Full-pneumatic dry ice cleaning machine

Abstract

The utility model relates to the technical field of dry ice cleaning machines, and discloses a full-pneumatic dry ice cleaning machine which comprises a cleaning machine shell, a transfer box and a spray gun assembly, a control screen is fixedly installed on the rear side of the cleaning machine shell, universal wheels are rotatably installed at the bottom of the cleaning machine shell, and a fixing rod is fixedly installed at the bottom of the cleaning machine shell. According to the full-pneumatic dry ice cleaning machine, the spray gun assembly is used for mixed spraying of gas and dry ice, it is ensured that the spray gun is stable, the reasonable structural design enables the dry ice to be efficiently and stably sprayed to the surface to be cleaned, the cleaning effect is improved, during installation, bolts are inserted into the installation holes to penetrate through the other spray gun shell, rapid installation can be achieved, later maintenance is facilitated, and the maintenance efficiency is improved. A gas outlet of the cleaning machine is of a conical structure, according to the fluid mechanics principle, the flow speed is increased when gas and dry ice pass through, the jet kinetic energy and impact force are improved, dry ice conveying is accelerated through conveying of an electromagnetic valve and various pipelines and based on the Venturi tube principle, gas and dry ice can be fully mixed conveniently, and the mixing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dry ice cleaning machines, in particular to a fully pneumatic dry ice cleaning machine. Background Art

[0002] As a type of cleaning machine, the dry ice cleaning machine's cleaning system uses high-pressure air to spray dry ice pellets onto the work surface to be cleaned. Due to the physical reaction of temperature difference, different substances will separate at different shrinkage rates. When the dry ice pellets with a temperature of -78 degrees Celsius come into contact with the dirt surface, a brittle explosion phenomenon will occur, causing the dirt to shrink and loosen. Subsequently, the dry ice pellets instantly vaporize and expand 800 times, generating a strong peeling force, causing the dirt to fall off the surface quickly and thoroughly, thereby achieving a fast, efficient, safe and energy-saving cleaning effect.

[0003] Chinese utility model patent publication number CN214108141U discloses a small pneumatic dry ice cleaning machine. This cleaning machine utilizes an adjustment mechanism, which allows users to rotate two hand wheels to rotate two threaded rods, thereby driving two movable blocks, two connecting blocks, and an armrest to move up and down, allowing the armrest height to be adjusted according to the user's height. However, this small pneumatic dry ice cleaning machine is only designed with a handle height adjustment function and does not optimize the internal piping structure. This can easily lead to a slow flow rate of gas and dry ice and low mixing efficiency. In addition, the cleaning machine also lacks a spray gun structure, which is not convenient for subsequent maintenance and replacement, nor is it conducive to quickly spraying dry ice onto the surface to be cleaned, and cannot fully improve the cleaning effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a fully pneumatic dry ice cleaning machine, which can effectively solve the problem in the prior art that the internal pipeline structure is not designed, when the gas and dry ice are mixed, the flow rate is likely to be slow, resulting in low mixing efficiency, and the spray gun structure is not designed, which is not only inconvenient for subsequent maintenance and replacement, but also makes it difficult to quickly spray the dry ice onto the surface to be cleaned and improve the cleaning effect.

[0005] The technical solution adopted by the present invention is: a fully pneumatic dry ice cleaning machine, including a cleaning machine shell, a transfer box and a spray gun assembly. A control panel is fixedly installed on the rear side of the cleaning machine shell, a universal wheel is rotatably installed on the bottom of the cleaning machine shell, a fixing rod is fixedly installed on the bottom of the cleaning machine shell, a rotating rod is rotatably installed on the outside of the fixed rod, a roller is fixedly installed on the outside of the rotating rod, a handle is fixedly installed on the top of the cleaning machine shell, a distribution hopper is fixedly installed inside the cleaning machine shell, a storage hopper is fixedly installed on the other side of the distribution hopper, a transfer box is fixedly installed on the bottom of the storage hopper, a discharge pipe is fixedly installed on the bottom of the transfer box, a solenoid valve 1 is provided at the bottom of the discharge pipe, a gas storage assembly is provided at the other end of the solenoid valve 1, and a connecting pipe 2 and a flange are provided on the outside of the gas storage assembly.

