Outer wall paint spraying device for constructional engineering

Abstract

The utility model provides an exterior wall paint spraying device for constructional engineering, which relates to the technical field of building construction devices and comprises a movable base station, a paint storage box and a delivery pump, the paint storage box and the delivery pump are arranged on the base station, and the delivery pump is used for delivering paint liquid in the paint storage box to a spray head through a delivery pipe to be atomized and sprayed out; the nozzle comprises a pressurizing head, a combined pipe and an atomizing head which are connected in sequence; a first mounting cavity, a mixing cavity and a second mounting cavity are sequentially formed in the combined pipe, a collecting hole is formed in the second mounting cavity, and the collecting hole is communicated with the mixing cavity through a flow guide hole formed in the side wall of the combined pipe; the collection hole is located under the atomization head, after paint liquid is sprayed out at a high speed through the pressurization head, the Venturi effect is formed, and the collected paint liquid is adsorbed again and atomized and sprayed out through high-speed fluid generated by the pressurization head for recycling. According to the utility model, the paint liquid suspended on the atomizing head can be effectively recycled and reused, so that the waste of the paint is reduced, and the pollution to the environment is also reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction device technical field, concretely is a building engineering is with outer wall paint spraying device. BACKGROUND

[0002] After wall construction is completed, often need to paint the wall and operate, and the outer wall is convenient to operate due to the large external space, and the existing outer wall construction is usually carried out by using paint spraying equipment to spray paint quickly. When the existing paint spraying device sprays paint on the wall or building structure, part of the paint liquid will condense and liquefy and hang at the outlet of the spray head, and the paint gathered into liquid will drop to the ground and be difficult to handle, pollute the environment, and also cause waste of paint. SUMMARY

[0003] To overcome the technical problem that the paint receiving disc of the existing paint spraying device blocks the atomization range of the spray head, the utility model provides a building engineering is with outer wall paint spraying device.

[0004] The utility model adopts the following technical scheme.

[0005] A building engineering is with outer wall paint spraying device, including movable base and the paint storage tank and delivery pump of setting on the base, and the delivery pump is used for the paint liquid in the paint storage tank is sent to the spray head atomization and sprays out through the delivery pipe, the spray head includes the booster head, the combination pipe and the atomization head connected in proper order, and the combination pipe is opened with first installation cavity, mixing cavity and second installation cavity in proper order, and the booster head and atomization head are installed in first installation cavity and second installation cavity respectively, the booster head includes the tapered tube, and the big end of tapered tube is connected with the delivery pipe, and the small end of tapered tube is located in the mixing cavity, the atomization head has the atomization hole through, and the inlet end of atomization hole is communicated with the mixing cavity, the second installation cavity is opened with the collection hole, and the collection hole is communicated with the mixing cavity through the flow guide hole opened in the lateral wall of combination pipe, and the collection hole is located directly below the atomization head.

[0006] As optional, the second installation cavity includes the first variable diameter section and the second variable diameter section away from the mixing cavity in proper order, the inner diameter of first variable diameter section gradually increases away from the mixing cavity, the inner diameter of second variable diameter section gradually decreases away from the mixing cavity, and the collection hole is located at the intersection of first variable diameter section and second variable diameter section.

[0007] As optional, the collection hole is funnel-shaped.

[0008] As optional, the atomization head includes the inlet section and the outlet section, and the atomization hole is opened through in the inlet section and the outlet section, the inlet section is sealedly connected with the combination pipe, and only allows the fluid in the mixing cavity to pass through the atomization hole, the hole diameter of atomization hole gradually increases from the inlet section to the outlet section, and the inner diameter of atomization hole inlet end is equal to or greater than the inner diameter of mixing cavity, and the outer diameter of outlet section gradually decreases towards the end away from the mixing cavity.

[0009] As optional, the outer side wall of the outlet section is uniformly provided with a plurality of second anti-skid grooves in the circumferential direction.

[0010] As optional, the booster head further comprises a stepped shaft and a sealing connector; the stepped shaft is arranged outside the conical pipe, and the small end of the conical pipe protrudes beyond the end face of the stepped shaft; the large end of the conical pipe is sealingly connected with the delivery pipe through the sealing connector.

[0011] As optional, the stepped shaft is a two-stage stepped shaft, and the outer side wall of the small-diameter section of the stepped shaft is provided with external threads; the first mounting cavity is a stepped hole, and the small-diameter section of the first mounting cavity is threadedly connected with the small-diameter section of the stepped shaft.

