CN206954845U - A kind of powder pump - Google Patents

Abstract

A kind of powder pump, including bottle and bottle cap, bottle cap is included with nozzle one by cap and the enclosing cover being set in outside by cap, by being equipped with piston tube in cap, piston tube includes outer tube and the inner tube being arranged in outer tube, wherein, outer tube is provided with the nozzle two corresponding with nozzle one, hybrid chamber is formed between the upper end of inner tube and the upper end of outer tube, nozzle two is connected with hybrid chamber, the lateral surface of inner tube is provided with air channel along the axial direction of inner tube, air channel is connected with hybrid chamber, air channel is gradually reduced by the width of place near to the upper end, position on the outside of outer tube close to lower end is also arranged with piston chamber and the piston abutted against with the bore wall of the piston bore of piston chamber and top, the outer wall top tape limited location groove of piston bore, the bottom land of stopper slot is provided with sealing ring, the bottleneck of bottle mutually compresses with sealing ring, piston chamber is mutually fixed with bottle outer wall.So ensureing the situation of powder pump normal operation, also only needing to use sealing ring at one, so as to also ensure that good sealing effectiveness.

Description

A kind of powder pump

Technical field

It the utility model is related to powder distribution field, more particularly to a kind of powder pump.

Background technology

Powder pump is a kind of similar and spray gun, using pressure difference by the equipment of gas and powder mixing jetting.

For example, Publication No. CN101879966A Chinese patent《Dry powder pump》Disclose a kind of dry powder pump.A kind of dry powder Pump, it includes：One bottle, bottle intracavity are used for containing powder；One lid, it is connected on bottle oral area, and forms plunger shaft； One piston, driven by head cap and be installed in so as to slide up and down in plunger shaft, form air compressing mechanism；One elasticity member Part, make piston that there is reset trend；It is characterized in that：One check valve is arranged in bottle oral area, the air inlet of check valve and work Chamber connection is filled in, and the gas outlet of check valve connects with bottle intracavity；One hollow delivery pipe, upper end connect with the spout on head cap It is logical, and lower end extends to bottom of bottle vicinity through bottle oral area, is directly or indirectly connected with bottle intracavity；Its is rational in infrastructure Practicality, powder and gas mixing is easily set to spray dry powder pump, favorable sealing property is easy for operation, light, is easy to carry.

It is disadvantageous in that the powder pump is compressed by air, is that power sprays powder using thrust gas, this machine Structure is high to the sealing requirements of whole powder pump, and the connection of each part must assure that between air-tightness, especially piston and lid The connection of many places such as the connection of sealing ring, check valve and Container and connecting tube between sealing ring, piston tube and lid cover uses Seal, once the gas leakage powder pump can not all use, therefore need a kind of powder pump for being tightly connected and, leaking air may lack less.

Utility model content

The purpose of this utility model is to provide a kind of powder pump, its complete it is normal in the case of, have again good close Seal effect.

Above-mentioned purpose of the present utility model technical scheme is that：A kind of powder pump, including bottle and Bottle cap, the bottle cap are included with nozzle one by cap and the enclosing cover being set in outside by cap, described by cap being equipped with piston tube, The piston tube includes outer tube and the inner tube being arranged in outer tube, wherein, the outer tube is provided with the spray corresponding with nozzle one Mouth two, hybrid chamber is formed between the upper end of said inner tube and the upper end of outer tube, the nozzle two is connected with hybrid chamber, described interior Axial direction of the lateral surface of pipe along inner tube is provided with air channel, and the air channel is connected with hybrid chamber, and the air channel is close to upper Width at end is gradually reduced, and the position on the outside of the outer tube close to lower end is also arranged with piston chamber and the piston bore with piston chamber Bore wall and the piston that abuts against of top, the outer wall top tape limited location groove of the piston bore, the bottom land of the stopper slot be provided with Sealing ring, the bottleneck of the bottle mutually compress with sealing ring, and the piston chamber is mutually fixed with bottle outer wall.

By using above-mentioned technical proposal, bernoulli principle is so utilized so that powder pump is ensureing the situation of normal work Under, the position using sealing ring is greatly reduced, so as to also just reduce the probability for airtight sex chromosome mosaicism occur.

