A building construction wall surface mortar spraying device

Abstract

The application relates to the technical field of building wall decoration, and provides a building construction wall mortar spraying equipment, which comprises a rack, a spiral conveying pipe installed on the rack and a feeding bin installed on the top of the spiral conveying pipe, a pressurized spraying pipe is installed on the discharging port of the spiral conveying pipe, a filtering component for pretreating mortar is installed on the top of the feeding bin, a stepped discharging assembly is installed in the feeding bin, the stepped discharging assembly is connected with an air extraction assembly installed on the outer wall of the feeding bin, the stepped discharging assembly comprises a conical ring pipe fixed to the inner wall of the feeding bin and an outer ring clamping plate used for connecting the conical ring pipe with the air extraction assembly. When the application is used, vibration filtering, stepped discharging and suction and dynamic uniform foaming are cooperated, a bubble treatment structure suitable for the mortar spraying equipment is constructed, the problem of incomplete mortar bubble treatment and the problem of hollowing and cracking of the thermal insulation layer are solved, and the construction quality of the building wall thermal insulation system is improved.

Description

Technical Field

[0001] This invention relates to the field of building wall decoration technology, and more specifically, to a building construction wall mortar spraying equipment. Background Technology

[0002] Wall mortar spraying equipment is a key piece of machinery in construction engineering. It can achieve efficient and uniform spraying of mortar and is widely used in decoration processes such as wall plastering. It is an important category of equipment in building decoration engineering.

[0003] Thermal insulation mortar, as the core material of building insulation system, is composed of lightweight aggregate, cement and modified additives. Its spraying and forming quality depends not only on the material itself, but also directly on the construction effect of the spraying equipment, and ultimately determines the performance and durability of the insulation layer.

[0004] However, existing mortar spraying equipment requires manual shoveling of mortar into the equipment through an open feeding method to achieve continuous material supply. This open feeding method easily allows external air to enter the equipment with the mortar. At the same time, the subsequent mixing, shearing and conveying of the mortar will cause new micro-bubbles to be generated in the mortar. These residual bubbles form cavities after the mortar solidifies, which not only significantly weakens the bonding strength between the mortar and the wall, but also destroys the internal density of the mortar. Ultimately, this leads to cracking and delamination of the insulation layer due to stress concentration, which poses a serious threat to its long-term stability and durability.

[0005] Therefore, this application proposes a wall mortar spraying device for building construction to solve the above problems. Summary of the Invention

[0006] Technical problem to be solved: In view of the problems existing in the prior art, the purpose of this invention is to provide a wall mortar spraying equipment for building construction, which solves the problem that the existing mortar spraying equipment has air intake through open feeding and subsequent processes, resulting in air bubbles in the mortar, causing cavities and cracking and delamination of the insulation layer, and affecting long-term stability.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wall mortar spraying device for building construction, comprising a frame, a spiral conveying pipe installed on the frame, and a feed hopper installed on the top of the spiral conveying pipe. A pressurized spraying pipe is installed at the discharge port of the spiral conveying pipe, and a filter material component for pre-treating the mortar is installed on the top of the feed hopper. A stepped discharge assembly is installed inside the feed hopper, and the stepped discharge assembly is connected to an air extraction assembly installed on the outer wall of the feed hopper. The stepped discharge assembly includes: a conical annular pipe fixed to the inner wall of the feed hopper and an outer ring clamp for connecting the conical annular pipe to the air extraction assembly. A rotatable conical sleeve is provided in the middle of the conical annular pipe, and multi-stage stirring blades distributed in a stepped manner from top to bottom are fixedly installed on the outer wall of the conical sleeve. The multi-stage stirring blades and the air extraction assembly work together to mechanically break up air bubbles and simultaneously extract gas, thereby achieving mortar densification and ensuring the quality of wall construction.

[0008] In a new embodiment, an assembly for driving multi-stage stirring blades is installed in the middle of the conical sleeve. The assembly includes a cross-shaped base column and a heating element. A cross-shaped base column is installed at the lower part of the conical annular tube, and the conical sleeve is rotatably mounted on the outside of the cross-shaped base column. A drive motor is installed in the recessed part at the top of the cross-shaped base column, and the output end of the drive motor is fixedly connected to the bottom of the conical sleeve. The surfaces of the conical sleeve and the multi-stage stirring blades are covered with an anti-stick coating. The heating element includes a first heating element embedded in the wall of the conical sleeve and a second heating element embedded in the blades of the multi-stage stirring blades.

[0009] In a new embodiment, the assembly assembly further includes a control unit mounted on the frame and electrically connected to the drive motor and the heating element, respectively. The control unit is configured to: determine the mortar viscosity by monitoring the load current of the drive motor and control the power of the heating element accordingly; increase the heating power to reduce the mortar viscosity when the load current is higher than a set threshold; and reduce or turn off the heating power when the load current is lower than the set threshold.

