of the foaming pipe 2 can be driven to move towards the foaming agent tank, the pushing section 203 presses the liquid spraying port of the foaming agent tank, the foaming agent in the foaming agent tank is driven to spray from the liquid spraying port and directly enter the first pipe section 201, the foaming agent is sequentially sprayed along the first pipe section 201 and the second pipe section 202, and the foaming agent is sprayed to a construction position through the outlet of the second pipe section 202.

Referring to fig. 2 and 3, a cleaning device is disposed in a first pipe section 201 of the foam tube 2, the cleaning device includes a cleaning push plate 4 disposed in the first pipe section 201 and a power component 5 disposed in cooperation with a trigger 3 and used for driving the cleaning push plate 4 to move, in this embodiment, an inner hole of the first pipe section 201 is also in a rectangular shape, the cleaning push plate 4 is also in a rectangular shape, since a liquid spraying mouth portion of the foaming agent tank is disposed in the pushing section 203, the foaming agent of the foaming agent tank directly enters the first pipe section 203, so that cleaning in the pressing section 203 is not required and no blockage is formed in the pressing section 203, when the cleaning push plate 4 is not moved by the power component 5, the cleaning push plate 4 is disposed in a butt joint on one side of an inner wall of the first pipe section 201, a layer of rubber 401 is wrapped outside the cleaning push plate 4, a ring of sealing lip 402 is disposed on an outer ring of the rubber layer 401 toward one side of the connecting the power component 5, and when the cleaning push plate 4 receives the power component 5 to move, the sealing lip 402 is always abutted against one side of the pipe section one 201 where the power component 5 is arranged, so as to avoid leakage of foaming agent from a mounting hole of the piston pipe two 503, which is described below, the rubber layer 401 and the sealing lip 402 can be used for increasing tightness between the cleaning push plate 4 and the inner wall of the foaming pipe 2, and referring to fig. 3 and 4, the power component 5 comprises a piston pipe one 501 connected inside the housing 1, a piston part one 502 abutted against the trigger 3 and slidingly connected inside the piston pipe one 501, a piston pipe two 503 connected with the foaming pipe 2, a piston part two 504 slidingly connected inside the piston pipe two 503 and used for pushing the cleaning push plate 4, and a gas pipe used for connecting the piston pipe one 501 and the piston pipe two 503, in this embodiment, the pipe section one 201 is in threaded connection with two piston pipes two or more, but not limited to two or more, the pipe section one 201 is provided with a threaded hole identical to the inner wall, one end of a piston tube II 503 is in threaded connection with a threaded hole of a tube section I201, an inner hole of the piston tube II 503 is in a step shape and comprises a large diameter and a small diameter facing the tube section I201, the outer diameter of a piston tube II 504 is also in a step shape and comprises a large diameter which is connected with the large diameter of the piston tube II 503 in a sliding way and a small diameter which is connected with the small diameter of the piston tube II 503 in a sliding way, one end of the small diameter of the piston tube II 504 is in threaded connection with a push plate, a reset spring 505 is arranged in the piston tube II 503, two ends of the reset spring 505 in the piston tube II 503 are respectively in butt joint with a step surface of the piston tube II 504 and a step surface of the piston tube II 503, a sealing ring for sealing is sleeved at the large diameter of the piston tube II 504, one end of the large diameter of the piston tube II 504 is driven to move away from the foaming tube 2, the reset spring 505 is also arranged in the piston tube I501, two ends of the reset spring 505 are respectively in butt joint with the bottom surface of the piston tube I501 and one end of the piston tube I502, in this embodiment, the movable volume of the first piston member 502 in the first piston tube 501 is far greater than the movable volume of the second piston member 504 in all the second piston tubes 503, so that the compressible gas in the first piston member 502 is greater than the sum of the receivable gases in all the second piston tubes 503, when the trigger 3 is pressed, the first piston rod moves towards the bottom surface of the inner side of the second piston tube 503, the gas in the first piston tube 501 is compressed into the second piston tube 503 through the gas pipe, so as to push the piston member in the second piston tube 503 to push the cleaning push plate 4 to move, the cleaning push plate 4 can drive the foaming agent in the first tube section 201 to push into the second tube section 202, the foaming agent in the second tube section 202 is discharged from the opening of the end of the second tube section 202 away from the first tube section 201, and because the first tube section 201 and the second tube section 202 are detachably arranged, therefore, the second pipe section 202 can be detached to clean the second pipe section 202 alone, in this embodiment, the foam pipe 2 includes the first pipe section 201 and the second pipe section 202 having a certain angle with respect to the first pipe section 201, but the foam pipe 2 is not limited to two sections, the first pipe section 201 may be used as the foam pipe 2, and when the first pipe section 201 is only used, the cleaning push plate 4 moves to push the foaming agent in the first pipe section 201 out of the foam pipe 2 completely, and the second pipe section 202 provided in this embodiment is mainly used for guiding and outputting the foaming agent.

