CN115538736A

CN115538736A - Building gypsum mortar mixes spraying construction system

Info

Publication number: CN115538736A
Application number: CN202211155287.6A
Authority: CN
Inventors: 谢建东; 陈翔; 唐铭; 刘佳; 车汪速; 廖水建; 邱德国; 蒋小辉
Original assignee: Chengdu Sixth Construction Engineering Co ltd Of Cdceg
Current assignee: Chengdu Sixth Construction Engineering Co ltd Of Cdceg
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2022-12-30
Anticipated expiration: 2042-09-22
Also published as: CN115538736B

Abstract

The invention relates to the field of building construction equipment, and discloses a building gypsum mortar mixed spraying construction system which comprises a spray gun and a moving device for carrying the spray gun, wherein the moving device comprises a moving platform, one side of the moving platform is provided with a lifting frame, the lifting frame is provided with a cross beam, the spray gun is connected to the cross beam in a sliding manner, and the cross beam is provided with a driving mechanism for driving the spray gun to move on the cross beam in a reciprocating manner. The spray gun can spray in a reciprocating manner in the horizontal direction under the driving of the driving mechanism, and meanwhile, the lifting frame is used for driving the cross beam to move in the vertical direction; after the spraying of the spray gun in the horizontal direction is finished, the lifting frame is controlled to ascend, then the next position of the wall surface is sprayed, the steps are repeated, then the spraying of the whole wall surface is achieved, the gypsum spraying operation is simple, the working strength of the spraying operation is reduced, the gypsum spraying efficiency is high, and the spraying is even.

Description

Building gypsum mortar mixes spraying construction system

Technical Field

The invention relates to the field of building construction equipment, in particular to a building gypsum mortar mixed spraying construction system.

Background

The construction to the wall in traditional building construction mainly relies on the manual work to plaster, and the manual work is plastered and needs the manual work to transport the mortar to different floors, is plastered on the wall by the manual work with lime aggregate such as cement mortar again, and not only intensity of labour is big, inefficiency, moreover because everyone's technical merit is different with strength, can't guarantee the construction quality on layer of plastering, causes the wall quality difference of plastering to be great.

At present, a gypsum spraying machine is applied to the market, the spraying machine mainly comprises a case, a discharging pipeline, an air compressor, a material pump and a spray gun, raw materials of gypsum mortar are stirred and mixed in the case, then the material pump is utilized to convey the gypsum mortar into the discharging pipeline, the air compressor conveys high-pressure air into the spray gun through an air pipe, the gypsum mortar in the spray gun is sprayed out under the action of high-pressure airflow, and a worker holds the spray gun to spray gypsum on a wall surface.

The gypsum spray coater described above also has the following problems in its application:

1. the manual handheld spray gun spraying mode easily causes excessive or insufficient local spraying amount and uneven spraying; in the later leveling operation, a large amount of gypsum mortar can be hung, and the waste of the gypsum mortar is easily caused.

2. For a higher wall surface, a support needs to be built, and workers stand on the support to spray the wall surface; the existing spraying mode has the defects of high construction working strength, potential safety hazard existing when the bracket stands on and the like.

Disclosure of Invention

The invention aims to provide a building gypsum mortar mixed spraying construction system, which at least solves the problems of high working strength and the like of the existing spraying mode.

In order to realize the purpose of the invention, the technical scheme adopted by the invention is as follows: the utility model provides a building gypsum mortar mixes spraying construction system, includes the spray gun and is used for carrying on the mobile device of spray gun, the mobile device includes moving platform, one side of moving platform is equipped with the crane, be equipped with the crossbeam on the crane, spray gun sliding connection is on the crossbeam, be equipped with the actuating mechanism who drives spray gun reciprocating motion on the crossbeam.

Preferably, the crossbeam is hollow structure, actuating mechanism includes lead screw and servo motor, servo motor installs the one end at the crossbeam, the lead screw is worn to establish in the crossbeam, just the one end of lead screw links to each other with servo motor's drive end.

