CN115178394A

CN115178394A - Cleanable foaming gun

Info

Publication number: CN115178394A
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: 2022-10-14
Anticipated expiration: 2042-08-24
Also published as: CN115178394B

Abstract

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

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 mostly applied in the field of buildings, the foaming agent is generally arranged in a foaming agent tank, the foaming agent tank is generally matched with a foaming gun for use, the foaming agent of the foaming gun is usually blocked by the foaming agent in the using process of the foaming gun, when the foaming agent blocks the foaming pipe, the foaming pipe needs to be replaced or dredged, for example, in a foaming gun with application number of CN202021417154.8, the foaming pipe of the foaming gun is detachably connected and passed, the disassembled 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 that the foaming agent tank is arranged, the second pipe body is stretched into the second pipe body through a steel wire brush for dredging when being cleaned, the first pipe body is difficult to dredge due to direct abutting against the foaming pipe, and the dredging and the working efficiency is low, and if the foaming pipe is directly replaced, the use cost is too high, the resource waste is easily caused.

Disclosure of Invention

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

In order to solve the technical problem, the invention is solved by the following technical scheme: the utility model provides a can clean foaming rifle, which comprises a housin, set up in the casing foaming pipe and order about the trigger that the foaming pipe removed, the intraductal cleaning device who is used for the clearance that is provided with of foaming, cleaning device is including setting up in the clean push pedal of foaming pipe and the power component who sets up and can be used to order about clean push pedal and remove with the trigger cooperation, the trigger cooperation is provided with the mode switching subassembly, when the mode switching subassembly does not switch, press the trigger and only order about the foaming pipe and remove the setting, foaming agent can be followed the foaming pipe and injected the setting, switch the back when the mode switching subassembly, press the trigger and only order about clean push pedal and remove the setting, and the foaming pipe does not remove, the foaming agent discharge foaming pipe setting in the foaming pipe can be ordered about in the clean push pedal removal.

Adopt above-mentioned scheme, remove in the foaming pipe under power component's effect when clean push pedal, thereby can order about the foaming agent discharge foaming pipe in the foaming pipe and avoid the foaming agent to block up in the foaming pipe, the mode of operation and the clean mode accessible mode switching subassembly of foaming gun blowout foaming agent switch the setting, thereby this foaming gun can be used for work, can be used to switch clean mode through mode switching subassembly after work is accomplished, thereby carry out the efficient cleanness to the foaming agent in the foaming pipe.

Preferably, the power assembly comprises a first piston pipe connected to the shell, a first piston part abutted against the trigger and connected to the first piston pipe in a sliding manner, a second piston pipe connected to the foaming pipe, a second piston part connected in the second piston pipe in a sliding manner and used for pushing the cleaning push plate, and an air pipe used for connecting the first piston pipe and the second piston pipe.

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

Preferably, a return spring for returning the first piston piece or the second piston piece 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.

As preferred, the trigger pin joint is in the casing, the mode switching subassembly is including setting up in the butt section of foaming pipe and foaming pipe pivoted carousel relatively, it promotes the carousel removal setting to order to trigger to rotate around its pin joint department, the groove of dodging has been seted up to the carousel, when the butt section not with dodge the groove relative and the trigger promotes the carousel and remove, the carousel is through promoting the foaming pipe with butt section butt and removes, when rotating the carousel and ordering about the butt section and dodging the groove relative and the trigger promotes the carousel and remove, the carousel does not order about the foaming pipe and removes the setting.

Adopt above-mentioned scheme, whether can order about the butt section when the carousel rotates and dodge the relative setting in groove, when the butt section not with dodge the relative and trigger promotion butt plate in groove and carousel removal, the carousel pushes away the butt section with butt section butt and its pipeline section one towards bulldozing the section direction and removing the setting, thereby order about the section of bulldozing and press the hydrojet mouth of foamer jar, foamer in the foamer jar sprays through the foaming pipe under the effect of internal pressure of jar and goes out, when dodging the groove with the butt section relative, press the trigger, trigger orders about butt plate and carousel and bulldozes the section direction and remove, but pipeline section one does not follow the axis direction and removes the setting, bulldoze the section and not press the foamer jar, thereby foamer in the foamer jar can not spray and go out.

