A hybrid spraying device for manufacturing lightweight building materials

Abstract

The present invention relates to the technical field of spraying machines, and discloses a mixing and spraying device for manufacturing lightweight building materials, including a plunger spraying machine main body. Paint buckets are installed on both sides of the plunger spraying machine main body. Three equally spaced positioning plates are fixedly connected to the inner wall of the paint bucket. A positioning block is slidably connected to each positioning plate. A bucket cover slidably connected to the paint bucket is arranged between the three positioning blocks. A chute is formed at a position on the outer wall of the bucket cover close to the positioning plate, and a slider is slidably connected in the chute. For this mixing and spraying device for manufacturing lightweight building materials, after injecting the paint into the paint bucket, it is only necessary to cover the paint bucket with the bucket cover. After the paint in the paint bucket is pumped out by the plunger spraying machine main body, the pressure in the paint bucket will decrease. Under the action of atmospheric pressure, the bucket cover will move downward by itself, and during the downward movement, the paint adhering to the inner wall of the paint bucket will be scraped off by the arc plate and the positioning block, reducing the waste of paint.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying machines, and specifically to a hybrid spraying device for manufacturing lightweight building materials. Background Art

[0002] Lightweight building materials are known for their low density characteristics, demonstrating many advantages such as being lightweight and easy to carry, having simple processing, and efficient transportation. Such materials are widely used in the field of lightweight construction, especially in the construction of walls, floors, and roofs. Throughout the production process of lightweight building materials, a hybrid spraying device (such as a plunger spraying machine) is often used as an auxiliary tool to assist in completing related operations.

[0003] For example, the patent with the patent authorization announcement number CN118831762B discloses an electronically controlled adjustable plunger spraying machine, which includes a mounting frame, a plunger spraying machine body, a three-port outer tube, etc. In this electronically controlled adjustable plunger spraying machine, a three-port outer tube, a single-port rotating ring, a three-port sealing ring, and a core valve are sequentially arranged on the three-port liquid inlet pipe. By electronically controlling the rotation of the single-port rotating ring and the core valve, the spraying mode and the self-cleaning mode can be switched. Moreover, during the frequent reciprocating switching process of two kinds of coatings, the self-cleaning process can be automatically completed, saving a large number of cleaning steps and improving the cleaning effect. In addition, a double-channel structure is provided inside the conveying pipe to separately convey two different coatings. During the self-cleaning process of switching between two different coatings, the cleaning time can be significantly reduced; it overcomes the drawback that the existing plunger spraying machine can only perform the pumping and spraying work of one kind of coating during the frequent single working process and is inconvenient for reciprocally switching between two different coatings.

[0004] Although the plunger spraying machine in the above patent is convenient for reciprocally switching between two different coatings, it still has certain defects:

[0005] Currently, plunger spraying machines are mainly used for spraying high-viscosity coatings. Due to the high viscosity characteristics of such coatings, they are prone to sticking to the inner wall of the paint tank. This phenomenon not only directly leads to waste of paint, increasing material costs, but also further increases labor costs and time costs because the paint needs to be frequently replaced or supplemented. Frequently dealing with the problem of paint sticking will undoubtedly interrupt the originally smooth construction process, have an adverse impact on the overall work efficiency, and thus hinder the improvement of spraying efficiency. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a hybrid spraying device for manufacturing lightweight building materials, which can automatically scrape off the paint sticking to the inner wall of the paint bucket, reducing paint waste.

[0007] To achieve the above object, the present invention provides the following technical solution: A hybrid spraying device for manufacturing lightweight building materials, including a plunger spraying machine main body, with paint buckets installed on both sides of the plunger spraying machine main body. Three equally spaced positioning plates are fixedly connected to the inner wall of each paint bucket. A positioning block is slidably connected to each positioning plate. There is a bucket cover slidably connected to the paint bucket between the three positioning blocks. A chute is opened at a position on the outer wall of the bucket cover close to the positioning plate. A slider is slidably connected in the chute, and the side wall of the slider is fixedly connected to the positioning block. Chamfers are opened at both ends of the top of the positioning block. An arc plate is provided between every two positioning blocks. The arc plate is located at the bottom of the bucket cover and is slidably connected to the bucket cover. A pushing component is connected between the arc plate and the positioning block. Elastic cushions are fixedly connected to the sides of the arc plate and the positioning block close to the inner wall of the paint bucket. Pressure balance components for internal and external pressures are connected to both sides of the bucket cover.

