CN202137080U - Adjusting and locking device for PU (polyurethane) spray gun - Google Patents
Adjusting and locking device for PU (polyurethane) spray gun Download PDFInfo
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- CN202137080U CN202137080U CN201120113132U CN201120113132U CN202137080U CN 202137080 U CN202137080 U CN 202137080U CN 201120113132 U CN201120113132 U CN 201120113132U CN 201120113132 U CN201120113132 U CN 201120113132U CN 202137080 U CN202137080 U CN 202137080U
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- rifle body
- adjusting
- rod component
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Abstract
An adjusting and locking device for a PU (polyurethane) spray gun belongs to the technical field of liquid injectors. The adjusting and locking device for the PU spray gun comprises a gun body (1), a gun barrel (14), a nozzle (15), a trigger (8) for controlling and adjusting the flow of a gap filler, and an ejector rod component (7) driven by the trigger, wherein an ejector pin at the front end of the ejector rod component is in hermetical contact with the inner wall of the nozzle, chemical agent under pressure can enter into the gun body through an adapter (11), one end of a hollow dual-head screw rod is fixed on the gun body through threaded connection, the middle of the hollow dual-head screw rod is an outer-hexagonal boss, an adjusting screw nut is sleeved on the other end of the hollow dual-head screw rod, the ejector rod component passes through the inner hole of the dual-head screw rod, and a small pressure spring is positioned between the ejector rod component and the adjusting screw nut. In the utility model, axial moving is achieved by rotating the adjusting screw nut, so as to asjust the space between the adjusting screw nut and the trigger, further control the rotating angle of the trigger, and since the motion of the adjusting screw nut is set within an efficient range, the reliable security and the service performance can be ensured.
Description
Technical field
The utility model belongs to the liquid ejector technical field, is specifically related to PU foam gap filler spray gun.
Background technology
Foam gap filler (PU foam) is claimed foamed glue again, and the shape that is in a liquid state is contained in inside to be had in the aerosol filling of pressure; The airborne steam foamed solidification of back dependence gushes out; Foam adhesion strength after the curing is big, abscess is fine and close, except the most of construction material Teflon and the few materials such as concrete, fragment of brick, metal alloy, plastics, woodwork and glass etc. are all had good bond effect, reaches good sealing, insulation, sound insulation, antidetonation, corrosion-resistant, waterproof, insulation effect; And cost is low; Easy operating, simple and fast, practical; Be the first-selection of door and window installing, plug-hole joint filling, thereby the PU foam gap filler particularly obtain using more and more widely at building field.
In operating process, be equipped with spray gun usually and reach the purpose that is implemented into each target accurately and efficiently.The structure of spray gun is generally by the trigger of rifle body, gun barrel, nozzle, control and regulation gap filler flow be positioned at the rifle body and be made up of the push rod thimble assembly that trigger drives.Usually at the end of caulking gun, adopt threaded screw rod to regulate the aperture of spray gun, but the aperture governor motion of spray gun is not provided with caution sign or stopping means, the ubiquity potential safety hazard at present.
The utility model content
In use exist because of regulating the improper accidental bodily injury's who causes potential safety hazard for overcoming the prior art spray gun, and have complex structure, assembling and regulate the shortcoming and defect of effort has limited the application of spray gun in some specific (special) requirements and occasion.The utility model provides a kind of potential safety hazard scheme of effective solution spray gun aperture governor motion, and the utility model spray gun avoids relating to the harm to the person, and convenient the installation realized easy adjustment and locking.
To above essential technique problem, the corresponding technical solution scheme of the utility model is:
A kind of adjusting locking device of PU spray gun comprises the trigger of rifle body, gun barrel, nozzle, control and regulation gap filler flow and the push rod component that is driven by trigger, and the thimble that is positioned at the push rod component front end contacts with the inner wall sealing of nozzle; There is the chemicals of pressure to get in the rifle body through adapter; It is characterized in that trigger is connected in the rifle body, the middle part has the kidney slot that can supply thimble to pass through, and rifle body end is provided with interior hexagonal holding screw; Holddown spring is enclosed within the right-hand member of push rod component; Holddown spring elastic force puts between push rod component and the interior hexagonal holding screw, and the rifle body is provided with the double threaded screw that two ends are shaped on external screw thread, hollow, and double threaded screw one end is fixed in the rifle body through being threaded; The middle part is the outer-hexagonal boss, and the other end is socketed with adjusting nut.Push rod component is passed from the double threaded screw endoporus, and double threaded screw has the outer-hexagonal boss, and small pressure spring is between the outer-hexagonal boss and adjusting nut of double threaded screw.