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

Adopt above-mentioned scheme, elasticity resets and mainly acts on and is used for the carousel to reset and sets up.

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

By adopting the scheme, the gear ring structure is convenient for driving the rotating shifting gear to rotate, so that the rotating disc is driven to rotate.

Preferably, the casing is internally provided with a supporting plate matched with the rotary table in a sliding manner, 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 and the first limit screw is respectively positioned at two ends of the arc-shaped guide groove, the supporting section and the avoiding groove are respectively in a relative state and a non-relative state.

By adopting the scheme, the arc-shaped guide groove and the limit screw are matched to limit the rotation angle of the turntable and also play a role in limiting the turntable to be separated from the abutting 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 mode and meshed with the rotary table, a first pipe joint and a second pipe joint, the first pipe joint is arranged to be connected with the first piston pipe, the second pipe joint is arranged to be 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 arranged oppositely or not, when the first pipe joint and the second pipe joint are located in a mode of being communicated oppositely, meanwhile, the abutting section and the avoiding hole are arranged oppositely, the first piston piece moves to push the second piston rod to drive the cleaning push plate to move, when the first pipe joint and the second pipe joint are not opposite, the abutting section is not arranged oppositely to the avoiding hole, and the first piston piece moves to drive the second piston rod to move.

By adopting the scheme, the poking gear can rotate to drive the rack to move through the turntable, the rack can be driven to move through the rack to drive whether the gas in the piston pipe I can be pressed into the piston pipe II, when the pipe joint I faces the pipe joint II, the piston piece I is driven to move to drive the gas in the piston pipe I to be pressed into the piston pipe II, and when the pipe joint I does not face the pipe joint II, the piston piece I can not move to inflate the piston pipe II.

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

By adopting the scheme, the sealing sleeve can improve the sealing property between the first pipe joint and the second pipe joint.

Preferably, the foaming pipe comprises a pipe section I and a pipe section II detachably connected with the pipe section I, the cleaning push plate is arranged in the pipe section I, the pipe section I is abutted to a liquid spraying opening of the foaming agent tank, when the pipe section I moves towards the foaming agent tank, the foaming agent in the foaming agent tank can be sprayed out through the foaming pipe through the liquid spraying opening, an inner hole of the pipe section I is rectangular, and the cleaning push plate is in a long strip shape matched with the inner wall of the pipe section I.

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

Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: the method comprises the following steps of pressing a trigger, driving the trigger to drive a piston piece I to do piston motion relative to a piston tube I, enabling gas in the piston tube to enter a piston tube II through an air tube and a gas path switching device, and pushing the piston piece II to drive a cleaning push plate to move and set, wherein a butting section is opposite to a avoiding groove, a pushing section does not move towards the direction of a foaming agent tank, so that the foaming agent tank does not spray foaming agent, the cleaning push plate can remove the foaming agent in the tube section I out of the tube section I, so that the cleanness of the tube section I is ensured, when a rack is at the other limit moving position, the tube joint I and the tube joint II are not opposite, both are communicated with the outside air, the butting section is not opposite to the avoiding groove, the butting section is abutted to a rotary table, when the trigger is pulled, the rotary table pushes the butting section to move, the pushing section can drive a foaming agent spraying gun to spray out, because the tube joint I is not opposite to the tube joint II, the gas in the piston tube I is directly discharged outside, the gas cannot be compressed into the piston tube II, so that the cleaning push plate can not spray out the foaming agent when the cleaning push plate is pushed, the cleaning push plate, and the foaming agent cannot be moved, and the foaming agent spraying force cannot be applied to the foaming agent spraying out when the foaming agent is not applied.

Drawings

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

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

FIG. 3 is a view of the gas pipe connection of the gas path switching device;

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

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

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

FIG. 7 is a view of the abutment section in relation to the relief groove.