[0010] In a new embodiment, the air extraction assembly includes: an assembly frame mounted on the side wall of the feed hopper; an air extraction pump mounted on the assembly frame; the air extraction port of the air extraction pump is connected to one end of a connecting pipe, and the other end of the connecting pipe penetrates the outer wall of the feed hopper and is connected to the exhaust end of a diversion pipe located inside the feed hopper; both air extraction ends of the diversion pipe are connected to inclined air extraction rings; the inclined air extraction rings are fixedly mounted on a conical ring pipe by an outer ring clamp, and the air extraction port of the inclined air extraction rings is inclined downward toward the internal stirring area of ​​the conical ring pipe.

[0011] In a new embodiment, the pressurized spray pipe is equipped with a dynamic foaming component for secondary treatment of mortar. The dynamic foaming component includes a jacket ring, an outer gear disc, and flow channel pipes. The jacket ring is fixedly installed on the inner wall of the pressurized spray pipe, and the outer gear disc is rotatably installed in the middle of the jacket ring. Four flow channel pipes are equidistantly arranged in a ring on the outer gear disc, and a corrugated cavity is opened in the middle of the flow channel pipe. A drive box is installed at the bottom of the pressurized spray pipe, and a micro motor is installed in the drive box. A gear is fixedly installed at the output end of the micro motor. The gear is located at the slot at the bottom of the pressurized spray pipe and meshes with the outer gear disc.

[0012] In a new embodiment, a sealing circular plate is installed at the discharge port of the spiral conveying pipe, and multiple magnetic suction pipes are installed in a ring at equal intervals on the sealing circular plate. The magnetic suction pipes are magnetically sealed to the inlet end of the flow channel pipe.

[0013] In a new embodiment, a spiral pressurizing blade is provided inside the pressurizing spray pipe. The main shaft of the spiral pressurizing blade is coaxially and fixedly connected to the main shaft of the spiral conveying pipe through a coupling, and both pass through the middle of the sealing circular plate.

[0014] In a new embodiment, the pressurized spray pipe is provided with a spray washing assembly, which includes: an annular pipe fixedly installed on the outer wall of the pressurized spray pipe; multiple magnetically connected spray pipes, all of which are interconnected with the annular pipe through extension pipes, and the nozzles of the magnetically connected spray pipes are arranged facing the port of the flow channel pipe; and a water supply pipe, one end of which is connected to the water inlet of the annular pipe, and the other end of which is connected to a water supply source set on the frame.

[0015] In a new embodiment, the filter media component includes a filter screen box installed on the top of the feed hopper, a vibration motor for driving the filter screen box to vibrate, and an elastic support member connected between the filter screen box and the feed hopper, for filtering the added mortar and preventing clumping and blockage.

[0016] Beneficial effects: Compared with the prior art, the advantages of the present invention are as follows: 1. The present application constructs a mortar bubble treatment structure adapted to mortar spraying equipment by integrating a synergistic treatment mechanism of vibration filtration, stepped material drop suction and dynamic bubble homogenization. From intercepting impurities at the source and initially suppressing bubble generation, to mechanical crushing and negative pressure extraction in the core link, and then to subsequent bubble homogenization, it effectively solves the problem of hollow and cracked insulation layer caused by incomplete treatment of mortar encapsulated bubbles, and significantly improves the construction quality of building wall insulation system.

[0017] 2. By setting up a stepped material feeding component and an air extraction component to form a closed loop of mechanical crushing and negative pressure extraction, the multi-stage mixing blades ensure that the mortar is subjected to full-area shearing through multiple probabilistic impacts, while the downward-sloping suction ring can accurately and efficiently extract the released microbubbles and free gas. Combined with real-time monitoring of the drive motor load current, the mortar viscosity is intelligently judged, and the power of the heating element is automatically controlled to achieve adaptive adjustment of the construction viscosity. This active defoaming and intelligent control ensures that a stable and excellent defoaming effect can be obtained under different working conditions, significantly improving the subsequent construction quality of the mortar spraying equipment.

[0018] 3. The mortar, after the aforementioned treatment, is subjected to gradient pressurization in the spiral conveying pipe, further compressing any remaining air bubbles. It then seamlessly enters the flow channel of the dynamic bubble equalization component. The wave cavity with consistent waveform phase inside the flow channel allows the mortar to undergo periodic compression and expansion as it flows through, generating continuous shearing and kneading forces. This process ultimately and finely equalizes any tiny air bubbles that may remain or be generated during the conveying process. This process ensures the extreme density of the mortar before spraying. At the same time, the stable high pressure provided by the spiral pressurizing blades ensures the uniformity and adhesion of the mortar spray, jointly preventing wall hollowing and cracking problems.