[0012] As optional, the outer wall of the combined pipe is uniformly provided with a plurality of first anti-skid grooves in the circumferential direction.

[0013] The beneficial effects of the present application are as follows:

[0014] The present application pressurizes the paint liquid input to the atomizing head through the booster head, so that the paint liquid passes through the mixing cavity at high speed and enters the atomizing hole, and is quickly atomized and sprayed out due to the pressure reduction in the atomizing hole; meanwhile, a collecting hole is arranged directly below the atomizing head, and the paint liquid condensed on the atomizing head falls into the collecting hole; after the paint liquid is sprayed out at high speed by the booster head, a Venturi effect is formed, so that the pressure in the mixing cavity is lower than the pressure in the second mounting cavity, the collected paint liquid is again adsorbed into the mixing cavity through the flow guide hole by the pressure difference, mixed with the high-speed fluid, and atomized and sprayed out again into the atomizing hole, for recycling. The present application can effectively recycle and reuse the paint liquid hanging on the atomizing head, thereby reducing the waste of paint and the pollution to the environment. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, and obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 is a schematic diagram of the three-dimensional structure of the present application.

[0017] Figure 2 is a side view of the present application.

[0018] Figure 3 is a schematic diagram of the structure of the spray head.

[0019] Figure 4 is an exploded schematic diagram of the spray head.

[0020] Figure 5is a schematic plan view of the spray head.

[0021] Figure 6 is Figure 5 is a sectional view of the area A-A.

[0022] Figure 7 is a schematic view of the structure of the booster head.

[0023] Figure 8 is a sectional view of the booster head.

[0024] Figure 9 is a schematic view of the structure of the combination pipe.

[0025] Figure 10 is a sectional view of the combination pipe.

[0026] Figure 11 is Figure 10 is an enlarged view of the area B.

[0027] Figure 12 is a schematic view of the structure of the atomizing head.

[0028] Figure 13 is a sectional view of the atomizing head.

[0029] Figure 14 is Figure 6 is an enlarged view of the area C.

[0030] BRIEF DESCRIPTION OF DRAWINGS

[0031] 1 - base, 11 - universal wheel, 12 - handrail, 2 - paint storage tank, 3 - delivery pump, 4 - delivery pipe, 5 - spray head, 51 - booster head, 511 - sealing connector, 512 - stepped shaft, 513 - tapered pipe, 52 - combination pipe, 521 - first mounting cavity, 522 - mixing cavity, 523 - second mounting cavity, 5231 - first reducing section, 5232 - second reducing section, 524 - collection hole, 525 - flow guide hole, 526 - first anti-skid groove, 527 - plug, 53 - atomizing head, 531 - inlet section, 532 - outlet section, 533 - atomizing hole, 534 - second anti-skid groove. DETAILED DESCRIPTION

[0032] The drawings are only for illustrative purposes and should not be construed as limiting the patent; in order to better illustrate the embodiment, some components of the drawings may be omitted, enlarged or reduced, and do not represent the actual product size.

[0033] It is understandable for those skilled in the art that some known structures and their descriptions in the drawings may be omitted. The technical scheme of the utility model will be further described below in combination with the drawings and embodiments.

[0034] Example One

[0035] As Figures 1-13 shown in the drawings, the device comprises a movable base 1, a paint storage tank 2 and a delivery pump 3 arranged on the base 1, the delivery pump 3 is used to deliver paint in the paint storage tank 2 to the spray head 5 through the delivery pipe 4 for atomization.

[0036] A plurality of universal wheels 11 are arranged under the base 1, so as to facilitate the movement of the base 1, thereby facilitating the realization of large-area painting.

[0037] Preferably, the base 1 is square, and the four corners of the bottom surface are provided with universal wheels 11.

[0038] In the embodiment, the end of the base 1 away from the spray head 5 is also provided with a handrail 12 for facilitating the operation of the user.