[0006] Preferably, the gas storage assembly includes a fixed seat, a limiting ring is provided on the top of the fixed seat, a gas storage tank is provided on the top of the fixed seat, an electromagnetic valve 2 is provided at the output end of the gas storage tank, an air outlet pipe 1 is provided at the other end of the air outlet pipe 2, an air outlet pipe 2 and a connecting pipe 1 are provided at the other end of the air outlet pipe 1, the connecting pipe 1 and the connecting pipe 2 are communicated with each other, the fixed seat is adapted to the gas storage tank through the limiting ring, and the inlet diameter of the connecting pipe 1 is smaller than the outlet diameter.

[0007] Through the above technical solution and the design of connecting pipe 1, when the sprayed dry ice needs to be pressurized, it is transported through solenoid valve 2, air outlet pipe 1, air outlet pipe 2, connecting pipe 1, and connecting pipe 2. According to the Venturi tube principle, the transportation of dry ice can be accelerated, and the solenoid valve 1 can accurately control the discharge of dry ice. The structural design of the gas storage component ensures a stable supply and reasonable transportation of gas, providing a stable power basis for the spraying of dry ice.

[0008] Preferably, the spray gun assembly includes a spray gun housing, a mounting hole is provided on the outside of the spray gun housing, an air outlet is provided on the inside of the spray gun housing, a bolt is threadedly connected to the inside of the mounting hole, a connecting frame is provided on the top of the spray gun housing, and the spray gun housing is provided with two identical ones with the same structure, and the bolt passes through the same two spray gun housings and extends to the outside thereof.

[0009] Through the above technical solution, the gas and dry ice are mixed and sprayed in the spray gun assembly, which ensures the stability of the spray gun. The stable connection and reasonable structural design of the spray gun assembly enable the dry ice to be sprayed efficiently and stably onto the surface to be cleaned, thereby improving the cleaning effect.

[0010] Preferably, the bolts and mounting holes are provided in equal numbers, and the bolts and mounting holes are distributed at equal intervals.

[0011] Through the above technical solution, during installation, the bolt can be inserted into the mounting hole and then passed through the other spray gun housing, so that the two spray gun housings can be quickly installed, which is convenient for later maintenance.

[0012] Preferably, the cross section of the air outlet is a "conical" structure, the connection frame is threadedly connected to the nozzle and the air outlet cover, and the nozzle and the air outlet cover are an integrated structure.

[0013] Through the above technical solution, the cross-sectional "conical" structure of the air outlet is designed. When the gas and dry ice pass through, the cross-sectional area gradually becomes smaller. According to the principles of fluid mechanics, the flow rate of the gas and dry ice will increase, thereby increasing the kinetic energy and impact force of the jet, which is more conducive to removing dirt from the surface to be cleaned.

[0014] Preferably, a feed hopper is fixedly mounted on the top of the cleaning machine housing, a top cover is fixedly mounted on the top of the feed hopper, and a sealing ring is fixedly mounted at the connection between the feed hopper and the cleaning machine housing, and the sealing ring is a rubber sealing ring.

[0015] Through the above technical solution, through the design of the feed hopper, the crushed dry ice can be fed from the feed hopper into the interior of the cleaning machine housing. The top cover on the top of the feed hopper can prevent impurities from entering. The rubber sealing ring at the connection between the feed hopper and the cleaning machine housing ensures the sealing and prevents the leakage of dry ice sublimation gas, which can reduce the loss of dry ice and ensure that the dry ice can smoothly enter the interior of the cleaning machine for subsequent processing.

[0016] Preferably, the transfer box, the discharge pipe, the solenoid valve and the gas storage component are connected, and the inner wall of the transfer box is designed to be inclined.

[0017] Through the above technical solution, the crushed dry ice can be dropped to the lower component through the transfer box, the discharge pipe, the solenoid valve and the gas storage component. Then, the inclined design of the inner wall of the transfer box can facilitate the discharge of the crushed dry ice to avoid blockage.

[0018] Compared with the existing technology, the present invention provides a fully pneumatic dry ice cleaning machine with the following beneficial effects:

[0019] This fully pneumatic dry ice cleaning machine uses a spray gun assembly to deliver a mixed spray of gas and dry ice, ensuring the stability of the gun. The gun assembly's secure connection and rational structural design allow for efficient and stable spraying of dry ice onto the surface being cleaned, significantly improving cleaning results. During installation, a bolt is inserted into the mounting hole and then passed through the other gun housing, allowing for quick installation of the two gun housings, greatly facilitating subsequent maintenance.