[0019] 4. By setting up a magnetic connection structure and a rotating flow channel tube, the magnetic sealing connection between the flow channel tube and the magnetic suction pipe, combined with the automatic alignment of the flow channel tube with the magnetic nozzle after its revolution, allows the equipment to switch quickly and conveniently between construction and cleaning modes. This enables high-pressure flushing of the flow channel inside the flow channel tube, ensuring no mortar residue. This not only guarantees the stability of the bubble treatment effect during each construction, but also minimizes daily maintenance time and workload, greatly improving equipment utilization and long-term economic efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0022] Figure 3 This is a front view of the present invention.

[0023] Figure 4 This is a schematic diagram of the filter media component structure of the present invention.

[0024] Figure 5 This is a schematic diagram of the internal structure of the feed hopper of the present invention.

[0025] Figure 6 This is a schematic diagram of the internal structure of the tapered annular tube of the present invention.

[0026] Figure 7 This is a schematic diagram of the air extraction component structure of the present invention.

[0027] Figure 8 This is a schematic diagram of the sealing circular plate structure of the present invention.

[0028] Figure 9 This is a schematic diagram of the internal structure of the pressurized spray nozzle of the present invention.

[0029] Figure 10 This is a schematic diagram of the dynamic bubble equalization component structure of the present invention.

[0030] Figure 11 This is a schematic diagram of the internal structure of the flow channel tube of the present invention.

[0031] Figure 12 This is an internal schematic diagram showing the connection state between the spiral conveying pipe and the pressurized spraying pipe of the present invention.

[0032] The attached diagram is labeled as follows: 1. Frame;

[0033] 2. Spiral conveyor pipe; 21. Sealing circular plate; 22. Magnetic suction pipe;

[0034] 3. Feed hopper;

[0035] 4. Pressurized spray nozzle; 41. Spiral pressurized blades;

[0036] 5. Stepped material feeding assembly; 51. Conical annular tube; 52. Outer ring clamping plate; 53. Conical sleeve; 54. Multi-stage mixing blades;

[0037] 6. Vacuum assembly; 61. Assembly frame; 62. Vacuum pump; 63. Connecting pipe; 64. Diverter pipe; 65. Angled vacuum ring;

[0038] 7. Assembly components; 71. Cross-shaped base column; 72. Heating element; 721. First heating element; 722. Second heating element;

[0039] 8. Dynamic bubble equalization assembly; 81. Jacket ring; 82. External gear disc; 83. Flow channel tube; 831. Wave cavity; 84. Gear;

[0040] 9. Spraying assembly; 91. Ring pipe; 92. Magnetic nozzle; 93. Water supply pipe. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0042] This application provides a wall mortar spraying device for building construction, which solves the problem that existing mortar spraying devices, due to open feeding and air intake, generate air bubbles in subsequent processes, leading to mortar cavities and causing insulation layer cracking and delamination, affecting long-term stability. In use, through vibration filtration, stepped material drop suction and dynamic bubble equalization, a bubble treatment structure adapted to the mortar spraying device is constructed, solving the problem of incomplete mortar bubble treatment causing insulation layer delamination and cracking, and improving the construction quality of building wall insulation system.

[0043] The technical solutions in this application are intended to solve the above-mentioned technical problems, and the overall approach is as follows.

[0044] Example 1, please refer to Figures 1-12 This application provides a wall mortar spraying device for building construction, including a frame 1, a spiral conveying pipe 2 mounted on the frame 1, and a feed hopper 3 mounted on the top of the spiral conveying pipe 2. A pressurized spraying pipe 4 is installed at the discharge port of the spiral conveying pipe 2, and a filter material component for pre-treating the mortar is installed on the top of the feed hopper 3. A stepped discharge assembly 5 is installed inside the feed hopper 3, and the stepped discharge assembly 5 is connected to an air extraction assembly 6 mounted on the outer wall of the feed hopper 3. The stepped discharge assembly 5 includes... Includes: a conical annular pipe 51 fixed to the inner wall of the feed hopper 3 and an outer ring clamping plate 52 for connecting the conical annular pipe 51 to the air extraction component 6. The conical annular pipe 51 is provided with a rotatable conical sleeve 53 in the middle. Multi-stage stirring blades 54 distributed in a stepped manner from top to bottom are fixedly installed on the outer wall of the conical sleeve 53. The multi-stage stirring blades 54 and the air extraction component 6 work together to break up air bubbles and extract gas at the same time through mechanical means, so as to achieve the densification of mortar and ensure the quality of wall construction.

[0045] Furthermore, the filter media component includes a filter screen box installed on the top of the feed hopper 3, a vibration motor for driving the filter screen box to vibrate, and an elastic support member connected between the filter screen box and the feed hopper 3, for filtering the added mortar and preventing clumping and blockage.

