An indoor putty spraying machine with a backwashing structure

Abstract

This utility model belongs to the technical field of interior decoration equipment and discloses an indoor putty spraying machine with a backwashing structure. It solves the problems of easy pipe blockage, uneven putty mixing, and inconvenient backwashing operation in existing putty spraying machines. By setting up a backwashing device, the supply and discharge pipes can be quickly and effectively flushed, removing residual putty from the pipes, preventing blockage, extending the service life of the equipment, and reducing equipment maintenance time and costs. The stirring mechanism in the storage tank adopts a combined upper and lower stirring method. The blade assembly, spiral blades, and stirring auxiliary blades work together to fully stir the putty, preventing sedimentation and stratification, ensuring uniform mixing, thereby improving the putty spraying quality and making the putty spraying effect on walls and ceilings smoother and more uniform. Integrating stirring, spraying, and backwashing functions into one unit reduces the equipment's footprint and improves its practicality and versatility.

Description

Technical Field

[0001] This utility model belongs to the technical field of interior decoration equipment, specifically an indoor putty spraying machine with a backwashing structure. Background Technology

[0002] In interior decoration, putty spraying machines are widely used for applying putty to walls and ceilings. Traditional putty spraying machines typically include basic components such as a storage tank, a power pump, and a spray gun. The power pump delivers the putty from the storage tank to the spray gun for spraying.

[0003] However, some problems exist in actual use of putty spraying machines. Firstly, putty residue in the supply and discharge pipes easily dries and clogs the pipes after prolonged use, affecting the normal operation of the spraying machine. Furthermore, the cleaning process is cumbersome and consumes a lot of time and manpower. Secondly, putty in the storage tank is prone to sedimentation and stratification, leading to uneven mixing, affecting spraying quality, and also easily causing blockages. In addition, existing putty spraying machines are not convenient or efficient enough for backflushing operations, failing to quickly and effectively clean the pipes and affecting construction progress.

[0004] Therefore, there is an urgent need for a new type of putty spraying machine that can solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an indoor putty spraying machine with a backwashing structure. By setting up a backwashing device and a stirring mechanism, it solves the problems of easy pipe blockage, uneven putty mixing, and inconvenient backwashing operation in existing putty spraying machines, thereby improving the efficiency and spraying quality of the spraying machine and reducing equipment maintenance costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an indoor putty spraying machine with a backwashing structure, comprising a spraying machine body, wherein a storage tank, a power pump and a spray gun are provided on the spraying machine body, the storage tank is connected to the inlet of the power pump through a feeding pipe, the outlet of the power pump is connected to the spray gun through an outlet pipe, and further comprising a backwashing device provided on the spraying machine body;

[0007] The backwashing device includes a water tank, a backwashing pump, and a reversing valve. The water tank is connected to the inlet of the backwashing pump through an inlet pipe. The outlet of the backwashing pump is connected to the first port of the reversing valve. The second port of the reversing valve is connected to the end of the discharge pipe near the spray gun through a backwashing pipe. The third port of the reversing valve is connected to the end of the supply pipe near the power pump.

[0008] The spray gun is equipped with a quick connector, and the end of the backwash pipe away from the reversing valve is equipped with a connector that is compatible with the quick connector.

[0009] The storage tank is equipped with a stirring mechanism.

[0010] Preferably, both the feeding pipe and the discharging pipe are equipped with valves.

[0011] Preferably, a liquid level sensor is installed inside the water tank, and an alarm electrically connected to the liquid level sensor is installed on the main body of the spraying machine.

[0012] Preferably, the backwash pump is a variable frequency pump, and the pressure and flow rate of the backwash water can be controlled by adjusting the frequency of the backwash pump.

[0013] Preferably, the reversing valve is an electromagnetic reversing valve, which can quickly switch the interface connection state via electronic control.

[0014] Preferably, the stirring mechanism includes a servo motor installed at the bottom of the storage tank, the output end of the servo motor being connected to a blade assembly located on the bottom surface inside the storage tank, a stirring motor being installed on the top surface of the storage tank, the output end of the stirring motor being connected to one end of a stirring rod located inside the storage tank, and a spiral blade being installed on the outer side of the stirring rod via a connecting rod.