Preferably, the outer tube is provided with retainer ring one in the lower section of nozzle two, described to be provided with fixing groove one by cap inwall, The fixing groove one matches with retainer ring one.

By using above-mentioned technical proposal, such retainer ring one can be embedded into fixing groove one, so as to both improve significantly Both installation effectiveness, meanwhile, also ensure outer tube and by the fix tightly soundness between cap.

Preferably, spring groove is provided with the wall of the plunger shaft of the piston chamber, is set between the retainer ring one and spring groove There is spring.

, so can be after being pressed by cap using the reconstitution properties of spring by using above-mentioned technical proposal, it can Promptly restore.Moreover, spring groove is acted on spring limited location, it is curved so as to prevent spring to occur during compression recovery The problem of bent abnormal deformation.

Preferably, the outer peripheral face of the outer tube is provided with supports block in the lower section of retainer ring one, and the supports block is the week along outer tube Face is equally distributed, is abutted against on the inside of the supports block and spring.

By using above-mentioned technical proposal, such supports block can prop up the inner side of spring, so as to further ensure spring Stretched along rectilinear direction.

Preferably, the outer peripheral face of the outer tube is provided with some draw runners, and the plunger shaft inner peripheral surface of the piston bore is provided with The chute to match with draw runner.

By using above-mentioned technical proposal, in the engagement process so between draw runner and chute, can be effectively prevented from With piston chamber relative rotation occurs for outer tube, has so also further ensured that the sealing effectiveness between outer tube and piston chamber.

Preferably, the outer peripheral face of the outer tube bottom is provided with serrated slot one, the inner surface of the piston be provided with The serrated slot two that serrated slot one matches.

By using above-mentioned technical proposal, the mutual cooperation between serrated slot one and serrated slot two, ensureing outer tube and work In the case of effective fixation between plug, sealing between the two is also substantially increased.

Preferably, the lower collar extension edge of the piston extends internally supports piece, the lower edge of the outer tube provided with annular With being abutted against to piece.

By using above-mentioned technical proposal, during abutting against so in outer tube and to piece, outer tube have effectively achieved With the synchronism of piston, and air-tightness between piston and outer tube can be also improved to piece.

Preferably, the inner side of the outer tube is provided with positive stop strip two, and the positive stop strip two is at the notch of air channel.

It is outer so as to ensure that so by the cooperation between positive stop strip two and air channel by using above-mentioned technical proposal The synchronism of pipe and inner tube, and be advantageous to improve the sealing effectiveness between outer tube and inner tube.

In summary, the utility model has the advantages that：

1st, using bernoulli principle, the normal work of powder pump is ensure that, while decreases the position sealed using sealing ring Put, so as to substantially increase sealing effectiveness；

2nd, the operating efficiency of powder pump can be greatly improved to being restored by cap using spring；

3rd, the fixation between outer tube and piston, and outer tube and inner tube, can not only so greatly improve between the two Fixed effect, so as to also further increase the overall sealing property of powder pump.

Brief description of the drawings

Fig. 1 is the structural representation of the powder pump of embodiment one；

Fig. 2 is the structural representation by cap of embodiment one；

Fig. 3 is the front view of the powder pump of embodiment one；

Fig. 4 is the sectional view at Fig. 3 A-A；

Fig. 5 is the partial enlarged drawing at Fig. 4 B；

Fig. 6 is the structural representation of the piston tube of embodiment one；

Fig. 7 is the structural representation of the piston chamber of embodiment one；

Fig. 8 is the structural representation of the piston of embodiment one；

Fig. 9 is the structural representation of the outer tube of embodiment one；

Figure 10 is the sectional view at Fig. 9 C-C；

Figure 11 is the structural representation by cap of embodiment two；

Figure 12 is the sectional view of the powder pump of embodiment two；

Figure 13 is the partial enlarged drawing at the D of embodiment two；

Figure 14 is the piston outer tube of embodiment two and the explosive view of turncap；

Figure 15 is the sectional view of the powder pump of embodiment three.

