CN109365231A

CN109365231A - Foam gun

Info

Publication number: CN109365231A
Application number: CN201811525396.6A
Authority: CN
Inventors: 梁海军
Original assignee: Zhejiang Chaoyu Tools Co Ltd
Current assignee: Zhejiang Chaoyu Tools Co Ltd
Priority date: 2018-12-13
Filing date: 2018-12-13
Publication date: 2019-02-22

Abstract

The present invention settles sth. according to policy or law a kind of foam gun, solves the problems, such as the relative complex inconvenient installation of flow adjusting structure in present foam gun, and structure includes having the gun body of adjusting cavity, and gun barrel is connected in the front end of gun body, is equipped with shank inside gun barrel, shank extends in gun body.The trigger coupled with shank is hinged in gun body.Regulating wheel is rotationally set in adjusting cavity, and the rear side of regulating wheel is using gun body as support.Coaxial threaded connection has moving member in regulating wheel, and under the drive of regulating wheel, moving member slides axially, and pulls amplitude in gun body to limit trigger.

Description

Foam gun

Technical field

The present invention relates to a kind of foam guns for spray coating foaming agent.

Background technique

Foaming agent is often needed to use on architectural decoration, foaming agent is mainly used for carrying out the gap between plate Coating, stays at the gap that can be blocked between plate after the foaming agent between plate solidifies.Foaming agent is when being sprayed, and one As be to be realized by means of foam gun.The structure of foam gun mainly includes gun body and gun barrel, is equipped with shank in gun barrel, in gun body Equipped with adapter and trigger, for being connected with foamed pot, trigger is connected adapter with shank.When pulling trigger, shank meeting Trigger is followed to act together, after shank moves under the drive of trigger towards the rear direction of gun body, the front end of shank and gun barrel It will form gap between needle cap set by front end, foaming agent can flow out to the outside of gun barrel, the size in the gap from this gap location It is related with the flow of foaming agent.

To adapt to different construction requirements, setting is generally required on foam gun and is adjusted for the flow to foaming agent Regulating mechanism.The regulating mechanism on existing foam gun is usually the rear end side that gun body is arranged in, and structure generally comprises knob And screw rod, knob is relative to gun body axial restraint, and circumferentially fixed relative to screw rod, after turning knob, knob will drive screw rod work It is axially moved.Shank in screw rod and foam gun is coaxially disposed, and screw rod is after changing axial position, and correspondingly shank can be carried out The maximum distance of axial movement be also just determined, so that the adjusting to foam gun flow can be realized.Existing knob is real The now fixation between gun body usually needs to be arranged in gun body positioning sleeve, and positioning sleeve is realized by fixing bolt and gun body Between fixation, knob pass through positioning sleeve after, need that the circlip for limiting knob axial position is arranged in the back side of positioning sleeve. Screw rod is plugged into knob inner end, and the inner end of screw rod is threadedly coupled with swivel nut, and swivel nut is prism, setting and swivel nut in gun body The sliding cavity matched, shank can contact with each other with the mutually close end of swivel nut.

Flow control device structure on existing foam gun is relatively complicated, and foam gun is assembled in inconvenience.

Summary of the invention

The technical problem to be solved in the invention is: providing a kind of foam gun, the structure of the foam gun is simple, facilitates peace Dress.

Solve a kind of technical solution that the technical problem is taken: foam gun, comprising:

Gun body has adjusting cavity；

Gun barrel is connected in the front end of gun body, and outer end has needle cap, and inside is equipped with shank, and shank extends in gun body；

Trigger is hinged in gun body, is coupled with shank, for driving shank mutually to disengage with needle cap；

Regulating wheel is rotatably arranged in adjusting cavity, and the rear side of regulating wheel is using gun body as support；

Moving member couples with regulating wheel coaxial threaded, and under the drive of regulating wheel, moving member slides axially, and pulls to limit Machine pulls amplitude.

It is described herein it is forward and backward be with gun barrel for the position of gun body, before gun barrel is connected in gun body Side, the side opposite with gun barrel is rear side in gun body.When trigger is under normal condition, the front end of shank presses against going out for needle cap At liquid mouth, to close liquid outlet；When pulling trigger backward, front end and the needle cap liquid outlet of shank are mutually disengaged, and to foam Agent is sprayed from liquid outlet.After moving member axial position changes, the blocking of trigger is pulled to limit trigger by moving member Amplitude, the size that trigger pulls amplitude determines the flow of foaming agent at work.

