CN208599979U - Vacuum control valve and powder ejecting device - Google Patents

Abstract

The utility model discloses a kind of vacuum control valve and powder ejecting devices, the vacuum control valve includes: valve body, the valve body is equipped with cavity, powder outlet and inhales powder mouth, the suction powder mouth, the powder outlet and the cavity are connected to setting and the suction powder mouth is connected to setting with the powder recovery port of spray head, the outer wall of the valve body is equipped at least one vacuum pressure relief opening, and the vacuum pressure relief opening is connected to setting with the cavity；And switch member, one end of the switch member is movably sheathed on the outer wall of the valve body, it is used to open or closes the vacuum pressure relief opening, the powder ejecting device includes above-mentioned vacuum control valve, conventional powder ejecting device is solved in liquid coating spraying, coating is undesirable in conjunction with bucket wall, and coating layer thickness is difficult to reach ideal thickness, and be easy to appear disperse coating pollution tank body or staving other positions the problem of.

Description

Vacuum control valve and powder ejecting device

Technical field

The utility model relates to powder spray coating device fields, more particularly to a kind of vacuum control valve and powder cartridge nozzle It sets.

Background technique

In manufacturing industry, it is often necessary to go to contain some chemistry painting industries using small metal bucket, however, in these stavings Buckle ear (for connecting the position of handle i.e. on bucket) is usually all fixed on the side wall of staving by the way of welding, detains in welding The coating of the inner wall of staving can be damaged when ear, therefore, it is necessary to carry out coating, traditional liquid spray dress to corresponding position It sets in spraying, liquid coating is easy attached wall drip, and coating layer thickness is relatively thin, and is easy to appear and distributes coating pollution tank body or staving Other positions.

Summary of the invention

Based on this, it is necessary to a kind of vacuum control valve and powder ejecting device are provided, so that powder ejecting device be made to spray Tu Shi, powder coating can reach ideal thickness again, but do not occur loose powder pollution tank body or staving other positions the problem of.

On the one hand, this application involves a kind of vacuum control valve, specific technical solution is as follows:

A kind of vacuum control valve, comprising:

Valve body, the valve body are equipped with cavity, powder outlet and inhale powder mouth, the suction powder mouth, the powder outlet and described Cavity connection setting and the suction powder mouth are connected to setting with the powder recovery port of spray head, and the outer wall of the valve body is equipped at least one A vacuum pressure relief opening, the vacuum pressure relief opening are connected to setting with the cavity；And

Switch member, one end of the switch member are movably sheathed on the outer wall of the valve body, are used to open or close institute State vacuum pressure relief opening.

Above-mentioned vacuum control valve includes valve body and switch member, and the valve body is equipped with cavity, powder outlet and inhales powder mouth, described Powder mouth, the powder outlet and cavity connection setting are inhaled, and the suction powder mouth is connected to setting with the powder recovery port of spray head, When in use, the powder outlet is connect with evacuator of pulverized-coal_, is passed through the residual powder at spray head respectively by evacuator of pulverized-coal_ The powder recovery port of the spray head, the suction powder mouth, cavity and the powder outlet are recycled at powder recycling, and then avoid this Other positions of a little remaining loose powder pollution tank bodies or staving, further, the outer wall of the valve body is equipped at least one vacuum and lets out Mouth is pressed, the vacuum pressure relief opening is connected to setting with the cavity, and one end of the switch member is movably sheathed on the valve The outer wall of body is used to open or closes the vacuum pressure relief opening, in this way, when the switch member closes the vacuum pressure relief opening, The spray head is at high negative pressure state, and under the action of evacuator of pulverized-coal_, what remaining powder was more easier is recovered to powder Expect to fly upward to prevent powder at recycling, be scattering into ladle body elsewhere；When the switch member opens the vacuum pressure relief opening, Weaken the negative pressure at the spray head, the powder sprayed from the jet port of spray head is unlikely to be taken away by too strong negative pressure, makes with quiet The powder overwhelming majority of electricity is attached on barrel wall, and then guarantees the thickness of coating.

Technical solution is illustrated further below:

The quantity of the vacuum pressure relief opening is multiple in one of the embodiments, and all vacuum pressure relief openings are along institute State the outer wall interval setting of valve body.

