External wall protection spray device for building construction

Abstract

The present invention discloses an exterior wall protection spray device for building construction, and relates to the field of exterior wall protection technology. It includes a rail, a climbing mechanism, a connector, a top fixing member, a bottom limiter, a water storage bucket and a spray plate. The rail, the climbing mechanism, the top fixing member and the bottom limiter are each provided in a pair. The top fixing member and the bottom limiter limit and fix the rail, and the climbing mechanism moves vertically on the rail. The two climbing mechanisms are connected by a connector to achieve synchronous movement. The present invention is directly installed on the exterior wall of the building through the top fixing member and the bottom limiter, and does not rely on sufficient space on one side of the wall. Whether in a narrow site or a construction site with limited space, the exterior wall water spraying and maintenance operation can be carried out smoothly. The traditional spray truck or fog cannon truck is difficult to use when there is insufficient space. The device effectively solves this problem and improves the flexibility and adaptability of construction.

Description

Technical Field

[0001] The invention relates to the technical field of exterior wall protection, in particular to an exterior wall protection spray device for building construction. Background Art

[0002] External wall water spraying maintenance is a maintenance method adopted during the construction process to ensure the quality of the external wall. By continuously spraying water on the external wall surface, the wall is kept in a relatively moist environment. This helps cement and other materials to fully undergo hydration reactions during the solidification and hardening process, ensuring that the material achieves the desired strength and stability.

[0003] The authorization announcement number CN220879352 is an exterior wall spraying device for building construction. It discloses a method of spraying an exterior wall from top to bottom through an external carrier in cooperation with a swing mechanism and a lifting mechanism, thereby achieving maintenance of the exterior wall of the building.

[0004] A fixed climbing frame spraying device for building construction with authorization announcement number CN213467238U discloses a device for spraying and maintaining an external wall through an external spray frame.

[0005] It can be seen that in the market and in existing products, the spray maintenance of building exterior walls is basically carried out by spraying water through spray equipment set on the ground. This spray method has some disadvantages:

[0006] When spraying water on the exterior wall through the spray equipment installed on the ground, especially using some spray trucks or fog cannon trucks, it is necessary to ensure that there is sufficient space on one side of the wall. If there is insufficient space, it is difficult to allow the above equipment to be used;

[0007] The use of the above-mentioned spraying equipment requires a large amount of water resources, and these water resources are difficult to recycle, resulting in a waste of water resources. In addition, since the maintenance of the exterior wall takes a long time, the required water resources are difficult to estimate.

[0008] In view of the above situation, the present invention provides a novel external wall protection spray device to solve the above problem. Summary of the invention

[0009] The object of the present invention is to provide an exterior wall protection spray device for building construction to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above object, the present invention provides the following technical solution: an external wall protection spray device for building construction, comprising:

[0011] Rails, climbing mechanisms, connectors, top fixings, bottom stoppers, water storage barrels and spray plates;

[0012] The rail rod, the climbing mechanism, the top fixing piece and the bottom limiting piece are each provided with a pair, and the top fixing piece and the bottom limiting piece limit and fix the rail rod;

[0013] The climbing mechanism moves vertically on the rail rod, and the two climbing mechanisms are connected by a connecting piece to achieve synchronous movement;

[0014] Both climbing mechanisms are connected with a water suction pipe, and the spray plate is installed on one side of the climbing mechanism with the water spraying direction facing the wall. The climbing mechanism absorbs water from the water storage barrel through the water suction pipe and sprays the water mist onto the surface of the outer wall through the spray plate;

[0015] A guide sheet for collecting water is arranged below the spray plate, and a water guide pipe for recycling water to a water storage bucket is fixed at one end of the guide sheet.

[0016] Furthermore, regarding this scheme, the climbing mechanism includes a limit block, two support arms are fixed on one end of the limit block facing the outer wall, the two support arms are symmetrically arranged up and down, a hinged arm is rotatably installed on the other end of the support arm, the other end of the hinged arm faces the rail rod, and a clamping wheel that rolls on the surface of the rail rod is rotatably installed on the end of the hinged arm, a climbing wheel is rotatably installed on one side of the limit block, the climbing wheel rolls on the surface of the rail rod, the two clamping wheels and the climbing wheel clamp the rail rod in the middle, and both sides of the connection between the hinged arm and the support arm are rotatably installed on the resistance wheels.