The names of the parts indicated by the numerical references in the above figures are as follows: 1. a housing; 101. a threaded opening; 2. a foam 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 piston tube I; 502. a first piston piece; 503. a piston tube II; 504. a second piston member; 505. a return spring; 506. sealing sleeves; 6. a mode switching component; 601. an abutment section; 602. a turntable; 603. a resisting plate; 604. an avoidance groove; 605. an elastic reset member; 606. an arc-shaped guide groove; 607. a limit screw; 608. shifting a gear; 609. avoiding the window; 7. a gas path switching device; 701. a rack; 702. a first pipe joint; 703. a pipe joint II; 704. and a linear guide groove.

Detailed Description

The invention is described in further detail below with reference to the figures and examples.

Example (b):

a cleanable foaming gun firstly refers to figures 1 and 2, and comprises a shell 1, a foaming pipe 2 arranged in the shell 1 and a trigger 3 driving the foaming pipe 2 to move, wherein the shell 1 is provided with a threaded opening 101 used for screwing in a foaming agent tank in a threaded manner, the foaming pipe 2 comprises a pipe section I201 and a pipe section II 202 detachably connected with the pipe section I201, the pipe section II 202 and the pipe section I201 are in threaded connection in the embodiment, the pipe section II 202 can also be clamped or cancelled, the bottom surface of the threaded opening 101 is provided with a mounting hole in sliding fit with the foaming pipe 2, one end of the pipe section I201 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 pipe section I201, the pushing section 203 is located in the threaded opening 101, the pipe section I201 is arranged in a sliding manner in the mounting hole, the outer wall of the pipe section I201 is square, the mounting hole is in a shape matched with the outer wall of the pipe section I201 in a clearance manner, one end of the mounting hole is pivoted with the shell 1, the pushing section 203 is arranged in a mode that the pushing section 203 is in contact with the liquid spraying opening of the foaming agent tank, when the trigger 3 can drive the pipe section I201 to move towards the direction of the foaming agent tank, the pipe section I201, the foaming agent tank, the foaming agent spraying opening, the foaming agent tank, the foaming agent spraying pipe section I201, and the foaming agent spraying position of the foaming agent tank, the foaming agent outlet of the foaming agent tank, the foaming agent tank is directly, and the foaming agent outlet of the foaming agent tank, and the foaming agent outlet of the foaming agent tank, and the foaming agent tank is directly formed by the foaming agent outlet 201.