[0015] Preferably, the surface of the stirring rod is fitted with two stirring blades by a fixing rod. The stirring blades are in contact with the inner wall of the storage tank. Both the stirring blades and the spiral blades have multiple through holes on their surfaces.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] High-efficiency backwashing function: By setting up a backwashing device, this invention can quickly and effectively flush the supply and discharge pipes, remove residual putty from the pipes, prevent pipe blockage, extend equipment service life, and reduce equipment maintenance time and costs. The stirring mechanism in the storage tank adopts an upper and lower combined stirring method. The blade assembly, spiral blades and stirring auxiliary blades work together to fully stir the putty, prevent putty sedimentation and stratification, and ensure uniform putty mixing, thereby improving the putty spraying quality and making the putty spraying effect on walls and ceilings smoother and more uniform.

[0018] Convenient operation design: The quick connection between the spray gun and the backwash pipe, along with the electrically controlled rapid switching function of the solenoid directional valve, makes backwashing operations more convenient and efficient. The variable frequency pump can adjust the pressure and flow rate of the backwash water to adapt to different cleaning needs. The liquid level sensor and alarm settings promptly remind operators to replenish the water tank, ensuring smooth backwashing operations.

[0019] Multifunctional integration: It integrates mixing, spraying and backwashing functions into one unit, reducing the equipment's footprint, improving its practicality and versatility, and meeting the diverse needs of indoor putty spraying construction. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 In this utility model Figure 1 Enlarged detail view at point A;

[0022] Figure 3 This is a side view of the overall structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the stirring mechanism in this utility model.

[0024] In the diagram: 1. Main body of the spraying machine; 2. Storage tank; 3. Power pump; 4. Spray gun; 5. Feed pipe; 6. Discharge pipe; 7. Water tank; 8. Backwash pump; 9. Reversing valve; 10. Water inlet pipe; 11. Backwash pipe; 12. Valve; 13. Liquid level sensor; 14. Alarm; 15. Servo motor; 16. Blade assembly; 17. Stirring rod; 18. Stirring motor; 19. Spiral blade; 20. Auxiliary stirring blade. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 4 As shown, this utility model provides an indoor putty spraying machine with a backwashing structure, including a spraying machine body 1, a storage tank 2, a power pump 3 and a spray gun 4 provided on the spraying machine body 1, the storage tank 2 is connected to the inlet of the power pump 3 through a feeding pipe 5, the outlet of the power pump 3 is connected to the spray gun 4 through a discharge pipe 6, and also includes a backwashing device provided on the spraying machine body 1;

[0027] The backwashing device includes a water tank 7, a backwashing pump 8, and a reversing valve 9. The water tank 7 is connected to the inlet of the backwashing pump 8 through an inlet pipe 10. The outlet of the backwashing pump 8 is connected to the first port of the reversing valve 9. The second port of the reversing valve 9 is connected to the end of the discharge pipe 6 near the spray gun 4 through a backwashing pipe 11. The third port of the reversing valve 9 is connected to the end of the supply pipe 5 near the power pump 3.

[0028] The spray gun 4 is equipped with a quick connector, and the backwash pipe 11 is equipped with a connector that is compatible with the quick connector at the end away from the reversing valve 9.

[0029] The storage tank 2 is equipped with a stirring mechanism.

[0030] In actual use, when putty spraying is required, open valve 12 on the supply pipe 5 and the discharge pipe 6, put the putty into the storage tank 2, start the power pump 3, and the putty passes through the supply pipe 5 and the discharge pipe 6 in sequence under the action of the power pump 3, and finally sprays out from the spray gun 4 for spraying. When the spraying machine is found to be blocked or needs to be cleaned after the spraying operation is completed, close valve 12, connect the connector of the backwash pipe 11 to the quick connector of the spray gun 4, start the backwash pump 8, and control the solenoid reversing valve 9 so that the water output by the backwash pump 8 backwashes the supply pipe 5, the discharge pipe 6 and the spray gun 4 according to the set path. This solves the problem of easy blockage and inconvenient cleaning of existing putty spraying machines, and greatly improves the working efficiency and service life of the spraying machine.

