CN215926605U

CN215926605U - Wall spraying device for public building construction

Info

Publication number: CN215926605U
Application number: CN202122573073.8U
Authority: CN
Inventors: 袁琪钰; 苏金忠; 仝英林; 潘迪; 褚跃飞; 田征; 赵欣; 孙梦花
Original assignee: Shijiazhuang Construction Engineering Co ltd
Current assignee: Shijiazhuang Construction Engineering Co ltd
Priority date: 2021-10-25
Filing date: 2021-10-25
Publication date: 2022-03-01
Anticipated expiration: 2031-10-25

Abstract

The utility model discloses a wall surface spraying device for public building construction, which comprises a fixed plate, wherein the bottom end of the fixed plate is provided with a plurality of universal wheels, the top end of one end of the fixed plate is provided with a support frame, a charging basket is arranged inside the support frame, the bottom of the charging basket is provided with a discharging pipe in a penetrating manner, one end of the discharging pipe is provided with a high-pressure pump, one end of the high-pressure pump is provided with a guide pipe, one end of the guide pipe is provided with a connecting pipe, and one end of the connecting pipe is provided with a spraying assembly; the top of the other end of the fixed plate is provided with an adjusting device, and one side of the supporting frame and the top end of the fixed plate are provided with a control console. The automatic wall surface spraying device is reasonable and reliable in structure, simple and convenient to operate, and capable of quickly and automatically spraying the wall surface, so that labor force can be reduced, and productivity is improved.

Description

Wall spraying device for public building construction

Technical Field

The utility model relates to the technical field of spraying, in particular to a wall surface spraying device for public building construction.

Background

A spray coater is a special coating equipment adopting spray technology, and the principle is that the air flow is controlled to instantly push an air distribution reversing device to reverse, so that a piston of a pneumatic motor stably and continuously reciprocates to pressurize sucked coating, the coating is conveyed into a spray gun of the spray coater through a high-pressure hose, and the coating is instantly atomized by the spray gun and then released to the surface of an object to be coated.

Wherein, patent number is CN209413237U discloses a wall spraying device for public building construction, including the flush coater main part, the top fixed mounting of flush coater main part has the storage hopper, and one side of flush coater main part is connected with the spraying pipe, and the one end of spraying pipe is connected with the spray gun, and the top fixed mounting of storage hopper has the agitator, and the one end of spray gun has cup jointed flat sleeve, and the outside fixed mounting of spray gun has the spraying support. Above-mentioned spraying device is through setting up the spraying support, can be in the one end of nylon rope with the spray gun, drive through step motor makes the nylon rope uniform motion, thereby make more even of spray gun spraying, however, above-mentioned spraying device's spraying support when needing to carry out lateral shifting, need just can realize the lateral shifting to the spraying support through artifical the promotion, thereby can increase staff's labour, and simultaneously, the spray gun can remain partial coating after long-time work, cause the jam to the spray gun easily under long-time accumulation, it is inhomogeneous to cause the spraying.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a wall surface spraying device for public building construction, which has the advantage of quickly and conveniently replacing a spray head, and further solves the problems that a spray gun can remain partial paint after long-time work, and the spray gun is easily blocked due to long-time accumulation, so that the spraying is not uniform.

(II) technical scheme

In order to realize the advantage of quickly and conveniently replacing the spray head, the utility model adopts the following specific technical scheme:

a wall spraying device for public building construction comprises a fixing plate, wherein a plurality of universal wheels are arranged at the bottom end of the fixing plate, a supporting frame is arranged at the top end of one end of the fixing plate, a charging bucket is arranged inside the supporting frame, a discharging pipe penetrates through the bottom of the charging bucket, a high-pressure pump is arranged at one end of the discharging pipe, a guide pipe is arranged at one end of the high-pressure pump, a connecting pipe is arranged at one end of the guide pipe, and a spraying assembly is arranged at one end of the connecting pipe; the top of the other end of the fixed plate is provided with an adjusting device, and one side of the supporting frame and the top end of the fixed plate are provided with a control console.

Further, carry out the intensive mixing to the coating in the storage bucket in order to realize, thereby make the more thorough that coating mixes, it solidifies to have avoided coating to produce in the storage bucket, reduce the effect of spraying, the bottom through the storage bucket sets up to the toper structure simultaneously, thereby make coating can not produce in the storage bucket and pile up, the waste of raw materials has been avoided, the top of storage bucket is provided with the apron, the top of apron is provided with motor one, and the one end of a motor output shaft runs through the bottom of apron and is provided with the pivot, the bottom of pivot is provided with a plurality of puddlers, the bottom of storage bucket sets up to the toper structure.