Preferably, the spray gun is provided with two, one side of crossbeam is equipped with the bar hole, be equipped with a pair of sliding seat on the crossbeam, two the connection can be dismantled on the sliding seat that corresponds to the spray gun, one side of sliding seat passes the bar hole and overlaps and establish on the lead screw, the sliding seat constitutes screw-thread fit with the lead screw, the lead screw is two-way lead screw.

Preferably, the spray gun includes the rifle body, the front end of the rifle body can be dismantled and be connected with and be the nozzle sleeve of platykurtic, the flat passageway of nozzle sleeve is loudspeaker form, still be equipped with air inlet joint on the rifle body.

Preferably, a plurality of flow equalizing plates are arranged in the flat channel.

Preferably, the sliding seat comprises an L-shaped rod and a U-shaped seat, the strip-shaped hole is located in the front side wall of the cross beam, one end of the L-shaped rod penetrates through the strip-shaped hole and is sleeved on the screw rod, the U-shaped seat is located above the cross beam, the spray gun is placed in the U-shaped seat, and the other end of the L-shaped rod is rotatably connected to the bottom wall of the U-shaped seat;

a first sliding groove and a second sliding groove are formed in the outer wall of the cross beam below the two U-shaped seats, the first sliding groove is close to the front side of the cross beam, the length of the first sliding groove is smaller than half of the length of the cross beam, the length of the second sliding groove is smaller than the length of the first sliding groove, and a first notch is formed in one side, close to the middle of the cross beam, of the first sliding groove; the lower surface of U-shaped seat is equipped with first guide post, first guide post is inserted and is established in first spout, the lower surface sliding connection of U-shaped seat has the second guide post, the second guide post is inserted and is established in the second spout.

Preferably, a limiting slot is formed in one side, close to the middle of the cross beam, of the second sliding groove, a square block is connected to the bottom of the second guide column in a threaded mode, the width of the square block is matched with the width of the second sliding groove, and a protrusion capable of being inserted into the limiting slot is arranged on the lower surface of the square block.

Preferably, the crane includes mullion and diaphragm, mullion sliding connection is on moving platform, diaphragm sliding connection is on the mullion, be equipped with on the mullion and be used for driving the first drive assembly that the diaphragm goes up and down on the mullion and be used for driving the second drive assembly that the mullion goes up and down on moving platform.

Preferably, be equipped with many erection columns on the diaphragm, one side of diaphragm is equipped with the mounting panel, the mounting panel is inserted and is established on the erection column, the crossbeam is fixed on the diaphragm.

Preferably, the two side walls of the nozzle sleeve are provided with T-shaped clamping plates, the two side walls of the U-shaped seat are provided with second notches, the nozzle sleeve is placed in the U-shaped seat, the clamping plates are inserted in the second notches, and the inner side wall of each clamping plate is provided with an elastic plate.

Preferably, the automatic mixing device further comprises a mixer case, a discharge hose, an air compressor and a material pump, wherein the feed end of the material pump is communicated with the mixer case, one end of the discharge hose is communicated with the discharge end of the material pump, and the other end of the discharge hose is communicated with the feed end of the spray gun; the air compressor is communicated with the air inlet connector through an air pipe.

The beneficial effects of the invention are concentrated and expressed as follows:

in the process of spraying the gypsum on the wall surface, the spray gun is firstly carried on the mobile device, then the mobile device is pushed to the front of the wall surface, the mobile device is adjusted to enable the distance between the spray gun and the wall surface to reach a proper position, and then the spraying operation is started; the spray gun can spray in a reciprocating manner in the horizontal direction under the driving of the driving mechanism, and meanwhile, the lifting frame is used for driving the cross beam to move in the vertical direction; after the spraying of the spray gun in the horizontal direction is finished, the lifting frame is controlled to ascend, then the next position of the wall surface is sprayed, the steps are repeated, the whole wall surface is sprayed, the gypsum spraying operation is simple, the working strength of the spraying operation is reduced, the gypsum spraying efficiency is high, and the gypsum spraying is uniform.