[0017] Furthermore, regarding this scheme, a clamping spring is fixed between the two support arms and the two articulated arms, and the clamping spring makes the articulated arms always tend to approach the limit block. A driving source is installed on one side of one of the limit blocks through a mounting frame, and the output end of the driving source is fixed to one of the climbing wheel rotating shafts.

[0018] Further to this solution, the connecting member includes a center column with sleeve rods fixed at both ends of the center column, and one side of the two limit blocks is rotatably mounted with an insertion rod coaxially fixed with the climbing wheel, the insertion rod is inserted into the sleeve rod and both the insertion rod and the sleeve rod are non-cylindrical bodies.

[0019] Furthermore, regarding this scheme, a gap is left between one end of the limit block and the outer wall, the spray plate is arranged horizontally and located in the gap, the spray plate is fixed to the limit block, a cavity is arranged inside the limit block, a pump liquid paddle is rotatably installed in the cavity, a pipe is connected between the cavity and the inside of the spray plate, a water suction pipe is installed at the limit block, the water suction pipe is connected to the inside of the cavity, and the other end of the water suction pipe is connected to the inside of the water storage barrel.

[0020] Furthermore, with regard to this solution, a brake gear is fixed to one end of the insertion rod near the limit block, and a gear ring is rotatably installed on one side of the limit block. The gear ring is meshingly connected to the brake gear, and an internal gear is also meshingly connected to the inner side of the gear ring. The internal gear is also coaxially fixed to the pump liquid paddle, wherein the diameter of the brake gear is larger than the diameter of the gear ring, and the diameter of the gear ring is larger than the diameter of the internal gear.

[0021] Further to this solution, the water storage barrel includes a barrel body, a side tube is fixed to one side of the barrel body, a threaded sealing cover is provided on the top of the side tube, a filter is provided between the side tube and the barrel body, a water filter membrane is installed inside the barrel body, and a booster pump is also installed on the barrel body to pressurize the interior of the barrel body.

[0022] Further to this solution, the top fixing part includes a hanging rod, a curved arm is fixed in the middle of the hanging rod, a notch is provided in the middle of the other end of the curved arm, a screw block is rotatably installed at the notch, and the top of the rail rod is screwed to the screw block.

[0023] Further regarding this scheme, the bottom limit member includes a sleeve, the bottom of the rail rod is inserted into the sleeve, a bottom plate is fixed to the bottom of the sleeve, a screw sleeve is horizontally fixed in the middle of the sleeve, a screw abutment rod is screwed to the screw sleeve, and the screw abutment rod is rotated to adjust the distance between the rail rod and the outer wall.

[0024] Further to this solution, the guide piece is tilted and made of rubber, a rubber sheet is fixed to the side of the guide piece facing the outer wall, the side of the guide piece facing the outer wall is arranged in an arc shape and the rubber sheet contacts the outer wall.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The exterior wall protection spray device for building construction is directly installed on the exterior wall of the building through top fixings and bottom limiters. It does not rely on sufficient space on one side of the wall. Whether in a narrow site or a construction site with limited space, the exterior wall water spraying maintenance operation can be carried out smoothly. Traditional spray trucks or fog cannon trucks are difficult to use when there is insufficient space. This device effectively solves this problem and improves the flexibility and adaptability of construction.

[0027] At the same time, the device is equipped with guide plates and water pipes, which can recycle water flowing down from the surface of the outer wall into the water storage barrel, and recycle it after wet separation. Compared with traditional sprinkler equipment that consumes a lot of water resources and is difficult to recycle, it greatly saves water resources and reduces construction costs. At the same time, it also meets the requirements of energy conservation and environmental protection.