[0020] The air outlet of this fully pneumatic dry ice blasting machine features a conical cross-section. As the cross-sectional area of ​​the gas and dry ice gradually decreases, the flow rate increases accordingly, according to the principles of fluid mechanics, thereby increasing the kinetic energy and impact force of the jet. This is accomplished through solenoid valve 2, outlet pipes 1 and 2, and connecting pipes 1 and 2. Based on the Venturi principle, this accelerates the delivery of dry ice, facilitates thorough mixing of the gas and dry ice, and effectively improves mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the installation structure of the distribution hopper and storage hopper of the utility model;

[0024] Figure 4 This is a schematic diagram of the installation structure of the solenoid valve and the gas storage component of the utility model;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 6 This is a schematic diagram of the disassembled structure of the spray gun assembly of the utility model.

[0027] Among them: 1. Cleaning machine housing; 2. Control panel; 3. Universal wheel; 4. Fixed rod; 5. Rotating rod; 6. Roller; 7. Handle; 8. Feed hopper; 9. Top cover; 10. Sealing ring; 11. Distribution hopper; 12. Storage hopper; 13. Transfer box; 14. Discharge pipe; 15. Solenoid valve 1; 16. Gas storage assembly; 1601. Fixed seat; 1602. Limiting ring; 1603. Gas storage tank; 1604. Solenoid valve 2; 1605. Outlet pipe 1; 1606. Outlet pipe 2; 1607. Connecting pipe 1; 17. Connecting pipe 2; 18. Flange; 19. Spray gun assembly; 1901. Spray gun housing; 1902. Mounting hole; 1903. Outlet; 1904. Bolt; 1905. Connecting frame; 1906. Nozzle; 1907. Outlet cover. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1: Figure 1-6 As shown, the utility model provides a fully pneumatic dry ice cleaning machine, including a cleaning machine housing 1, a transfer box 13 and a spray gun assembly 19. A control panel 2 is fixedly installed on the rear side of the cleaning machine housing 1, a universal wheel 3 is rotatably installed on the bottom of the cleaning machine housing 1, a fixed rod 4 is fixedly installed on the bottom of the cleaning machine housing 1, a rotating rod 5 is rotatably installed on the outside of the fixed rod 4, a roller 6 is fixedly installed on the outside of the rotating rod 5, a handle 7 is fixedly installed on the top of the cleaning machine housing 1, a distribution hopper 11 is fixedly installed inside the cleaning machine housing 1, a storage hopper 12 is fixedly installed on the other side of the distribution hopper 11, a transfer box 13 is fixedly installed on the bottom of the storage hopper 12, a discharge pipe 14 is fixedly installed on the bottom of the transfer box 13, a solenoid valve 15 is provided at the bottom of the discharge pipe 14, a gas storage assembly 16 is provided at the other end of the solenoid valve 15, and a connecting pipe 2 17 and a flange 18 are provided on the outside of the gas storage assembly 16.

[0030] Specifically, the gas storage assembly 16 includes a fixed seat 1601, a limiting ring 1602 is provided on the top of the fixed seat 1601, a gas storage tank 1603 is provided on the top of the fixed seat 1601, an electromagnetic valve 2 1604 is provided at the output end of the gas storage tank 1603, an air outlet pipe 1 1605 is provided at the other end of the electromagnetic valve 2 1604, an air outlet pipe 1 1605 is provided at the other end of the air outlet pipe 1 1605, an air outlet pipe 2 1606 and a connecting pipe 1 1607 are provided, and the connecting pipe 1 1607 is communicated with the connecting pipe 2 17, and the fixed seat 1601 is connected to the gas storage tank 1603 through the limiting ring 1602. Adaptation, the inlet diameter of connecting pipe 1607 is smaller than the outlet diameter. The advantage is that through the design of connecting pipe 1607, when the sprayed dry ice needs to be pressurized, it can be transported through solenoid valve 2 1604, air outlet pipe 1 1605, air outlet pipe 2 1606, connecting pipe 1 1607 and connecting pipe 2 17. According to the Venturi tube principle, the transportation of dry ice can be accelerated, and the solenoid valve 15 can accurately control the discharge of dry ice. The structural design of the gas storage component 16 ensures the stable supply and reasonable transportation of gas, providing a stable power basis for the spraying of dry ice.