[0031] It should be noted that valves 12 are installed on both the supply pipe 5 and the discharge pipe 6 to facilitate the closure of the supply pipe 5 and the discharge pipe 6 during backwashing operations, preventing putty from entering the backwashing system. This also facilitates control of the putty spraying operation. During the flushing process, the frequency of the variable frequency pump can be adjusted according to the blockage situation to achieve the best backwashing effect. The stirring mechanism in the storage tank 2 adopts an upper and lower combined stirring method. The blade assembly 16, the spiral blade 19, and the stirring auxiliary blade 20 work together to fully stir the putty, prevent putty sedimentation and stratification, and ensure that the putty is mixed evenly, thereby improving the putty spraying quality and making the putty spraying effect on the wall and ceiling more smooth and uniform, avoiding blockage of the equipment.

[0032] like Figures 1 to 4As shown, the stirring mechanism includes a servo motor 15 installed at the bottom of the storage tank 2. The output end of the servo motor 15 is connected to a blade assembly 16 located on the bottom surface inside the storage tank 2. A stirring motor 18 is installed on the top surface of the storage tank 2. The output end of the stirring motor 18 is connected to one end of a stirring rod 17 located inside the storage tank 2. A spiral blade 19 is installed on the outer side of the stirring rod 17 via a connecting rod. Two auxiliary stirring blades 20 are installed on the surface of the stirring rod 17 via a fixing rod. The auxiliary stirring blades 20 are in contact with the inner wall of the storage tank 2. The auxiliary stirring blades 20 and the spiral blades 19... Multiple through holes are provided on the surface. When the mixing mechanism is working, the blade assembly 16 at the bottom performs preliminary mixing and crushing of the putty. The mixing motor 18 at the top drives the mixing rod 17, the spiral blade 19, and the mixing auxiliary blade 20 to rotate. The spiral blade 19 lifts the putty upward and mixes it. The mixing auxiliary blade 20 adheres to the inner wall of the storage tank, scrapes off the putty attached to the inner wall, and pushes it downward to mix and crush it. At the same time, the through hole design helps the putty to be mixed more evenly, effectively preventing the putty from settling or separating, ensuring the quality of the putty spraying, and avoiding blockage caused by foreign particles inside the putty.

[0033] A liquid level sensor 13 is installed inside the water tank 7, and an alarm 14 electrically connected to the liquid level sensor 13 is installed on the main body 1 of the spraying machine. When the water level in the water tank 7 is lower than the set value, the liquid level sensor 13 transmits a signal to the alarm 14, and the alarm 14 sounds an alarm to remind the operator to replenish the water in the water tank 7 in time to ensure the normal operation of the backwashing operation.

[0034] The backwash pump 8 is a variable frequency pump. By adjusting the frequency of the backwash pump 8, the pressure and flow rate of the backwash water can be controlled. The pressure and flow rate of the backwash water can be flexibly adjusted according to different pipe blockage conditions and cleaning needs, which can ensure the cleaning effect while avoiding damage to the pipes due to excessive pressure.

[0035] Both the feeding pipe 5 and the discharging pipe 6 are equipped with valves 12. By controlling the opening and closing of valves 12, the conveying of putty can be easily controlled. When performing backwashing operations or equipment maintenance, closing valves 12 can prevent putty leakage and water from entering the storage tank 2.

[0036] The reversing valve 9 is a solenoid reversing valve. The solenoid reversing valve can quickly switch the interface connection status through electrical control, which is simple and quick to operate. It can accurately control the flow direction of backwash water and improve the efficiency of backwashing operation.