Embodiment

Reference：1st, dust cap；2nd, bottle；3rd, bottle cap；31st, enclosing cover；32nd, by cap；321st, nozzle one；322nd, bulge loop； 3221st, fixing groove one；323rd, positive stop strip one；324th, convex edge；3241st, neck；33rd, sealing ring；34th, piston chamber；341st, plunger shaft； 3411st, chute；342nd, piston bore；3421st, stopper slot；343rd, spring groove；35th, piston tube；351st, outer tube；3511st, retainer ring one； 3512nd, nozzle two；3513rd, ring is completely cut off；3514th, hybrid chamber；3515th, draw runner；3516th, supports block one；3517th, serrated slot one；3518、 Fixing groove two；3519th, positive stop strip two；35111st, guide groove；35112nd, spacing ring；35112-1, limited mouth；352nd, inner tube； 3521st, air channel；3522nd, guide hole；3523rd, supports block two；3524th, retainer ring two；3525th, convex mouth；3525-1, lines；353rd, revolve Lid；3531st, it is oriented to traveller；3532nd, diaphragm seal one；3533rd, diaphragm seal two；36th, piston；361st, serrated slot two；362nd, to piece； 37th, spring；38th, conduit；381st, screen cloth；382nd, pipe close.

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment one,

As shown in Figure 1 with shown in accompanying drawing 2, a kind of powder pump, it includes dust cap 1, bottle 2 and bottle cap 3.Wherein, bottle cap 3 Including by cap 32 and being set in by the enclosing cover 31 outside cap 32.And dust cap 1 snaps connection with enclosing cover 31, it is snapped connection to be existing Technology, no longer write in detail herein.In addition, by nozzle 1 is carried on the outer peripheral face of cap 32, the nozzle 1 communicates with inside, and Bulge loop 322 is provided with close to the position at top by the inner peripheral surface of cap 32, the inner side of bulge loop 322 is provided with one close to the position of lower edge The fixing groove 1 of annular.

Meanwhile as shown in Figures 3 to 5, by piston tube 35 is equipped with cap 32, piston tube 35 includes the He of outer tube 351 Inner tube 352.Wherein, retainer ring 1, retainer ring 1 and fixing groove 1 are carried on the upper end side face of outer tube 351 Match, it is achieved thereby that by the interconnection between cap 32 and outer tube 351.Meanwhile outer tube 351 is a hollow cylinder, Lower end is opening, and a nozzle 2 3512 is provided with the side face of upper end, the bore of nozzle 2 3512 and nozzle 1 It is corresponding and coaxial.An isolation ring 3513 is provided with the inner peripheral surface of outer tube 351, it is located at the lower section of nozzle 2 3512 and close to spray The lower edge of mouth 2 3512, its cavity completely cut off between ring 3513 and the top of outer tube 351 is hybrid chamber 3514, powder and air energy Enough mixing is carried out in hybrid chamber 3154 to be ejected.

In addition, as shown in accompanying drawing 4 to accompanying drawing 7, piston chamber 34 is also arranged with outside piston tube 35.Also, outer tube 351 is in solid The lower section for determining ring 1 is provided with draw runner 3515, and the draw runner 3515 is along the axially arranged of outer tube 351, the quantity of draw runner 3515 It can be determined according to actual conditions, be herein two, and be symmetrical arranged on the center of circle.Moreover, piston chamber 34 includes top Plunger shaft 341 and lower section piston bore 342, plunger shaft 341 and piston bore 342 communicate, and concentric, and plunger shaft 341 size is less than the size of piston bore 342.Both are available for piston tube 35 and passed through, and are set on the inner peripheral surface of plunger shaft 341 There is the chute 3411 to match with draw runner 3515.

Meanwhile the spring groove 343 of an annular, herein, retainer ring 1 and spring are provided with the upper collar extension of piston chamber 34 Spring 37 is provided between groove 343.The present embodiment uses spring 37 to be used as elastic original paper, also can select bullet according to actual conditions Property element.And the upper end of spring 37 and the bottom surface of retainer ring 1 abut against, and the bottom of spring 37 is embedded in bullet In spring groove 343.Moreover, the outer peripheral face of outer tube 351 sets some supports blocks 1, the number of supports block 1 below isolation ring 3513 Amount can determine that herein, the quantity of supports block is four according to actual conditions, and be on outer tube 351 axle center it is symmetrical, this Sample can play stabilization to spring 37, and double swerve occurs for spring 37 during preventing pressing.When piston tube 357 is by under During pressure and the upper bullet of reset, draw runner 3515, which is limited in chute 3411, to be slided, so as to also it is prevented that the phase of piston tube 357 Piston chamber 344 is rotated, avoids the generation of airtight sex chromosome mosaicism.