[0031] Specifically, the spray gun assembly 19 includes a spray gun housing 1901, a mounting hole 1902 is provided on the outside of the spray gun housing 1901, an air outlet 1903 is provided on the inside of the spray gun housing 1901, a bolt 1904 is threadedly connected to the inside of the mounting hole 1902, and a connecting frame 1905 is provided on the top of the spray gun housing 1901. The spray gun housing 1901 is provided with two identical ones with the same structure. The bolt 1904 passes through the identical two spray gun housings 1901 and extends to the outside thereof. The advantage is that the gas and dry ice are mixed and sprayed in the spray gun assembly 19, which ensures the stability of the spray gun. The stable connection and reasonable structural design of the spray gun assembly 19 enable the dry ice to be efficiently and stably sprayed onto the surface to be cleaned, thereby improving the cleaning effect.

[0032] Specifically, the same number of bolts 1904 and mounting holes 1902 are provided, and the multiple bolts 1904 and mounting holes 1902 are equidistantly distributed. The advantage is that during installation, the bolts 1904 can be inserted into the mounting holes 1902 and then passed through the other spray gun housing 1901, so that the two spray gun housings 1901 can be quickly installed, which is convenient for later maintenance.

[0033] Example 2: Figure 2-6 As shown, it is an improvement to the previous embodiment.

[0034] Specifically, the cross-section of the air outlet 1903 is a "conical" structure, and the connecting frame 1905 is threadedly connected to the nozzle 1906 and the air outlet cover 1907. The nozzle 1906 and the air outlet cover 1907 are an integrated structure. The advantage is that through the design of the "conical" structure of the cross-section of the air outlet 1903, when the gas and dry ice pass through, the cross-sectional area gradually becomes smaller. According to the principles of fluid mechanics, the flow rate of the gas and dry ice will increase, thereby increasing the kinetic energy and impact force of the spray, which is more conducive to removing dirt on the surface to be cleaned.

[0035] Specifically, a feed hopper 8 is fixedly installed on the top of the cleaning machine housing 1, a top cover 9 is fixedly installed on the top of the feed hopper 8, and a sealing ring 10 is fixedly installed at the connection between the feed hopper 8 and the cleaning machine housing 1. The sealing ring 10 is a rubber sealing ring. The advantage is that through the design of the feed hopper 8, the crushed dry ice can be fed from the feed hopper 8 into the interior of the cleaning machine housing 1, and the top cover 9 on the top of the feed hopper 8 can prevent impurities from entering. The rubber sealing ring 10 at the connection between the feed hopper 8 and the cleaning machine housing 1 ensures sealing, prevents leakage of dry ice sublimation gas, reduces the loss of dry ice, and ensures that the dry ice can smoothly enter the interior of the cleaning machine for subsequent processing.

[0036] Specifically, the transfer box 13, the discharge pipe 14, the solenoid valve 15 and the gas storage component 16 are connected, and the inner wall of the transfer box 13 is designed to be inclined. The advantage is that the crushed dry ice can fall to the lower component through the transfer box 13, the discharge pipe 14, the solenoid valve 15 and the gas storage component 16, and then the crushed dry ice can be easily discharged through the inclined design of the inner wall of the transfer box 13 to avoid blockage.