[0046] In a preferred embodiment of this solution, the building construction wall mortar spraying equipment provided in this application uses the synergistic action of the stepped material drop component 5 and the air extraction component 6 to treat the air bubbles encased in the mortar. The multi-stage mixing blades 54 create multiple random impacts and shearings on the falling mortar from multiple angles, effectively breaking large air bubbles into micro bubbles. At the same time, the air extraction component 6 immediately extracts the released gas. Based on this, combined with the continuous kneading of the wave structure in the subsequent flow channel pipe 83, the mortar achieves extremely high density, completely solving the problems of hollow and cracked insulation layers and improving the spraying quality of the insulation mortar.

[0047] Specifically, the operation process of the wall mortar spraying equipment for building construction is as follows:

[0048] First, external workers pre-mix the thermal insulation mortar and manually shovel it into the filter media component at the top of the feed hopper 3. At this time, the vibration motor in the filter media component starts, driving the filter screen box to vibrate at high frequency. The purpose is to separate any lumps or large particles that may exist in the mortar. On the one hand, if lumps and large particles enter the subsequent pipelines, they can easily cause blockage of the spiral conveyor pipe 2 or the flow channel pipe 83, interrupting the continuous operation of the equipment. On the other hand, the intense friction between particles will trap extra air to form bubbles. Vibration filtration can reduce the generation of such unnecessary bubbles through dispersion and screening. At the same time, the elastic support between the filter screen box and the feed hopper 3 will absorb the vibration energy, preventing the high-frequency vibration from being transmitted to the main body of the equipment such as the frame 1 and the spiral conveyor pipe 2. This prevents the equipment from loosening bolts and deforming due to long-term vibration, ensuring overall stability. Through this step, impurities in the mortar are effectively intercepted, and the initial amount of bubbles is significantly reduced, laying the foundation for the subsequent defoaming process.

[0049] Second, the filtered mortar automatically falls, and the edge mortar slides down the inner wall of the feed hopper 3. Finally, they all converge and fall into the conical ring pipe 51 of the stepped feeding component 5. Since the top of the conical ring pipe 51 is funnel-shaped, the mortar will flow down the inclined surface of the funnel and gradually enter the action range of the multi-stage stirring blades 54. At this time, the drive motor on the cross base column 71 starts, driving the conical sleeve 53 and the multi-stage stirring blades 54 distributed in a stepped manner on its outer wall to rotate synchronously. The falling mortar clumps fall freely in the annular space between the conical ring pipe 51 and the conical sleeve 53. During the falling process, they will randomly collide with the multi-stage stirring blades 54 of different levels and will have random and multiple collisions with the blades of different levels, thus being subjected to strong shearing and scattering effects, effectively impacting, pulling and shearing the large air bubbles inside into micro bubbles.

[0050] At the same time, the air extraction component 6 and the stepped material feeding component 5 work synchronously. After the air extraction pump 62 is started, it forms a negative pressure air extraction through the connecting pipe 63 and the diversion pipe 64 to the connected inclined air extraction ring 65. The downward inclined air extraction direction of the inclined air extraction ring 65 is precisely aimed at the core area of ​​the paddle mixing, forming an annular negative pressure coverage area in this area. The broken microbubbles and free air are sucked in through the inclined air extraction ring 65 and then discharged outside the equipment through the diversion pipe 64 and the connecting pipe 63, forming a closed loop of large bubble dispersal and free air extraction. Through this step, the original large bubbles in the mortar can be completely dispersed, and the free air released after dispersal can be extracted. In the end, only a small number of small and uniformly dispersed microbubbles remain in the mortar, completely avoiding the solidification cavity problem caused by the residue of large bubbles.

[0051] Third, the mortar pre-treated by the stepped material feeding component 5 (breaking up large air bubbles, removing free gas, and adjusting viscosity) naturally falls into the spiral conveying pipe 2 (the spiral conveying pipe 2 is also a spiral conveyor, which has its own drive device and built-in spiral conveying blades). The mortar pressurized by the spiral conveying pipe 2 enters the magnetic suction pipe 22 through the sealing circular plate 21 of the discharge port. The magnetic suction structure at the end of the magnetic suction pipe 22 is magnetically sealed and fitted with the inlet end of the flow channel pipe 83, ensuring that the mortar enters the flow channel pipe 83 seamlessly. Then, it is discharged from the flow channel pipe 83 into the pressurized spray pipe 4. Finally, through the pipe connected to the pressurized spray pipe 4 and the mortar nozzle, the spraying operation on the building wall is completed.

