Air supplementing and releasing dry ice cleaning structure

By designing a dry ice cleaning structure with air replenishment and degassing, and using stepper motors and brushless motors to control the falling and size of dry ice particles, combined with a pressure relief valve and negative pressure system, the problems of ice blockage and insufficient ice in the dry ice cleaning machine are solved, thereby improving cleaning efficiency and equipment stability.

CN223530998UActive Publication Date: 2025-11-11KUNSHAN DENG ELECTRONICS TECH
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Patent Information

Application Number
CN202422785886.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-11-11
Estimated Expiration
2034-11-15

AI Technical Summary

Technical Problem

Existing dry ice cleaning machines are prone to ice blockage and insufficient ice, which affects the cleaning effect and equipment operation.

Method used

A dry ice cleaning structure with air replenishment and degassing was designed. By coordinating a stepper motor and a brushless motor, the falling and size of the dry ice particles are controlled. Combined with a pressure relief valve and a negative pressure system, a balanced supply and fragmentation of dry ice particles are achieved to ensure the cleaning effect.

Benefits of technology

It effectively solves the problems of ice blockage and insufficient ice, improves the efficiency and stability of dry ice cleaning, and ensures the long-term stable operation of the equipment.

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Abstract

The utility model discloses an air supplementing and releasing dry ice cleaning structure. Comprising an acrylic middle through part, a stainless steel ice quantity control part, a brushless motor, a round hopper, a stepping motor protective cover, a locking block, a stepping motor supporting plate, a rotating disc, a stepping gear motor, a pressure release valve, a brushless motor supporting plate, a brushless motor protective cover, a coupler, an ice disc, an L-shaped quick connector, a tempered glass fixing plate, a blade, a reserved blade, a tempered glass pipe and a clamping shaft. When the ice maker is used, the stacked air inlet structures generate negative pressure, the air supply system feeds falling ice particles into the acrylic middle channel and controls the ice amount through stainless steel, the air pressure in the cavity is kept balanced through the pressure release valve, the size of the output ice amount is achieved by controlling the rotating speed of the rotating disc through the stepping motor, and the falling ice particles fall onto the ice disc. The speed of the particles is controlled by the brushless motor, the blade and the reserved blade adjust the rotating speed according to needs to control the size of the ice particles, and the ice tray sucks and conveys the crushed dry ice to the glass melting tube along with negative pressure along with the air supply system.
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Description

Technical Field

[0001] This utility model relates to the technical field of dry ice cleaning machines, specifically to a dry ice cleaning structure for replenishing and releasing gas. Background Technology

[0002] With the rapid development of the industrial sector, the demand for efficient and environmentally friendly cleaning technologies has become increasingly urgent. Traditional cleaning methods typically rely on chemical reagents, which not only cause serious environmental pollution but may also damage equipment and even shorten its lifespan. Therefore, finding a new and environmentally friendly cleaning technology has become an urgent need for the industrial sector, aiming to maintain production efficiency while reducing negative environmental impacts and ensuring the long-term stable operation of equipment.

[0003] The advent of dry ice cleaning technology has brought revolutionary progress to the field of industrial cleaning. This technology utilizes the energy conversion processes of momentum change, sublimation, and melting of dry ice particles during high-speed blasting to rapidly freeze, condense, embrittle, and peel off dirt, oil, and residual impurities from the surface of the object being cleaned. Specifically, during high-speed blasting, the momentum change of dry ice particles generates a tremendous impact force, which rapidly freezes and condenses surface dirt and oil. Subsequently, due to the sublimation properties of dry ice, this frozen dirt and oil rapidly transforms from a solid to a gaseous state, becoming embrittled and being peeled off. This method is not only highly efficient but also environmentally friendly, causing no damage to equipment. Dry ice cleaning technology effectively removes dirt and oil without using any chemical solvents, avoiding the potential environmental and equipment hazards of chemical solvents in traditional cleaning methods. In addition, dry ice cleaning technology is easy to operate and inexpensive, making it widely used in the field of industrial cleaning.