On the other hand, the application further relates to a kind of powder ejecting device, and specific technical solution is as follows:

A kind of powder ejecting device, including vacuum control valve, further include spray head, the spray head be equipped with powder inlet, jet port, Injection channel and powder recovery port, the powder inlet, the jet port, the injection channel and powder recovery port connection are set It sets, and the suction powder mouth is connected to setting with the powder recovery port.

Above-mentioned powder ejecting device includes vacuum control valve and spray head, wherein the spray head be equipped with powder inlet, jet port, Injection channel and powder recovery port, the powder inlet, the jet port, the injection channel and powder recovery port connection are set It sets, therefore, when in use, the powder in high pressure conditions passes through the powder inlet and injection channel, it is sprayed from the jet port, The spraying function of spray head may be implemented, further, since vacuum control valve includes valve body and switch member, the valve body is equipped with sky Chamber, powder outlet and inhale powder mouth, the suctions powder mouth, the powder outlet and the cavity connection setting, and the suction powder mouth and The powder recovery port of spray head is connected to setting, and when in use, the powder outlet is connect with evacuator of pulverized-coal_, will by evacuator of pulverized-coal_ Residual powder at spray head is returned by powder recovery port, the suction powder mouth, cavity and the powder outlet of the spray head respectively It receives to powder recycling, and then avoids other positions of these remaining loose powder pollution tank bodies or staving, further, the valve The outer wall of body is equipped at least one vacuum pressure relief opening, and the vacuum pressure relief opening is connected to setting, and the switch member with the cavity One end be movably sheathed on the outer wall of the valve body, the vacuum pressure relief opening is used to open or closes, in this way, open when described When closing the part closing vacuum pressure relief opening, the spray head is at high pressure conditions, remaining to dissipate under the action of evacuator of pulverized-coal_ What powder was more easier is recovered at powder recycling；When the switch member opens the vacuum pressure relief opening, at the spray head Negative pressure weakens, and the powder sprayed from the jet port of spray head is unlikely to be siphoned away by high vacuum, inhales the powder overwhelming majority of static electrification It is attached on barrel wall position to be mended, and then guarantees the thickness of coating.

Technical solution is illustrated further below:

The powder ejecting device further includes the first driving mechanism in one of the embodiments, first driving mechanism For driving the switch member mobile relative to the outer wall of the valve body, the vacuum pressure relief opening is used to open or closed.

The vacuum control valve further includes the first mounting base in one of the embodiments, and the other end of the switch member can It is movably set in first mounting base.

The powder ejecting device further includes the second mounting base and the second driving mechanism in one of the embodiments, described Second mounting base is equipped with guiding pore structure, and the guiding pore structure includes that the first pilot hole extended along preset direction and edge are leaned on The second pilot hole that the area direction to be sprayed of the nearly installation bucket extends, first pilot hole are connected to second pilot hole Setting, second pilot hole is arranged close to the spray head, and second driving mechanism includes cam and driving motor, described convex The output axis connection of wheel and the driving motor, second driving mechanism further includes link assembly, described in the link assembly Link assembly includes push rod, connecting rod, follower lever and connecting shaft, and one end of the push rod abuts with the cam and described pushes away Bar and one end of the connecting rod are rotatably connected, and one end of the other end of the connecting rod and the follower lever is arranged in institute It states one end of connecting shaft and is rotatably connected with the connecting shaft, the other end of the connecting shaft is arranged in described first and leads It being connect to hole or second pilot hole, the other end of the follower lever with the spray head, the switch member is connect with follower lever, Being able to drive the follower lever, the switch member is mobile relative to first mounting base, and first mounting base is fixedly arranged on push rod On, so that the push rod is able to drive the switch member and opens or closes the vacuum pressure relief opening.

Second driving mechanism further includes dynamic clamping head and quiet clamping head in one of the embodiments, the dynamic clamping head and quiet clamping head One end is fixedly arranged in second mounting base, the other end is fixedly arranged on the push rod.

The powder ejecting device further includes the first adjustment structure in one of the embodiments, first adjustment structure Adjustable end connect with the spray head, for adjust the spray head and it is described installation bucket area to be sprayed between spacing.

In one of the embodiments, the follower lever be equipped with through-hole, the through-hole with install bucket bottom surface interval set It sets, the spray head includes connector, and the outer wall of the connector is equipped with external thread structure, and the connector is arranged in described logical The hole and connector is fixed on the follower lever by the nut being cooperatively connected with the external screw thread.