Drawings

FIG. 1 is a schematic view showing the overall construction of a moving device of the painting construction system of the present invention;

FIG. 2 is a schematic view of a beam and slide mount mounting arrangement of the spray construction system of the present invention;

FIG. 3 isbase:Sub>A view from A-A in the configuration of FIG. 2;

FIG. 4 is an enlarged view of portion B of the structure of FIG. 3;

FIG. 5 is a schematic view of a spray gun configuration of the spray coating application system of the present invention;

FIG. 6 is a schematic view of the internal structure of the spray gun of the spray coating system of the present invention;

FIG. 7 is a schematic view of another state of the beam and slide block of the painting system of the present invention;

illustration of the drawings: 1. a mobile platform; 2. a cross beam; 3. a screw rod; 4. a servo motor; 5. a strip-shaped hole; 6. a gun body; 7. a nozzle sleeve; 8. a flat channel; 9. an air inlet joint; 10. a flow equalizing plate; 11. an L-shaped rod; 12. a U-shaped seat; 13. a first chute; 14. a second chute; 15. a first notch; 16. a first guide post; 17. a second guide post; 18. limiting slots; 19. a block; 20. a protrusion; 21. a mullion; 22. a transverse plate; 23. mounting a column; 24. mounting a plate; 25. a splint; 26. a second notch; 27. an elastic plate; 28. a universal wheel; 29. a bar hole; 30. and (7) pressing a plate.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-7, a building gypsum mortar mixed spraying construction system comprises a spray gun, and further comprises a mixer case, a discharge hose, an air compressor and a material pump, wherein the mixer case, the discharge hose, the air compressor and the material pump are conventional devices, so that the specific structure of the devices is not shown in the drawings and is not described in detail in this embodiment, the feed end of the material pump is communicated with the mixer case, one end of the discharge hose is communicated with the discharge end of the material pump, and the other end of the discharge hose is communicated with the feed end of the spray gun; the air compressor is communicated with an air inlet joint 9 of the spray gun through an air pipe; putting the raw materials into a mixing machine box for uniform mixing to obtain gypsum mortar; pumping out the gypsum mortar by a material pump, and transporting the gypsum mortar to a spray gun by using a discharge hose; and then starting the air compressor, leading high-pressure airflow generated by the air compressor into the spray gun, and spraying the gypsum mortar in the spray gun onto the wall surface under the high-pressure airflow.

In order to improve the efficiency of spraying construction to and reduce working strength, still including the mobile device that is used for carrying on the spray gun, the mobile device includes moving platform 1, one side of moving platform 1 is equipped with the crane, be equipped with crossbeam 2 on the crane, spray gun sliding connection is on crossbeam 2, be equipped with the actuating mechanism who drives spray gun reciprocating motion on crossbeam 2.

In this embodiment, the upper surface of the mobile platform 1 controls an operation panel, and the panel has control buttons, a display screen and the like for operating the driving mechanism and the lifting frame. The bottom of the mobile platform 1 is provided with a universal wheel 28 with self-locking, which can facilitate the transportation of the mobile platform 1.

Therefore, when the spraying gun is used, the spraying gun is firstly carried on the moving device, then the moving device is pushed to the front of the wall surface, the moving device is adjusted to enable the distance between the spraying gun and the wall surface to reach a proper position, and then the spraying operation is started; the spray gun can spray in a reciprocating way in the horizontal direction under the driving of the driving mechanism, and meanwhile, the lifting frame is used for driving the cross beam 2 to move in the vertical direction; the spraying is accomplished the back then on the horizontal direction to the spray gun, and the control crane rises, then carries out the spraying to the next position of wall, repeats above-mentioned step, and then realizes the spraying to whole wall, gypsum spraying easy operation, reduced the working strength of spraying operation, gypsum spraying is efficient, the uniform velocity of spray gun removes, the spraying of gypsum mortar is even relatively, when can avoiding the later stage operation of making level, because of the spraying is inhomogeneous and cause the waste of gypsum mortar.