[0052] Among them, the wave cavity 831 of the wave-shaped flow channel inside the flow channel 83 is forced to follow the shape of the flow channel to produce undulating motion when the mortar passes through at high speed under pressure. It is squeezed and accelerated at the crest and relaxed at the trough. This rhythmic change of tension and relaxation generates a continuous and gentle shearing and kneading force on the mortar throughout the flow process. It can effectively further disperse and homogenize the residual micro air bubbles with slightly larger size, thereby ensuring that the sprayed mortar is extremely dense and fundamentally eliminating the hollow and cracked wall surface caused by the concentration of air bubbles after subsequent spraying.

[0053] Fourth, in the subsequent cleaning stage, when the equipment is shut down after construction, the micro motor in the drive box at the bottom of the pressurized spray pipe 4 is first started. The gear 84 meshes and drives the outer gear plate 82 to rotate, causing the four flow channel pipes 83 on the outer gear plate 82 to revolve around the axis of the pressurized spray pipe 4 until the inlet end of the flow channel pipe 83 is precisely aligned with the magnetic contact spray pipe 92 on the sealing round plate 21. Then the spray washing component 9 starts automatically. The water supply source on the frame 1 injects high-pressure water into the annular pipe 91 on the sealing round plate 21 through the water supply pipe 93. The nozzles of the magnetic contact spray pipes 92, which are distributed in a ring on the annular pipe 91, are aligned with the port of the flow channel pipe 83. The high-pressure water flow washes away the residual mortar along the inner wall of the flow channel pipe 83 (it is recommended to clean it immediately when not in use. If the residual mortar solidifies, it will block the flow channel pipe 83 or change the kneading effect of the inner wave cavity 831, affecting the efficiency of dispersing bubbles next time). After the spray washing is completed, it can be ensured that there is no residue on the inner wall of the flow channel pipe 83, ensuring a stable bubble dispersing effect when the equipment is started next time, and extending the service life of the equipment.

[0054] Please see Figure 6 and Figure 7The conical sleeve 53 has an assembly 7 installed in the middle to drive the multi-stage stirring blades 54. The assembly 7 includes a cross base column 71 and a heating element 72. The lower part of the conical annular tube 51 is equipped with the cross base column 71, and the conical sleeve 53 is rotatably mounted on the outside of the cross base column 71. A drive motor is installed in the recessed part of the top of the cross base column 71, and the output end of the drive motor is fixedly connected to the bottom of the conical sleeve 53. The surfaces of the conical sleeve 53 and the multi-stage stirring blades 54 are covered with an anti-stick coating. The heating element 72 includes a first heating element 721 embedded in the wall of the conical sleeve 53 and a second heating element 722 embedded in the blades of the multi-stage stirring blades 54.

[0055] Furthermore, the assembly component 7 also includes a control unit, which is mounted on the frame 1 and electrically connected to the drive motor and the heating element 72 respectively. The control unit is configured to: determine the mortar viscosity by monitoring the load current of the drive motor and control the power of the heating element 72 accordingly; increase the heating power to reduce the mortar viscosity when the load current is higher than a set threshold; and reduce or turn off the heating power when the load current is lower than the set threshold.

[0056] In the preferred embodiment of this scheme, during the free fall of the mortar lump within the annular space between the conical annular pipe 51 and the conical sleeve 53, the control unit installed on the frame 1 monitors the load current of the drive motor in real time. The mortar viscosity is a key factor affecting the motor load.

[0057] In scenario one, when the ambient temperature decreases or the mortar moisture evaporates, the viscosity increases, and the rotational resistance of the multi-stage mixing blade 54 increases, causing the motor load current to exceed the set threshold. At this time, the control unit will instruct the first heating element 721 (embedded in the wall of the conical sleeve 53) and the second heating element 722 (embedded in the blade of the multi-stage mixing blade 54) to increase the power, raise the mortar temperature through heat conduction, reduce the viscosity to reduce the motor load, and ensure that the blade's ability to disperse large air bubbles is not affected.

[0058] In the second scenario, if the current is below the threshold (indicating that the viscosity is too low), the control unit will reduce or turn off the heating power to prevent the mortar from being over-diluted, causing the microbubbles to re-aggregate with the mortar flow, thus ensuring the uniform dispersion of the microbubbles. This adaptive adjustment can keep the mortar viscosity stable, ensuring both the dispersal efficiency of large bubbles and the uniform distribution of microbubbles, thus providing a guarantee for the stability of the slurry in the subsequent conveying and spraying process.

[0059] The above adaptive adjustment can keep the mortar viscosity stable, ensuring both the efficiency of breaking up large air bubbles and maintaining the uniform distribution of micro bubbles, thus guaranteeing the stability of the mortar in subsequent transportation and spraying processes.

[0060] Meanwhile, the anti-stick coating on the surface of the cone sleeve 53 and the multi-stage stirring blade 54 solves the problem of mortar adhering to and encapsulating air bubbles, ensuring that the air bubbles are always in a free state and easy to remove.