The powder ejecting device further includes the second adjustment structure in one of the embodiments, second adjustment structure Adjustable end connect with second mounting base, for adjust the spray head and it is described installation bucket bottom wall between spacing.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of vacuum control valve；

Fig. 2 is the structural schematic diagram of powder ejecting device when spray head is in contraction state；

Fig. 3 is the structural schematic diagram of powder ejecting device when spray head is in unfolded state；

Fig. 4 is the structural schematic diagram of the second mounting base.

Description of symbols:

10, powder ejecting device, 100, vacuum control valve, 110, valve body, 111, powder outlet, 112, vacuum pressure relief opening, 120, switch member, the 130, first mounting base, 200, spray head, 210, powder inlet, 220, jet port, 230, powder recovery port, 300, Second mounting base, 310, guiding pore structure, the 311, first pilot hole, the 312, second pilot hole, 401, cam, 402, push rod, 403, connecting rod, 404, follower lever, 405, connecting shaft.

Specific embodiment

It is below in conjunction with attached drawing and specifically real for the purpose of this utility model, technical solution and advantage is more clearly understood Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein Only to explain the utility model, the protection scope of the utility model is not limited.

It should be noted that it can directly on the other element when element is referred to as " being set to " another element Or there may also be elements placed in the middle.When element is referred to as " being fixedly arranged on " another element, it can be directly in another yuan On part or there may also be elements placed in the middle.When an element is considered as " connection " another element, it be can be directly It is connected to another element or may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", "left", "right" and similar statement for illustrative purposes only, are not meant to be the only embodiment.

It is important to point out that when element is referred to as " being fixedly arranged on " another element, two elements can be it is integrated, It can be and be detachably connected between two elements.

Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more Any and all combinations of relevant listed item.

In addition it is also necessary to understand, in the present embodiment, term "lower", "upper", "front", "rear", "left", "right", "inner", "outside", "top", "bottom", " side ", " other side ", " one end ", " other end ", etc. indicated by positional relationship be based on Positional relationship shown in the drawings；The terms such as " first ", " second " are to distinguish different structure members.These terms are only Convenient for description the utility model and simplify description, should not be understood as limiting the present invention.

As shown in Figure 1, the vacuum control valve 100 in an embodiment, comprising: valve body 110, valve body 110 are equipped with cavity, powder Outlet 111 and suction powder mouth, the powder recycling that suction powder mouth, powder outlet 111 and cavity connection are arranged and inhale powder mouth with spray head 200 230 connection setting of mouth, the outer wall of valve body 110 are equipped at least one vacuum pressure relief opening 112, and vacuum pressure relief opening 112 is connected to cavity Setting；And switch member 120, one end of switch member 120 are movably sheathed on the outer wall of valve body 110, are used to open or close and is true Empty pressure relief opening 112.

Above-mentioned vacuum control valve includes valve body 110 and switch member 120, and valve body 110 is equipped with cavity, powder outlet 111 and inhales Powder mouth inhales powder mouth, powder outlet 111 and cavity connection setting, and suction powder mouth is connected to the powder recovery port 230 of spray head 200 and sets It sets, when in use, powder outlet 111 is connect with evacuator of pulverized-coal_, distinguished the residual powder at spray head 200 by evacuator of pulverized-coal_ It is recycled at powder recycling, and then avoids by the powder recovery port 230 of spray head 200, suction powder mouth, cavity and powder outlet 111 Other positions of these remaining loose powder pollution tank bodies or staving, further, the outer wall of valve body 110 is equipped at least one vacuum and lets out Mouth 112 is pressed, vacuum pressure relief opening 112 is connected to setting with cavity, and one end of switch member 120 is movably sheathed on valve body 110 Outer wall is used to open or closes vacuum pressure relief opening 112, in this way, when switch member 120 closes vacuum pressure relief opening 112, spray head 200 High pressure conditions are at, under the action of evacuator of pulverized-coal_, what remaining loose powder was more easier is recovered at powder recycling, when When switch member 120 opens vacuum pressure relief opening 112, the negative pressure at spray head 200 weakens, and makes the powder sprayed from the jet port of spray head 200 End is unlikely to be siphoned away by high vacuum, and the powder adsorption of most static electrifications guarantees the thickness of coating on position to be coated.

