CN209465287U - Foam gun flow-rate adjusting device - Google Patents

Abstract

The utility model is settled sth. according to policy or law a kind of foam gun flow-rate adjusting device, solves the problems, such as the relative complex inconvenient installation of flow regulator in present foam gun, the foam gun includes gun body and the gun barrel and trigger that are connected in gun body, shank is provided in gun barrel, trigger is connected with shank, adjusting cavity is provided in gun body, this flow regulator is arranged in adjusting cavity, it is defined for the amplitude of pulling to trigger, structure includes being rotatably arranged at the regulating wheel adjusted in rifle, it is characterized in that, the connection of regulating wheel internal screw thread has moving member, shank passes through moving member and is elastically supported in regulating wheel, it rotates regulating wheel and moves axially moving member, it is defined with the amplitude of pulling to trigger.

Description

Foam gun flow-rate adjusting device

Technical field

The utility model relates to a kind of foam gun for spray coating foaming agent, more particularly on foam gun for realizing The regulating device that flow is adjusted.

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.

Utility model content

The utility model technical issues that need to address are: providing a kind of foam gun flow-rate adjusting device, the regulating device Structure it is simple, the convenient installation to foam gun.

Solve the technical solution that the technical problem is taken: a kind of foam gun flow-rate adjusting device, the foam gun Including gun body and the gun barrel and trigger that are connected in gun body, it is provided with shank in gun barrel, trigger is connected with shank, in gun body It is provided with adjusting cavity, this flow regulator is arranged in adjusting cavity, is defined for the amplitude of pulling to trigger, structure packet Include the regulating wheel for being rotatably arranged at and adjusting in rifle, which is characterized in that the connection of regulating wheel internal screw thread has moving member, and shank, which passes through, to be moved Moving part and be elastically supported in regulating wheel, rotate regulating wheel and move axially moving member, with to trigger pull amplitude into Row limits.

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 gun barrel front end At the liquid outlet of set needle cap, to close liquid outlet；When pulling trigger backward, front end and the needle cap liquid outlet of shank mutually take off It opens, and foaming agent is sprayed from liquid outlet.After moving member axial position changes, by moving member to the blocking of trigger come The amplitude that trigger is pulled is limited, the size that trigger pulls amplitude determines the flow of foaming agent at work.

Further, it is provided with installation cavity on rear side of regulating wheel in gun body, coupling sleeve and regulating wheel are connected fixation Together, coupling sleeve is located in installation cavity, and the front end of spring acts on shank, and rear end is pressed against on coupling sleeve by steel ball. By the way that the coupling sleeve axially supported for shank is arranged in regulating wheel, the axial direction support to shank is facilitated, while can realize tune Section wheel stablizes connection in gun body.In rotation, coupling sleeve follows to be rotated in gun body regulating wheel together, and regulating wheel is to couple Set is used as shaft, and spring is along acting axially on coupling sleeve in addition, and the stability of coupling sleeve itself is good, so that regulating wheel exists The stability rotated in adjustment process is good.

Further, penetrating before and after the installation cavity, the front end of coupling sleeve is threadedly coupled with regulating wheel, is linked together Coupling sleeve and regulating wheel axially position is realized in gun body.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 is axially moved shank by push rod, sets between push rod and moving member There is the position limiting structure for limiting push rod axial direction moving distance.The position limiting structure, which can be formation plush copper or bolt on push rod, to be come The blocking with moving member front end is realized, to realize the restriction to push rod axial direction moving distance.It the front end of moving member can also be direct Trigger is stopped, push rod axial direction moving distance is defined to realize, the front end of moving member is the position limiting structure.It is logical Setting push rod is crossed to realize the transmitting of trigger power, the driving convenient for trigger to shank, and be arranged in push rod open-work to Shank is connect to wear, so that structural compactness is good, facilitates trigger to the axially driving of shank.Shank, push rod and moving member is coaxial Setting, for regulating wheel when driving moving member axial movement, the radial stability of moving member is good, and part easy to remove is smoothly axially transported It is dynamic, 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.Plush copper can be made to be blocked in shifting by the way that plush copper is arranged in the front end of push rod The front end of moving part 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 utility model has the following beneficial effects: in this flow regulator, since shank is directly elastically supported at In regulating wheel, allows regulating wheel only to need rear side with gun body for support, adjusting cavity front side and regulating wheel need not be taken into consideration Between matching relationship, adjusting cavity itself shape design circumscribed factor it is small, convenient for designing the foam gun of novel appearance.It adjusts Section chamber itself can be designed larger, and the matching requirements between regulating wheel and gun body, so that structure letter between regulating wheel and gun body It is single, it is easy to assembly.It since shank passes axially through regulating wheel, and is resiliently supported in regulating wheel, the knot of this flow regulator Structure compactedness 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 with this flow regulator.