[0061] Please see Figure 5 and Figure 7 The air extraction assembly 6 includes: an assembly frame 61, installed on the side wall of the feed hopper 3; an air extraction pump 62, installed on the assembly frame 61; the air extraction port of the air extraction pump 62 is connected to one end of the connecting pipe 63, and the other end of the connecting pipe 63 passes through the outer wall of the feed hopper 3 and is connected to the exhaust end of the diversion pipe 64 located inside the feed hopper 3. Both air extraction ends of the diversion pipe 64 are connected to inclined air extraction rings 65; the inclined air extraction rings 65 are fixedly installed on the conical ring pipe 51 by the outer ring clamp 52, and the air extraction port of the inclined air extraction rings 65 is inclined downward toward the internal stirring area of ​​the conical ring pipe 51.

[0062] In the preferred embodiment of this solution, an assembly frame 61, an air pump 62, a connecting pipe 63, a diverter pipe 64, and an inclined air extraction ring 65 are provided. The inclined air extraction ring 65 is fixed to the conical annular pipe 51 by an outer ring clamp 52, and its air extraction port is inclined downward, precisely aligned with the mixing area (the annular space between the conical annular pipe 51 and the conical sleeve 53). This arrangement aims to efficiently extract the free gas released after the multi-stage mixing blades 54 break up the air bubbles in the mortar, while effectively preventing the intake of slurry. Furthermore, the two inclined air extraction rings 65 form annular air extraction areas of upper and lower layers, which significantly improves the gas removal efficiency.

[0063] Secondly, the angled structure of the 65-inch inclined air extraction ring and its downward orientation form a double anti-clogging guarantee. If the air extraction port is horizontal or upward, the mortar being mixed at high speed is easily sucked into the air extraction port by negative pressure, which can lead to pipe blockage. However, the downward angle can use gravity to allow the mortar to flow downward naturally, extracting only light free air, reducing the probability of mortar entering the air extraction port, reducing the risk of pipe blockage, and reducing the frequency of equipment shutdown for cleaning.

[0064] In summary, the air extraction component 6 can quickly extract free air and microbubbles not encapsulated by mortar, preventing microbubbles from re-aggregating into large bubbles. Ultimately, this can improve the removal rate of free air in the mortar, reduce the problems of hollowing and cracking of the insulation layer caused by residual bubbles in the subsequent spraying process, and indirectly ensure the bonding strength and insulation performance of the mortar.

[0065] Please see Figures 9-12The pressurized spray pipe 4 is equipped with a dynamic foaming component 8 for secondary treatment of mortar. The dynamic foaming component 8 includes a jacket ring 81, an outer gear disc 82, and a flow channel pipe 83. The jacket ring 81 is fixedly installed on the inner wall of the pressurized spray pipe 4, and the outer gear disc 82 is rotatably installed in the middle of the jacket ring 81. Four flow channel pipes 83 are equidistantly installed in a ring on the outer gear disc 82, and a wave cavity 831 is opened in the middle of the flow channel pipe 83. A drive box is installed at the bottom of the pressurized spray pipe 4, and a micro motor is installed in the drive box. A gear 84 is fixedly installed at the output end of the micro motor. The gear 84 is located at the slot at the bottom of the pressurized spray pipe 4, and the gear 84 meshes with the outer gear disc 82.

[0066] In the preferred embodiment of this solution, by setting a clamping ring 81, an outer gear disc 82, and a flow channel pipe 83, the clamping ring 81 is fixed to the inner wall of the pressurized spray pipe 4. The rigid support of the clamping ring 81 can limit the radial displacement of the outer gear disc 82, ensuring its stable rotation around the axis of the pressurized spray pipe 4, and providing a reference for the precise alignment of the flow channel pipe 83 and the magnetic nozzle 92.

[0067] Secondly, when the micro motor drives the outer gear disk 82 to rotate through the gear 84, it will drive the four flow channel pipes 83 to revolve around the axis of the pressurized spray pipe 4. During the revolution, the rotation angle of the outer gear disk 82 is controlled so that the port of each flow channel pipe 83 is simultaneously aligned with the nozzle of the corresponding magnetic nozzle 92. This avoids the water spraying from failing to enter the interior of the flow channel pipe 83 due to misalignment (such as water overflowing due to port misalignment). This ensures that the inner wall of the flow channel pipe 83 can be thoroughly washed by high-pressure water, thus solving the problem of mortar residue solidification.

[0068] Please see Figure 8 and Figure 9 The discharge port of the spiral conveyor pipe 2 is equipped with a sealing circular plate 21. Multiple magnetic suction pipes 22 are installed in a ring at equal intervals on the sealing circular plate 21. The magnetic suction pipes 22 are magnetically sealed to the inlet end of the flow channel pipe 83.