[0039] As Figures 3-6 shown, the spray head 5 comprises a booster head 51, a combination pipe 52 and an atomization head 53 connected in sequence; the combination pipe 52 is provided with a first installation cavity 521, a mixing cavity 522 and a second installation cavity 523 in sequence, and the booster head 51 and the atomization head 53 are respectively arranged in the first installation cavity 521 and the second installation cavity 523; the booster head 51 comprises a tapered pipe 513, the large end of the tapered pipe 513 is connected with the delivery pipe, and the small end of the tapered pipe 513 is located in the mixing cavity 522; the atomization head 53 has a through atomization hole 533, and the inlet end of the atomization hole 533 is communicated with the mixing cavity 522; the second installation cavity 523 is provided with a collection hole 524, and the collection hole 524 is communicated with the mixing cavity 522 through a flow guide hole 525 arranged in the side wall of the combination pipe 52; the collection hole 524 is located directly below the atomization head 53.

[0040] In the embodiment, the hole diameter of the inlet end of the tapered pipe 513 is the same as that of the delivery pipe 4, and the delivery pump 3 pressurizes the paint when delivering the paint; when the paint passes through the booster head 51, the hole diameter of the outlet end of the tapered pipe 513 is reduced, so as to further pressurize the passing paint, so that the paint passing through the mixing cavity 522 has a higher flow rate; the paint passes through the mixing cavity 522 at high speed and enters the atomization hole 533, and as the hole diameter of the atomization hole 533 increases, the pressure of the paint in the atomization hole 533 rapidly decreases, so that the paint is atomized and sprayed out; when the paint condenses on the end face of the outlet end of the atomization head 53, the paint falls into the collection hole 524 below; due to the Venturi effect formed when the paint sprayed by the booster head 51 passes through the mixing cavity 522, the air in the mixing cavity 522 is mixed in the high-speed fluid and sprayed out, so that a transient vacuum is formed in the mixing cavity 522, so that the pressure in the mixing cavity 522 is lower than that in the second installation cavity 523; under the action of the pressure difference, the air and the paint in the flow guide hole 525 are adsorbed into the mixing cavity 522, mixed with the paint sprayed by the booster head 51, and enter the atomization hole 533 for recycling.

[0041] It should be noted that in order to ensure the adsorption force of the mixing chamber 522 to the flow guide hole 525, the diameter of the flow guide hole 525 should be small enough, at least smaller than the diameter of the outlet end of the tapered tube 513.

[0042] Most preferably, the flow guide hole 525 can be designed as a micro-hole, and the diameter of the flow guide hole 525 should be such that after the liquid paint drops, the surface tension of the paint can block the end of the flow guide hole 525 close to the collection hole 524, so that when the high-speed fluid flows through the mixing chamber 522, a greater pressure difference will be generated on both sides of the liquid paint, which is more conducive to the paint in the flow guide hole 525 being adsorbed into the mixing chamber 522.

[0043] Of course, the power of the delivery pump 3 can also be increased, thereby increasing the flow rate of the paint entering the mixing chamber 522, thereby increasing the pressure difference between the two ends of the flow guide hole 525.

[0044] In this embodiment, the delivery pump 3 is a centrifugal pump, which is a common fluid delivery device and will not be described here.

[0045] In this embodiment, the delivery pipe 4 is a hard pipe, preferably a ceramic pipe or a stainless steel pipe. When a hard pipe is selected, the stability of paint delivery can be better ensured.

[0046] In other embodiments, the delivery pipe 4 can also be a hose, such as a rubber hose, etc. The hose makes the installation position of the spray head 5 more flexible.

[0047] Preferably, the collection hole 524 is funnel-shaped, the diameter of the small end of the collection hole 524 is the same as that of the flow guide hole 525, and the area of the inlet end of the collection hole 524 is larger. The paint can also slide from the inclined inner wall of the collection hole 524 to the flow guide hole 525, so that the collection hole 524 can better collect the falling paint.

[0048] In this embodiment, the end face of the outlet end of the atomizing head 53 is flush with the end face of the end of the combined pipe 52 away from the booster head 51, so that when the paint is atomized and sprayed, the combined pipe 52 will not block the paint mist, and the spraying area of the atomizing head 53 can be effectively ensured.