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

It is described further so that this flow regulator is applied on foam gun as an example below.

In conjunction with Figure of description, foam gun includes gun body 5, gun barrel 2, adapter 4 and hand handle 7, and gun body 5 is metal material, Gun barrel 2 is 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, tool in adapter 4 There is 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, and needle cap 1 is equipped with Fluid hole passes through the outflow and cut-off that foaming agent is realized whether cooperation between shank 3 and fluid hole.At the middle part of gun body 5 It is equipped with adjusting cavity 51 at position, can be rotatably set regulating wheel 8 in adjusting cavity 51.It stretches the rear end of shank 3 from the gun barrel 2 Out, it 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, To drive the front end of shank 3 to disengage with 1 phase of needle cap.

Main function components of the regulating wheel 8 as this flow regulator, regulating wheel 8 are projected into the outside of adjusting cavity 51, The outer peripheral surface of 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 is with gun body 5 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 cylinder 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 generate axis To movement, moving member 12 pulls amplitude itself or by what other components can limit trigger 6, goes out liquid so as to limit foam gun Flow.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 (9)

1. a kind of foam gun flow-rate adjusting device, the foam gun includes gun body and the gun barrel and trigger that are connected in gun body, Shank is provided in gun barrel, trigger is connected with shank, and adjusting cavity is provided in gun body, and the setting of this flow regulator is being adjusted It saves intracavitary, is defined for the amplitude of pulling to trigger, structure includes being rotatably arranged at the regulating wheel adjusted in rifle, special Sign is that the connection of regulating wheel internal screw thread has moving member, and shank passes through moving member and is elastically supported in regulating wheel, and rotation is adjusted It takes turns and moves axially moving member, be defined with the amplitude of pulling to trigger.

2. foam gun flow-rate adjusting device according to claim 1, which is characterized in that in the rear side of regulating wheel in gun body It is provided with installation cavity, coupling sleeve is connected with regulating wheel and is fixed together, and coupling sleeve is located in installation cavity, the front end effect of spring On shank, rear end is pressed against on coupling sleeve by steel ball.

3. foam gun flow-rate adjusting device according to claim 2, which is characterized in that it is penetrating before and after the installation cavity, The front end of coupling sleeve is threadedly coupled with regulating wheel, and the coupling sleeve and regulating wheel being linked together realize axially position in gun body.

4. foam gun flow-rate adjusting device according to claim 2, which is characterized in that coupling sleeve is hollow, and its rear end is blind End, the rear end are located in gun body, and spring and steel ball are located in coupling sleeve, and the rear end face of coupling sleeve is equipped with for being connected with spanner Connect the connection hole of cooperation.

5. foam gun flow-rate adjusting device according to claim 2, which is characterized in that regulating wheel includes foreign steamer and cylindrical shape Inner cylinder, foreign steamer is non-metallic material, and inner cylinder is metal material, the moving member and coupling sleeve and inner cylinder thread connection.

6. foam gun flow-rate adjusting device according to claim 1, which is characterized in that be plugged in moving member internal clearance Push rod, shank along axial gap are plugged in push rod, and trigger is stretched to for mutually contacting with trigger in the front end of push rod, and trigger passes through Push rod is axially moved shank, and the position limiting structure for limiting push rod axial direction moving distance is equipped between push rod and moving member.

7. foam gun flow-rate adjusting device according to claim 6, which is characterized in that be equipped with lug, lug on shank Positioned at the rear side of moving member, the rear end of push rod pass through moving member and with lug axial action.

8. foam gun flow-rate adjusting device according to claim 6, which is characterized in that be equipped with fork on the front end of push rod Mouthful, the prong fork-join is on trigger；Moving member realizes that moving member is opposite circumferentially fixed and the socket between push rod cooperates.

9. foam gun flow-rate adjusting device according to claim 1, which is characterized in that trigger is hinged on hinged in gun body At point, bridge joint has a pair of of inclined plate at adjusting cavity position in gun body, this blocks the opposite sides in hinge joint to inclined plate.