As shown in Figure 1, on the basis of the above embodiments, the quantity of vacuum pressure relief opening 112 is multiple, all vacuum pressure releases Mouth 112 is arranged along the outer wall interval of valve body 110.In this way, the setting of multiple vacuum pressure relief openings 112 can promote the vacuum control valve To the control effect of 200 internal pressure of spray head.

As shown in Figures 2 and 3, the powder ejecting device 10 in an embodiment, including vacuum control valve 100 further include spray First 200, spray head 200 is equipped with powder inlet 210, jet port 220, injection channel and powder recovery port 230, powder inlet 210, jet port 220, injection channel, suction powder mouth and the connection setting of powder recovery port 230.

Above-mentioned powder ejecting device 10 includes vacuum control valve 100 and spray head 200, wherein spray head 200 is equipped with powder inlet 210, jet port 220, injection channel and powder recovery port 230, powder inlet 210, jet port 220, injection channel and powder recycling 230 connection setting of mouth, therefore, when in use, the powder in high pressure conditions passes through powder inlet 210 and injection channel, from injection Mouth 220 sprays, and the spraying function of spray head 200 may be implemented, further, since vacuum control valve includes valve body 110 and switch member 120, valve body 110 is equipped with cavity, powder outlet 111 and inhales powder mouth, inhales powder mouth, powder outlet 111 and cavity connection setting, and inhale Powder mouth is connected to setting with the powder recovery port 230 of spray head 200, and when in use, powder outlet 111 is connect with evacuator of pulverized-coal_, leads to Cross powder recovery port 230, suction powder mouth, cavity and powder that the residual powder at spray head 200 is passed through spray head 200 by evacuator of pulverized-coal_ respectively Material outlet 111 is recycled at powder recycling, and then avoids other positions of these remaining loose powder pollution tank bodies or staving, more into The outer wall of one step, valve body 110 is equipped at least one vacuum pressure relief opening 112, and vacuum pressure relief opening 112 is connected to setting with cavity, and opens The one end for closing part 120 is movably sheathed on the outer wall of valve body 110, vacuum pressure relief opening 112 is used to open or closes, in this way, working as When switch member 120 closes vacuum pressure relief opening 112, spray head 200 is at high pressure conditions, under the action of evacuator of pulverized-coal_, residual Being recovered at powder recycling of being more easier of loose powder, when switch member 120 opens vacuum pressure relief opening 112, at spray head 200 Negative pressure weaken, make from the jet port of spray head 200 spray powder be unlikely to be taken away by high vacuum, the powder of most static electrifications End is adsorbed on ladle body position to be coated, and then guarantees the thickness of coating.

On the basis of the above embodiments, which further includes the first driving mechanism, the first driving mechanism It is mobile relative to the outer wall of valve body 110 for driving switch part 120, it is used to open or closes vacuum pressure relief opening 112.In this way, passing through First driving mechanism driving switch part 120 is mobile relative to the outer wall of valve body 110, and the mobile automation of switch may be implemented, help In the automatic operation for realizing that powder ejecting device 10 sprays, and then labor cost can be saved.Specifically, the first driving machine Structure can be the driving device including straight line modular structure, but be not limited to direct modular structure, and the first driving mechanism can be with Being includes other driving devices that can be moved back and forth with driving switch part 120 along preset direction such as screw rod slide unit structure.

As shown in Figure 1, Figure 2 and Figure 3, based on any of the above embodiments, which further includes One mounting base 130, the other end of switch member 120 are movably arranged in the first mounting base 130.In this way, when spray head 200 faces When the installation bucket of different bores, switch member 120 is able to drive vacuum control valve institute spray head 200 and moves together.It is necessary to note that It is to realize that one end of switch member 120 is movably arranged in the first mounting base 130 and can be achieved by the prior art, herein It does not repeat one by one, in this embodiment, the first mounting base 130 is equipped with guide rail, and switch member 120 is equipped with and leads with what guide rail cooperated Slot, in this way, the removable connection of switch member 120 and the first mounting base 130 is realized in the cooperation of clearance guide groove and guide rail.