[0008] Further, the pushing component includes an outer pushing extrusion block and a wedge block. Outer pushing extrusion blocks are fixedly connected to the lower ends on both sides of the positioning block. Wedge blocks are fixedly connected to both ends of the arc plate. The end of the wedge block is trapezoidal in reverse, and the outer pushing extrusion block matches the wedge block.

[0009] Further, a receiving groove is opened at the bottom of the bucket cover. An anti - detachment groove is opened at the end of the receiving groove. An anti - detachment rod is slidably connected inside the anti - detachment groove. One end of the anti - detachment rod is fixedly connected to a connecting block, and the connecting block is fixedly connected to the arc plate. A pulling elastic member is sleeved outside the anti - detachment rod near the connecting block end. One end of the pulling elastic member is fixedly connected to the side wall of the connecting block, and the other end of the pulling elastic member is fixedly connected to the inner wall of the receiving groove.

[0010] Further, a connecting ring is provided at the middle position of the positioning block. All three positioning blocks are fixedly connected to the connecting ring, and a connecting plate is fixedly connected to the middle position of the connecting ring.

[0011] Further, a gripping block is rotatably connected to the middle position of the bucket cover. The gripping block is in the shape of a capital "I". Hook - hanging blocks are fixedly connected to both sides of the upper end of the gripping block. Both ends of the connecting plate are in the shape of a "Ji".

[0012] Further, an upper rotating ring is rotatably connected to the upper end of the gripping block. A lower rotating ring is rotatably connected to the middle position of the connecting plate. A reset elastic member is sleeved on the upper end of the gripping block. The reset elastic member is located between the upper rotating ring and the lower rotating ring. The upper end of the reset elastic member is fixedly connected to the upper rotating ring, and the lower end of the reset elastic member is fixedly connected to the lower rotating ring.

[0013] Further, the internal and external pressure balance component includes a sealing block and a pulling - down elastic member. A ventilation hole is opened on the bucket cover. A sealing block is slidably connected in the ventilation hole. A pulling - down elastic member is sleeved on the upper end of the sealing block. The upper end of the pulling - down elastic member is fixedly connected to the sealing block, and the lower end of the pulling - down elastic member is fixedly connected to the bucket cover. Ventilation grooves are opened on the periphery of the middle position of the sealing block.

[0014] Furthermore, a chamfer is provided at the edge position of the bottom of the sealing block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. For the mixing and spraying device for manufacturing lightweight building materials, after injecting the paint into the paint bucket, only need to cover the bucket lid on the paint bucket and pull the positioning block upward. The positioning block will push out the arc plate through the pushing component, and the side wall of the arc plate will be tightly attached to the inner wall of the paint bucket, thus completing the sealing of the paint bucket. After the paint in the paint bucket is pumped out by the plunger spraying machine main body, the pressure in the paint bucket will decrease. Under the action of the atmospheric pressure, the bucket lid will move downward by itself, and scrape off the paint adhered to the inner wall of the paint bucket through the arc plate and the positioning block during the downward movement, reducing the waste of paint.

[0017] 2. For the mixing and spraying device for manufacturing lightweight building materials, after the paint in the paint bucket is used up, only need to open the internal and external pressure balance component, and then lift the bucket lid upward to take it out for adding paint. In order to reduce the friction between the bucket lid and the paint bucket, the positioning block can be pushed downward to make the arc plate lose the restriction of the pushing component, and then the arc plate will disengage from the inner wall of the paint bucket, facilitating the removal of the bucket lid.