Furthermore as shown in accompanying drawing 6, accompanying drawing 9 and accompanying drawing 10, the inner peripheral surface of outer tube 351 has fixing groove below isolation ring 3513 2 3518, there is the positive stop strip 2 3519 of a bar shaped below fixing groove 2 3518, it is axial arranged along outer tube 351.Meanwhile inner tube 352 are inserted in outer tube 351, and its lateral surface is provided with air channel 3521, and the air channel is configured along the axial direction of inner tube 352 , positive stop strip 2 3519 is embedded in the notch edges of air channel 3521, rotation of the limitation inner tube 352 in outer tube 351.And air channel 3521 have one section of reducer close to the position of upper end, and the width of the air channel 3521 above reducer is gradually reduced.According to primary Exert sharp principle, gas gas flow rate increase after by reducer reduces and air pressure so that hybrid chamber 3514 is in bottle 2, shape Into vacuum.And the bottom of inner tube 352 is provided with guide hole 3522 along axis, guide hole 3522 runs through inner tube 352, when hybrid chamber 3514 is to bottle When vacuum is formed in 2, it can pass through for the powder in bottle 2.In addition, the both ends of inner tube 352 are provided with two annular supports blocks 2 3523, the supports block 2 3523 on the top of inner tube 352 is against on isolation ring 3513, and the supports block 2 3523 of the bottom of inner tube 352 is against outside In the interior edge of 351 times collar extensions of pipe, meanwhile, the lower section on the lateral surface of inner tube 352 positioned at supports block 2 3523 is additionally provided with retainer ring two 3524, retainer ring 2 3524 matches with fixing groove 2 3518.So that after inner tube 352 inserts outer tube 351, can be with outer tube 351 upper-lower position is mutually fixed.Guide hole 3522 is provided with convex mouth 3525 at the aperture of the bottom of inner tube 352, is carried on convex mouth 3525 Lines 3525-1, depending on lines 3525-1 can be by actual conditions, and conduit 38 is installed on convex mouth 3525, such lines 3525-1 can preferably be such that conduit 38 is fixed on 3525 on convex mouth, furthermore, conduit 38 is stretched into the powder in bottle 2.

Also, as shown in accompanying drawing 4, accompanying drawing 6 and accompanying drawing 8, outer peripheral face of the outer tube 351 close to bottom is provided with the saw of annular Teeth groove 1.Meanwhile the piston 36 of an annular is arranged with the lower end of outer tube 351, and the inner surface of piston is provided with sawtooth Groove 2 361, outer tube 351 are mutually fixed with piston 36 by agreeing between serrated slot 1 and serrated slot 2 361.Piston 36 Lower collar extension edge extends internally supports piece 362 provided with annular, and the lower edge of outer tube 351 abuts against with the upper surface to piece 362. The outer peripheral face of piston 36 is pressed in the bore wall of piston bore 342, and the upper end of piston 36 acts against the top of piston bore 342.

The operation principle of the powder pump:While overcoming the elastic force of spring 37 to press by cap 32 using human hand, work will be driven Plug pipe 35 and piston 36 link and moved into bottle 2, so as to which the space in bottle 2 can be compressed, force the gas of bottle 2 along logical Air drain 3521 is flowed into hybrid chamber 3514.According to bernoulli principle, gas passes through reducer, gas flow rate increase, so as to also add Air in fast hybrid chamber 3514 also accelerates outwards to flow, and such hybrid chamber 3514 is with respect to forming vacuum in bottle 2.Due to Pressure difference, and conduit is stretched into powder, the powder of storage sucks from conduit 38 along guide hole 3522 in such body 22 In hybrid chamber 3514, the gas mixing with the outflow of air channel 3521, sprayed along nozzle 2 3512, nozzle 1, and because of nozzle One 321 bores are small, form the structure of similar Venturi tube so that the gas of entrained powder sprays in diffused after mixing.Afterwards, After being removed Deng hand, after spring 37 and outside air are re-entered into bottle 2, powder pump is overall to return to original state again.