Referring to fig. 2 and 5, a mode switching assembly is provided in the housing, the mode switching assembly has two states, when in the state one, the trigger is operated to enable the foaming tube to move towards the direction of the foaming agent tank, so that the pushing section 203 which is originally abutted against the liquid spraying opening of the foaming agent tank applies force to the liquid spraying opening of the foaming agent tank, at the moment, the foaming agent in the foaming agent tank can be sprayed out from the position along the foaming tube, the cleaning push plate 4 is not arranged in a moving way, when in the state two, the trigger is operated to not drive the foaming tube to move, so that no force is applied to the liquid spraying opening of the foaming agent tank, the foaming agent tank does not spray the foaming agent, only the cleaning push plate 4 is driven to move, the cleaning push plate 4 moves to play a role of cleaning the first pipeline 201, the mode switching assembly 6 comprises an abutting section 601 which is arranged on the outer side of the first pipeline 201 in a protruding mode, a rotary table 602 which rotates relative to the first pipeline section 201, and a resisting plate 603 which is used for rotating and is matched in a rotating way, the abutting plate 603 is arranged in a sliding fit with the inner wall of the shell 1, the abutting plate 603 can slide along the length direction of the first pipe section 201, the abutting plate 603 is positioned on one side of the turntable 602 away from the foaming agent tank, the trigger 3 and the abutting plate 603 are abutted against one side of the turntable 602, the abutting section 601 is integrally formed in a long strip shape along the length direction of the first pipe section 201, through holes for the first pipe section 201 to pass through are formed in the centers of the abutting plate 603 and the turntable 602, the turntable 602 is rotationally connected to the abutting plate 603, the turntable 602 is circular, the turntable 602 is provided with an avoidance groove 604 communicated with the through holes, when the turntable 602 rotates to drive the abutting section 601 to be opposite to the avoidance groove 604, in combination with FIG. 6, when the abutting section 601 is not opposite to the avoidance groove 604 and the trigger 3 pushes the abutting section 603 and the turntable 602 to move, the turntable 602 is abutted against the abutting section 601 and the first pipe section 201 is pushed towards the push section 203, thus, the pushing section 203 is driven to push the liquid spraying opening of the foaming agent tank, the foaming agent in the foaming agent tank is sprayed out through the foaming pipe 2 under the action of the internal pressure of the tank body, when the avoiding groove 604 is opposite to the abutting section 601, the trigger 3 is pushed, the trigger 3 drives the abutting plate 603 and the rotary table 602 to move towards the pushing section 203, but the first pipe section 201 is not arranged in a moving way along the axial direction, the pushing section 203 does not push the foaming agent tank, so that the foaming agent in the foaming agent tank can not be sprayed out, the first pipe section 201 is driven to move when the rotary table 602 is rotated, the elastic reset piece 605 is sleeved on the first pipe section 201, the elastic reset piece 605 in the embodiment is a spring, two ends of the elastic reset piece 605 are respectively abutted with the inner wall of the shell 1 and one side of the rotary table 602 away from the abutting plate 603, when the trigger 3 drives the bottom plate and the rotary table 602 to move towards the pushing section 203, the elastic reset piece 605 always drives the rotary table 602 to move away from the push section 203, so that after the trigger 3 presses the abutting plate 603, the elastic reset piece 605 drives the bottom plate and the rotary table 602 to reset, the rotary table 602 is provided with an arc-shaped guide groove 606, the center of the arc-shaped guide groove 606 coincides with the central axis of the rotary table 602, a limit screw 607 penetrates through the arc-shaped guide groove 606, the limit screw 607 is in threaded connection with the abutting plate 603 after penetrating through the arc-shaped guide groove 606, the limit screw 607 is in a step shape and comprises a threaded section provided with threads and a bolt head with the diameter larger than the threaded section, the diameter of the bolt head is larger than the width of the arc-shaped guide groove 606, when the rotary table 602 rotates the limit screw 607 is respectively positioned at two ends of the arc-shaped guide groove 606, when the limit screw 607 is respectively positioned at two ends of the arc-shaped guide groove 606, the abutting section 601 is respectively opposite to the avoiding groove 604, in this embodiment, two arc-shaped guide grooves 606 are provided, and each arc-shaped guide groove 606 is provided with a limit screw 607, but not limited to two or more than two limit screws 607, so that the rotation angle of the turntable 602 can be limited by the limit screws 607, and the separation of the turntable 602 from the retaining plate 603 can be limited.