[0018] 3. For the mixing and spraying device for manufacturing lightweight building materials, after pulling the positioning block upward to make the side wall of the arc plate tightly attached to the inner wall of the paint bucket, the grasping block can be rotated to make the hooking block hang on the connecting plate, thus preventing the positioning block from moving downward by itself and causing the arc plate to lose the restriction and return to the original position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0020] Figure 2 is a partial cross-sectional view of the whole of the present invention;

[0021] Figure 3 is of the present invention Figure 2 a partial enlarged structural diagram of part A in;

[0022] Figure 4 is of the present invention Figure 2 a partial enlarged structural diagram of part B in;

[0023] Figure 5 is a schematic connection structure diagram of the bucket lid and the positioning block of the present invention;

[0024] Figure 6 is a bottom view of the bucket lid and the positioning block of the present invention;

[0025] Figure 7 is a partial cross-sectional view of the bucket lid of the present invention;

[0026] Figure 8 For the present invention Figure 7 is a schematic diagram of a partially enlarged structure at position C in the present invention;

[0027] Figure 9 is a schematic diagram of the structure of the positioning block of the present invention;

[0028] Figure 10 is a bottom view of the positioning block of the present invention;

[0029] Figure 11 is a schematic diagram of the structure of the arc plate of the present invention;

[0030] Figure 12 is a schematic diagram of the connection structure between the barrel cover and the grasping block of the present invention;

[0031] Figure 13 is a bottom view of the barrel cover and the grasping block of the present invention;

[0032] Figure 14 is a schematic diagram of the structure of the grasping block of the present invention.

[0033] In the figure: 1. Plunger type spraying machine main body; 2. Paint bucket; 3. Positioning plate; 4. Barrel cover; 5. Slide groove; 6. Slide block; 7. Positioning block; 8. Elastic cushion layer; 9. Connecting ring; 10. Connecting plate; 11. Outer pushing extrusion block; 12. Receiving groove; 13. Anti - detachment groove; 14. Anti - detachment rod; 15. Pull - back elastic member; 16. Connecting block; 17. Arc plate; 18. Wedge - shaped block; 19. Grasping block; 20. Hook - hanging block; 21. Sealing block; 22. Ventilation groove; 23. Ventilation hole; 24. Pull - down elastic member; 25. Upper rotating ring; 26. Lower rotating ring; 27. Reset elastic member. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0035] Please refer to Figures 1 to 14, a mixing spraying device for manufacturing lightweight building materials, comprising a plunger spraying machine main body 1. Paint buckets 2 are installed on both sides of the plunger spraying machine main body 1. Three equally spaced positioning plates 3 are fixedly connected to the inner wall of the paint bucket 2. A positioning block 7 is slidably connected to each positioning plate 3. A bucket cover 4 slidably connected to the paint bucket 2 is provided between the three positioning blocks 7. A chute 5 is formed at a position on the outer wall of the bucket cover 4 close to the positioning plate 3. A slider 6 is slidably connected in the chute 5. The side wall of the slider 6 is fixedly connected to the positioning block 7. Chamfers are provided at both ends of the top of the positioning block 7. An arc plate 17 is provided between every two positioning blocks 7. The arc plate 17 is located at the bottom of the bucket cover 4 and is slidably connected to the bucket cover 4. A pushing assembly is connected between the arc plate 17 and the positioning block 7. Elastic cushions 8 are fixedly connected to the sides of the arc plate 17 and the positioning block 7 close to the inner wall of the paint bucket 2. Inner and outer pressure balance assemblies are connected to both sides of the bucket cover 4.

[0036] In the mixing spraying device for manufacturing lightweight building materials in the present invention, after injecting the paint into the interior of the paint bucket 2, it is only necessary to first align the positioning blocks 7 on the periphery of the bucket cover 4 with the positioning plates 3, then place the bucket cover 4 into the paint bucket 2, and pull the positioning blocks 7 upward. The positioning blocks 7 will push out the arc plate 17 through the pushing assembly, and the side wall of the arc plate 17 will be tightly attached to the inner wall of the paint bucket 2, making the interior of the paint bucket 2 in a closed environment. After the paint in the paint bucket 2 is drawn away by the plunger spraying machine main body 1, the amount of paint in the paint bucket 2 decreases, and the pressure will correspondingly decrease. Under the action of the external atmospheric pressure, the bucket cover 4 will be pushed downward by the atmospheric pressure. During the downward movement, the bucket cover 4 will scrape the paint adhered to the inner wall of the paint bucket 2 through the arc plate 17 and the positioning blocks 7, reducing the amount of paint adhered to the inner wall of the paint bucket 2 and avoiding waste of paint. In addition, elastic cushions 8 are fixedly connected to the sides of the positioning blocks 7 and the arc plate 17 close to the inner wall of the paint bucket 2, enabling the positioning blocks 7 and the arc plate 17 to better fit the inner wall of the paint bucket 2, and thus the scraping effect on the paint adhered to the inner wall of the paint bucket 2 will also be better. In addition, the structures of the plunger spraying machine main body 1 and the paint bucket 2 in the present invention are similar to those of an electronically controlled adjustable plunger spraying machine structure disclosed in a patent with a patent authorization announcement number of CN118831762B in the prior art, so no further elaboration will be made here.