[0004] Existing dry ice cleaning machines are prone to ice blockage and insufficient ice.

[0005] Therefore, it is of great significance to provide a dry ice cleaning structure that can replenish and degas dry ice to solve the problems existing in the current technology. Utility Model Content

[0006] In view of this, the purpose of this application is to provide a dry ice cleaning structure for replenishing and depressing air, so as to solve the problems of ice blockage and insufficient ice in existing dry ice cleaning machines.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A dry ice cleaning structure for replenishing and releasing gas includes an acrylic central tube, a stainless steel ice volume control, a brushless motor, a circular hopper, a stepper motor protective cover, a locking block, a stepper motor support plate, a turntable, a stepper geared motor, a pressure relief valve, a brushless motor support plate, a brushless motor protective cover, a coupling, an ice tray, an L-shaped quick connector, a tempered glass fixing plate, blades, pre-installed blades, a tempered glass tube, and a clamping shaft;

[0009] The stepper motor support plate is installed at the bottom of the circular hopper, the stepper motor is installed at the top of the stepper motor support plate, the stepper motor protective cover is installed above the stepper motor, the pressure relief valve is installed on the side of the stepper motor support plate, and the turntable is fixedly connected to the output shaft of the stepper motor.

[0010] The acrylic central tube is installed below the stepper motor support plate. The acrylic central tube and the stainless steel ice control are installed above and below the brushless motor support plate, respectively. The brushless motor is installed at the top of the brushless motor support plate. The brushless motor protective cover is installed above the brushless motor. The output shaft of the brushless motor is connected to the clamping shaft through a coupling. The blade and the reserved blade are both installed at the bottom of the clamping shaft.

[0011] The ice tray is installed below the stainless steel ice control plate, the tempered glass fixing plate is installed below the ice tray, the L-shaped quick connectors are evenly distributed on the sides of the tempered glass fixing plate, the tempered glass tube is installed below the tempered glass fixing plate, and the locking block is installed below the tempered glass tube.

[0012] Preferably, the tempered glass fixing plate has four air inlets around its perimeter. The top center of the tempered glass fixing plate has an annular groove, an O-ring seal position, a contoured opening, and a silicone glass gasket contoured opening, respectively, from the outside to the inside. The end of each air inlet is connected to a U-shaped vent hole, which communicates with the annular groove.

[0013] Preferably, the stepper motor support plate has a vent valve mounting hole on its side, and a vent plug thread hole is connected to the side of the vent valve mounting hole. The stepper motor support plate has a motor mounting hole in the middle. Five ice pellet falling irregular holes are evenly distributed on the surface of the stepper motor support plate. A flow divider RI B is provided on the surface of the stepper motor support plate. A stepper motor wiring contour groove is opened on one side of the stepper motor support plate.

[0014] Preferably, the brushless motor support plate has a motor shaft hole in the middle, irregularly shaped ice-falling holes are evenly distributed around the motor shaft hole, and motor wiring avoidance holes are provided on the side of the brushless motor support plate.

[0015] Preferably, the middle part of the locking block is hollowed out, and the bottom of the locking block is threaded.