The carousel 602 outer lane is provided with the round ring gear, carousel 602's annular ring gear highly is not less than the pipe section one 201 presses the pressing depth of foaming agent jar, the pin joint has the stirring gear 608 that meshes with carousel 602 outer lane ring gear in casing 1, dodge window 609 has been seted up on the casing 1, some stirring gear 608 stretches out casing 1 through dodging window 609 and sets up, thereby can rotate stirring gear 608 in casing 1 outside, order about the carousel 602 rotation setting that is located casing 1, because carousel 602 outer lane annular ring gear's thickness is greater than the pressing depth, thereby when carousel 602 moves towards or keeps away from bulldozing section 203 direction, carousel 602's ring gear can mesh with stirring gear 608 all the time and set up, be provided with the instruction sign on stirring gear 608, the instruction sign can be used to instruct which end of stop screw 607 is located arc guide slot 606, the instruction sign in this embodiment can adopt colour or unsmooth sign.

The abutting plate 603 and the rack 701 are provided with an air path switching device 7, the air path switching device 7 is arranged between the piston tube I501 and the piston tube II 503, the air path switching device 7 comprises the rack 701 which is connected with the abutting plate 603 in a strip shape and meshed with an outer ring gear of the turntable 602 in a sliding way, a first pipe joint 702 which is connected with the rack 701 in a threaded way and a second pipe joint 703 which is connected with the bottom plate in a threaded way, the first pipe joint 702 is communicated with the piston tube I501 through an air pipe, the second pipe joint 703 is communicated with the piston tube II 503 through an air pipe, the rack 701 is provided with a linear guide groove 704 along the length direction, two or more limit screws 607 are also connected in the linear guide groove 704 in a threaded way, the limit screws 607 can limit the moving direction and the moving distance of the rack 701, when the rack 701 is respectively positioned at two limit positions, the limit screws 607 in the arc guide groove 606 are also positioned at two limit positions at the same time, when the rack 701 is respectively positioned at two extreme moving positions, the sealing sleeves 506 are sleeved at the opposite ends of the first pipe joint 702 and/or the second pipe joint 703, in the embodiment, the sealing sleeves 506 are arranged at the ports of the first pipe joint 702 and the second pipe joint 703, when the first pipe joint 702 and the second pipe joint 703 are opposite, the sealing sleeves are mutually abutted and concentrically arranged, the sealing sleeves 506 form sealing for the first pipe joint 702 and the second pipe joint 703, so that gas leakage entering the second piston pipe 503 from the first piston pipe 501 is avoided, and due to the arrangement of the two groups of the second piston pipes 503 in the embodiment, the retaining plate 603 and the rack 701 are respectively provided with the first pipe joint 702 and the second pipe joint 703, one end of a gas pipe connected with the first piston pipe 501 is connected with a three-way joint, the two pipe joints 703 are respectively connected with the first pipe joint 702 through the three-way joint, the second pipe joint 703 is respectively communicated with the second piston pipe 503, the air pipe connection mode is that the prior art is excessively repeated, the first pipe joint 702 and the second pipe joint 703 are respectively in opposite and non-opposite states, when the first pipe joint 