Referring to fig. 2 and 3, a cleaning device is arranged in a first pipe section 201 of a foaming pipe 2, the cleaning device comprises a cleaning push plate 4 arranged in the first pipe section 201 and a power assembly 5 which is arranged in a trigger 3 in a matching manner and can be used for driving the cleaning push plate 4 to move, an inner hole of the first pipe section 201 is in a strip shape and the cleaning push plate 4 is also in a strip shape, because a liquid spraying port part of a foaming agent tank is positioned in a pushing section 203, foaming agent of the foaming agent tank directly enters the first pipe section 203, so that the cleaning in the pushing section 203 is not needed and the pushing section 203 cannot be blocked, when the cleaning push plate 4 is not moved by the power assembly 5, the cleaning push plate 4 is arranged in an abutting manner on one side of the inner wall of the first pipe section 201, a rubber layer 401 is wrapped outside the cleaning push plate 4, a circle of sealing lip 402 is arranged on one side, which is positioned on the outer ring of the rubber layer 401 and is connected with the power assembly 5, when the cleaning push plate 4 moves, the sealing lip 402 is always arranged in an abutting manner with one side of the pipe section I201 where the power assembly 5 is arranged, so that foaming agents are prevented from leaking from a mounting hole connected with a piston pipe II 503, the rubber layer 401 and the sealing lip 402 can be used for improving the sealing performance of the cleaning push plate 4 relative to the inner wall of the foaming pipe 2, and with reference to the drawing of figures 3 and 4, the power assembly 5 comprises a piston pipe I501 connected with the inside of the shell 1, a piston piece I502 connected with the trigger 3 in an abutting manner and in sliding connection with the piston pipe I501, a piston pipe II 503 connected with the foaming pipe 2, a piston piece II 504 connected with the piston pipe II 503 in a sliding manner and pushing the cleaning push plate 4, and an air pipe used for connecting the piston pipe I501 and the piston pipe II 503, in the embodiment, the pipe I201 is in threaded connection with the two piston pipes II 503, but not limited to two, can be one or more, the pipe I201 is provided with a threaded hole identical to the inner wall, one end of the second piston tube 503 is in threaded connection with a threaded hole of the first tube section 201, an inner hole of the second piston tube 503 is in a step shape and comprises a large diameter and a small diameter facing the first tube section 201, the outer diameter of the second piston piece 504 is also in a step shape and comprises a large diameter connected with the large diameter of the second piston tube 503 in a sliding mode and a small diameter connected with the small diameter of the second piston tube 503 in a sliding mode, one end of the small diameter of the second piston piece 504 is in threaded connection with a push plate, a return spring 505 is arranged in the second piston tube 503, two ends of the return spring 505 in the second piston tube 503 are respectively in abutting connection with the step surface of the second piston piece 504 and the step surface of the second piston tube 503, a sealing ring for sealing is sleeved at the large diameter of the second piston piece 504, the return spring 505 in the second piston tube 503 drives one end of the second piston piece 504 to move away from the direction of the first piston tube 2, a return spring 505 is also arranged in the first piston tube 501, and two ends of the return spring 505 are respectively in abutting connection with the bottom surface of the first piston tube 501 and one end of the first piston piece 502, in this embodiment, the volume that the piston member one 502 can move in the piston tube one 501 is much larger than the volume that the piston member two 504 can move in all the piston tubes two 503, so that the compressible gas in the piston member one 502 is larger than the total amount of the receivable gas in all the piston tubes two 503, when the trigger 3 is pressed, the piston rod one moves towards the bottom inside the piston tubes two 503, the gas in the piston tube one 501 is compressed into the piston tubes two 503 through the gas tubes, so that the piston member in the piston tubes two 503 is pushed to push the cleaning push plate 4 to move, the cleaning push plate 4 moves to push the foaming agent in the tube section one 201 into the tube section two 202, the foaming agent in the tube section two 202 is discharged from the opening of the tube section two 202 far from one end of the tube section one 201, and because the tube section one 201 and the tube section two 202 are detachably arranged, therefore, the pipe section two 202 can be detached to clean the pipe section two 202 independently, the foam pipe 2 in this embodiment includes the pipe section one 201 and the pipe section two 202 which is at a certain angle relative to the pipe section one 201, but the two sections are not limited, the foam pipe 2 can also adopt the pipe section