In this embodiment, the driving mechanism may be a linear motor, and the spray gun is directly mounted on the linear motor and is driven by the linear motor to move. Actuating mechanism can also be by lead screw 3 and servo motor 4 constitution, crossbeam 2 is hollow structure, servo motor 4 installs the one end at crossbeam 2, and lead screw 3 wears to establish in crossbeam 2, just the one end of lead screw 3 links to each other with servo motor 4's drive end, and servo motor 4 can directly link to each other with lead screw 3's tip, also can adopt gear drive's mode to link to each other.

As a further optimization of this embodiment, in order to improve the spraying efficiency of the gypsum mortar, two spray guns are arranged in the length direction of the cross beam 2, one side of the cross beam 2 is provided with a strip-shaped hole 5, the cross beam 2 is provided with a pair of sliding seats, the two spray guns are detachably connected to the corresponding sliding seats, one side of each sliding seat penetrates through the strip-shaped hole 5 and is sleeved on the screw rod 3, the sliding seats and the screw rod 3 form a threaded fit, the screw rod 3 is a bidirectional screw rod 3, that is, the screw rod 3 has two sections of threads which are opposite to each other, and the two sliding seats are respectively arranged on the two sections of threads; therefore, when the spray gun is used, the servo motor 4 drives the screw rod 3 to rotate, and because the screw rod 3 is the bidirectional screw rod 3, the two sliding seats can be close to each other or be away from each other on the cross beam 2, so that the two spray guns can be driven to synchronously reciprocate, and the spraying efficiency can be improved.

As the further optimization of this embodiment, the spray gun includes the rifle body 6, as shown in fig. 5, the front end of the rifle body 6 can be dismantled and be connected with the nozzle sleeve 7 that is the platykurtic, the flat passageway 8 of nozzle sleeve 7 is the loudspeaker form, and then the gypsum mortar who erupts is fan-shaped on vertical face, can increase the area of spraying, can be favorable to the spraying of horizontal wall corner, avoids the unable spraying of horizontal wall corner to target in place. Meanwhile, the gun body 6 is also provided with an air inlet joint 9, and the air inlet joint 9 is communicated with an air compressor through an air pipe.

In this embodiment, as shown in fig. 6, a plurality of flow equalizing plates 10 are disposed in the flat passage 8, and the flow equalizing plates 10 are disposed to improve the uniformity of the gypsum mortar sprayed from the spray gun.

As a further optimization of the embodiment, as shown in fig. 2-4, because the spraying range of the spraying guns in the horizontal direction is small, and the volume of the spraying guns affects, when the two spraying guns are closed, a spraying gap exists between the two spraying guns, so that gypsum cannot be sprayed on the wall surface opposite to the middle part of the beam 2; in order to solve the above problem, the sliding seat includes an L-shaped rod 11 and a U-shaped seat 12, as shown in fig. 3, the strip-shaped hole 5 is located on the front side wall of the cross beam 2, the strip-shaped hole 5 may also be disposed on the rear side wall of the cross beam 2, in this embodiment, the strip-shaped hole 5 is preferably disposed on the front side wall of the cross beam 2, one end of the L-shaped rod 11 passes through the strip-shaped hole 5 and is sleeved on the screw rod 3, the U-shaped seat 12 is located above the cross beam 2, the spray gun is placed in the U-shaped seat 12, and the other end of the L-shaped rod 11 is rotatably connected to the bottom wall of the U-shaped seat 12; the screw rod 3 drives the two L-shaped rods 11 to move, and the L-shaped rods 11 drive the U-shaped seat 12 to move;

because the U-shaped seat 12 and the L-shaped rod 11 can form a rotating fit, and it is necessary to keep the U-shaped seat 12 and the L-shaped rod 11 from rotating relative to each other in a section of moving stroke of the U-shaped seat 12, a first sliding slot 13 and a second sliding slot 14 are provided on the outer wall of the cross beam 2 below the two U-shaped seats 12, as shown in fig. 2, and a first guide post 16 is provided on the lower surface of the U-shaped seat 12, the first guide post 16 is inserted into the first sliding slot 13, a second guide post 17 is slidably connected to the lower surface of the U-shaped seat 12, and the second guide post 17 is inserted into the second sliding slot 14, so that the U-shaped seat 12 can ensure that the spray gun faces the wall surface in the moving process under the cooperation of the first sliding slot 13, the first guide post 16, the second sliding slot 14, and the second guide post 17.