Furthermore, in order to realize the horizontal and vertical automatic adjustment of the spraying component, thereby saving labor and improving the working efficiency, and simultaneously ensuring the stability of the spraying component in the adjusting process, so that the sprayed coating is more uniform, and further improving the spraying effect of the spraying device; a first groove is formed in one side wall of the support column, two guide rods II are arranged at two ends of the inner wall of each of two sides of the first groove, a second threaded rod is arranged in the middle of the inner wall of each of two sides of the first groove, a third motor is arranged at the top end of the support column, an output shaft of the third motor penetrates through the top end of the support column and is connected with one end of the second threaded rod, a T-shaped block is sleeved on the outer side wall of the second guide rod, a second threaded hole matched with the threaded rod is formed in the side wall of the T-shaped block, and a first through hole matched with the connecting pipe is formed in one end of the T-shaped block.

Furthermore, in order to realize the quick installation and disassembly of the spraying component, so that the spraying component can be quickly and conveniently disassembled after the spraying device works for a long time, the working efficiency of workers is improved, and simultaneously, the blockage caused by the fact that residual coating is left in the spraying component after the spraying component works for a long time is avoided, so that the workers can clean the spraying component, the service life of the spraying device is prolonged; a locking block, a gear and a driving rod are sequentially arranged inside the first hole, the locking block and the gear are connected with the side wall of the first hole through a connecting shaft, and a first baffle is arranged on one side of the first hole, which is close to the first bump; the locking block comprises a clamping block in a horizontal section and a rotating block in a vertical section, the side surface of the rotating block is semicircular, a straight tooth groove matched with the gear is formed in the outer side of the rotating block, a groove II is formed in the bottom, close to the rotating block, of the clamping block, and a through hole II matched with the connecting shaft is formed in the bottom end of the groove II; the middle part of the driving rod is provided with thread teeth matched with the gear, the top part of the driving rod penetrates through the outer circle side wall of the connecting pipe, the outer side of the top part of the driving rod is provided with a plurality of connecting rods, and the outer side of one end of each connecting rod is provided with a circular ring; the spraying component comprises a spraying pipe arranged at one end of the connecting pipe, a spraying plate is arranged at one end of the spraying pipe, and a plurality of spray heads are arranged on one side wall of the spraying plate; a socket matched with the socket is formed in one side wall of the spray pipe, a hole II matched with the locking block and a hole III matched with the projection I are sequentially formed in the outer side, located on the socket, of one side wall of the spray pipe, and a baffle II is arranged on the inner side wall, close to the socket, of the hole II.

(III) advantageous effects

Compared with the prior art, the utility model provides a wall surface spraying device for public building construction, which has the following beneficial effects:

1. the automatic wall surface spraying device is reasonable and reliable in structure, simple and convenient to operate, and capable of quickly and automatically spraying the wall surface, so that labor force can be reduced, and productivity is improved.

2. Through setting up the storage bucket to having realized carrying out the intensive mixing to the coating in the storage bucket and having mixed, thereby having made the more thorough that coating mixes, having avoided coating to produce in the storage bucket and solidifying, reduce the effect of spraying, set up to the toper structure through the bottom of storage bucket simultaneously, thereby make coating can not produce in the storage bucket and pile up, avoided the waste of raw materials.

3. Through setting up adjusting device to horizontal and vertical automatic regulation to the spraying subassembly has been realized, thereby has saved the manpower, has improved work efficiency, has still guaranteed the stability of spraying subassembly in accommodation process simultaneously, makes the coating that the spraying came out more even, and then has improved spraying device's spraying effect.