one 201 which is only one section, when the pipe section one 201 is only used, the cleaning push plate 4 moves to push the foaming agent in the pipe section one 201 out of the foam pipe 2 completely, and the pipe section two 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 disposed in the housing, the mode switching assembly has two states, when the state is the first state, the trigger is operated to move the foam tube toward the foam tank, so that the pushing section 203, which is originally abutted against the liquid spray opening of the foam tank, applies an acting force to the liquid spray opening of the foam tank, at this time, the foam agent in the foam tank can be sprayed out along the foam tube, and the cleaning push plate 4 is not moved, and when the state is the second state, the trigger is operated to not move the foam tube, so that no acting force is applied to the liquid spray opening of the foam tank, the foam tank does not spray the foam agent, only the cleaning push plate 4 is moved, the cleaning push plate 4 is moved to clean the first pipe 201, the mode switching assembly 6 includes an abutting section 601 protruding outside the first pipe 201, a rotating disc 602 rotating relative to the first pipe 201, and an abutting plate 603 for rotatably matching the rotating disc 602, the abutting plate 603 is arranged in a sliding fit with the inner wall of the shell 1, the abutting plate 603 can be arranged in a sliding manner along the length direction of the pipe section I201, the abutting plate 603 is positioned on one side, away from the foaming agent tank, of the rotary disc 602, the trigger 3 and the abutting plate 603 are arranged in an abutting manner and are far away from one side, away from the rotary disc 602, of the abutting section 601 is integrally formed along the length direction of the pipe section I201 in a long strip shape, through holes for the pipe section I201 to pass through are formed in the centers of the abutting plate 603 and the rotary disc 602, the rotary disc 602 is rotatably connected to the abutting plate 603, the rotary disc 602 is annular, an avoiding groove 604 communicated with the through holes is formed in the rotary disc 602, when the rotary disc 602 rotates, the abutting section 601 can be driven to be arranged opposite to the avoiding groove 604, and when the abutting section 601 is not opposite to the avoiding groove 604 and the trigger 3 pushes the abutting plate 603 and the rotary disc 602 to move, the abutting section 602 and the abutting section 602 is abutted against the abutting section 601 and the abutting section 602 and the abutting section 601 moves towards the pushing section 203, thereby, the pushing section 203 is driven to press 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, with reference to fig. 7, when the avoiding groove 604 is opposite to the abutting section 601, the trigger 3 is pressed, the trigger 3 drives the abutting plate 603 and the rotating disc 602 to move towards the pushing section 203, but the pipe segment one 201 is not arranged along the axial direction in a moving way, the pushing section 203 does not press the foaming agent tank, so that the foaming agent in the foaming agent tank is not sprayed out, thereby the pipe segment one 201 is driven to move when the rotating disc 602 is rotated, the elastic resetting piece 605 is sleeved on the pipe segment one 201, in the embodiment, the elastic resetting piece 605 is a spring, two ends of the elastic resetting piece 605 are respectively arranged in an abutting way with the inner wall of the housing 1 and one side of the rotating disc 602 far from the abutting plate 603, so that when the trigger 3 drives the bottom plate and the rotating disc 602 to move towards the pushing section 203, the elastic reset piece 605 always drives the rotating disc 602 to move in the direction away from the pushing section 203, so that after the trigger 3 presses the abutting plate 603, the elastic reset piece 605 can drive the bottom plate and the rotating disc 602 to reset, the rotating disc 602 is provided with an arc-shaped guide groove 606, the circle center of the arc-shaped guide groove 606 is overlapped with the central axis of the rotating disc 602, a limit screw 607 penetrates through the arc-shaped guide groove 606 and is in threaded connection with the abutting plate 603, the limit screw 607 is in a step shape and comprises a threaded section provided with threads and a bolt head with a 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 rotating disc 602 rotates the limit screw 607 to be respectively positioned at two ends of the arc-shaped guide groove 606, the abutting section 601 is respectively opposite to and not opposite to the avoiding groove 604, in this embodiment, two arc-shaped guide slots 606 are provided, and each arc-shaped guide slot 606 is provided with a limit screw 607 therein, but the number of the limit screws is not limited to two, and the limit screws 607 can limit the rotation angle of the rotating disc 602 and can also play a role in limiting the rotating disc 602 to be separated from the supporting plate 603.