Meanwhile, the first sliding chute 13 is close to the front side of the cross beam 2, the length of the first sliding chute 13 is less than half of the length of the cross beam 2, the length of the second sliding chute 14 is less than the length of the first sliding chute 13, and a first notch 15 is formed in one side of the first sliding chute 13 close to the middle of the cross beam 2; therefore, after the U-shaped seat 12 moves to the maximum stroke of the first chute 13, the first guide column 16 is located in the first notch 15, the second guide column 17 cannot slide continuously, the screw rod 3 continues to rotate, the L-shaped rod 11 continues to move towards the middle of the cross beam 2, the U-shaped seat 12 can rotate around the L-shaped rod 11, the U-shaped seat 12 is inclined, the spraying angle of the spray gun is changed, and the spraying range can be enlarged; as shown in fig. 7, at this time, the two spray guns can spray on the whole horizontal wall surface in the spraying area of the cross beam 2, and the spraying gaps of the two spray guns can be compensated; after the spraying angle of the spray gun is changed, the spraying distance between the spray gun and the wall surface is increased, and at the moment, the rotating speed of the servo motor 4 is reduced to ensure that the gypsum mortar is uniformly sprayed.

After the first guide post 16 moves into the first notch 15, the first sliding groove 13 loses the limit of the first guide post 16, the first guide post 16 has a certain movement allowance in the width direction of the cross beam 2, and the rotation of the U-shaped seat 12 is uncontrolled, that is, the first guide post 16 can slide in the first sliding groove 13, and at the moment, the U-shaped seat 12 is in a movable state and can rotate around the L-shaped post without control. The U-shaped seat 12 needs to be limited in this embodiment to ensure the stable rotation of the U-shaped seat 12, and the following two ways can be implemented in this embodiment.

The first method comprises the following steps: during the rotation of the U-shaped seat 12, the first guide post 16 has a certain movement track, at this time, the first notch 15 is not provided, the first sliding chute 13 is provided according to the movement track of the first guide post 16, and the first sliding chute 13 does not have a movement margin in the width direction of the cross beam 2.

And the second method comprises the following steps: the first guide post 16 is limited, after the U-shaped seat 12 rotates, the first guide post 16 cannot slide in the first sliding groove 13 and can only rotate, and after the position of the first guide post 16 is limited, the U-shaped seat 12 can also keep stable rotation.

In the two embodiments, the movement track of the first guide column 16 is relatively complex, and the processing difficulty is large; when the first guide post 16 slides in the first sliding groove 13 of the movement track, the first sliding groove 13 is easily worn during long-term use, so that the limit function of the first sliding groove 13 is disabled. For this purpose, the second embodiment is preferably used in the present embodiment.

Specifically, as shown in fig. 4, a limiting slot 18 is arranged in one side of the second sliding groove 14 close to the middle of the cross beam 2, a square block 19 is connected to the bottom of the second guide post 17 through a thread, the width of the square block 19 is matched with the width of the second sliding groove 14, and a protrusion 20 capable of being inserted into the limiting slot 18 is arranged on the lower surface of the square block 19; therefore, after the U-shaped seat 12 rotates, the square 19 cannot rotate, the square 19 moves downwards at the moment, the protrusion 20 is inserted into the limiting slot 18, and the second guide column 17 cannot slide in the second sliding groove 14 at the moment, so that the U-shaped seat 12 can rotate stably; when the U-shaped seat 12 moves towards the two ends of the beam 2, the U-shaped seat 12 can rotate reversely, and when the U-shaped seat 12 is rotated to be perpendicular to the beam 2, the second guide rod rotates reversely, so that the square 19 moves upwards, and the protrusion 20 is separated from the limiting slot 18; and at the moment, the first guide groove recovers the limiting effect on the first guide column 16, and the U-shaped seat 12 can normally move towards the two ends of the cross beam 2.