[0037] Working principle and process: During normal putty spraying, the mixing mechanism is activated. The servo motor 15 at the bottom drives the blade assembly 16 to initially mix and break up the putty. The mixing motor 18 at the top drives the mixing rod 17, spiral blade 19, and mixing auxiliary blade 20 to rotate. The spiral blade 19 lifts and mixes the putty upwards, while the mixing auxiliary blade 20 adheres to the inner wall of the storage tank 2, scraping off and mixing the putty adhering to the inner wall to ensure thorough and uniform mixing and prevent sedimentation and stratification. Check the valves on the supply pipe 5 and the discharge pipe 6 to ensure that valve 12 is closed to prevent putty leakage. Open valve 12 on the supply pipe 5 and the discharge pipe 6, and start the power pump 3. The power pump 3 delivers the uniformly mixed putty in the storage tank 2 to the discharge pipe through the supply pipe 5, and finally sprays it onto the interior walls, ceilings, and other areas through the spray gun. Operators can adjust the operating parameters of the power pump according to actual spraying needs to control the spraying flow and pressure of the putty to achieve the ideal spraying effect. During the spraying operation, the stirring mechanism works continuously to maintain the uniformity of the putty in the storage tank 2 and ensure the stable quality of the putty throughout the entire spraying process. After the spraying operation is completed, close valves 12 on the supply pipe 5 and the discharge pipe 6 to prevent water from entering the storage tank 2 or putty leakage during backwashing. Connect the connector of the backwash pipe 11 away from the reversing valve 9 to the quick connector on the spray gun, start the backwash pump 8, and switch the interface connection status of the solenoid reversing valve 9 electronically as needed to clean the required pipes. To clean the discharge pipe 6, connect the first and second ports of the reversing valve 9. Water flows from the water tank 7 through the backwash pump 8 and the reversing valve 9 into the backwash pipe to flush the discharge pipe and remove any residual putty. To clean the supply pipe 5, connect the first and third ports of the reversing valve 9, and flush the supply pipe 5 with water. Since the backwash pump 8 is a variable frequency pump, its frequency can be adjusted according to the pipe blockage and cleaning requirements to control the pressure and flow rate of the backwash water, achieving the best cleaning effect. This system integrates mixing, spraying, and backwashing functions, reducing the equipment's footprint and improving its practicality and versatility, thus meeting the diverse needs of indoor putty spraying applications.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, those skilled in the art can make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and basis of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Therefore, the embodiments of the present invention are merely illustrative examples and do not constitute a limitation on the present invention in any way.

Claims

1. An indoor putty spraying machine with a backwashing structure, comprising a spraying machine body (1), characterized in that: The main body (1) of the spraying machine is provided with a storage tank (2), a power pump (3) and a spray gun (4). The storage tank (2) is connected to the inlet of the power pump (3) through a feeding pipe (5). The outlet of the power pump (3) is connected to the spray gun (4) through a discharge pipe (6). It also includes a backwashing device provided on the main body (1) of the spraying machine. The backwashing device includes a water tank (7), a backwashing pump (8), and a reversing valve (9). The water tank (7) is connected to the inlet of the backwashing pump (8) through an inlet pipe (10). The outlet of the backwashing pump (8) is connected to the first port of the reversing valve (9). The second port of the reversing valve (9) is connected to the end of the discharge pipe (6) near the spray gun (4) through a backwashing pipe (11). The third port of the reversing valve (9) is connected to the end of the supply pipe (5) near the power pump (3). The spray gun (4) is equipped with a quick connector, and the backwash pipe (11) is equipped with a connector adapted to the quick connector at the end away from the reversing valve (9); The storage tank (2) is equipped with a stirring mechanism inside.

2. The indoor putty spraying machine with a backwashing structure according to claim 1, characterized in that: The stirring mechanism includes a servo motor (15) installed at the bottom of the storage tank (2). The output end of the servo motor (15) is connected to a blade assembly (16) located on the bottom surface inside the storage tank (2). A stirring motor (18) is installed on the top surface of the storage tank (2). The output end of the stirring motor (18) is connected to one end of a stirring rod (17) located inside the storage tank (2). Spiral blades (19) are installed on the outside of the stirring rod (17) via a connecting rod.

3. The indoor putty spraying machine with a backwashing structure according to claim 2, characterized in that: Two auxiliary stirring blades (20) are mounted on the surface of the stirring rod (17) by a fixing rod. The auxiliary stirring blades (20) are in contact with the inner wall of the storage tank (2). Multiple through holes are opened on the surface of the auxiliary stirring blades (20) and the spiral blades (19).

4. The indoor putty spraying machine with a backwashing structure according to any one of claims 1-3, characterized in that: The backwash pump (8) is a variable frequency pump. By adjusting the frequency of the backwash pump (8), the pressure and flow rate of the backwash water can be controlled.

5. The indoor putty spraying machine with a backwashing structure according to any one of claims 1-3, characterized in that: A liquid level sensor (13) is installed inside the water tank (7), and an alarm (14) electrically connected to the liquid level sensor (13) is installed on the main body (1) of the spraying machine.

6. The indoor putty spraying machine with a backwashing structure according to claim 1, characterized in that: Valves (12) are installed on both the feeding pipe (5) and the discharging pipe (6).

7. The indoor putty spraying machine with a backwashing structure according to any one of claims 1-3, characterized in that: The reversing valve (9) is an electromagnetic reversing valve, which can quickly switch the interface connection status through electronic control.

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