In order to further improve the air-tightness between piston chamber 34 and bottle 2, the outer wall top of piston bore 342 is also with a circle Stopper slot 3421, the bottom of stopper slot 3421 are provided with a sealing ring 33, when piston chamber 34 is connected with bottle 2, the bottleneck of bottle 2 It is against on sealing ring 33, strengthens the air-tightness between piston chamber 34 and bottle 2.

Embodiment two,

As shown in accompanying drawing 11 to accompanying drawing 14, a kind of powder pump, on the basis of embodiment one, in the inside top by cap 32 An annular convex edge 324 is provided with, and its convex edge 324 is provided with two on the symmetrical neck 3241 in the center of circle, meanwhile, correspond to A positive stop strip 1 is provided with by the inner peripheral surface of the bulge loop 322 of cap 32, it is located at the relative side of nozzle 1, and the limit Position bar 1 is into what is be configured along the axial direction by cap 32.The top of outer tube 351 is opening, and is set below opening Two inclined guide grooves 35111, and spiral cover 353 is installed in guide groove 35111.It 353 is a cylinder that spiral cover, which is, outside it Side wall be axially into a ladder, and be additionally provided with lateral wall two it is symmetrical be oriented to travellers 3531, be oriented to traveller 3531 pass through guide groove 35111 and are stuck in neck 3241.Spiral cover 353 lateral wall from top to bottom outward along have annular Diaphragm seal 1 and diaphragm seal 2 3533, it has certain elasticity, and lower end can expand outwardly, so as to diaphragm seal one 3532 lower edges can be mutually close to the inner peripheral surface of outer tube 351, and the lower edge of diaphragm seal 2 3533 can be with completely cutting off in ring 3513 Side face is mutually close to.Moreover, outer tube 351 also sets up a spacing ring 35112 in the lower section of guide groove 35111, and it which is provided with one The limited mouth 35112-1 of individual fan annular, and limited mouth 35112-1 is located at the side that outer tube 351 deviates from nozzle 2 3512.It is and spacing Bar 1 and nozzle 1 are on the axisymmetrical by cap 32, and positive stop strip 1 is through in limited mouth 35112-1.

When guiding traveller 3531 is located at the lower end of guide groove 35111, positive stop strip 1 abuts in limited mouth 35112-1 Side, the lower end of diaphragm seal 1 is pressed on the inner peripheral surface of outer tube 351, and the lower end of diaphragm seal 2 3533 is pressed on isolation On ring 3513, sealing effectiveness is formed, the inside isolation of nozzle 2 3512 and outer tube 351 is opened.Now formd in bottle 2 closed Space, the air in such bottle 2 just can not be extruded out, and also can not be just pressed down by cap 32, it is thus possible to Prevent by cap 32 by by mistake by.Moreover, when rotation abuts in limited mouth 35112-1 opposite side by cap 32 to positive stop strip 1, this When nozzle 1 and nozzle 2 3512 be aligned.It is stuck in during this because being oriented to traveller 3531 in neck 3241, so as to spiral cover 353 are driven rotation by cap 32, slide to upper end from the end of guide groove 35111, diaphragm seal 2 3533 is separated with isolation ring 3513, sprayed Mouth 2 3512 is connected with the inside of outer tube 351, and also can sprays powder from nozzle 2 3512 again, such spiral cover 353 Just have the function that powder switch pump, and prevented extraneous air from being communicated for a long time with bottle 2, and cause powder to make moist caking. And the scope of the anglec of rotation by cap 32 is limited by positive stop strip 1 and limited mouth 35112-1, prevent from rotating through more, make Neck 323 deforms, while also allows for the alignment of nozzle 1 and nozzle 2 3512.