As a further optimization of the present embodiment, a first notch 15 is also provided on one side of the first sliding chute 13 close to the end of the cross beam 2, and a limiting slot 18 is also provided at the bottom of the second sliding chute 14 close to one side of the end of the cross beam 2, as shown in fig. 7, when the U-shaped base 12 moves to the rightmost side or the leftmost side, the U-shaped base 12 is also in an inclined state, and the spray angle of the spray gun can also be changed, and at this time, the spray gun can spray the vertical wall corner on the left and right sides.

In this embodiment, the bottom of the U-shaped seat 12 is provided with a strip hole 29 and a through hole, which are stepped, the first guide post 16 is inserted into the through hole, the second guide post 17 is inserted into the strip hole 29, the head of the second guide post 17 is octagonal, so as to ensure that the second guide post 17 can only slide in the strip hole 29, the U-shaped seat 12 is further provided with a pressure plate 30, and the pressure plate 30 is installed in the U-shaped seat 12 through screws.

As a further optimization of the embodiment, the lifting frame comprises a vertical frame 21 and a horizontal plate 22, the vertical frame 21 is slidably connected to the moving platform 1, the horizontal plate 22 is slidably connected to the vertical frame 21, and the vertical frame 21 is provided with a first driving assembly for driving the horizontal plate 22 to lift on the vertical frame 21 and a second driving assembly for driving the vertical frame 21 to lift on the moving platform 1; the first driving assembly and the second driving assembly both adopt a motor and a screw rod structure, the motor drives the screw rod to rotate, and the vertical frame 21 or the transverse plate 22 and the screw rod form threaded fit so as to realize lifting.

And, be equipped with many erection columns 23 on the diaphragm 22, one side of diaphragm 22 is equipped with mounting panel 24, mounting panel 24 is inserted and is established on erection column 23, and erection column 23 can be the screw rod, and the one end of screw rod is connected on diaphragm 22, and inserts at mounting panel 24 and establish the back on the screw rod, and it is fixed to the installation of mounting panel 24 to screw up the nut again realization, crossbeam 2 can adopt the mode of screw to fix on diaphragm 22, can adopt with diaphragm 22 integrated into one piece.

As a further optimization of this embodiment, as shown in fig. 5, the clamping plates 25 that are T-shaped are disposed on two side walls of the nozzle sleeve 7, the second gaps 26 are disposed on two side walls of the U-shaped seat 12, the nozzle sleeve 7 is placed in the U-shaped seat 12, the clamping plates 25 are inserted into the second gaps 26, the elastic plates 27 are disposed on the inner side walls of the clamping plates 25, and the elastic plates 27 can clamp the clamping plates 25 on two side walls of the U-shaped seat 12, so as to facilitate the installation and the disassembly of the spray gun.

It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and elements referred to are not necessarily required in this application.

Claims

1. The utility model provides a building gypsum mortar mixes spraying construction system which characterized in that, includes the spray gun and is used for carrying on the mobile device of spray gun, the mobile device includes moving platform (1), one side of moving platform (1) is equipped with the crane, be equipped with crossbeam (2) on the crane, spray gun sliding connection is on crossbeam (2), be equipped with the actuating mechanism who drives spray gun reciprocating motion on crossbeam (2).

2. The building gypsum mortar mixed spraying construction system according to claim 1, wherein the cross beam (2) is a hollow structure, the driving mechanism comprises a screw rod (3) and a servo motor (4), the servo motor (4) is installed at one end of the cross beam (2), the screw rod (3) is arranged in the cross beam (2) in a penetrating manner, and one end of the screw rod (3) is connected with a driving end of the servo motor (4).