Further, shank is supported using regulating wheel as axial, and shank passes through moving member with gap.Directly to adjust crop rotation For the axial direction support to shank, so that the structural compactness of foam gun on the whole is good, be conducive to simplify structure.

Further, it is equipped with coupling sleeve in the rear end of regulating wheel, coupling sleeve is plugged in installation cavity set in gun body, bullet One end of spring is pressed against on coupling sleeve by steel ball, and the other end is connected with shank, and shank, which is worn, to be connect in regulating wheel.By adjusting The coupling sleeve axially supported for shank is set on section wheel, facilitates the axial direction support to shank, while regulating wheel can be realized in rifle Stablize connection on body.Regulating wheel rotation when, coupling sleeve follows to be rotated in gun body together, regulating wheel using coupling sleeve as turn Axis, for spring along acting axially on coupling sleeve, the stability of coupling sleeve itself is good in addition, so that regulating wheel is adjusted in rotation Stability in the process is good.

Further, penetrating before and after the installation cavity, the front end of coupling sleeve is threadedly coupled with regulating wheel, the connection after connection Female connector and regulating wheel are realized in gun body realizes axially position.It is pressed from both sides jointly by the rear side of regulating wheel and the plush copper of coupling sleeve rear end It connects at the both ends of installation cavity, and realizes that the stability of regulating wheel in the axial direction is guaranteed, while can also facilitate to regulating wheel Assembly.

Further, coupling sleeve is hollow, and its rear end is cecum, which is located in gun body, and spring and steel ball are located at connection In set, the rear end face of coupling sleeve is equipped with the connection hole for the cooperation that is connected with spanner.Hollow coupling sleeve is easy to implement pair The installation of spring and steel ball, structural compactness is good, so that supporting & stablizing of the regulating wheel to shank.Couple Hangzhoupro by setting, it can It is located at the situation in gun body in coupling sleeve rear end, is easy to implement coupling for coupling sleeve and regulating wheel, the appearance ride comfort of gun body is good. And spring is arranged in coupling sleeve, it is different from existing set-up mode spring being arranged in gun barrel, spring will not soak Stain is to foaming agent, after the use of this foam gun, the convenient cleaning to foam gun.

Further, regulating wheel includes foreign steamer and columnar inner cylinder, and foreign steamer is non-metallic material, and inner cylinder is metal material Matter, the moving member and coupling sleeve and inner cylinder thread connection.Foreign steamer be generally plastics or rubber etc. can injection molding material, it is interior Cylinder is generally brass or stainless steel material.It is threaded between coupling sleeve and inner cylinder, and facilitates and realize coupling sleeve and adjust Being connected and fixed between wheel.

Further, push rod is plugged in moving member internal clearance, shank along axial gap is plugged in push rod, push rod Front end stretch to trigger for mutually contacting with trigger, trigger makes shank be separated with needle cap by push rod, push rod and moving member it Between be equipped with position limiting structure for limiting push rod axial direction moving distance.The position limiting structure, which can be, to be formed plush copper or is inserted on push rod Pin is to realize the blocking with moving member front end, to realize the restriction to push rod axial direction moving distance.The front end of moving member can also be with Directly trigger is stopped, push rod axial direction moving distance is defined to realize, the front end of moving member is the limit knot Structure.The transmitting that trigger power is realized by setting push rod, the driving convenient for trigger to shank, and open-work is set in push rod It is used to wear and connects shank, so that structural compactness is good, facilitate trigger to the axially driving of shank.Shank, push rod and moving member Coaxial arrangement, for regulating wheel when driving moving member axial movement, the radial stability of moving member is good, and part easy to remove is smoothly axial Movement, so that the adjusting Portable power saving of regulating wheel.

Further, lug is equipped on shank, lug is located at the rear side of moving member, the rear end of push rod across moving member and With lug axial action.Lug is formed, usually punch forming generally by the deformation of shank outer peripheral surface.Push rod passes through Lug is axially driving to shank, so that push rod is good to the effect stability of shank.