4. Through setting up connecting pipe and spraying assembly, thereby realized quick installation and dismantlement to spraying assembly, thereby make spraying device can be convenient dismantlement spraying assembly fast after long-time work, thereby improved staff's work efficiency, simultaneously, still avoided spraying assembly to leave in spraying assembly because remaining coating and cause the jam after long-time work, thereby make the staff can wash spraying assembly, and then improved spraying device's life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of a wall surface painting apparatus for public building construction according to an embodiment of the present invention;

FIG. 2 is a sectional view of a material bucket of a wall painting device for public building construction according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an adjusting device in a wall painting apparatus for public building construction according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

fig. 5 is a schematic structural view of a connection pipe in a wall painting apparatus for public building construction according to an embodiment of the present invention;

fig. 6 is a sectional view of a connection pipe in a wall painting apparatus for public building construction according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a locking block in a wall painting apparatus for public building construction according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a driving rod in a wall painting apparatus for public building construction according to an embodiment of the present invention;

fig. 9 is a sectional view of a spray assembly in a wall surface spray apparatus for public building construction according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a spray assembly in a wall surface spray coating apparatus for public building construction according to an embodiment of the present invention.

In the figure:

1. a fixing plate; 2. a universal wheel; 3. a support frame; 4. a charging bucket; 401. a cover plate; 402. a first motor; 403. a rotating shaft; 404. a stirring rod; 5. a discharge pipe; 6. a high pressure pump; 7. a conduit; 8. a connecting pipe; 801. a socket; 802. a first hole; 803. a first bump; 804. a locking block; 8041. a clamping block; 8042. rotating the block; 8043. a straight tooth groove; 8044. a second groove; 8045. a second through hole; 805. a gear; 806. a drive rod; 8061. thread teeth; 8062. a connecting rod; 8063. a circular ring; 807. a first baffle plate; 9. a spray assembly; 901. a spray pipe; 902. spraying a plate; 903. a spray head; 904. a socket; 905. a second hole; 906. a third hole; 907. a second baffle plate; 10. an adjustment device; 1001. a support plate; 1002. a pillar; 1003. a first guide rod; 1004. a first threaded rod; 1005. a second motor; 1006. a first groove; 1007. a second guide rod; 1008. a second threaded rod; 1009. a third motor; 1010. a T-shaped block; 1011. a first through hole; 11. a console.

Detailed Description

For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the utility model, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.

According to an embodiment of the utility model, a wall surface spraying device for public building construction is provided.

Referring to the drawings and the detailed description, as shown in fig. 1-10, a wall surface spraying device for public building construction according to an embodiment of the present invention includes a fixing plate 1, a plurality of universal wheels 2 are disposed at a bottom end of the fixing plate 1, a support frame 3 is disposed at a top end of one end of the fixing plate 1, a material barrel 4 is disposed inside the support frame 3, a material discharging pipe 5 is disposed at a bottom of the material barrel 4 in a penetrating manner, a high-pressure pump 6 is disposed at one end of the material discharging pipe 5, a conduit 7 is disposed at one end of the high-pressure pump 6 (in a specific application, the conduit 7 is a telescopic bellows, and the length of the conduit 7 is greater than the height of a support column 1002), a connecting pipe 8 is disposed at one end of the conduit 7, and a spraying assembly 9 is disposed at one end of the connecting pipe 8; the top end of the other end of the fixing plate 1 is provided with an adjusting device 10, the top end of the fixing plate 1 on one side of the supporting frame 3 is provided with a console 11, wherein the first motor 402, the second motor 1005, the third motor 1009 and the high-pressure pump 6 are electrically connected with the console 11 (containing a PCL controller) in sequence.

By means of the technical scheme, the wall surface spraying device is reasonable and reliable in structure, simple and convenient to operate, and capable of quickly and automatically spraying the wall surface, so that labor force can be reduced, and productivity is improved.

In an embodiment, for above-mentioned storage bucket 4, the top of storage bucket 4 is provided with apron 401, the top of apron 401 is provided with motor 402, and the one end of motor 402 output shaft runs through the bottom of apron 401 and is provided with pivot 403, the bottom of pivot 403 is provided with a plurality of puddlers 404, the bottom of storage bucket 4 sets up to the toper structure, thereby it mixes to have realized carrying out the intensive mixing to the coating in storage bucket 4, thereby make the more thorough that the coating mixes, avoided coating to produce in storage bucket 4 and solidify, reduce the effect of spraying, set up to the toper structure through the bottom of storage bucket 4 simultaneously, thereby make coating can not produce in storage bucket 4 and pile up, the waste of raw materials has been avoided.