[0037] Working principle: During use, through the design of connecting pipe 1607, when the sprayed dry ice needs to be pressurized, it can be transported through solenoid valve 2 1604, air outlet pipe 1 1605, air outlet pipe 2 1606, connecting pipe 1 1607 and connecting pipe 2 17. According to the Venturi tube principle, the transportation of dry ice can be accelerated, and the solenoid valve 15 can accurately control the discharge of dry ice. The structural design of the gas storage component 16 ensures the stable supply and reasonable transportation of gas, providing a stable power basis for the spraying of dry ice. The gas and dry ice are mixed and sprayed in the spray gun component 19 to ensure the stability of the spray gun. The stable connection and reasonable structural design of the spray gun component 19 enable the dry ice to be sprayed efficiently and stably onto the surface to be cleaned, thereby improving the cleaning effect. During installation, the bolt 1904 can be inserted into the mounting hole 1902 and then passed through the other spray gun housing 1901 to achieve quick installation of the two spray gun housings 1901, which is convenient In later maintenance, the cross-section of the air outlet 1903 is designed to be "conical". When the gas and dry ice pass through, the cross-sectional area gradually becomes smaller. According to the principles of fluid mechanics, the flow rate of the gas and dry ice will increase, thereby increasing the kinetic energy and impact force of the injection, which is more conducive to removing dirt on the surface to be cleaned. Through the design of the feed hopper 8, the crushed dry ice can be fed from the feed hopper 8 into the interior of the cleaning machine housing 1. The top cover 9 on the top of the feed hopper 8 can prevent impurities from entering. The rubber sealing ring 10 at the connection between the feed hopper 8 and the cleaning machine housing 1 ensures the sealing, prevents the leakage of dry ice sublimation gas, reduces the loss of dry ice, and ensures that the dry ice can smoothly enter the interior of the cleaning machine for subsequent processing. Through the transfer box 13, the discharge pipe 14, the solenoid valve 15 and the gas storage component 16, the crushed dry ice can fall to the lower component. Then, the inner wall of the transfer box 13 is inclined, which is convenient for unloading the crushed dry ice and avoids blockage.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully pneumatic dry ice cleaning machine, comprising a cleaning machine housing (1), a transfer box (13) and a spray gun assembly (19), characterized in that: A control panel (2) is fixedly installed on the rear side of the cleaning machine housing (1), a universal wheel (3) is rotatably installed on the bottom of the cleaning machine housing (1), a fixed rod (4) is fixedly installed on the bottom of the cleaning machine housing (1), a rotating rod (5) is rotatably installed on the outside of the fixed rod (4), a roller (6) is fixedly installed on the outside of the rotating rod (5), a handle (7) is fixedly installed on the top of the cleaning machine housing (1), a distribution hopper (11) is fixedly installed inside the cleaning machine housing (1), a storage hopper (12) is fixedly installed on the other side of the distribution hopper (11), a transfer box (13) is fixedly installed on the bottom of the storage hopper (12), a discharge pipe (14) is fixedly installed on the bottom of the transfer box (13), a solenoid valve (15) is provided at the bottom of the discharge pipe (14), a gas storage assembly (16) is provided at the other end of the solenoid valve (15), and a connecting pipe (17) and a flange (18) are provided on the outside of the gas storage assembly (16).

2. The fully pneumatic dry ice cleaning machine according to claim 1, characterized in that: The gas storage assembly (16) comprises a fixed seat (1601), a limiting ring (1602) is provided on the top of the fixed seat (1601), a gas storage tank (1603) is provided on the top of the fixed seat (1601), an output end of the gas storage tank (1603) is provided with a second solenoid valve (1604), the other end of the second solenoid valve (1604) is provided with a first gas outlet pipe (1605), the other end of the first gas outlet pipe (1605) is provided with a second gas outlet pipe (1606) and a first connecting pipe (1607), the first connecting pipe (1607) and the second connecting pipe (17) are in communication, the fixed seat (1601) is adapted to the gas storage tank (1603) via the limiting ring (1602), and the inlet diameter of the first connecting pipe (1607) is smaller than the outlet diameter.

3. The fully pneumatic dry ice cleaning machine according to claim 2, characterized in that: The spray gun assembly (19) includes a spray gun housing (1901), a mounting hole (1902) is provided on the outside of the spray gun housing (1901), an air outlet (1903) is provided on the inside of the spray gun housing (1901), a bolt (1904) is threadedly connected to the inside of the mounting hole (1902), a connecting frame (1905) is provided on the top of the spray gun housing (1901), and the spray gun housing (1901) is provided with two identical ones with the same structure, and the bolt (1904) passes through the identical two spray gun housings (1901) and extends to the outside thereof.

4. The fully pneumatic dry ice cleaning machine according to claim 3, characterized in that: The bolts (1904) and the mounting holes (1902) are provided in equal numbers, and the plurality of bolts (1904) and the mounting holes (1902) are distributed at equal intervals.

5. The fully pneumatic dry ice cleaning machine according to claim 4, characterized in that: The cross section of the air outlet (1903) is a "conical" structure, and the connection frame (1905) is threadedly connected to the nozzle (1906) and the air outlet cover (1907), and the nozzle (1906) and the air outlet cover (1907) are an integrated structure.

6. The fully pneumatic dry ice cleaning machine according to claim 1, characterized in that: A feed hopper (8) is fixedly mounted on the top of the cleaning machine housing (1), a top cover (9) is fixedly mounted on the top of the feed hopper (8), and a sealing ring (10) is fixedly mounted at the connection between the feed hopper (8) and the cleaning machine housing (1), and the sealing ring (10) is a rubber sealing ring.

7. The fully pneumatic dry ice cleaning machine according to claim 1, characterized in that: The transfer box (13), the discharge pipe (14), the electromagnetic valve (15) and the gas storage component (16) are connected to each other, and the inner wall of the transfer box (13) is designed to be inclined.

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