Embodiment three,

As shown in Figure 15, a kind of powder pump, on the basis of embodiment one, conduit 38 is arranged to bend pipe, bend pipe Lower end is bent to the inwall direction of bottle 2, also, the bent portion of bend pipe seamlessly transits.During the use of powder pump, The unequal all class situations of powder distribution such as powder accumulation on powder agglomates or bottle internal face are can be potentially encountered in bottle, now outside turn Lid 31, conduit 38 is driven in bottle internal rotation, lump so as to smash and powder in bottle is evenly distributed.The present embodiment can be used only Rotary outer cover 31, relatively rock bottle 2 and be more beneficial for conveniently making powder in bottle be evenly distributed, while avoid opening bottle cap 3 again and make With powder in other tool contamination bottles.

Furthermore an internal perforated pipe plug 382 is also plugged with the lower end mouth of pipe of conduit 38, and the hole of pipe close 382 is to lead 2/3rds of the diameter of pipe 38, so powder can preliminarily be screened, cause to lead so as to reduce powder caking The probability that pipe 38 blocks.Screen cloth 381 can also be set at the mouth of pipe of bend pipe, and such screen cloth 381 has to the powder of caking to be divided The effect of cutting, avoid the powder of caking from being inhaled into bend pipe, and cause the blocking of pipeline.

This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Claims (8)

1. a kind of powder pump, including bottle（2）And bottle cap（3）, the bottle cap（3）Including with nozzle one（321）Press cap（32） Be set in by cap（32）Outer enclosing cover（31）, it is characterized in that：It is described to press cap（32）In be equipped with piston tube（35）, the piston Pipe（35）Including outer tube（351）Be arranged in outer tube（351）Interior inner tube（352）, wherein, the outer tube（351）Be provided with Nozzle one（321）Corresponding nozzle two（3512）, said inner tube（352）Upper end and outer tube（351）Upper end between formed Hybrid chamber（3514）, the nozzle two（3512）With hybrid chamber（3514）It is connected, said inner tube（352）Lateral surface along interior Pipe（352）Axial direction be provided with air channel（3521）, the air channel（3521）With hybrid chamber（3514）It is connected, the air channel （3521）It is gradually reduced by the width of place near to the upper end, the outer tube（351）Outside is also arranged with piston chamber close to the position of lower end （34）With with piston chamber（34）Piston bore（342）Bore wall and the piston that abuts against of top（36）, the piston bore（342）'s Outer wall top tape limited location groove（3421）, the stopper slot（3421）Bottom land be provided with sealing ring（33）, the bottle（2）Bottle Mouth and sealing ring（33）Mutually compress, the piston chamber（34）With bottle（2）Outer wall is mutually fixed.

2. a kind of powder pump according to claim 1, it is characterized in that：The outer tube（351）In nozzle two（3512）Lower section Provided with retainer ring one（3511）, it is described to press cap（32）Inwall is provided with bulge loop（322）, the bulge loop（322）With retainer ring one （3511）Match.

3. a kind of powder pump according to claim 2, it is characterized in that：The piston chamber（34）Plunger shaft（341）Wall in It is provided with spring groove（343）, the retainer ring one（3511）And spring groove（343）Between be provided with spring（37）.

4. a kind of powder pump according to claim 3, it is characterized in that：The outer tube（351）Outer peripheral face in retainer ring one （3511）Lower section is provided with supports block one（3516）, the supports block one（3516）It is along outer tube（351）Side face it is equally distributed, institute State supports block one（3516）With spring（37）Inner side abut against.

5. a kind of powder pump according to claim 1, it is characterized in that：The outer tube（351）Outer peripheral face be provided with some cunnings Bar（3515）, the piston bore（342）Plunger shaft（341）Inner peripheral surface is provided with and draw runner（3515）The chute to match （3411）.

6. a kind of powder pump according to claim 5, it is characterized in that：The outer tube（351）The outer peripheral face of bottom is provided with Serrated slot one（3517）, the piston（36）Inner surface be provided with and serrated slot one（3517）The serrated slot two to match （361）.

7. a kind of powder pump according to claim 6, it is characterized in that：The piston（36）Lower collar extension edge extend internally and set Have annular supports piece（362）, the outer tube（351）Lower edge and support piece（362）Abut against.

8. a kind of powder pump according to claim 7, it is characterized in that：The outer tube（351）Inner side be provided with positive stop strip two （3519）, the positive stop strip two（3519）Embedded in air channel（3521）Notch at.