Further, it is equipped with prong in the front end of push rod, on trigger, moving member passes through between push rod the prong fork-join Socket cooperation and realize that moving member is relatively circumferentially fixed.It can be blocked in by forming plush copper in the front end of push rod by plush copper The front end of moving member and can realize the blocking that moving member moves axially push rod, and then realize the amplitude of pulling of trigger is limited It is fixed.It is provided with plush copper and also facilitates setting prong, can effectively ensure that the contact stabilization between push rod and trigger, so that push rod Steadily shank can be realized under the drive of trigger and driven.It is realized relatively between push rod and moving member by non-circular cooperation It is circumferentially fixed, in push rod fork-join on trigger, so that moving member will not follow regulating wheel to circumferentially rotate, adjusted in rotation When section wheel, moving member can be axially moved.

Further, trigger is hinged at the hinge joint in gun body, and bridge joint has a pair at adjusting cavity position in gun body Inclined plate, this blocks the opposite sides in hinge joint to inclined plate.Since the cooperation on front side of regulating wheel and adjusting cavity need not be taken into consideration Relationship, adjusting cavity can be there are many deformations of form, and design space is larger.And adjusting cavity can be made relatively large a, side Face, which can be convenient, installs some components in adjusting cavity, on the other hand, or foam gun designs novel make Type.A pair of of inclined plate is set at adjusting cavity position, can be effectively reduced because the appearance variation of adjusting cavity brings apparent view Feel defect, the moulding of inclined plate and the setting of arrangement itself can also generate new visual experience to the appearance of foam gun.It is logical It crosses inclined plate to block hinge joint, ensure that the stability that couples between trigger and gun body, hinge joint will not be exposed and brings view Feel defect.

The invention has the following beneficial effects: the regulating wheels in this foam gun, and rear side only to be needed, for support, to be not required to gun body Will be in view of the matching relationship on front side of adjusting cavity between regulating wheel, the shape design circumscribed factor of adjusting cavity itself is small, just In the foam gun for designing novel appearance.Adjusting cavity itself can be designed larger, and the matching requirements between regulating wheel and gun body, So that structure is simple between regulating wheel and gun body, it is easy to assembly.In the case where being axially supported at shank in regulating wheel, this hair The structural compactness for steeping rifle is good, convenient that the working flow of foam gun is adjusted.

Detailed description of the invention

Fig. 1 is the assembling structure longitudinal sectional view of this foam gun.

Fig. 2 is the partial enlargement structure chart in Fig. 1 at gun body position.

Fig. 3 is the longitudinal sectional view of push rod.

Fig. 4 is the longitudinal sectional view of moving member.

Fig. 5 is the side view of moving member.

Fig. 6 is the longitudinal sectional view of regulating wheel.

Fig. 7 is the longitudinal sectional view of coupling sleeve.

In figure, 1, needle cap；2, gun barrel；3, shank；31, lug；32, washer；33, spring；34, steel ball；4, adapter；5, Gun body；51, adjusting cavity；52, hinge joint；53, Chang Kou；54, inclined plate；6, trigger；7, hand handle；8, regulating wheel；81, foreign steamer；82, interior Cylinder；9, it blocks；10, coupling sleeve；101, connection hole；11, push rod；111, protruding head；112, prong；12, moving member；121, bar shaped Hole.

Specific embodiment

In conjunction with Figure of description, this foam gun includes gun body 5, gun barrel 2, adapter 4 and hand handle 7, and gun body 5 is metal material Matter, gun barrel 2 are connected in the front side of gun body 5, and adapter 4 is located at the upside of gun body 5, to be connected with foamed pot, in adapter 4 With the channel led in gun barrel 2.Shank 3 is coaxially disposed in gun barrel 2, the outer end of gun barrel 2 is equipped with needle cap 1, sets in needle cap 1 There is fluid hole, passes through the outflow and cut-off for realizing foaming agent whether cooperation between shank 3 and fluid hole.In gun body 5 It is equipped with adjusting cavity 51 at portion position, can be rotatably set regulating wheel 8 in adjusting cavity 51.The shank 3 is from the rear end of gun barrel 2 It stretches out, and extend into gun body 5.Trigger 6 is hinged in gun body 5, trigger 6 passes through adjusting cavity 51, and trigger 6 is connected with shank 3 It connects, to drive the front end of shank 3 to disengage with 1 phase of needle cap.