The externally threaded middle part at said double threaded screw two ends is the outer-hexagonal boss, so that the degree of depth that screw rod screws in the rifle body and screws and limit screw rod screw-in rifle body with spanner.
Double threaded screw one end of the utility model hollow is fixed on the rifle body; The other end cooperates with the adjusting nut of one-sided indent; And be provided with small pressure spring therebetween; Realize its moving axially on screw rod through the rotation adjusting nut, thereby adjust the spacing of itself and trigger, and then the anglec of rotation of control trigger.And the scope of activities of adjusting nut is set in the effective scope, thereby guaranteed its reliable security and serviceability, realizes that aperture is regulated and locking.This structural entity is positioned at the axial middle part of spray gun, and is positioned at the belly of trigger, and under the small pressure spring elastic force effect between adjusting nut and the screw rod hexagonal boss, realizes the screw thread self-locking, makes adjusting nut can stably remain on required desired location.
Said adjusting nut is axial one-sided indent, and the nut outer ring is shaped on cross knurled.This easy design operator rotation adjusting nut, the internal thread of adjusting nut are used for cooperating with the external screw thread in the double threaded screw outside, realize that adjusting nut moves along screw axial.
Said double threaded screw is a hollow structure, and the thimble assembly of being convenient to spray gun can therefrom pass, and the screw thread at two ends is used for respectively cooperating with rifle body, adjusting nut, plays effect fixing and that support.The degree of depth that screw rod screws in the rifle body is fixed and is limited in reinforcing when the outer-hexagonal boss at middle part makes things convenient for screw rod to screw in the rifle body.
Compare with the prior art foam lance, the utlity model has following beneficial effect:
1, because adjusting locking devices such as adjusting nut is positioned at rifle body middle part; The scope of its move left and right is limited between trigger and the double threaded screw; Therefore solve the unexpected potential safety hazard of hurting sb.'s feelings and the unexpected ejection of foaming agent meanwhile taking place that ejects of governor motion part of common spray gun, ensured user's personal safety.
2, the adjusting nut concave side can be used to hold the outer-hexagonal boss of small pressure spring and double threaded screw, when adjusting nut moves backward, can guarantee the maximum rotation aperture that trigger is required.Otherwise, during the adjusting nut opposite spin, then can dwindle the spacing of adjusting nut and trigger, contact with trigger until adjusting nut, this moment, trigger can't move backward again, and the thimble assembly is in the lock state, and guarantees safety.
3, owing between adjusting nut and the double threaded screw small pressure spring is set, make adjusting nut easily to rotate, realize hommization one-handed performance easily.In addition, small pressure spring also makes the screw thread self-locking between adjusting nut and the double threaded screw, makes the position of adjusting nut keep stable, thereby guarantees the required aperture of trigger, makes the stability of flow of spray gun.
Description of drawings
Fig. 1 is the structural representation of the utility model PU spray gun.
Fig. 2 pulls the structural representation of trigger backward for the utility model PU spray gun.
Among Fig. 1-2: 1 is the rifle body; 2 is interior hexagonal holding screw; 3 is holddown spring; 4 is double threaded screw; 5 is small pressure spring; 6 is adjusting nut; 7 is push rod component; 8 is trigger; 9 are pin; 10 is jump ring; 11 is adapter; 12 is joint; 13 are threeway; 14 is gun barrel; 15 is nozzle; 16 is hex nut; 17 is sealing device; 18 is cylindrical spring.
The specific embodiment
Embodiment 1
Shown in accompanying drawing 1, the utility model embodiment PU spray gun comprises rifle body 1, gun barrel 14, nozzle 15, the trigger 8 of control and regulation gap filler flow and the push rod component 7 that is driven by trigger, has the chemicals of pressure to get in the rifle body through adapter 11.Rifle body 1 is the main body of PU spray gun, in order to hold like each function element such as adjusting nut 6, push rod component 7, double threaded screw 4, interior hexagonal holding screws 2.