The outer ring of the rotary table 602 is provided with a ring of gear rings, the height of the ring-shaped gear ring of the rotary table 602 is not less than the pressing depth of the first pipe section 201 pressing the foaming agent tank, the shell 1 is internally and pivotally connected with a toggle gear 608 meshed with the ring gear of the outer ring of the rotary table 602, an avoiding window 609 is formed in the shell 1, part of the toggle gear 608 extends out of the shell 1 through the avoiding window 609, so that the toggle gear 608 can be rotated outside the shell 1, the rotary table 602 located in the shell 1 is driven to rotate and set, the thickness of the ring-shaped gear ring of the outer ring of the rotary table 602 is greater than the pressing depth, when the rotary table 602 moves towards or away from the pushing section 203, the ring gear of the rotary table 602 can be always meshed with the toggle gear 608, an indication mark is arranged on the toggle gear 608, the indication mark can be used for indicating which end of the limiting screw 607 is located in the arc guide groove 606, and the indication mark in the embodiment can adopt a color or a concave-convex mark.

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 first piston pipe 501 and the second piston pipe 503, the air path switching device 7 comprises a rack 701 which is slidably connected with the abutting plate 603 and is engaged with a gear ring on the outer ring of the turntable 602, a first pipe joint 702 which is in threaded connection with the rack 701 and a second pipe joint 703 which is in threaded connection with the bottom plate, the first pipe joint 702 is communicated with the first piston pipe 501 through an air pipe, the second pipe joint 703 is communicated with the second piston pipe 503 through an air pipe, the rack 701 is provided with a linear guide groove 704 along the length direction, two or more than two limiting screws 607 are also in threaded connection in the linear guide groove 704, the limiting screws 607 can limit the moving direction and the moving distance of the rack 701, when the rack 701 is respectively located at two limit positions, the limiting screws 607 in the arc guide groove 606 are simultaneously located at two limit positions, when the rack 701 is respectively located at two limit moving positions, the ends of the first pipe joint 702 or/and the second pipe joint 703 are sleeved with sealing sleeves 506 for sealing, when the rack 701 is respectively located at two limit positions, the piston pipe joints 703 are respectively, the piston pipe joint 703 and the piston pipe joint 703 are connected with the piston pipe 501 and the piston pipe joint 501 through the two sets, two sets are respectively, and the piston pipe joints 703 are connected with the piston pipe joints 501 through the piston pipe joints, and the piston pipe joints 703, and the piston pipe joints, two sealing sleeve 702, and the piston pipe joints 703, two sealing sleeve 702, and the piston pipe joints 703 are respectively, and the piston pipe joints 501 are respectively, and the piston pipe joints 703 are connected with the piston pipe joints 501, and the piston pipe joints 501, two sealing sleeve 702, and the piston pipe joints 703 are arranged concentrically, the connection mode of the air pipes is not repeated in the prior art again, the first pipe joint 702 and the second pipe joint 703 are in a relative state and a non-relative state respectively, when the first pipe joint 702 is opposite to the second pipe joint 703, the first piston pipe 501 and the second piston pipe 503 can be communicated through the air passage switching device 7, meanwhile, the abutting section 601 is opposite to the avoiding groove 604, the trigger 3 is pressed, the trigger 3 can be driven to drive the first piston part 502 to do piston motion 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 passage switching device 7, the second piston part 504 is driven to drive the cleaning push plate 4 to move, meanwhile, as the abutting section 601 is opposite to the avoiding groove 604, the push section 203 does not move towards the direction of the foaming agent tank, so that the foaming agent tank does not spray foaming agent, at the moment, the cleaning push plate 4 can remove the foaming agent in the first pipe section 201 out of the first pipe section 201, therefore, the cleaning in the pipe section I201 is ensured, when the rack 701 is at the other limit moving position, the pipe joint I702 and the pipe joint II 703 are not opposite, and both are 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 rotary disc 602, when the trigger 3 is pulled, the rotary disc 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, the gas cannot be compressed into the piston pipe II 503, the cleaning push plate 4 cannot be driven to move by pushing the piston pipe II 504, and when the cleaning push plate 4 can clean the inside of the pipe joint I through the gas circuit switching device 7, the pushing section 203 does not apply acting force to the foaming agent tank, and the foaming agent tank does not spray foaming agent, when the foaming agent tank sprays the foaming agent, the cleaning push plate 4 does not move, and the mutual interference of the working states of the cleaning push plate and the foaming agent tank is avoided.

Claims

1. A 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, and is characterized in that a cleaning device used for cleaning foaming liquid remained in the foaming tube (2) is arranged in the foaming tube (2), the cleaning device comprises a cleaning push plate (4) arranged on the foaming tube (2) and a power assembly (5) which is matched with the trigger (3) and used for driving the cleaning push plate (4) to move, when the power assembly drives the push plate to move in the foaming tube, the push plate drives the foaming liquid remained in the foaming tube to be pushed out, the trigger (3) is matched with a mode switching assembly (6), the mode switching assembly has at least two states, when the mode switching assembly (6) is in one state, the trigger (3) only drives the foaming tube (2) to move, and a foaming agent can be injected and arranged along the foaming tube (2); when the mode switching assembly (6) is in the second state, the pressing trigger (3) only drives the cleaning push plate (4) to move and does not drive the foaming tube (2) to move, and the cleaning push plate (4) drives the residual foaming agent in the foaming tube (2) to be discharged out of the foaming tube (2) after moving.