Shown in as shown in Figure 2, Figure 3 and Figure 4, based on any of the above embodiments, which further includes the Two mounting bases 300 and the second driving mechanism, the second mounting base 300 are equipped with guiding pore structure 310, and guiding pore structure 310 includes edge The first pilot hole 311 that preset direction extends and the second pilot hole 312 extended along the area direction to be sprayed close to installation bucket, First pilot hole 311 is connected to setting with the second pilot hole 312, and the second pilot hole is arranged close to spray head 200, the second driving mechanism packet Cam 401 and driving motor are included, the output axis connection of cam 401 and driving motor, the second driving mechanism further includes connection rod set Part, link assembly include push rod 402, connecting rod 403, follower lever 404 and connecting shaft 405, one end and the cam 401 of push rod 402 It abuts and push rod 402 and one end of connecting rod 403 is rotatably connected, the other end of connecting rod 403 and one end of follower lever 404 It is arranged in one end of connecting shaft 405 and is rotatably connected with connecting shaft 405, the other end of connecting shaft 405 is arranged in first Pilot hole 311 or the second pilot hole 312, the other end of follower lever 404 are connect with spray head 200, switch member 120 and follower lever 404 Connection, being able to drive follower lever 404, switch member 120 is mobile relative to the first mounting base 130, and the first mounting base 130, which is fixedly arranged on, to be pushed away On bar 402, so that push rod 402 is able to drive switch member 120 and open or close vacuum pressure relief opening 112.In this way, being driven by cam 401 Dynamic push rod 402 is moved along preset direction, and since the first mounting base 130 is fixedly arranged on push rod 402, switch member 120 is set to first In mounting base 130, therefore, push rod 402 is able to drive switch member 120 and opens or closes vacuum pressure relief opening 112, meanwhile, push rod 402 Drive connection bar 403 drives follower lever 404 to move along the first pilot hole 311, and in turn, follower lever 404 drives spray head 200 along pre- Set direction is mobile, and when spray head 200 is moved to the first predeterminated position, the second driving mechanism drive connection bar 403 drives spray head 200 It is moved along the second through-hole, and then realizes the area to be sprayed that spray head 200 is automatically moved into installation bucket, reach saving labor cost Purpose.

It of courses, in other embodiments, the second driving mechanism includes gear and driving motor, gear and driving motor Axis connection is exported, the second driving mechanism further includes link assembly, and link assembly includes push rod 402, connecting rod 403, follower lever 404 With connecting shaft 405, one end of push rod 402 is equipped with the rack structure cooperated with gear, and the engagement connection of wheel and rack structure is used for Driving push rod 402 is moved along preset direction, and one end and the push rod 402 of connecting rod 403 are rotatably connected, connecting rod 403 it is another End and one end of follower lever 404 are arranged in one end of connecting shaft 405 and are rotatably connected with connecting shaft 405, connecting shaft 405 other end is arranged in the first pilot hole 311 or the second pilot hole 312, and the other end of follower lever 404 is connect with spray head 200, Switch member 120 is connect with follower lever 404, so that follower lever 404 is able to drive switch member 120 and is moved relative to the first mounting base 130, the One mounting base 130 is fixedly arranged on push rod 402, so that push rod 402 is able to drive switch member 120 and is opened or closed vacuum pressure relief opening 112. In this way, being moved by gear and rack drive mode drive rod push rod 402 along preset direction, since the first mounting base 130 is fixed In on push rod 402, switch member 120 is set in the first mounting base 130, and therefore, push rod 402 is able to drive the opening of switch member 120 Or vacuum pressure relief opening 112 is closed, meanwhile, 402 drive connection bar 403 of push rod drives follower lever 404 to move along the first pilot hole 311 Dynamic, in turn, follower lever 404 drives spray head 200 to move along preset direction, when spray head 200 is moved to the first predeterminated position, second Driving mechanism drive connection bar 403 drives spray head 200 to move along the second through-hole, and then realizes spray head 200 being automatically moved into peace The area to be sprayed of barrelling achievees the purpose that save labor cost.