[0016] Preferably, the ice tray has a circular hollow center, and ice-dropping holes are arranged around the circular hollow center. The ice-dropping holes are stacked and extended outwards at 360°. The outer perimeter of the ice tray has evenly distributed air inlets. The ice tray is made of SUS material and its inner surface is coated with Teflon non-stick material. The air inlets are connected to U-shaped vent holes.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In use, dry ice is fed into a circular hopper, and an L-shaped quick connector is connected to an external air source. Ice particles fall through five irregularly shaped holes evenly distributed on the surface of the stepper motor support plate to the brushless motor support plate. Subsequently, the ice particles fall into the ice tray through the irregularly shaped ice dropping holes. The ice falls through the ice dropping holes, and at the same time, the stacked air intake structure generates negative pressure. Together with the air replenishment system, the falling ice particles are sent into the acrylic central tube and the stainless steel ice volume control. The air pressure in the cavity is kept balanced by the pressure relief valve. The output ice volume is controlled by the stepper motor to control the turntable speed. The size of the falling ice particles on the ice tray is controlled by the speed of the brushless motor. The blade and the reserved blade are adjusted to control the ice particle size as needed. The ice tray, together with the air replenishment system, sucks the crushed dry ice into the glass melting tube along with the negative pressure.

[0019] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0020] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is an exploded view of the present invention;

[0024] Figure 3 This is a cross-sectional view of the present invention;

[0025] Figure 4 This is a schematic diagram of the tempered glass fixing plate in this utility model;

[0026] Figure 5 This is a schematic diagram of the stepper motor support plate in this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the brushless motor support plate in this utility model.

[0028] In the diagram: 1. Acrylic central tube; 2. Stainless steel ice control; 3. Brushless motor; 4. Circular hopper; 5. Stepper motor protective cover; 6. Locking block; 7. Stepper motor support plate; 8. Turntable; 9. Stepper geared motor; 10. Pressure relief valve; 11. Brushless motor support plate; 12. Brushless motor protective cover; 13. Coupling; 14. Ice tray; 15. L-type quick connector; 16. Tempered glass fixing plate; 17. Blade; 18. Reserved blade; 19. Tempered glass tube; 20. Shaft clamp;

[0029] 21. Air inlet; 22. U-shaped vent; 23. Annular groove; 24. O-ring seal position; 25. Contour opening; 26. Contour opening for silicone glass gasket;

[0030] 27. Vent plug hole; 28. Vent valve mounting hole; 29. ​​Motor mounting hole; 30. Irregularly shaped hole for ice pellets falling; 31. Diverter RI B; 32. Stepper motor wiring contour groove;

[0031] 33. Motor shaft hole; 34. Irregularly shaped ice-falling hole; 35. Motor wiring clearance hole. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0033] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0034] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0035] It should also 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.

[0036] Please see Figure 1-6 This invention provides a technical solution for a dry ice cleaning structure for replenishing and releasing air: including an acrylic central tube 1, a stainless steel ice volume control 2, a brushless motor 3, a circular hopper 4, a stepper motor protective cover 5, a locking block 6, a stepper motor support plate 7, a turntable 8, a stepper motor 9, a pressure relief valve 10, a brushless motor support plate 11, a brushless motor protective cover 12, a coupling 13, an ice tray 14, an L-shaped quick connector 15, a tempered glass fixing plate 16, a blade 17, a reserved blade 18, a tempered glass tube 19, and a clamping shaft 20;

[0037] The stepper motor support plate 7 is installed at the bottom of the circular hopper 4, the stepper motor 9 is installed at the top of the stepper motor support plate 7, the stepper motor protective cover 5 is installed above the stepper motor 9, the pressure relief valve 10 is installed on the side of the stepper motor support plate 7, and the turntable 8 is fixedly connected to the output shaft of the stepper motor 9.

[0038] Acrylic central tube 1 is installed below the stepper motor support plate 7. Acrylic central tube 1 and stainless steel ice control 2 are installed above and below the brushless motor support plate 11, respectively. Brushless motor 3 is installed at the top of brushless motor support plate 11. Brushless motor protective cover 12 is installed above brushless motor 3. The output shaft of brushless motor 3 is connected to clamping shaft 20 through coupling 13. Blade 17 and reserved blade 18 are both installed at the bottom of clamping shaft 20.

[0039] Ice tray 14 is installed below stainless steel ice control plate 2, tempered glass fixing plate 16 is installed below ice tray 14, L-shaped quick connectors 15 are evenly distributed on the side of tempered glass fixing plate 16, tempered glass tube 19 is installed below tempered glass fixing plate 16, and locking block 6 is installed below tempered glass tube 19.