In an embodiment, for the above adjusting device 10, the adjusting device 10 includes two symmetrical supporting plates 1001 disposed at the top end of the fixing plate, a support 1002 is disposed between the supporting plates 1001, a plurality of first guide rods 1003 and a first threaded rod 1004 sequentially penetrate through the bottom of the support 1002, two ends of the first guide rods 1003 and the first threaded rod 1004 are respectively connected to the side walls of the supporting plates 1001, a first threaded hole matched with the first threaded rod 1004 is formed in the bottom of the support 1002, a second motor 1005 is disposed on the side wall of one of the supporting plates 1001, and an output shaft of the second motor 1005 penetrates through the side wall of the supporting plate 1001 and is connected to one end of the first threaded rod 1004; a groove I1006 is formed in one side wall of the support column 1002, guide rods II 1007 are arranged at two ends of the inner wall at two sides of the groove I1006, a threaded rod II 1008 is arranged in the middle of the inner wall at two sides of the groove I1006, a motor III 1009 is arranged at the top end of the support column 1002, an output shaft of the motor III 1009 penetrates through the top end of the support column 1002 and is connected with one end of the threaded rod II 1008, a T-shaped block 1010 is sleeved on the outer side wall of the guide rod II 1007, the side wall of the T-shaped block 1010 is provided with a second threaded hole matched with the second threaded rod 1008, one end of the T-shaped block 1010 is provided with a first through hole 1011 matched with the connecting pipe 8, thereby realizing the automatic adjustment of the transverse direction and the vertical direction of the spraying component 9, saving the labor force, improving the working efficiency, meanwhile, the stability of the spraying component 9 in the adjusting process is ensured, so that the sprayed coating is more uniform, and the spraying effect of the spraying device is improved.

The operating principle of the adjusting device 10 is as follows: when the spraying component 9 needs to be moved transversely, the second motor 1005 is started through the control console 11, so that the first threaded rod 1004 is driven to rotate, and the first threaded rod 1004 and the first threaded hole are matched, so that the support can perform transverse reciprocating motion;

when the spraying assembly 9 needs to be moved vertically, the motor III 1009 is started through the control console 11, so that the second threaded rod 1008 is driven to rotate, and under the matching effect of the second threaded rod 1008 and the second threaded hole, the support column can perform vertical reciprocating motion.

In one embodiment, for the connection pipe 8 and the spraying assembly 9, a socket 801 is formed on a side wall of one end of the connection pipe 8, a first hole 802 is formed on an outer side of the socket 801, a first bump 803 is formed on an outer side of the socket 801, and the first hole 802 and the first bump 803 are arranged in a cross shape; a locking block 804, a gear 805 and a driving rod 806 are sequentially arranged inside the first hole 802, the locking block 804 and the gear 805 are connected with the side wall of the first hole 802 through connecting shafts, and a first baffle 807 is arranged on one side of the first hole 802 close to the first bump 803; the locking block 804 comprises a clamping block 8041 in a horizontal section and a rotating block 8042 in a vertical section, the side surface of the rotating block 8042 is semicircular, a straight tooth groove 8043 matched with the gear 805 is formed in the outer side of the rotating block 8042, a groove II 8044 is formed in the bottom, close to the rotating block 8042, of the clamping block 8041, and a through hole II 8045 matched with the connecting shaft is formed in the bottom end of the groove II 8044; the middle part of the driving rod 806 is provided with a thread tooth 8061 matched with the gear 805, the top part of the driving rod 806 penetrates through the outer circular side wall of the connecting pipe 8, the outer side of the top part of the driving rod 806 is provided with a plurality of connecting rods 8062, and the outer side of one end of each connecting rod 8062 is provided with a circular ring 8063; the spraying component 9 comprises a spraying pipe 901 arranged at one end of the connecting pipe 8, one end of the spraying pipe 901 is provided with a spraying plate 902, and one side wall of the spraying plate 902 is provided with a plurality of spray heads 903; wherein, a lateral wall of the spraying pipe 901 is provided with a socket 904 matched with the socket 801, the outer side of the lateral wall of the spraying pipe 901 and located the socket 904 is sequentially provided with a hole two 905 matched with the locking block 804 and a hole three 906 matched with the first 803, the inner lateral wall of the hole two 905 close to the socket 904 is provided with a baffle two 907, thereby realizing the rapid installation and disassembly of the spraying assembly 9, thereby enabling the spraying device to be capable of rapidly and conveniently disassembling the spraying assembly after long-time work, thereby improving the working efficiency of workers, and simultaneously avoiding the blockage of the spraying assembly 9 caused by the residual coating left in the spraying assembly 9 after long-time work, thereby enabling the workers to clean the spraying assembly 9, and further prolonging the service life of the spraying device.