[0037] As a preferred technical solution of the present invention, the pushing assembly includes an outward pushing extrusion block 11 and a wedge-shaped block 18. The lower ends of both sides of the positioning block 7 are fixedly connected to the outward pushing extrusion block 11. The two ends of the arc plate 17 are fixedly connected to the wedge-shaped block 18. The end of the wedge-shaped block 18 is an inverted trapezoid, and the outward pushing extrusion block 11 is matched with the wedge-shaped block 18.

[0038] Specifically, when the bucket lid 4 remains stationary and the positioning block 7 is pulled upward, the positioning block 7 will drive the outer pushing and squeezing block 11 to move upward together. The outer pushing and squeezing block 11 will push the wedge block 18 to move away from the center of the paint bucket 2, and the wedge block 18 will drive the arc plate 17 to move away from the center of the paint bucket 2 together until the side wall of the positioning block 7 abuts against the side wall of the arc plate 17. At this time, it is difficult for the positioning block 7 to be pulled upward, and the side wall of the arc plate 17 will also abut against the inner wall of the paint bucket 2, thus completing the sealing of the paint bucket 2.

[0039] As a preferred technical solution of the present invention, a storage groove 12 is opened at the bottom of the bucket lid 4. An anti - detachment groove 13 is opened at the end of the storage groove 12. An anti - detachment rod 14 is slidably connected inside the anti - detachment groove 13. One end of the anti - detachment rod 14 is fixedly connected with a connection block 16, and the connection block 16 is fixedly connected with the arc plate 17. A pulling elastic member 15 is sleeved outside the anti - detachment rod 14 near the connection block 16. One end of the pulling elastic member 15 is fixedly connected with the side wall of the connection block 16, and the other end of the pulling elastic member 15 is fixedly connected with the inner wall of the storage groove 12.

[0040] Specifically, when the bucket lid 4 remains stationary and the positioning block 7 moves downward, the outer pushing and squeezing block 11 will leave the wedge block 18, and the wedge block 18 and the arc plate 17 will lose their restraint. At this time, the pulling elastic member 15 will pull the arc plate 17 to move away from the inner wall of the paint bucket 2 when it loses its restraint, so that the arc plate 17 is separated from the inner wall of the paint bucket 2, making it more labor - saving and convenient to move the bucket lid 4.

[0041] As a preferred technical solution of the present invention, a connecting ring 9 is provided at the middle position of the positioning block 7. All three positioning blocks 7 are fixedly connected with the connecting ring 9, and a connecting plate 10 is fixedly connected at the middle position of the connecting ring 9.

[0042] As a preferred technical solution of the present invention, a gripping block 19 is rotatably connected at the middle position of the bucket lid 4. The gripping block 19 is in the shape of a capital "I". Hook - hanging blocks 20 are fixedly connected to both sides of the upper end of the gripping block 19. Both ends of the connecting plate 10 are in the shape of "Ji".

[0043] Specifically, after the bucket lid 4 and the positioning block 7 are inside the paint bucket 2, if it is necessary to seal the paint bucket 2, at this time, only need to rotate the gripping block 19 first to stagger the gripping block 19 from the connecting plate 10. Then, press the top of the gripping block 19 with the palm of one hand, and then use the fingers of this hand to pull the connecting plate 10 upward until the connecting plate 10 cannot be pulled (at this time, the side wall of the positioning block 7 will abut against the side wall of the arc plate 17). Then, rotate the palm to make the gripping block 19 coincide with the connecting plate 10 (this action is manifested as clenching the hand against the gripping block 19). During the coincidence process, the hook block 20 will be stuck in the "Ji" - shaped position of the connecting plate 10, so that the connecting plate 10 will not move downward by itself. Since the positioning block 7 is connected to the connecting plate 10 through the connecting ring 9, the position of the positioning block 7 will also be fixed, preventing the positioning block 7 from moving downward by itself.