The main function components that regulating wheel 8 is adjusted as flow on foam gun, regulating wheel 8 are projected into the outer of adjusting cavity 51 The outer peripheral surface of side, regulating wheel 8 is equipped with several regulating tanks, in order to the rotation of finger push regulating wheel 8.The rear side of regulating wheel 8 with Gun body 5 is as support, to adapt to the axial direction support to shank 3.It is equipped with moving member 12 in the inside of regulating wheel 8, moving member 12 is Cylindrical shape couples with 8 coaxial threaded of regulating wheel.Moving member 12 is relatively circumferentially fixed, and after rotating regulating wheel 8, moving member 12 can be produced Raw axial movement, moving member 12 pulls amplitude itself or by what other components can limit trigger 6, so as to limit foam gun Flow quantity out.Moving member 12 is hollow, and shank 3 is supported after passing through moving member 12 with gap with regulating wheel 8 to be axial.

To realize that regulating wheel 8 stablizes connection in gun body 5, the axial direction in gun body 5 along shank 3 is provided with installation cavity, In the rear end of regulating wheel 8, connection has coupling sleeve 10, and coupling sleeve 10 is plugged in installation cavity with gap.Coupling sleeve 10 is hollow, thereafter End is cecum.Steel ball 34 and spring 33 are equipped in coupling sleeve 10, steel ball 34 is located on the inside of the cecum of coupling sleeve 10, spring 33 Rear end presses against on steel ball 34, and the rear end of shank 3 is extend into coupling sleeve 10 after crossing regulating wheel 8, the front end effect of spring 33 On the rear end of shank 3.

The front end of installation cavity is led in adjusting cavity 51, and 5 outside of gun body is led in rear end, and coupling sleeve 10 and 8 screw thread of regulating wheel join It connects after fixing, the rear end of coupling sleeve 10 is located in installation cavity, the blocking 9 of rubber can be filled in the rear end of installation cavity, to block peace The rear port behaveing affectedly.The rear end face of coupling sleeve 10 is equipped with the connection hole 101 for the cooperation that is connected with spanner, connection hole 101 For interior hexagon, by allen wrench with couple the mating of hole 101, a coupling sleeve 10 can be realized and be quickly connected and fixed Onto regulating wheel 8.The rear end of regulating wheel 8 is to lean on gun body 5, flaring is formed in the rear end of installation cavity, after coupling sleeve 10 Distal process goes out and is located in the flaring, after coupling sleeve 10 is threadedly coupled together with regulating wheel 8, realizes coupling sleeve 10 and regulating wheel 8 axially position in gun body 5.

See Fig. 5, regulating wheel 8 includes foreign steamer 81 and columnar inner cylinder 82, and foreign steamer 81 is rubber or plastic material, foreign steamer 81 It is moulded in the periphery of inner cylinder 82.Inner cylinder 82 and moving member 12 are brass material, are provided on moving member 12 and coupling sleeve 10 External screw thread outstanding, moving member 12 and coupling sleeve 10 are by the internal screw thread thread connection in external screw thread and inner cylinder 82.

It is plugged with push rod 11 in 12 internal clearance of moving member, sees Fig. 3, the front end of push rod 11 forms the protruding head of an enlarged diameter type 111, which can be blocked in the front end of moving member 12.It is pitched at 111 position of protruding head at there is prong 112 on push rod 11 The bottom surface of mouth 112 is inclined-plane, and 112 fork-join of prong is on trigger 6.Push rod 11 is hollow structure, and shank 3 along axial gap is inserted It connects in push rod 11.See Fig. 2, lug 31 is equipped on shank 3, lug 31 is located at the rear side of moving member 12, in convex on shank 3 The opposite sides of ear 31 is respectively sleeved on a washer 32, and the rear end of push rod 11 passes through moving member 12 and is resisted against front side washer 32 On, front end and the rear side washer 32 of above-mentioned spring 33 lean.Under the promotion of spring 33, front end and 6 phase of trigger of push rod 11 It contacts, front end of the protruding head 111 far from moving member 12 on push rod 11.Trigger 6 drives the axial of shank 3 to transport by push rod 11 It is dynamic, so that shank 3 be made to be separated with needle cap 1.