The working principle of the connecting pipe 8 and the spraying assembly 9 is as follows: when the spraying component 9 needs to be installed, the spraying pipe 901 is firstly inserted into the connecting pipe 8, so that the socket 904 is matched with the socket 801 and the first projection 803 is matched with the third hole 906, then the driving rod 806 is rotated, the gear 805 is rotated, and the locking block 804 is further driven to rotate, so that the clamping block 8041 of the locking block 804 is rotated to the inside of the second hole 905 and is abutted against the second baffle 907, and the installation of the spraying component 9 is further completed; when the spray assembly 9 needs to be disassembled, the driving rod 806 is rotated in a straight line and reversely, so that the block 8041 of the locking block 804 leaves the second hole 905, and the disassembly of the spray assembly 9 is completed.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, firstly, paint is injected into the charging basket 4, then the cover plate 401 is covered, the first motor 402 is started through the console 11, the stirring rod 404 is further driven to stir the paint, then the high-pressure pump 6 is started through the console 11, so that the paint in the charging basket 4 sequentially enters the guide pipe 7 and the connecting pipe 8 and is sprayed out from the spray head 903 in the spraying assembly 9, and further the wall surface is sprayed;

when the spraying component 9 needs to be moved transversely, the second motor 1005 is started through the control console 11, so that the first threaded rod 1004 is driven to rotate, and the first threaded rod 1004 and the first threaded hole are matched, so that the support can perform transverse reciprocating motion;

when the spraying assembly 9 needs to be moved vertically, the third motor 1009 is started through the console 11, so that the second threaded rod 1008 is driven to rotate, and the pillar can perform vertical reciprocating motion under the matching action of the second threaded rod 1008 and the second threaded hole;

when the spraying component 9 needs to be installed, the spraying pipe 901 is firstly inserted into the connecting pipe 8, so that the socket 904 is matched with the socket 801 and the first projection 803 is matched with the third hole 906, then the driving rod 806 is rotated, the gear 805 is rotated, and the locking block 804 is further driven to rotate, so that the clamping block 8041 of the locking block 804 is rotated to the inside of the second hole 905 and is abutted against the second baffle 907, and the installation of the spraying component 9 is further completed; when the spray assembly 9 needs to be disassembled, the driving rod 806 is rotated in a straight line and reversely, so that the block 8041 of the locking block 804 leaves the second hole 905, and the disassembly of the spray assembly 9 is completed.

In conclusion, by means of the technical scheme, the wall surface spraying device is reasonable and reliable in structure, simple and convenient to operate, and capable of quickly and automatically spraying the wall surface, so that labor force can be reduced, and productivity can be improved; by arranging the charging basket 4, the coating in the charging basket 4 is fully stirred and mixed, so that the coating is mixed more thoroughly, the coating is prevented from being solidified in the charging basket 4, the spraying effect is reduced, and meanwhile, the coating is prevented from being accumulated in the charging basket 4 and the waste of raw materials is avoided by arranging the bottom of the charging basket 4 into a conical structure; by arranging the adjusting device 10, the transverse and vertical automatic adjustment of the spraying component 9 is realized, so that the labor is saved, the working efficiency is improved, meanwhile, the stability of the spraying component 9 in the adjusting process is ensured, the sprayed coating is more uniform, and the spraying effect of the spraying device is improved; through setting up connecting pipe 8 and spraying assembly 9, thereby realized quick installation and dismantlement to spraying assembly 9, thereby make spraying device can be convenient dismantlement spraying assembly fast after long-time work, thereby staff's work efficiency has been improved, and simultaneously, spraying assembly 9 has still been avoided causing the jam because remaining in spraying assembly 9 for remaining residual coating after long-time work, thereby make the staff can wash spraying assembly 9, and then spraying device's life has been improved.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a wall spraying device for public building construction, includes fixed plate (1), and the bottom of this fixed plate (1) is provided with a plurality of universal wheels (2), its characterized in that:

a support frame (3) is arranged at the top end of one end of the fixing plate (1), a charging bucket (4) is arranged inside the support frame (3), a discharging pipe (5) penetrates through the bottom of the charging bucket (4), a high-pressure pump (6) is arranged at one end of the discharging pipe (5), a guide pipe (7) is arranged at one end of the high-pressure pump (6), a connecting pipe (8) is arranged at one end of the guide pipe (7), and a spraying assembly (9) is arranged at one end of the connecting pipe (8);

the top of the other end of the fixing plate (1) is provided with an adjusting device (10), and a console (11) is arranged on one side of the support frame (3) and is positioned on the top of the fixing plate (1).