[0040] Air supply structure: The tempered glass fixing plate 16 has four air inlets 21 around its perimeter. The top center of the tempered glass fixing plate 16 has an annular groove 23, an O-ring sealing ring position 24, a contoured opening 25, and a silicone glass gasket contoured opening 26, respectively, from the outside to the inside. The end of the air inlet 21 is connected to a U-shaped vent 22, which is connected to the annular groove 23.

[0041] Venting Structure: Venting valve mounting holes 28 are provided on the side of the stepper motor support plate 7. Venting valve mounting holes 28 are connected to vent plug thread holes 27 on the side. A motor mounting hole 29 is provided in the middle of the stepper motor support plate 7. Five ice particle falling irregular holes 30 are evenly distributed on the surface of the stepper motor support plate 7. A diversion RI B31 is provided on the surface of the stepper motor support plate 7. A stepper motor wiring contour groove 32 is opened on one side of the stepper motor support plate 7. In order to ensure that the negative pressure is kept constant while continuously inputting compressed air into the cavity, a pressure relief valve device is provided on one side of the stepper deceleration fixing plate to balance the pressure in the cavity. When the pressure is too high, the pressure relief valve automatically opens to release pressure, and conversely, it automatically closes to replenish air and balance. The range value of the pressure relief valve is adjustable.

[0042] The brushless motor support plate 11 has a motor shaft hole 33 in the middle, and irregularly shaped ice-falling holes 34 are evenly distributed around the motor shaft hole 33. The brushless motor support plate 11 has a motor wiring avoidance hole 35 on the side.

[0043] The middle part of the locking block 6 is hollowed out so that the flow of ice particles can be clearly observed. The bottom of the locking block 6 is threaded, and the upper part of the locking block 6 is equipped with a movable locking block that connects to the tempered glass tube 19.

[0044] The ice tray 14 has a circular hollow in the middle, which is used for the rotation of the blade 17 and the reserved blade 18. Ice drop holes are provided around the circular hollow. The ice drop holes are 360° stacked and extended. The outer periphery of the ice tray 14 has circumferentially distributed air inlets. The ice tray 14 is made of SUS material and the inner surface is coated with Teflon non-stick material. The air inlets are connected to the U-shaped vent 22. The ice particles falling from the diverter RI B31 are crushed by the rotation of the blade 17. Under the action of air replenishment and negative pressure, the ice particles are sent out to the tempered glass tube 19.

[0045] In practical use, dry ice is fed into the circular hopper 4, then the brushless motor 3 and the stepper motor 9 are started, and the L-shaped quick connector 15 is connected to the external air source. The ice particles fall through five ice particle falling holes 30 evenly distributed on the surface of the stepper motor support plate 7 to the brushless motor support plate 11. Then the ice particles fall into the ice tray 14 through the falling holes 34. The ice falls through the falling holes. At the same time, the stacked air intake structure generates negative pressure. Together with the air replenishment system, the falling ice particles are sent into the acrylic central tube 1 and the stainless steel ice control volume 2. The air pressure in the cavity is kept balanced by the pressure relief valve 10. The output ice volume is controlled by the stepper motor 9 to control the rotation speed of the turntable 8. The falling ice particles land on the ice tray 14. The particle size is controlled by the speed of the brushless motor 3. The blade 17 and the reserved blade 18 are adjusted to control the ice particle size as needed. The ice tray 14, together with the air replenishment system, sucks the crushed dry ice into the glass melting tube 19 along with the negative pressure.

[0046] The above description is merely a preferred embodiment of this utility model and does not limit the scope of protection of this utility model. For those skilled in the art, this utility model can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter alterations made to these embodiments within the spirit and principles of this utility model, through conventional substitutions or methods that achieve the same function without departing from the principles and spirit of this utility model, fall within the scope of protection of this utility model.