[0069] Furthermore, a spiral pressurizing blade 41 is provided inside the pressurizing spray pipe 4. The main shaft of the spiral pressurizing blade 41 is coaxially and fixedly connected to the main shaft of the spiral conveying pipe 2 through a coupling, and both pass through the middle of the sealing circular plate 21.

[0070] In the preferred embodiment of this scheme, the sealing circular plate 21 is fixed to the discharge port of the spiral conveying pipe 2. On the one hand, it provides a planar positioning reference for the equidistantly annularly installed magnetic suction pipes 22, ensuring that the multiple magnetic suction pipes 22 are evenly distributed. On the other hand, the main shaft through hole reserved in the middle provides coaxial synchronous driving power for the main shaft of the spiral conveying pipe 2 and the main shaft of the spiral pressurizing blade 41.

[0071] By setting up a sealing circular plate 21 and a magnetic suction pipe 22, the magnetic suction pipe 22 and the inlet end of the flow channel pipe 83 are equipped with both magnetic attraction and sealing. On the one hand, the magnetic connection does not require bolt fastening, and the docking can be completed simply by aligning and adsorbing during disassembly and assembly, which greatly shortens the switching time of the flow channel pipe 83. On the other hand, when the magnetic attraction is applied, the interface between the magnetic suction pipe 22 and the flow channel pipe 83 is sealed with a sealing strip or rubber ring, which can prevent high-pressure mortar from leaking from the interface and prevent air from seeping in from the interface, thus ensuring the sealing and pressure stability of the mortar delivery.

[0072] By setting up spiral pressure blades 41 to receive the mortar discharged from the flow channel pipe 83, the rotating blades will create a gradient pressure on the mortar that increases along the conveying direction. On the one hand, the increased pressure can further compress the tiny air bubbles remaining in the mortar and enhance the defoaming effect in the early stage. On the other hand, the mortar under high pressure can enter the flow channel pipe 83 at a stable flow rate and has sufficient spraying pressure during final spraying (to ensure the adhesion and flatness of the mortar on the wall surface), avoiding problems such as uneven spraying and sagging caused by insufficient pressure.

[0073] Please see Figure 3 , Figures 8-12 The pressurized spray pipe 4 is equipped with a spray washing assembly 9, which includes: an annular pipe 91, which is fixedly installed on the outer wall of the pressurized spray pipe 4; multiple magnetically connected spray pipes 92, which are all connected to the annular pipe 91 through extension pipes, and the nozzles of the magnetically connected spray pipes 92 are set facing the port of the flow channel pipe 83; and a water supply pipe 93, one end of which is connected to the water inlet end of the annular pipe 91, and the other end is connected to the water supply source set on the frame 1.

[0074] In a preferred embodiment of this solution, an annular pipe 91, a magnetic nozzle 92, and a water supply pipe 93 are provided. The annular pipe 91 is fixed to the outer wall of the pressurized spray pipe 4. Its annular structure allows the high-pressure water supplied by the water source to be evenly distributed along the circumference of the pipe wall. The annular pipe 91 can synchronously distribute the water flow to multiple magnetic nozzles 92, ensuring that each flow channel pipe 83 can obtain a stable and sufficient flushing force.

[0075] Secondly, the nozzle of the magnetic nozzle 92 is precisely oriented towards the port of the flow channel pipe 83. The corrugated cavity 831 on the inner wall of the flow channel pipe 83 is a major area for mortar residue (the misaligned gaps in the corrugated cavity 831 are prone to mortar jamming and need to be cleaned in time after operation). The nozzle oriented towards the port allows the high-pressure water flow to directly rush into the interior along the axial direction of the flow channel pipe 83. The water flow can flow along the bulges and depressions of the corrugated cavity 831 to wash away the residual mortar in the gaps, avoiding the problems of surface washing and internal residue, and ensuring that there is no solidified mortar residue on the inner wall of the flow channel pipe 83.