Equally, in other embodiments, the second driving mechanism can also include screw rod, nut and driving motor, screw rod with The output axis connection of driving motor, nut is sheathed on the outer wall of screw rod and screw rod is cooperatively connected, and the second driving mechanism further includes connecting Bar assembly, link assembly include push rod 402, connecting rod 403, follower lever 404 and connecting shaft 405, one end of push rod 402 and nut Outer wall connection and push rod 402 and one end of connecting rod 403 be rotatably connected, the other end and follower lever 404 of connecting rod 403 One end be arranged in one end of connecting shaft 405 and be rotatably connected with connecting shaft 405, the other end of connecting shaft 405 is worn Set on the first pilot hole 311 or the second pilot hole 312, the other end of follower lever 404 is connect with spray head 200, switch member 120 with from Lever 404 connects, and being able to drive follower lever 404, switch member 120 is mobile relative to the first mounting base 130, and the first mounting base 130 is solid On push rod 402, so that push rod 402 is able to drive switch member 120 and open or close vacuum pressure relief opening 112.In this way, passing through screw rod The kind of drive drive rod push rod 402 being cooperatively connected with nut is moved along preset direction, since the first mounting base 130 is fixedly arranged on On push rod 402, switch member 120 is set in the first mounting base 130, therefore, push rod 402 be able to drive switch member 120 open or Vacuum pressure relief opening 112 is closed, meanwhile, 402 drive connection bar 403 of push rod drives follower lever 404 to move along the first pilot hole 311, In turn, follower lever 404 drives spray head 200 to move along preset direction, and when spray head 200 is moved to the first predeterminated position, second is driven Motivation structure drive connection bar 403 drives spray head 200 to move along the second through-hole, and then realizes spray head 200 being automatically moved into installation The area to be sprayed of bucket achievees the purpose that save labor cost.

Based on any of the above embodiments, the second driving mechanism further includes dynamic clamping head and quiet clamping head, and the one of dynamic clamping head and quiet clamping head End is fixedly arranged in the second mounting base 300, the other end is fixedly arranged on push rod 402.In this way, passing through after spray head 200 sprays Dynamic clamping head and quiet clamping head may be implemented for spray head 200 to be moved to initial position, and then realize that switch member 120 closes vacuum pressure relief opening 112. Dynamic clamping head and quiet clamping head can be metal spring, nonmetallic spring, gas spring, liquid spring, hydraulic retarder spring and high-elastic rubber The elastic components such as glue.

Based on any of the above embodiments, which further includes the first adjustment structure, and first is adjusted The adjustable end of structure is connect with spray head 200, for adjusting the spacing between spray head 200 and the area to be sprayed for installing bucket.In this way, When facing the installation bucket of different bores, adjusted between spray head 200 and the area to be sprayed for installing bucket by the first adjustment structure Spacing enables spray head 200 to complete spraying process, and then to enable powder ejecting device 10 close to the area to be sprayed of installation bucket Enough adapt to various types of installation buckets.

Based on any of the above embodiments, follower lever 404 be equipped with through-hole, through-hole with install bucket bottom surface interval set It sets, spray head 200 includes connector, and the outer wall of connector is equipped with external thread structure, and connector is arranged in through-hole and connector passes through The nut being cooperatively connected with external screw thread is fixed on follower lever 404.In this way, passing through tune when facing the installation bucket of different bores Whole spray head 200 the installation site on through-hole come adjust spray head 200 and install bucket area to be sprayed between spacing, make spray head 200 to complete spraying process, and then can make powder ejecting device 10 can adapt to a variety of types close to the area to be sprayed of installation bucket Number installation bucket.

Based on any of the above embodiments, which further includes the second adjustment structure, and second is adjusted The adjustable end of structure is connect with mounting base, for adjusting the spacing between spray head 200 and the bottom wall for installing bucket.In this way, face to face When facing the installation bucket of different depth, spray head 200 is adjusted by the second adjustment structure and the longitudinal pitch of bucket is installed, makes spray head 200 To complete spraying process, and then powder ejecting device 10 can be made to can adapt to Multiple Type close to the area to be sprayed of installation bucket Installation bucket.

As shown in Figures 2 and 3, it is necessary to, it is noted that guiding pore structure 310 quantity and spray head 200 quantity according to It needs to be arranged, in this embodiment, the quantity of spray head 200 is two, and two spray heads 200 are arranged at intervals on push rod 402 or so Two sides are symmetrically arranged with link assembly in the front and rear sides of push rod 402, wherein are equipped with simultaneously in the left and right sides of push rod 402 Two connecting rods 403, two connecting rods 403 are arranged along the length direction interval of push rod 402, and the one of one of connecting rod 403 End and one end of the rotation connection of push rod 402, the other end and follower lever 404 are rotatablely connected, one end of another connecting rod 403 with push away The other end of the rotation connection of bar 402, the other end and follower lever 404 is rotatablely connected, and the connecting rod 403 of front and rear sides passes through connecting shaft 405 are connected on push rod 402, by this mounting means, improve stability when spray head 200 is advanced.Vacuum control valve Quantity is four, and switch member 120 is set there are two fixing body, and two fixing body intervals are arranged, and wherein each fixing body is equipped with two A mounting hole, a vacuum control valve correspondence are arranged in a mounting hole.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed, But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.