2. The wall surface spraying device for public building construction as claimed in claim 1, wherein a cover plate (401) is arranged at the top end of the charging basket (4), a first motor (402) is arranged at the top end of the cover plate (401), one end of an output shaft of the first motor (402) penetrates through the bottom end of the cover plate (401) and is provided with a rotating shaft (403), a plurality of stirring rods (404) are arranged at the bottom of the rotating shaft (403), and the bottom of the charging basket (4) is arranged in a conical structure.

3. A wall painting apparatus for public building construction according to claim 2, the adjusting device (10) comprises two symmetrical supporting plates (1001) arranged at the top end of the fixing plate, a strut (1002) is arranged between the supporting plates (1001), a plurality of guide rods I (1003) and threaded rods I (1004) sequentially penetrate through the bottom of the strut (1002), two ends of the guide rod I (1003) and the threaded rod I (1004) are respectively connected with the side wall of the supporting plate (1001), and the bottom of the pillar (1002) is provided with a first threaded hole matched with the first threaded rod (1004), a second motor (1005) is arranged on the side wall of one of the supporting plates (1001), an output shaft of the second motor (1005) penetrates through the side wall of the supporting plate (1001) and is connected with one end of the first threaded rod (1004);

a side wall of the strut (1002) is provided with a groove I (1006), two guide rods (1007) are arranged at two ends of the inner wall of two sides of the groove I (1006), two threaded rods (1008) are arranged in the middle of the inner walls of two sides of the groove I (1006), three motors (1009) are arranged on the top of the strut (1002), an output shaft of the three motors (1009) runs through the top of the strut (1002) and one end of the two threaded rods (1008) is connected, a T-shaped block (1010) is sleeved on the outer side wall of the two guide rods (1007), a threaded hole II matched with the two threaded rods (1008) is formed in the side wall of the T-shaped block (1010), and a through hole I (1011) matched with the connecting pipe (8) is formed in one end of the T-shaped block (1010).

4. The wall surface spraying device for public building construction as claimed in claim 2 or 3, wherein a socket (801) is formed in one end side wall of the connecting pipe (8), holes I (802) which are symmetrical to each other are formed in the outer side of the socket (801), symmetrical lugs I (803) are formed in the outer side of the socket (801), and the two holes I (802) and the two lugs I (803) are arranged in a cross shape;

the locking block (804), the gear (805) and the driving rod (806) are sequentially arranged inside the first hole (802), the locking block (804) is connected with the gear (805) and the side wall of the first hole (802) through a connecting shaft, and a first baffle (807) is arranged on one side, close to the first bump (803), of the first hole (802).

5. The wall surface spraying device for public building construction as claimed in claim 4, wherein the locking block (804) comprises a clamping block (8041) in a horizontal section and a rotating block (8042) in a vertical section, the side surface of the rotating block (8042) is semicircular, a straight tooth groove (8043) matched with the gear (805) is formed in the outer side of the rotating block (8042), a groove two (8044) is formed in the bottom of the clamping block (8041) close to the rotating block (8042), and a through hole two (8045) matched with the connecting shaft is formed in the bottom end of the groove two (8044).

6. The wall surface spraying device for public building construction as claimed in claim 5, wherein a thread tooth (8061) matched with the gear (805) is formed in the middle of the driving rod (806), the top of the driving rod (806) penetrates through the outer circular side wall of the connecting pipe (8), a plurality of connecting rods (8062) are arranged on the outer side of the top of the driving rod (806), and a circular ring (8063) is arranged on the outer side of one end of each connecting rod (8062).

7. A wall surface spraying device for public building construction according to claim 6, wherein the spraying component (9) comprises a spraying pipe (901) arranged at one end of the connecting pipe (8), one end of the spraying pipe (901) is provided with a spraying plate (902), and one side wall of the spraying plate (902) is provided with a plurality of spray heads (903);

a socket (904) matched with the socket (801) is arranged on one side wall of the spray pipe (901), a hole two (905) matched with the locking block (804) and a hole three (906) matched with the projection one (803) are sequentially arranged on the outer side of the socket (904) on one side wall of the spray pipe (901), and a baffle plate two (907) is arranged on the inner side wall, close to the socket (904), of the hole two (905).