702 and the second pipe joint 703 are opposite, the first piston pipe 501 and the second piston pipe 503 can be communicated and arranged through the air path switching device 7, meanwhile, the abutting section 601 is opposite to the avoiding groove 604, at the moment, the pressing trigger 3 can drive the trigger 3 to drive the first piston part 502 to make a piston movement relative to the first piston pipe 501, air in the piston pipe can enter the second piston pipe 503 through the air pipe and the air path switching device 7, the second piston part 504 is pushed to drive the cleaning push plate 4 to move and be arranged, meanwhile, the pushing section 203 does not move towards the direction of the foaming agent tank because the abutting section 601 is opposite to the avoiding groove 604, so that the foaming agent tank does not spray the foaming agent, at the moment, the cleaning push plate 4 can clear the foaming agent in the first pipe section 201 out of the first pipe section 201, thus ensuring that the inside of the pipe section I201 is clean, when the rack 701 is in the other limit moving position, the pipe joint I702 and the pipe joint II 703 are not opposite and are both communicated with the outside air, at the moment, the abutting section 601 is not opposite to the avoiding groove 604, the abutting section 601 is abutted to the turntable 602, when the trigger 3 is pulled, the turntable 602 pushes the abutting section 601 to move, at the moment, the pushing section 203 can drive the foaming gun tank to spray foaming agent, because the pipe joint I702 is not opposite to the pipe joint II 703, the gas in the piston pipe I501 is directly discharged outside and cannot be compressed into the piston pipe II 503, so that the cleaning push plate 4 cannot be driven to move by pushing the piston piece II 504, the pushing section 203 does not apply acting force to the foaming agent tank and the foaming agent tank cannot spray the foaming agent when the cleaning push plate 4 cleans the pipe fitting I, when the foaming agent tank sprays foaming agent, the cleaning push plate 4 does not move, and the working states of the cleaning push plate and the foaming agent tank are prevented from interfering with each other.

Claims

1. The cleanable foaming gun comprises a shell (1), a foaming pipe (2) arranged in the shell (1) and a trigger (3) for driving the foaming pipe (2) to move, and is characterized in that a cleaning device for cleaning foaming liquid remained in the foaming pipe (2) is arranged in the foaming pipe, the cleaning device comprises a cleaning push plate (4) arranged in the foaming pipe (2) and a power component (5) matched with the trigger (3) and used for driving the cleaning push plate (4) to move, the power component (5) comprises a piston pipe I (501) connected with the shell (1), a piston part I (502) abutted with the trigger (3) and connected with the piston pipe I (501) in a sliding manner, a piston part II (503) connected with the foaming pipe (2), a piston part II (504) connected with the piston pipe II (503) in a sliding manner and used for driving the cleaning push plate (4) and a gas pipe used for connecting the piston pipe I (501) with the piston pipe II (503) are arranged in the foaming pipe (2), when the trigger (3) is pressed, the piston part I (502) moves the gas driving the piston pipe I (501) into the piston pipe II (503) through the piston pipe II (503) and drives the piston pipe II (504) to move when the piston pipe II (504) is arranged in the piston pipe II (504) to move, the pushing plate drives the foaming liquid remained in the foaming pipe to be pushed out;