[0049] Specifically, as shown in FIG. 6, the combined pipe 52 is connected to the booster head 51 through the delivery pipe 4, and the delivery pipe 4 is connected to the booster head 51 through the delivery pump 3. Figures 9-13As shown, the atomizing head 53 comprises an inlet section 531 and an outlet section 532, and the atomizing holes 533 are arranged through the inlet section 531 and the outlet section 532; the inlet section 531 is sealingly connected with the combination pipe 52, and only allows the fluid in the mixing cavity 522 to pass through the atomizing holes 533; the diameter of the atomizing holes 533 gradually increases from the inlet section 531 to the outlet section 532, and the inner diameter of the inlet end of the atomizing holes 533 is equal to or greater than the inner diameter of the mixing cavity 522; the outer diameter of the outlet section 532 gradually decreases towards the end away from the mixing cavity 522. This makes the paint liquid gathered on the end face of the outlet section 532 slide to the second mounting cavity 523 along the side wall of the outlet section 532, and even if the end face of the outlet end of the atomizing head 53 protrudes beyond the end face of the combination pipe 52, as long as the part with the largest outer diameter of the outlet section 532 is located above the collection hole 524, the paint liquid can still gather into the collection hole 524.

[0050] Preferably, the second mounting cavity 523 comprises a first variable-diameter section 5231 and a second variable-diameter section 5232 in sequence away from the mixing cavity 522; the inner diameter of the first variable-diameter section 5231 gradually increases away from the mixing cavity 522; the inner diameter of the second variable-diameter section 5232 gradually decreases away from the mixing cavity 522; the collection hole 524 is located at the intersection of the first variable-diameter section 5231 and the second variable-diameter section 5232, which makes the collection hole 524 located at the lowest point of the second mounting cavity 523 during normal use of the spray head 5, and even if the part with the largest outer diameter of the outlet section 532 is not located directly above the collection hole 524, the paint liquid can still slide from the first variable-diameter section 5231 and the second variable-diameter section 5232 into the collection hole 524, which can better improve the collection effect of the paint liquid.

[0051] In this embodiment, a plurality of second anti-skid grooves 534 are uniformly arranged on the outer side wall of the outlet section 532 in the circumferential direction, which can be conveniently taken, and when assembling the atomizing head 53 and the combination pipe 52, the inlet section 531 and the end of the second mounting cavity 523 close to the mixing cavity 522 can be screwed together by clamping the second anti-skid grooves 534.

[0052] Similarly, a plurality of first anti-skid grooves 526 are uniformly arranged on the outer wall of the combination pipe 52 in the circumferential direction. The first anti-skid grooves 526 make the combination pipe 52 easy to clamp or take, thereby facilitating the connection with the booster head 51 and the atomizing head 53, and also can be used for fixing the entire spray head 5.

[0053] In this embodiment, the booster head 51 further comprises a stepped shaft 512 and a sealing connector 511; the stepped shaft 512 is coaxially arranged outside the tapered pipe 513, and the small end of the tapered pipe 513 protrudes beyond the end face of the stepped shaft 512; the large end of the tapered pipe 513 is sealingly connected with the conveying pipe 4 through the sealing connector 511.

[0054] Specifically, the stepped shaft 512 is a two-stage stepped shaft, and an outer thread is arranged on the outer side wall of the small-diameter section of the stepped shaft 512; the first mounting cavity 521 is a two-stage stepped hole, and the small-diameter section of the first mounting cavity 521 is threadedly connected with the small-diameter section of the stepped shaft 512.

[0055] In the embodiment, the sealing connector 511 is a connecting flange, and the output end of the conveying pipe 4 is also provided with a connecting flange of the same specification, and the conveying pipe 4 and the tapered pipe 513 are connected through the two connecting flanges, and a gasket seal should be arranged between the two connecting flanges.

[0056] In the embodiment, the flow guide hole 525 is arranged by radially arranging a first through hole penetrating the side wall of the combined pipe 52 at the corresponding position of the mixing cavity 522, then arranging a second through hole penetrating the collecting hole 524 and communicating with the first through hole from the end surface of the combined pipe 52, and then sealing and plugging the part of the first through hole and the second through hole communicating with the outside of the combined pipe 52 by the plug 527 (as shown in Figure 9 、 Figure 11 and 14), so that the flow guide hole 525 only communicates with the mixing cavity 522 and the collecting hole 524.

[0057] Embodiment Two

[0058] The difference between the embodiment and the embodiment one is that:

[0059] In the embodiment, the collecting hole 524 is a through hole penetrating the side wall of the combined pipe 52 in the radial direction, and the flow guide hole 525 is also a through hole penetrating the side wall of the combined pipe 52 in the radial direction and communicating with the mixing cavity 522, and then the collecting hole 524 and the flow guide hole 525 are communicated from the outside of the combined pipe 52 by a hose. The embodiment has fewer processing procedures for the combined pipe 52.