[0076] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wall mortar spraying device for building construction, comprising a frame (1), a spiral conveying pipe (2) mounted on the frame (1), and a feed hopper (3) mounted on the top of the spiral conveying pipe (2), wherein a pressurized spraying pipe (4) is installed at the discharge port of the spiral conveying pipe (2), and a filter material component for pre-treating mortar is installed on the top of the feed hopper (3); characterized in that: The feed bin (3) is equipped with a stepped discharge assembly (5), which is connected to an air extraction assembly (6) installed on the outer wall of the feed bin (3). The stepped feeding assembly (5) includes: A conical ring pipe (51) is fixed to the inner wall of the feed hopper (3) and an outer ring clamp plate (52) is used to connect the conical ring pipe (51) to the air extraction assembly (6). A rotatable conical sleeve (53) is provided in the middle of the conical ring pipe (51). A multi-stage stirring blade (54) is fixedly installed on the outer wall of the conical sleeve (53) in a stepped manner from top to bottom. The multi-stage stirring blades (54) and the air extraction component (6) work together to break up air bubbles mechanically and extract gas at the same time, thereby achieving mortar densification and ensuring the quality of wall construction. The pressurized spray pipe (4) is equipped with a dynamic foaming component (8) for secondary treatment of mortar. The dynamic foaming component (8) includes a jacket ring (81), an outer gear disc (82), and a flow channel pipe (83). The jacket ring (81) is fixedly installed on the inner wall of the pressurized spray pipe (4). The outer gear disc (82) is rotatably installed in the middle of the jacket ring (81). Four flow channel pipes (83) are equidistantly arranged in a ring on the outer gear disc (82). A wave cavity (831) is opened in the middle of the flow channel pipe (83). A drive box is installed at the bottom of the pressurized spray pipe (4). A micro motor is installed in the drive box. A gear (84) is fixedly installed at the output end of the micro motor. The gear (84) is located at the slot at the bottom of the pressurized spray pipe (4), and the gear (84) meshes with the outer gear disc (82). The discharge port of the spiral conveying pipe (2) is equipped with a sealing circular plate (21), and multiple magnetic suction pipes (22) are installed in a ring at equal intervals on the sealing circular plate (21). The magnetic suction pipes (22) are magnetically sealed to the inlet end of the flow channel pipe (83).

2. The wall mortar spraying equipment for building construction as described in claim 1, characterized in that, The conical sleeve (53) is equipped with an assembly (7) that provides drive for the multi-stage stirring blades (54) at the middle, the assembly (7) including a cross base column (71) and a heating element (72). A cross-shaped base column (71) is installed at the lower part of the tapered annular tube (51), and a tapered sleeve (53) is rotatably installed on the outside of the cross-shaped base column (71). A drive motor is installed in the recessed part at the top of the cross base column (71), and the output end of the drive motor is fixedly connected to the bottom of the conical sleeve (53). The surfaces of the conical sleeve (53) and the multi-stage stirring blades (54) are covered with an anti-stick coating; The heating element (72) includes a first heating element (721) embedded in the wall of the conical sleeve (53) and a second heating element (722) embedded in the blade of the multi-stage stirring impeller (54).

3. The wall mortar spraying equipment for building construction as described in claim 2, characterized in that, The assembly assembly (7) also includes a control unit, which is mounted on the frame (1) and electrically connected to the drive motor and the heating element (72) respectively; The control unit is configured to: determine the mortar viscosity by monitoring the load current of the drive motor, and control the power of the heating element (72) accordingly; When the load current is higher than the set threshold, the heating power is increased to reduce the mortar viscosity; When the load current is lower than the set threshold, reduce or turn off the heating power.

4. The wall mortar spraying equipment for building construction as described in claim 1, characterized in that, The air extraction assembly (6) includes: Assembly rack (61) is installed on the side wall of feed hopper (3); An air pump (62) is mounted on an assembly frame (61); The air pump (62) has its air intake port connected to one end of the connecting pipe (63), and the other end of the connecting pipe (63) passes through the outer wall of the feed bin (3) and is connected to the exhaust end of the diversion pipe (64) located in the feed bin (3). Both air intake ends of the diversion pipe (64) are connected to inclined air intake rings (65). The inclined suction ring (65) is fixedly installed on the conical ring tube (51) by the outer ring clamp (52), and the suction port of the inclined suction ring (65) is inclined downward toward the internal stirring area of ​​the conical ring tube (51).

5. The wall mortar spraying equipment for building construction as described in claim 1, characterized in that, The pressurized spray pipe (4) is provided with a spiral pressurizing blade (41). The main shaft of the spiral pressurizing blade (41) is coaxially and fixedly connected to the main shaft of the spiral conveying pipe (2) through a coupling, and both pass through the middle of the sealing circular plate (21).

6. The wall mortar spraying equipment for building construction as described in claim 5, characterized in that, The pressurized spray pipe (4) is equipped with a spray washing assembly (9), which includes: The annular tube (91) is fixedly installed on the outer wall of the pressurized spray pipe (4); Multiple magnetic nozzles (92) are interconnected with annular pipe (91) through extension pipes, and the nozzles of the magnetic nozzles (92) are set facing the port of the flow channel pipe (83). The water supply pipe (93) is connected at one end to the inlet end of the ring pipe (91) and at the other end to the water supply source set on the frame (1).

7. The wall mortar spraying equipment for building construction as described in claim 1, characterized in that, The filter media component includes a filter screen box installed on the top of the feed hopper (3), a vibration motor for driving the filter screen box to vibrate, and an elastic support member connected between the filter screen box and the feed hopper (3) for filtering the added mortar and preventing clumping and blockage.

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