[0044] As a preferred technical solution of the present invention, an upper rotating ring 25 is rotatably connected to the upper end of the gripping block 19, a lower rotating ring 26 is rotatably connected to the middle position of the connecting plate 10. A reset elastic member 27 is sleeved on the upper end of the gripping block 19. The reset elastic member 27 is located between the upper rotating ring 25 and the lower rotating ring 26. The upper end of the reset elastic member 27 is fixedly connected to the upper rotating ring 25, and the lower end of the reset elastic member 27 is fixedly connected to the lower rotating ring 26.

[0045] Specifically, when it is necessary to move the positioning block 7 downward, only need to rotate the gripping block 19 to stagger the hook block 20 from the connecting plate 10. Then, under the action of the reset elastic member 27, the connecting plate 10 and the connecting ring 9 will move downward, and the connecting ring 9 will drive the positioning block 7 to move downward, so that the whole operation process is simpler and more convenient.

[0046] As a preferred technical solution of the present invention, the internal and external pressure balance assembly includes a sealing block 21 and a downward - pulling elastic member 24. An air - permeable hole 23 is opened on the bucket lid 4. A sealing block 21 is slidably connected in the air - permeable hole 23. A downward - pulling elastic member 24 is sleeved on the upper end of the sealing block 21. The upper end of the downward - pulling elastic member 24 is fixedly connected to the sealing block 21, and the lower end of the downward - pulling elastic member 24 is fixedly connected to the bucket lid 4. An air - permeable groove 22 is opened on the periphery of the middle position of the sealing block 21.

[0047] Specifically, the air - permeable hole 23 is located directly below the connecting plate 10. After the gripping block 19 is staggered from the connecting plate 10, the lower end of the gripping block 19 will also be staggered from the air - permeable hole 23. At this time, the sealing block 21 will lose the restriction. Under the action of the downward - pulling elastic member 24, the sealing block 21 will move downward to connect the top and bottom of the bucket lid 4 through the air - permeable hole 23 and the air - permeable groove 22, so as to facilitate the entry of external air into the paint bucket 2 and thus facilitate the movement of the bucket lid 4.

[0048] As a preferred technical solution of the present invention, a chamfer is provided at the edge position of the bottom of the sealing block 21.

[0049] Specifically, during the rotation of the gripping block 19 until it coincides with the connecting plate 10, the gripping block 19 will squeeze the sealing block 21 back into the ventilation hole 23, seal the ventilation hole 23 through the sealing block 21, and then separate the top and bottom of the bucket lid 4, so as to form a closed environment inside the paint bucket 2.

[0050] Working principle: After the paint is injected into the interior of the paint bucket 2, first align the positioning block 7 on the circumferential side of the bucket lid 4 with the positioning plate 3, then place the bucket lid 4 into the paint bucket 2. Subsequently, first rotate the gripping block 19 to stagger the gripping block 19 from the connecting plate 10. Then, press the top of the gripping block 19 with the palm of one hand, and then use the fingers of this hand to pull the connecting plate 10 upward (when the connecting plate 10 moves upward, the connecting plate 10 will drive the positioning block 7 to move upward synchronously through the connecting ring 9, and when the positioning block 7 moves upward, it will push the arc plate 17 towards the inner wall direction of the paint bucket 2 through the pushing component) until the connecting plate 10 cannot be pulled (at this time, the side wall of the positioning block 7 will abut against the side wall of the arc plate 17). Then, rotate and clench the palm (when rotating the palm, the gripping block 19 will rotate synchronously, and during the rotation process, the hooking block 20 will be stuck in the "ji" - shaped position of the connecting plate 10), so that the gripping block 19 coincides with the connecting plate 10. After the paint in the paint bucket 2 is used up, only need to rotate the gripping block 19 (after the gripping block 19 is staggered from the connecting plate 10 and the ventilation hole 23, first under the action of the downward - pulling elastic member 24, the sealing block 21 will move downward, connect the top and bottom of the bucket lid 4 through the ventilation hole 23 and the ventilation groove 22, so as to facilitate the entry of external air into the interior of the paint bucket 2. Subsequently, under the action of the reset elastic member 27, the connecting plate 10 and the connecting ring 9 will move downward, and the connecting ring 9 will drive the positioning block 7 to move downward. After the arc plate 17 loses the restriction, it will also move away from the inner wall of the paint bucket 2), and then the bucket lid 4 can be taken out more easily.