Gun barrel 14 is the path of fluid ejection, and the front end of gun barrel is a nozzle 15, and nozzle is the outlet of PU foam gap filler.The thimble that is positioned at the push rod component front end contacts with the inner wall sealing of nozzle, is connected with threeway 13 between gun barrel and the rifle body, and the vertical direction mouth of threeway connects adapter 11.Three hex nuts 16 that stimulate the menstrual flow are connected on the rifle body; The vertical direction mouth of threeway is connected with adapter connector 12 through screw thread; The right-hand member of threeway 13 is provided with sealing device 17, can supply thimble to pass in the middle of the sealing device 17, prevents that the PU foam gap filler is excessive from the slit; Be provided with cylindrical spring 18 between threeway and the trigger 8, prevent that trigger from arbitrarily shaking.
Trigger 8 is positioned at adjusting nut 6 left sides; Its top has circular hole, 9 is connected in the rifle body with jump ring 10 through pinning, and pin 9 has the draw-in groove that cooperates with jump ring; Pass the circular hole on rifle body and trigger top; When trigger rotation, play the effect of fulcrum, jump ring 10 cooperates with pin, prevents that pin from endwisely slipping.Trigger 8 middle parts have kidney slot, can supply the thimble of push rod component to pass through, the on-off action that plays control and regulate the gap filler flow.
Rifle body end is provided with interior hexagonal holding screw 2, and holddown spring 3 is enclosed within the right-hand member of push rod component, and holddown spring 3 elastic force put on push rod component, impose on push rod component to elastic force through interior hexagonal holding screw, and then compresses thimble and nozzle plays sealing effectiveness.
Double threaded screw 4 is positioned at the middle part of rifle body, and the one of which end is connected and fixed on the rifle body, and the other end cooperates with adjusting nut.Double threaded screw is a hollow structure, so that the thimble assembly of spray gun can therefrom pass; The screw thread at two ends is used for respectively cooperating with rifle body, adjusting nut, plays effect fixing and that support.The outer-hexagonal boss at middle part then is the degree of depth of fixing and limit screw rod screw-in rifle body when making things convenient for screw rod to screw in the rifle body.
Double threaded screw one end is fixed in the installing hole of rifle axon to the middle part through being threaded; The other end is socketed with adjusting nut 6; Push rod component is passed from the double threaded screw endoporus, and a small pressure spring 5 is between the outer-hexagonal boss and adjusting nut of double threaded screw, under the elastic force effect of small pressure spring; Realize the screw thread self-locking, make adjusting nut can stably remain on required desired location.
Adjusting nut 6 is positioned at the left side of double threaded screw 4 and the right side of trigger 8; Rise and regulate aperture, locking trigger function; Tapped adjusting nut is the structure of axial one-sided indent, and the nut outer ring has cross knurled, convenient rotation; The internal thread of adjusting nut 6 is used for cooperating with the external screw thread in the double threaded screw outside, realizes that adjusting nut moves along screw axial.
The adjusting nut concave side can be used to hold the hexagonal cylinder of small pressure spring and double threaded screw, when adjusting nut moves backward, can guarantee the maximum rotation aperture that trigger is required.Otherwise, during the adjusting nut opposite spin, then can dwindle the spacing of adjusting nut and trigger, contact with trigger until adjusting nut, this moment, trigger can't move backward again, and the thimble assembly is in the lock state, and guarantees safety.
The course of work that the utility model spray gun is regulated locking is following:
The PU foam gap filler gets into threeway 13 through adapter 11, joint 12, is full of till the nozzle 15 through gun barrel 14 always.Shown in accompanying drawing 2, cocking 8 backward, and trigger 8 drives push rod component 7 integral body and moves backward, make the thimble of push rod front end break away from and the contacting of nozzle 15 inwalls, and reserve the passage that the PU foam gap filler sprays.