[0028] In addition, the climbing mechanism can move vertically on the rail rod, driving the spray plate to spray water on the exterior wall in an all-round way, ensuring that all parts of the exterior wall can be fully maintained. Compared with the traditional sprinkler equipment with limited spray height and difficulty in comprehensive coverage, this device can effectively perform overall maintenance on the exterior wall, improve the quality and effect of maintenance, and the design of the spray plate can make water spray evenly onto the exterior wall surface in the form of water mist, ensuring the uniformity of water spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 For the present invention Figure 1 The enlarged structural diagram of part A in the middle;

[0031] Figure 3 It is a schematic diagram of the structure of the climbing frame mechanism and the spray plate position of the present invention;

[0032] Figure 4 For the present invention Figure 3 The enlarged structural diagram of part B in the middle;

[0033] Figure 5 It is a schematic diagram of the water storage barrel structure of the present invention.

[0034] In the figure: 1, rail rod; 2, climbing mechanism; 201, limit block; 202, climbing wheel; 203, support arm; 204, stop wheel; 205, articulated arm; 206, clamping wheel; 207, clamping spring; 208, brake gear; 209, gear ring; 210, internal gear; 211, pump liquid paddle; 3, connecting piece; 301, center column; 302, sleeve rod; 303, plug rod; 4, top fixing piece; 401, hanging rod; 4 02, curved arm; 403, screw block; 404, positioning hole; 5, bottom stopper; 501, plug sleeve; 502, bottom film; 503, screw sleeve; 504, screw-connected abutment rod; 6, water storage barrel; 601, barrel body; 602, side tube; 603, booster pump; 604, filter screen; 605, water filter membrane; 7, water suction pipe; 8, guide plate; 801, rubber sheet; 9, water guide pipe; 10, spray plate; 11, driving source. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Cement needs to react with water to form a hydration reaction during the solidification process. This reaction can cause the cement to gradually harden and gain strength. If the cement loses water too quickly during the hardening process and the hydration reaction is insufficient, the strength of the cement will be reduced. Spraying water on the exterior wall can provide the necessary moisture for the cement to ensure that the hydration reaction continues, thereby ensuring the strength of the wall. Cement will shrink during the drying process. When the shrinkage is uneven or the shrinkage speed is too fast, cracks are likely to occur. Water spraying maintenance can slow down the drying speed of the cement and make the shrinkage of the cement more uniform, thereby reducing the occurrence of cracks.

[0037] like Figure 1As shown, the present invention provides a technical solution: an external wall protection spray device for building construction, mainly comprising a rail rod 1, a climbing mechanism 2, a connecting piece 3, a top fixing piece 4, a bottom limiting piece 5, a water storage bucket 6 and a spray plate 10, wherein the rail rod 1, the climbing mechanism 2, the top fixing piece 4 and the bottom limiting piece 5 are each provided with at least one pair, the rail rod 1 is arranged at the external wall of the building, and is limited and fixed by the top fixing piece 4 and the bottom limiting piece 5, the climbing mechanism 2 is also provided with two and moves vertically on the rail rod 1, the two climbing mechanisms 2 are connected by the connecting piece 3 to realize synchronous movement, and the two climbing mechanisms 2 are both connected with a suction A water pipe 7 and a spray plate 10 are installed on one side of the climbing mechanism 2 and the water spraying direction faces the wall. The spray plate 10 is parallel to the wall surface on the side facing the outer wall, and a pressurized atomizing nozzle is used to ensure the uniformity and saturation of the water spraying. When the climbing mechanism 2 moves along the rail 1, it absorbs water from the water storage barrel 6 through the water suction pipe 7 and sprays the water mist onto the outer wall surface through the spray plate 10 to keep the wall surface moist. A guide plate 8 is provided below the spray plate 10. The guide plate 8 is used to collect water flowing down from the outer wall surface and recycle the water to the water storage barrel 6 through a water guide pipe 9 fixed at one end of the guide plate 8. The collected water can be recycled after wet separation in the water storage barrel 6.