[0051] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A mixing spraying device for manufacturing lightweight building materials, comprising a plunger spraying machine body (1), with paint buckets (2) installed on both sides of the plunger spraying machine body (1), characterized in that: The inner wall of the paint bucket (2) is fixedly connected with three equidistantly distributed positioning plates (3), each positioning plate (3) is slidably connected with a positioning block (7), a bucket cover (4) slidably connected to the paint bucket (2) is provided between the three positioning blocks (7), a slide groove (5) is provided at a position of the outer wall of the bucket cover (4) close to the positioning plate (3), a slider (6) is slidably connected in the slide groove (5), the side wall of the slider (6) is fixedly connected to the positioning block (7), both ends of the top of the positioning block (7) are chamfered, an arc plate (17) is provided between every two positioning blocks (7), the arc plate (17) is located at the bottom of the bucket cover (4), and the arc plate (17) is slidably connected to the bucket cover (4), a pushing component is connected between the arc plate (17) and the positioning block (7), an elastic cushion layer (8) is fixedly connected to one side of the arc plate (17) and the positioning block (7) close to the inner wall of the paint bucket (2), and both sides of the bucket cover (4) are connected to internal and external pressure balancing components; The pushing assembly comprises an outward pushing extrusion block (11) and a wedge block (18), the lower ends of both sides of the positioning block (7) are fixedly connected to the outward pushing extrusion block (11), the two ends of the arc plate (17) are fixedly connected to the wedge block (18), the end of the wedge block (18) is an inverted trapezoid, and the outward pushing extrusion block (11) matches the wedge block (18); The internal and external pressure balancing assembly comprises a sealing block (21) and a pull-down elastic member (24); a vent hole (23) is provided on the barrel cover (4); the sealing block (21) is slidably connected in the vent hole (23); the upper end of the sealing block (21) is sleeved with the pull-down elastic member (24); the upper end of the pull-down elastic member (24) is fixedly connected to the sealing block (21); the lower end of the pull-down elastic member (24) is fixedly connected to the barrel cover (4); and a vent groove (22) is provided around the middle of the sealing block (21).

2. A mixing spraying device for manufacturing lightweight building materials according to claim 1, characterized in that: The bottom of the barrel cover (4) is provided with a storage groove (12), the end of the storage groove (12) is provided with an anti-slip groove (13), the interior of the anti-slip groove (13) is slidably connected with an anti-slip rod (14), one end of the anti-slip rod (14) is fixedly connected to a connecting block (16), the connecting block (16) is fixedly connected to an arc plate (17), and the outer portion of the anti-slip rod (14) near one end of the connecting block (16) is sleeved with a pull-back elastic member (15), one end of the pull-back elastic member (15) is fixedly connected to a side wall of the connecting block (16), and the other end of the pull-back elastic member (15) is fixedly connected to an inner wall of the storage groove (12).

3. A mixing spraying device for manufacturing lightweight building materials according to claim 1, characterized in that: A connecting ring (9) is provided in the middle of the positioning block (7), the three positioning blocks (7) are all fixedly connected to the connecting ring (9), and a connecting plate (10) is fixedly connected to the middle of the connecting ring (9).

4. A mixing spraying device for manufacturing lightweight building materials according to claim 3, characterized in that: A gripping block (19) is rotatably connected to the middle of the barrel cover (4), the gripping block (19) is in an I-shape, hooking blocks (20) are fixedly connected to both sides of the upper end of the gripping block (19), and both ends of the connecting plate (10) are in a "J" shape.

5. A mixing spraying device for manufacturing lightweight building materials according to claim 4, characterized in that: The upper end of the gripping block (19) is rotatably connected to an upper swivel ring (25), and the middle position of the connecting plate (10) is rotatably connected to a lower swivel ring (26). The upper end of the gripping block (19) is sleeved with a reset elastic member (27), and the reset elastic member (27) is located between the upper swivel ring (25) and the lower swivel ring (26). The upper end of the reset elastic member (27) is fixedly connected to the upper swivel ring (25), and the lower end of the reset elastic member (27) is fixedly connected to the lower swivel ring (26).

6. A mixing spraying device for manufacturing lightweight building materials according to claim 1, characterized in that: The edge of the bottom of the sealing block (21) is chamfered.

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