See Fig. 5, strip-shaped hole 121 is provided in moving member 12, the periphery of the part in strip-shaped hole 121 is inserted on push rod 11 Face matches with the inner peripheral surface of strip-shaped hole 121, so that moving member 12 is realized and the socket between push rod 11 cooperates Moving member 12 is relatively circumferentially fixed, so that moving member 12 can be axially moved when rotation regulating wheel 8.

In Fig. 1, the upper end of trigger 6 is hinged at the hinge joint 52 in gun body 5, and hinge joint 52 is located at the adjusting in gun body 5 At 51 position of chamber, long mouth 53 is equipped at the downside position of gun body 5, trigger 6 reaches the outside of installation cavity from the long mouth 53. Bridge joint has a pair of of inclined plate 54 at 51 position of adjusting cavity in gun body 5, and inclined plate 54 is usually obliquely arranged in gun body 5, this Two inclined plates 54 block the opposite sides in the hinge joint 52.

This foam gun in operation, rotates regulating wheel 8, changes the position of 12 front end of moving member.When the front end of moving member 12 When inconsistent with the front end of the push rod 11 of initial position, under the restriction effect of moving member 12, trigger 6 can not be pulled, hair Bubble rifle, which is in, to be forbidden in working condition.When the front end flush of the front end of moving member 12 and regulating wheel 8, trigger 6 can be pulled Dynamic amplitude is maximum, and foam gun is enabled to generate maximum foaming agent flux.When pulling trigger 6 backward, trigger 6 pushes push rod 11, push rod 11 pushes shank 3 to overcome the elastic force of spring 33 backward by washer 32, and keeps the front end of shank 3 de- with 1 phase of needle cap It opens, for foaming agent ejection.After unclamping trigger 6, under the action of 33 elastic force of spring, shank 3 moves forward, and shank 3 drives push rod 11 It moves forward and trigger 6 is resetted, to pull trigger 6 again.

Claims

1. a kind of foam gun, comprising:

Gun body has adjusting cavity；

2. foam gun according to claim 1, which is characterized in that shank is supported using regulating wheel as axial, shank gap Ground passes through moving member.

3. foam gun according to claim 2, which is characterized in that be equipped with coupling sleeve in the rear end of regulating wheel, couple inserting It connecing in set installation cavity in gun body, one end of spring is pressed against on coupling sleeve by steel ball, and the other end is connected with shank, Shank, which is worn, to be connect in regulating wheel.

4. foam gun according to claim 3, which is characterized in that penetrating, the front end of coupling sleeve before and after the installation cavity It is threadedly coupled with regulating wheel, the coupling sleeve and regulating wheel after connection are realized in gun body realizes axially position.

5. foam gun according to claim 4, which is characterized in that coupling sleeve is hollow, and its rear end is cecum, which is located at In gun body, spring and steel ball are located in coupling sleeve, and the rear end face of coupling sleeve is equipped with the connection for the cooperation that is connected with spanner Hole.

6. foam gun according to claim 4, which is characterized in that regulating wheel includes foreign steamer and columnar inner cylinder, foreign steamer For non-metallic material, inner cylinder is metal material, the moving member and coupling sleeve and inner cylinder thread connection.

7. foam gun according to claim 2, which is characterized in that be plugged with push rod, shank edge in moving member internal clearance It is plugged in push rod to axial gap, trigger is stretched to for mutually contacting with trigger in the front end of push rod, and trigger makes shank by push rod It is separated with needle cap, the position limiting structure for limiting push rod axial direction moving distance is equipped between push rod and moving member.

8. foam gun according to claim 7, which is characterized in that be equipped with lug on shank, lug is located at moving member Rear side, the rear end of push rod pass through moving member and with lug axial action.

9. foam gun according to claim 7, which is characterized in that be equipped with prong in the front end of push rod, which exists On trigger；Moving member realizes that moving member is opposite circumferentially fixed and the socket between push rod cooperates.

10. foam gun according to claim 1, which is characterized in that trigger is hinged at the hinge joint in gun body, in gun body On at adjusting cavity position bridge joint have a pair of of inclined plate, this blocks the opposite sides in hinge joint to inclined plate.