[0038] like Figure 1 and Figure 2 As shown, the climbing mechanism 2 includes a limit block 201, which is the main carrier. Two support arms 203 are fixed to one end of the limit block 201 facing the outer wall. The support arms 203 are symmetrically arranged up and down. A hinged arm 205 is rotatably installed at the other end of the support arm 203. The other end of the hinged arm 205 faces the rail rod 1. Retaining wheels 204 are rotatably installed on both sides of the connection between the hinged arm 205 and the support arm 203. The retaining wheels 204 contact the outer wall surface to reduce the friction generated during the movement. Clamping wheels 206 are rotatably installed on the other end of the hinged arm 205. The clamping wheels 206 contact the rail rod 1. A climbing wheel 202 is rotatably installed on one side of the limit block 201. The climbing wheel 202 and the two clamping wheels 206 form a triangular structure, which clamps the rail rod 1 in the middle. The clamping wheels 206 and the climbing wheels The clamping force formed by 202 allows the climbing mechanism 2 to be stabilized on the rail rod 1. To ensure that the climbing mechanism 2 can be stabilized on the rail rod 1, a clamping spring 207 is arranged between the articulated arm 205 and the support arm 203. The clamping spring 207 always gives the articulated arm 205 a force to approach the limit block 201, so that the clamping wheel 206 and the climbing wheel 202 can generate sufficient pressure. To ensure the stability of the climbing mechanism 2, the clamping wheel 206 and the climbing wheel 202 are both made of rubber to increase the friction generated by the clamping wheel 206, the climbing wheel 202 and the rail rod 1. A driving source 11 is installed on one side of the limit block 201 of one of the climbing mechanisms 2 through a mounting frame, and the output end of the driving source 11 is connected to one of the climbing wheels 202 and drives it, so that the climbing mechanism 2 can move on the rail rod 1.

[0039] like Figure 1 and Figure 2 As shown, the connecting member 3 includes a middle column 301, and sleeve rods 302 are fixed at both ends of the middle column 301. Insert rods 303 are rotatably installed on the opposite sides of the two limit blocks 201. The insert rods 303 are coaxially fixed with the corresponding climbing wheels 202. The insert rods 303 are inserted into the sleeve rods 302 to realize the telescopic function of the connecting member 3. The insert rods 303 and the sleeve rods 302 are compatible non-cylindrical bodies. Through the setting of the connecting member 3, the adjustment of the spacing between the climbing mechanisms 2 and the synchronous braking of the climbing wheels 202 on the two groups of climbing mechanisms 2 are realized.

[0040] like Figure 3 and Figure 4 As shown, there is a gap between one end of the limit block 201 and the outer wall, the spray plate 10 is arranged at the gap and connected to the limit block 201, a cavity is arranged inside the limit block 201, a pumping paddle 211 is rotatably installed in the cavity, the cavity of the limit block 201 is connected to the spray plate 10, the suction pipe 7 is installed on the limit block 201 and communicated with the internal cavity of the limit block 201, the other end of the suction pipe 7 is connected with the inside of the water storage barrel 6, when the pumping paddle 211 rotates, the water pumping operation can be realized, and the water in the water storage barrel 6 is pumped to the outer wall of the spray plate 10 for water spraying operation. It should be noted that since the height difference between the water storage barrel 6 and the climbing mechanism 2 may be relatively large during the process of spraying water on the outer wall, the rotation speed of the pumping paddle 211 also needs to be relatively high to realize the water pumping function, a brake gear 208 is fixed to the end of the insertion rod 303 close to the limit block 201, and a gear ring is also rotatably installed on one side of the limit block 201 209, the gear ring 209 is installed by bearings or guide rails, etc., and can stably rotate on the limit block 201, which will not be described in detail here. The gear ring 209 is meshed with the brake gear 208, and the inner ring of the gear ring 209 is also meshed with an internal gear 210, and the internal gear 210 is coaxially fixed with the rotating axis of the pump liquid paddle 211, so that when the brake gear 208 rotates, the pump liquid paddle 211 can be driven to rotate. To ensure the rapid rotation of the pump liquid paddle 211, the diameter of the brake gear 208 is larger than the diameter of the gear ring 209 and the diameter of the internal gear 210, so as to realize the differential rotation of the brake gear 208 and the internal gear 210. It should be understood that this structure is only one of the embodiments. When the pump liquid paddle 211 needs a higher speed during actual operation, the differential mechanism can be adjusted to meet the speed requirement of the pump liquid paddle 211. The differential structure is relatively widely used and is a structure familiar to people in the field of this embodiment, so it will not be described in detail here.