Claims

1. A dry ice cleaning structure for gas replenishment and degassing, characterized in that: Includes acrylic central tube (1), stainless steel ice control (2), brushless motor (3), round hopper (4), stepper motor protective cover (5), locking block (6), stepper motor support plate (7), turntable (8), stepper geared motor (9), pressure relief valve (10), brushless motor support plate (11), brushless motor protective cover (12), coupling (13), ice tray (14), L-type quick connector (15), tempered glass fixing plate (16), blade (17), reserved blade (18), tempered glass tube (19), clamping shaft (20); The stepper motor support plate (7) is installed at the bottom of the circular hopper (4), the stepper motor (9) is installed at the top of the stepper motor support plate (7), the stepper motor protective cover (5) is installed above the stepper motor (9), the pressure relief valve (10) is installed on the side of the stepper motor support plate (7), and the turntable (8) is fixedly connected to the output shaft of the stepper motor (9). The acrylic central tube (1) is installed below the stepper motor support plate (7). The acrylic central tube (1) and the stainless steel ice control (2) are installed above and below the brushless motor support plate (11), respectively. The brushless motor (3) is installed at the top of the brushless motor support plate (11). The brushless motor protective cover (12) is installed above the brushless motor (3). The output shaft of the brushless motor (3) is connected to the clamping shaft (20) through the coupling (13). The blade (17) and the reserved blade (18) are both installed at the bottom of the clamping shaft (20). The ice tray (14) is installed below the stainless steel ice control (2), the tempered glass fixing plate (16) is installed below the ice tray (14), the L-shaped quick connectors (15) are evenly distributed on the side of the tempered glass fixing plate (16), the tempered glass tube (19) is installed below the tempered glass fixing plate (16), and the locking block (6) is installed below the tempered glass tube (19).

2. The dry ice cleaning structure for gas replenishment and degassing as described in claim 1, characterized in that: The tempered glass fixing plate (16) is provided with four air inlets (21) around its perimeter. The top center of the tempered glass fixing plate (16) is provided with an annular groove (23), an O-ring sealing ring position (24), a contoured opening (25), and a silicone glass gasket contoured opening (26) from the outside to the inside. The end of the air inlet (21) is connected to a U-shaped vent (22), which is connected to the annular groove (23).

3. The dry ice cleaning structure for gas replenishment and degassing as described in claim 2, characterized in that: The stepper motor support plate (7) has a vent valve mounting hole (28) on its side, and a vent plug hole (27) is connected to the side of the vent valve mounting hole (28). The stepper motor support plate (7) has a motor mounting hole (29) in the middle. The surface of the stepper motor support plate (7) has five ice particle falling irregular holes (30) evenly distributed. The surface of the stepper motor support plate (7) has a diversion RIB (31). The stepper motor support plate (7) has a stepper motor wiring contour groove (32) on one side.

4. The dry ice cleaning structure for gas replenishment and degassing as described in claim 3, characterized in that: The brushless motor support plate (11) has a motor shaft hole (33) in the middle, and irregularly shaped ice-falling holes (34) are evenly distributed around the motor shaft hole (33). The brushless motor support plate (11) has a motor wiring avoidance hole (35) on its side.

5. The dry ice cleaning structure for gas replenishment and degassing as described in claim 4, characterized in that: The locking block (6) has a hollow center and a threaded bottom.

6. The dry ice cleaning structure for gas replenishment and degassing as described in claim 5, characterized in that: The ice tray (14) has a circular hollow in the middle, and ice dropping holes are provided around the circular hollow. The ice dropping holes are 360° stacked and extended outward. The outer periphery of the ice tray (14) has circumferentially distributed air inlets. The ice tray (14) is made of SUS material and the inner surface is coated with Teflon non-stick material. The air inlets are connected to the U-shaped vent (22).