3. The building gypsum mortar mixing and spraying construction system according to claim 2, wherein the number of the spray guns is two, one side of the cross beam (2) is provided with a strip-shaped hole (5), the cross beam (2) is provided with a pair of sliding seats, the two spray guns are detachably connected to the corresponding sliding seats, one side of each sliding seat passes through the strip-shaped hole (5) and is sleeved on the screw rod (3), the sliding seats and the screw rod (3) form a threaded fit, and the screw rod (3) is a bidirectional screw rod (3).

4. The building gypsum mortar mixed spraying construction system according to claim 3, wherein the spray gun comprises a gun body (6), a flat nozzle sleeve (7) is detachably connected to the front end of the gun body (6), a flat channel (8) of the nozzle sleeve (7) is trumpet-shaped, and an air inlet joint (9) is further arranged on the gun body (6).

5. The building gypsum mortar mixed spraying construction system according to claim 4, wherein a plurality of flow equalizing plates (10) are arranged in the flat channel (8).

6. The building gypsum mortar mixed spraying construction system as claimed in claim 4, wherein the sliding seat comprises an L-shaped rod (11) and a U-shaped seat (12), the strip-shaped hole (5) is located on the front side wall of the cross beam (2), one end of the L-shaped rod (11) passes through the strip-shaped hole (5) and is sleeved on the screw rod (3), the U-shaped seat (12) is located above the cross beam (2), the spray gun is placed in the U-shaped seat (12), and the other end of the L-shaped rod (11) is rotatably connected to the bottom wall of the U-shaped seat (12);

a first sliding groove (13) and a second sliding groove (14) are formed in the outer wall of the cross beam (2) below the two U-shaped seats (12), the first sliding groove (13) is close to the front side of the cross beam (2), the length of the first sliding groove (13) is smaller than the half length of the cross beam (2), the length of the second sliding groove (14) is smaller than the length of the first sliding groove (13), and a first notch (15) is formed in one side, close to the middle of the cross beam (2), of the first sliding groove (13); the lower surface of U-shaped seat (12) is equipped with first guide post (16), first guide post (16) are inserted and are established in first spout (13), the lower surface sliding connection of U-shaped seat (12) has second guide post (17), second guide post (17) are inserted and are established in second spout (14).

7. The building gypsum mortar mixed spraying construction system according to claim 6, wherein a limiting slot (18) is formed in one side, close to the middle of the cross beam (2), of the second sliding groove (14), a square block (19) is connected to the bottom of the second guide column (17) in a threaded mode, the width of the square block (19) is matched with the width of the second sliding groove (14), and a protrusion (20) capable of being inserted into the limiting slot (18) is formed in the lower surface of the square block (19).

8. The building gypsum mortar mixed spraying construction system according to claim 1, wherein the lifting frame comprises a vertical frame (21) and a transverse plate (22), the vertical frame (21) is connected to the movable platform (1) in a sliding manner, the transverse plate (22) is connected to the vertical frame (21) in a sliding manner, and a first driving assembly for driving the transverse plate (22) to lift on the vertical frame (21) and a second driving assembly for driving the vertical frame (21) to lift on the movable platform (1) are arranged on the vertical frame (21);

be equipped with many erection columns (23) on diaphragm (22), one side of diaphragm (22) is equipped with mounting panel (24), mounting panel (24) are inserted and are established on erection column (23), crossbeam (2) are fixed on diaphragm (22).

9. The building gypsum mortar mixed spraying construction system according to claim 6, wherein T-shaped clamp plates (25) are arranged on two side walls of the nozzle sleeve (7), second gaps (26) are arranged on two side walls of the U-shaped seat (12), the clamp plates (25) are inserted into the second gaps (26) after the nozzle sleeve (7) is placed in the U-shaped seat (12), and elastic plates (27) are arranged on inner side walls of the clamp plates (25).

10. The building gypsum mortar mixing and spraying construction system according to claim 4, further comprising a mixer case, a discharge hose, an air compressor and a material pump, wherein a feed end of the material pump is communicated with the mixer case, one end of the discharge hose is communicated with a discharge end of the material pump, and the other end of the discharge hose is communicated with a feed end of a spray gun; the air compressor is communicated with the air inlet joint (9) through an air pipe.