[0041] like Figure 5As shown, the water storage barrel 6 includes a barrel body 601, and the other end of the water suction pipe 7 is located in the barrel body 601. A side tube 602 is fixed on one side of the barrel body 601, and a screw-connected sealing cover is arranged on the top of the side tube 602. A filter screen 604 is arranged between the side tube 602 and the barrel body 601, and a water filter membrane 605 is also arranged inside the barrel body 601. In order to ensure the water pumping efficiency, a booster pump 603 is installed on the top of the barrel body 601. The inside of the barrel body 601 is pressurized by the booster pump 603 to reduce the pressure of the water pumped upward by the water suction pipe 7. Generally speaking, two water storage barrels 6 are provided, one water storage barrel 6 is used for supplying water, and the other water storage barrel 6 is used for recovering water. The sealing cover of the water storage barrel 6 for supplying water is always sealed to ensure the normal operation of the booster pump 603. The sealing cover of the other water storage barrel 6 is opened and the water conduit 9 is allowed to guide the recovered water into the side tube 602. The water introduced into the side tube 602 is first separated by large particles through the filter net 604, and then separated by fine particles through the filter membrane 605. The water after wet separation can be put into use again without affecting the effect.

[0042] Replay Figure 1 , since the climbing mechanism 2 is arranged on the rail 1, and a certain gap is required between the spray plate 10 and the outer wall, a top fixing member 4 and a bottom limiting member 5 are arranged to fix and adjust the rail 1. The top fixing member 4 includes a hanging rod 401, a curved arm 402 is fixed in the middle of the hanging rod 401, and a screw block 403 is rotatably installed in the middle of the other end of the curved arm 402. The top of the rail 1 is screwed to the screw block 403. The top fixing member 4 is used to limit the top of the rail 1 and is installed at the top of the building. The hanging rod 401 is used to hang on the edge of the roof of the building, or the hanging rod 40 A positioning hole 404 is provided in the middle of 1, which can be fixed by driving a bolt at the positioning hole 404. The curved arm 402 extends outward to ensure that there is a distance between the rail rod 1 and the outer wall. The bottom limiter 5 includes a socket 501. The bottom of the rail rod 1 can be directly inserted into the socket 501. A bottom plate 502 is fixed to the bottom of the socket 501 and is located on the ground to maintain stability. A screw sleeve 503 is fixed in the middle of the socket 501. A screw-connected abutment rod 504 is screwed at the screw sleeve 503. The distance between the rail rod 1 and the outer wall is adjusted by setting the screw-connected abutment rod 504, and after the distance is determined, an effective supporting effect is achieved.