2. The cleanable foam gun according to claim 1, wherein the power assembly (5) comprises a first piston tube (501) connected to the housing (1), a first piston member (502) abutting against the trigger (3) and slidably connected to the first piston tube (501), a second piston tube (503) connected to the foam tube (2), a second piston member (504) slidably connected to the second piston tube (503) and pushing the cleaning push plate (4), and an air tube for connecting the first piston tube (501) and the second piston tube (503), when the trigger (3) is pressed, the first piston member (502) moves to drive the air in the first piston tube (501) to enter the second piston tube (503) through the air tube and drive the second piston member (504) to move, and when the second piston member (504) moves to drive the cleaning push plate (4) to move.

3. A cleanable foam gun according to claim 2, wherein a return spring (505) for returning the first piston member (502) or the second piston member (504) is provided in each of the first piston tube (501) and the second piston tube (503).

4. A cleanable foam gun according to claim 2, wherein the trigger (3) is pivotally connected to the inside of the housing (1), the mode switching assembly (6) comprises an abutting section (601) disposed on the foam tube (2) and a rotating disc (602) rotating relative to the foam tube (2), the trigger (3) is driven to rotate around the pivotal connection thereof to push the rotating disc (602) to move, the rotating disc (602) is provided with an avoiding groove (604), when the abutting section (601) is not opposite to the avoiding groove (604) and the trigger (3) pushes the rotating disc (602) to move, the rotating disc (602) pushes the foam tube (2) to move by abutting against the abutting section (601), and when the rotating disc (602) drives the abutting section (601) to be opposite to the avoiding groove (604) and the trigger (3) pushes the rotating disc (602) to move, the rotating disc (602) does not drive the foam tube (2) to move.

5. A cleanable foam gun according to claim 4, wherein the turntable (602) is provided in abutment with an elastic return member (605) for returning the turntable (602).

6. A cleanable foam gun according to claim 4, wherein the outer ring of the rotary plate (602) is provided with a gear ring, the switching device further comprises a toggle gear (608) engaging with the rotary plate (602), the toggle gear (608) being arranged partially protruding outside the housing (1).

7. A cleanable foam gun according to claim 6, wherein the housing (1) is slidably provided with a support plate (603) which is matched with the rotating disc (602), the rotating disc (602) is provided with an arc-shaped guide groove (606), the arc-shaped guide groove (606) is internally provided with a first limit screw (607), and when the rotating disc (602) rotates and one limit screw (607) is respectively positioned at two ends of the arc-shaped guide groove (606), the support section (601) and the avoiding groove (604) are respectively in an opposite state and a non-opposite state.

8. A cleanable foam gun according to claim 7, wherein the abutting plate (603) is provided with a gas path switching assembly, the gas path switching assembly comprises a rack (701) slidably connected to the abutting plate (603) and engaged with the rotating disc (602), a first pipe joint (702) arranged on the rack (701), and a second pipe joint (703) arranged on the abutting plate (603), the first pipe joint (702) is connected with the first piston pipe (501), the second pipe joint (703) is connected with the second piston pipe (503), when the rotating disc (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 to be arranged relatively, when the first pipe joint (702) and the second pipe joint (703) are located in communication with each other, and simultaneously, the pipe joint section (601) and the clearance hole are arranged relatively, the first piston piece (502) can drive the second piston rod to drive the cleaning push plate (4) to move to be arranged, when the first pipe joint (702) and the second pipe joint (703) are not in communication, the abutting section (601) and the clearance hole is arranged relatively to be arranged, and the piston piece (502) can not be arranged to be moved.

9. A cleanable foam gun according to claim 7, wherein the opposite ends of the first pipe connection (702) or/and the second pipe connection (703) are fitted with sealing sleeves (506) for sealing.

10. 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 arranged in contact with a liquid spraying opening 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 opening, an inner hole of the first tube section (201) is rectangular, and the cleaning push plate (4) is elongated to be matched with an inner wall of the first tube section (201).