[0060] Embodiment Three

[0061] The difference between the embodiment and any of the above embodiments is that:

[0062] After the atomizing head 53 and the second mounting cavity 523 are fixed by screwing, a second anti-skid groove 534 is located directly below the atomizing head 53 (as shown in Figure 14 This makes the paint on the end surface of the outlet end of the atomizing head 53 fall at the top corner of the second anti-skid groove 534 when sliding downward along the outer wall of the outlet section 532 under the influence of gravity, thereby falling into the collecting hole 524. The embodiment can achieve more precise collection of paint and reduce the coverage area of paint on the surface of the atomizing head 53.

[0063] In the utility model, unless another definite provision and limitation, the term "mount", "link", "connect", "fix" and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can pass through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's mutual action relation.

[0064] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, all the embodiments are not exhausted. Any modification, equivalent replacement and improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A kind of building engineering outer wall paint spraying device, including movable base (1) and the paint tank (2) and delivery pump (3) being set on base (1), the delivery pump (3) is used to deliver paint liquid in paint tank (2) through delivery pipe (4) to the atomization of spray head (5) spray out;The spray head (5) includes booster head (51), combination pipe (52) and atomization head (53) connected in turn;First installation cavity (521), mixing cavity (522) and second installation cavity (523) are sequentially opened in the combination pipe (52), and the booster head (51) and atomization head (53) are installed in first installation cavity (521) and second installation cavity (523) respectively;The booster head (51) includes conical pipe (513), and the big end of conical pipe (513) is connected with delivery pipe (4), and the small end of conical pipe (513) is located in mixing cavity (522);The atomization head (53) has through atomization hole (533), and the inlet end of atomization hole (533) is communicated with mixing cavity (522);Second installation cavity (523) is opened in the collection hole (524), and the collection hole (524) is communicated with mixing cavity (522) by the flow guide hole (525) opened in the side wall of combination pipe (52);The collection hole (524) is directly below atomization head (53).Second installation cavity (523) includes first variable diameter section (5231) and second variable diameter section (5232) away from mixing cavity (522) in turn;The inner diameter of first variable diameter section (5231) gradually increases away from mixing cavity (522);The inner diameter of second variable diameter section (5232) gradually decreases away from mixing cavity (522);The collection hole (524) is located at the intersection of first variable diameter section (5231) and second variable diameter section (5232).The collection hole (524) is funnel-shaped.The atomization head (53) includes inlet section (531) and outlet section (532), and the atomization hole (533) is opened in inlet section (531) and outlet section (532);Inlet section (531) is sealingly connected with combination pipe (52), and only allows fluid in mixing cavity (522) to pass through atomization hole (533);The pore size of atomization hole (533) gradually increases from inlet section (531) to outlet section (532), and the inner diameter of the inlet end of atomization hole (533) is equal to or greater than the inner diameter of mixing cavity (522);The outer diameter of outlet section (532) gradually decreases away from mixing cavity (522).The outer side wall of outlet section (532) is uniformly provided with a plurality of second anti-skid grooves (534) in the circumferential direction.The booster head (51) further includes stepped shaft (512) and sealing connector (511);The stepped shaft (512) is arranged outside conical pipe (513), and the small end of conical pipe (513) protrudes beyond the end face of stepped shaft (512);The big end of conical pipe (513) is sealingly connected with delivery pipe (4) by sealing connector (511). characterized in that ​ ​ ​ ​ ​ ​ 2. The paint spraying device for the outer wall of a building according to claim 1, wherein ​ ​ ​ ​ 3. The paint spraying device for the outer wall of a building according to claim 1, wherein ​ 4. The paint spraying device for the outer wall of a building according to claim 1, wherein ​ ​ ​ ​ 5. The apparatus according to claim 4, wherein ​ 6. The paint spraying device for the outer wall of a building according to claim 1, wherein ​ ​ ​ 7. The paint spraying device for the exterior wall of a building according to claim 6, wherein The stepped shaft (512) is a two-stage stepped shaft, and an outer thread is arranged on the outer side wall of the small-diameter section of the stepped shaft (512); The first mounting cavity (521) is a stepped hole, and the small-diameter section of the first mounting cavity (521) is threadedly connected with the small-diameter section of the stepped shaft (512).

8. The paint spraying device for the outer wall of a building according to claim 1, wherein The outer wall of the combined pipe (52) is uniformly provided with a plurality of first anti-skid grooves (526) in the circumferential direction.

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