the trigger (3) is matched with a mode switching component (6), the trigger (3) is pivoted in the shell (1), the mode switching component (6) comprises a abutting section (601) arranged on the foaming pipe (2) and a rotary table (602) rotating relative to the foaming pipe (2), the trigger (3) is driven to rotate around the pivot joint to push the rotary table (602) to move, the rotary table (602) is provided with a avoiding groove (604), a first abutting plate (603) matched with the rotary table (602) is arranged in the shell (1) in a sliding manner, the rotary table (602) is provided with an arc-shaped guide groove (606), a limit screw (607) is arranged in the arc-shaped guide groove (606), when the rotary table (602) rotates, the limit screw (607) is respectively arranged at two ends of the arc-shaped guide groove (606), the abutting section (601) and the avoiding groove (604) are respectively in opposite and not opposite states, the abutting plate (603) is provided with an air path switching component, the switching component comprises a rack (701) which is connected with the abutting plate (603) in a sliding manner and is meshed with the rotary table (602), a first abutting plate (603) arranged on the shell (1) in a sliding manner, a second abutting plate (603) is arranged on the sliding manner, a second abutting plate (703) is arranged on the piston (703) and a first abutting plate (703) is arranged on the piston (703) and is connected with the second abutting plate (703) respectively, when the rotary table (602) rotates to drive the rack (701) to move, the first pipe joint (702) and the second pipe joint (703) are driven to be arranged relatively or not, when the first pipe joint (702) and the second pipe joint (703) are opposite to each other, the abutting section (601) is communicated with the second pipe joint (703) and is arranged relatively to the avoidance hole, the piston member (502) moves to push the second piston rod to drive the cleaning push plate (4) to move, when the first pipe joint (702) and the second pipe joint (703) are not opposite to each other, the abutting section (601) is not arranged relatively to the avoidance hole, the piston member (502) moves to drive the second piston rod to move, the mode switching assembly has at least two states, and when the mode switching assembly (6) is in one state, namely, when the abutting section (601) is not opposite to the avoidance groove (604) and the trigger (3) pushes the rotary table (602) to move, the rotary table (602) is pushed to move by abutting the abutting section (601) to push the foaming pipe (2), and the foaming agent can be arranged along the foaming pipe (2) in an injection mode; when the mode switching assembly (6) is in a second state, namely when the rotating turntable (602) drives the abutting section (601) to be opposite to the avoidance groove (604) and the trigger (3) pushes the turntable (602) to move, the turntable (602) does not drive the foaming tube (2) to move, and after the cleaning push plate (4) moves, residual foaming agent in the foaming tube (2) is driven to be discharged out of the foaming tube (2).

2. A cleanable foam gun according to claim 1, characterized in that a return spring (505) for the return of the first piston part (502) or the second piston part (504) is arranged in both the first piston tube (501) and the second piston tube (503).

3. A cleanable foam gun according to claim 1, characterized in that the turntable (602) is provided in abutment with an elastic return element (605) for return of the turntable (602).

4. A cleanable foam gun according to claim 1, wherein the outer ring of the turntable (602) is provided with a gear ring, and the mode switching assembly further comprises a toggle gear (608) engaged with the turntable (602), the toggle gear (608) being partially extended outside the housing (1).

5. A cleanable foam gun according to claim 1, characterized in that the opposite ends of the first (702) and/or second (703) pipe joints are provided with sealing sleeves (506) for sealing.

6. The cleanable foam gun according to claim 1, wherein the foam tube (2) comprises a first tube section (201) and a second tube section (202) detachably connected with the first tube section (201), the cleaning push plate (4) is arranged in the first tube section (201), the first tube section (201) is abutted to a liquid spraying port of the foam agent tank, when the first tube section (201) moves towards the foam agent tank, the foam agent in the foam agent tank can be sprayed out through the foam tube (2) through the liquid spraying port, an inner hole of the first tube section (201) is rectangular, and the cleaning push plate (4) is in a long strip shape matched with an inner wall of the first tube section (201).