Claims (10)

1. a kind of vacuum control valve characterized by comprising

Valve body, the valve body are equipped with cavity, powder outlet and inhale powder mouth, the suction powder mouth, the powder outlet and the cavity Connection setting and the suction powder mouth are connected to setting with the powder recovery port of spray head, and it is true that the outer wall of the valve body is equipped at least one Empty pressure relief opening, the vacuum pressure relief opening are connected to setting with the cavity；And

Switch member, one end of the switch member are movably sheathed on the outer wall of the valve body, are used to open or close and is described true Empty pressure relief opening.

2. vacuum control valve according to claim 1, which is characterized in that the quantity of the vacuum pressure relief opening is multiple, institute There is the vacuum pressure relief opening to be arranged along the outer wall interval of the valve body.

3. a kind of powder ejecting device, which is characterized in that including the described in any item vacuum control valves of claim 1 to 2, also wrap Include spray head, the spray head is equipped with powder inlet, jet port, injection channel and powder recovery port, the powder inlet, the jet port, The injection channel and powder recovery port connection setting, and the suction powder mouth is connected to setting with the powder recovery port.

4. powder ejecting device according to claim 3, which is characterized in that it further include the first driving mechanism, described first Driving mechanism is used to drive the switch member mobile relative to the outer wall of the valve body, is used to open or closes the vacuum pressure release Mouthful.

5. powder ejecting device according to claim 3, which is characterized in that further include the first mounting base, the switch member The other end be movably arranged in first mounting base.

6. powder ejecting device according to claim 5, which is characterized in that further include the second mounting base and the second driving machine Structure, second mounting base be equipped with guiding pore structure, it is described guiding pore structure include along preset direction extend the first pilot hole, And the second pilot hole extended along the area direction to be sprayed close to bucket wall, first pilot hole are connected to second pilot hole Setting, second pilot hole is arranged close to the spray head, and second driving mechanism includes cam and driving motor, described convex The output axis connection of wheel and the driving motor, second driving mechanism further includes link assembly, and the link assembly includes Push rod, connecting rod, follower lever and connecting shaft, one end of the push rod is abutted with the cam and the push rod and the connection One end of bar is rotatably connected, and one end of the other end of the connecting rod and the follower lever is arranged in the one of the connecting shaft It end and is rotatably connected with the connecting shaft, the other end of the connecting shaft is arranged in first pilot hole or described the Two pilot holes, the other end of the follower lever are connect with the spray head, and the switch member is connect with follower lever, make the follower lever It is mobile relative to first mounting base to be able to drive the switch member, first mounting base is fixedly arranged on push rod, makes described push away Bar is able to drive the switch member and opens or closes the vacuum pressure relief opening.

7. powder ejecting device according to claim 6, which is characterized in that second driving mechanism further includes that elasticity is multiple Position part, one end of the dynamic clamping head and quiet clamping head is fixedly arranged in second mounting base, the other end is fixedly arranged on the push rod.

8. powder ejecting device according to claim 7, which is characterized in that it further include the first adjustment structure, described first The adjustable end of adjustment structure is connect with the spray head, between adjusting between the spray head and the area to be sprayed for installing bucket Away from.

9. powder ejecting device according to claim 8, which is characterized in that the follower lever is equipped with through-hole, the through-hole It is arranged with the bottom surface interval of installation bucket, the spray head includes connector, and the outer wall of the connector is equipped with external thread structure, described Connector is arranged in the through-hole and the connector be fixed on by the nut being cooperatively connected with the external screw thread it is described driven On bar.

10. according to the described in any item powder ejecting devices of claim 6 to 9, which is characterized in that further include the second adjusting knot Structure, the adjustable end of second adjustment structure are connect with second mounting base, for adjusting the spray head and installing bucket Spacing between bottom wall.