[0043] like Figure 1 As shown, the guide sheet 8 is tilted and made of rubber. A rubber sheet 801 is fixed to the side of the guide sheet 8 facing the outer wall. The side of the guide sheet 8 facing the outer wall is arranged in an arc shape and the rubber sheet 801 is in contact with the outer wall. The thickness of the rubber sheet 801 is relatively low, and contact with the wall can avoid damaging the wall surface. Because it is made of rubber, it can always be close to the surface of the box, and the flowing water can be guided and collected to a large extent.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. An external wall protection spray device for building construction, characterized in that: include: A rail rod (1), a climbing mechanism (2), a connecting piece (3), a top fixing piece (4), a bottom limiting piece (5), a water storage bucket (6) and a spray plate (10); The rail rod (1), the climbing mechanism (2), the top fixing member (4) and the bottom limiting member (5) are each provided with a pair, and the top fixing member (4) and the bottom limiting member (5) are used to limit and fix the rail rod (1); The climbing mechanism (2) moves vertically on the rail (1), and the two climbing mechanisms (2) are connected via a connecting piece (3) to achieve synchronous movement; The two climbing mechanisms (2) are both connected to a water suction pipe (7); the spray plate (10) is installed on one side of the climbing mechanism (2) and faces the wall in the direction of spraying water; the climbing mechanism (2) absorbs water from the water storage barrel (6) through the water suction pipe (7) and sprays the water mist onto the surface of the outer wall through the spray plate (10); A guide sheet (8) for collecting water is arranged below the spray plate (10), and a water guide pipe (9) for recovering water to the water storage bucket (6) is fixed to one end of the guide sheet (8); the climbing mechanism (2) comprises a limit block (201), and two support arms (203) are fixed to one end of the limit block (201) facing the outer wall, and the two support arms (203) are symmetrically arranged up and down, and an articulated arm (205) is rotatably mounted on the other end of the support arm (203), and the other end of the articulated arm (205) faces the rail rod (1), and a clamping wheel (206) rolling on the surface of the rail rod (1) is rotatably mounted on the end of the articulated arm (205); a climbing wheel (202) is rotatably mounted on one side of the limit block (201), and the climbing wheel (202) is rotatably mounted on the other end of the limit block (201). The wheel (202) rolls on the surface of the rail rod (1), the two clamping wheels (206) and the climbing wheel (202) clamp the rail rod (1) in the middle, both sides of the connection between the hinged arm (205) and the support arm (203) are rotatably mounted on the abutment wheel (204), a clamping spring (207) is fixed between the two support arms (203) and the two hinged arms (205), the clamping spring (207) makes the hinged arm (205) always tend to approach the limit block (201), one side of one of the limit blocks (201) is installed with a driving source (11) through a mounting frame, the output end of the driving source (11) is fixed to the rotating shaft of one of the climbing wheels (202), and the connecting member (3) includes a center column (301) , sleeve rods (302) are fixed at both ends of the middle column (301), and a plug rod (303) coaxially fixed with the climbing wheel (202) is rotatably installed on one side of the two limit blocks (201), the plug rod (303) is inserted into the sleeve rod (302), and the plug rod (303) and the sleeve rod (302) are both non-cylindrical bodies, a gap is left between one end of the limit block (201) and the outer wall, the spray plate (10) is horizontally arranged and located at the gap, the spray plate (10) is fixed to the limit block (201), a cavity is arranged inside the limit block (201), a pump liquid paddle (211) is rotatably installed in the cavity, the cavity is connected to the inside of the spray plate (10), and at the limit block (201) A water suction pipe (7) is installed, the water suction pipe (7) is connected to the inside of the cavity, and the other end of the water suction pipe (7) is connected to the inside of the water storage bucket (6). A brake gear (208) is fixed to one end of the insertion rod (303) close to the limit block (201), and a gear ring (209) is rotatably installed on one side of the limit block (201). The gear ring (209) is meshed and connected with the brake gear (208), and an internal gear (210) is also meshed and connected to the inner side of the gear ring (209). The internal gear (210) is also coaxially fixed with the pumping paddle (211), wherein the diameter of the brake gear (208) is greater than the diameter of the gear ring (209), and the diameter of the gear ring (209) is greater than the diameter of the internal gear (210).

2. The external wall protection spraying device for building construction according to claim 1 is characterized in that: The water storage barrel (6) comprises a barrel body (601), a side tube (602) is fixed to one side of the barrel body (601), a screw-connected sealing cover is arranged on the top of the side tube (602), a filter screen (604) is arranged between the side tube (602) and the barrel body (601), a water filter membrane (605) is installed inside the barrel body (601), and a booster pump (603) for boosting the pressure inside the barrel body (601) is also installed on the barrel body (601).

3. The external wall protection spraying device for building construction according to claim 1 is characterized in that: The top fixing member (4) comprises a hanging rod (401), a curved arm (402) is fixed in the middle of the hanging rod (401), a notch is provided in the middle of the other end of the curved arm (402), a screw block (403) is rotatably mounted in the notch, and the top of the rail rod (1) is screwed to the screw block (403).

4. The external wall protection spraying device for building construction according to claim 1 is characterized in that: The bottom stopper (5) comprises a plug sleeve (501), the bottom of the rail rod (1) is plugged into the plug sleeve (501), a bottom plate (502) is fixed to the bottom of the plug sleeve (501), a screw sleeve (503) is horizontally fixed to the middle of the plug sleeve (501), a screw-connected abutment rod (504) is screwed to the screw sleeve (503), and the distance between the rail rod (1) and the outer wall is adjusted by rotating the screw-connected abutment rod (504).

5. The external wall protection spraying device for building construction according to claim 1 is characterized in that: The guide piece (8) is arranged obliquely and is made of rubber material. A rubber sheet (801) is fixed to the side of the guide piece (8) facing the outer wall. The side of the guide piece (8) facing the outer wall is arranged in an arc shape and the rubber sheet (801) is in contact with the outer wall.

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