Shown in accompanying drawing 1; When rotation adjusting nut 6 moved forward, adjusting nut 6 reduced with the spacing of trigger 8 gradually, can in setting range, control the angle of pulling of trigger 8 as required arbitrarily; Adjusting nut 6 plays the effect of regulating aperture, contacts with trigger 8 up to adjusting nut 6.At this moment, trigger 8 has broken away from and the contacting of push rod component 7, and can not pull push rod component 7 more backward, and adjusting nut 6 has played the locking effect.
In adjustment process; No matter adjusting nut 6 is to move forward or backward; All can only in the effective range that trigger 8 and double threaded screw 4 are set between the two, move the back, thereby can avoid effectively causing the unexpected security incident that sprays of PU foam gap filler because of accommodative excess.In addition, because the holddown spring 3 of this structure no longer directly acts on adjusting nut 6, feel is light when making installation, adjusting.
In sum; After those of ordinary skill in the art reads the utility model file; Need not creative mental labour according to the technical scheme of the utility model and technical conceive and make other various corresponding conversion scheme, all belong to the scope that the utility model is protected.
Claims (3)
1. the adjusting locking device of a PU spray gun comprises rifle body (1), gun barrel (14), nozzle (15), the trigger (8) of control and regulation gap filler flow and the push rod component (7) that is driven by trigger, and the thimble that is positioned at the push rod component front end contacts with the inner wall sealing of nozzle; There is the chemicals of pressure can pass through in adapter (11) the entering rifle body; It is characterized in that trigger is connected in the rifle body, the middle part has the kidney slot that can supply thimble to pass through, and rifle body end is provided with interior hexagonal holding screw (2); Holddown spring (3) is enclosed within the right-hand member of push rod component; Holddown spring elastic force puts between push rod component and the interior hexagonal holding screw, and the rifle body is provided with the double threaded screw (4) that two ends are shaped on external screw thread, hollow, and double threaded screw one end is fixed in the rifle body through being threaded; The other end is socketed with adjusting nut (6); Push rod component is passed from the double threaded screw endoporus, and double threaded screw has the outer-hexagonal boss, and small pressure spring (5) is between the outer-hexagonal boss and adjusting nut of double threaded screw.
2. the adjusting locking device of PU spray gun as claimed in claim 1, the externally threaded middle part that it is characterized in that said double threaded screw two ends is the outer-hexagonal boss, so that the degree of depth that screw rod screws in the rifle body and screws and limit screw rod screw-in rifle body with spanner.
3. the adjusting locking device of PU spray gun as claimed in claim 2 is characterized in that said adjusting nut is axial one-sided indent, and the nut outer ring is shaped on cross knurled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120113132U CN202137080U (en) | 2011-04-18 | 2011-04-18 | Adjusting and locking device for PU (polyurethane) spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120113132U CN202137080U (en) | 2011-04-18 | 2011-04-18 | Adjusting and locking device for PU (polyurethane) spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202137080U true CN202137080U (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120113132U Expired - Fee Related CN202137080U (en) | 2011-04-18 | 2011-04-18 | Adjusting and locking device for PU (polyurethane) spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202137080U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284027A (en) * | 2017-07-28 | 2017-10-24 | 中国科学技术大学 | A kind of drive device of control airbrush working condition |
| CN109518921A (en) * | 2018-12-28 | 2019-03-26 | 朱小菊 | Floor tile beauty stitches device |
| WO2020207103A1 (en) * | 2019-04-12 | 2020-10-15 | 浙江火山机械有限公司 | Spray gun having convenient switch switching safety |
-
2011
- 2011-04-18 CN CN201120113132U patent/CN202137080U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107284027A (en) * | 2017-07-28 | 2017-10-24 | 中国科学技术大学 | A kind of drive device of control airbrush working condition |
| CN107284027B (en) * | 2017-07-28 | 2023-03-10 | 中国科学技术大学 | Driving device for controlling working state of spray pen |
| CN109518921A (en) * | 2018-12-28 | 2019-03-26 | 朱小菊 | Floor tile beauty stitches device |
| WO2020207103A1 (en) * | 2019-04-12 | 2020-10-15 | 浙江火山机械有限公司 | Spray gun having convenient switch switching safety |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20170418 |