Dry ice fog machine

Abstract

The present invention provides a smoke machine using dry ice, comprising a shell, a first chamber, a second chamber and a third chamber, the shell comprising a smoke outlet formed on the outer side, the first chamber comprising a smoke outlet, the first chamber accommodating at least one dry ice, the second chamber containing water and equipped with a heater, an inclined isolating member arranged between the first chamber and the second chamber, the isolating member comprising a water drain opening, a pumping device fixedly arranged in the third chamber, the pumping device comprising a water inlet end located in the second chamber and a water spray end located in the first chamber, the pumping device being used to send water in the second chamber to the first chamber, the water heated in the second chamber being sent by the pumping device to the first chamber to contact with at least one dry ice to generate smoke.

Description

Technical Field

[0001] The invention relates to a dry ice smoke machine, in particular to a device that utilizes and controls dry ice (solid carbon dioxide) to directly sublime from solid to gaseous state when heated to produce smoke effect. Background Art

[0002] Solid carbon dioxide, called dry ice, has the property that it will directly sublimate into gas when heated to produce a smoke effect. Therefore, some industry insiders have designed a dry ice smoke machine based on the properties of dry ice. This dry ice smoke machine mechanically controls the amount and timing of smoke produced by dry ice. Traditional dry ice smoke machines usually have a drain basket with multiple holes inside, dry ice is placed inside the drain basket, and hot water is placed under the drain basket. When the dry ice smoke machine does not produce smoke, the drain basket is located at a position where the dry ice is separated from the hot water below. To produce smoke, some dry ice smoke machines drive the drain basket to move toward the direction close to the hot water to the position where the dry ice and the hot water are in contact. In this way, the dry ice will sublimate into gas due to the absorption of heat to produce a large amount of smoke. The dry ice smoke machine then guides the smoke out of the dry ice smoke machine to create a smoky effect.

[0003] This traditional dry ice fog machine operation mode (the drain basket moves to soak the dry ice in hot water) has poor insulation effect because the dry ice is soaked in hot water, so there is no separation between the dry ice and the hot water. Therefore, the dry ice is usually stored in an insulation box independent of the outside of the dry ice fog machine. When it is used, the dry ice is taken out of the insulation box and further placed in the dry ice fog machine. This method of use is not convenient, and the temperature of the heated water during use will also cause the storage time of the dry ice to decrease. For example, the stage where the dry ice fog machine is often used will continue to consume dry ice even if it is not used, because the dry ice fog machine has no insulation effect or has a very poor insulation effect. If the stage performance time is long, it may encounter a situation where the dry ice inside the dry ice fog machine has been exhausted or insufficient when smoke needs to be generated, and it is not suitable to replenish the dry ice in the dry ice fog machine during the stage performance time.

[0004] Furthermore, due to the operation mode of the traditional dry ice smoke machine (the drain basket moves to soak the dry ice in hot water), the volume of the dry ice smoke machine is at least twice its dry ice capacity (so that the dry ice can be completely immersed in water). Therefore, the dry ice capacity of most commercially available dry ice smoke machines is not large, so the amount of smoke that a single dry ice smoke machine can produce is not enough and the time of producing smoke is not long enough. Alternatively, if the volume of the dry ice smoke machine is increased, the dry ice capacity can be increased, but since the drain basket has to move with the dry ice, if a lot of dry ice is placed in the drain basket, the drain basket may be too heavy to move. Further consideration, the dry ice smoke machine is usually set on the stage, and a large dry ice smoke machine is not suitable for being set on the stage. Therefore, increasing the volume of the dry ice smoke machine is not a better way to solve the dry ice capacity problem. Summary of the invention

[0005] The purpose of the present invention is to provide a fog machine using dry ice to solve the above technical problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides a smoke machine using dry ice, comprising: a shell, comprising a first chamber, a second chamber and a third chamber, the shell comprising a smoke outlet formed on the outside and connected to the second chamber, the first chamber comprising a smoke exhaust outlet connected to the second chamber and staggered from the smoke outlet, the first chamber being constructed to accommodate at least one dry ice, the second chamber being constructed to contain water, an isolating member disposed between the first chamber and the second chamber and located below the smoke exhaust outlet, the isolating member comprising a water drain opening connecting the first chamber and the second chamber, the isolating member being arranged in an inclined shape so that the water drain opening is located at the lowest height of the isolating member, a water pumping device fixed in the third chamber, the water pumping device The device includes a water inlet end located in the second chamber and a water spray end located in the first chamber, the pumping device is used to send water from the second chamber to the first chamber, a heating device, including a heater arranged in the second chamber, the heater is used to increase the temperature of the water, a drainage mechanism, combined with the isolation member, the drainage mechanism includes a cover plate that can be movably and elastically positioned to cover the drainage opening and a support spring that supports the cover plate to be located at a first position to close the drainage opening. When the water level in the first chamber rises to a weight applied to the cover plate that exceeds the support force of the support spring, the cover plate moves from the first position to a second position to open the drainage opening, and the water in the first chamber flows back to the second chamber.

[0007] The dry ice smoke machine of the present invention utilizes a pumping device to transport water from the second chamber to the first chamber, and cooperates with a drainage mechanism to allow the water in the first chamber to flow back to the second chamber. The dry ice can be continuously in contact with water at a higher temperature without moving the dry ice, and efficiently absorb the heat of the water to vaporize into gas to produce a smoke effect. Compared with the prior art, the smoke machine can accommodate more dry ice under the condition of the same volume (because some space originally provided for the drain basket and the dry ice displacement to be immersed in water and the space for accommodating the mechanism for providing the drain basket and the dry ice movement can be used to place a larger drain basket and additional dry ice), further extending the time the smoke machine can produce smoke (the operation time of the dry ice smoke machine is increased).

[0008] The smoke machine using dry ice, wherein an inclined bottom wall is formed between the first chamber and the second chamber, the bottom wall includes a through hole extending between the first chamber and the second chamber, the isolation piece is combined with the bottom wall and covers the through hole, and when the cover is located in the second position, the drainage opening is connected to the through hole.

[0009] The inclined bottom wall is arranged inclined so that the drain opening is arranged at the lowest position in the height direction of the bottom wall, so that the water in the first receiving chamber can be smoothly discharged from the drain opening into the second receiving chamber.

[0010] The smoke machine using dry ice further includes: an isolation cover, including a front opening connected to the smoke outlet and a lower opening connected to the front opening, wherein the first chamber is composed of a surrounding wall formed in the second chamber and a bottom wall formed at the bottom of the surrounding wall and inclined, the bottom wall includes a through hole extending between the first chamber and the second chamber, the isolation piece is combined with the bottom wall and covers the through hole, the smoke outlet is staggered, the isolation cover is fixed between the surrounding wall and the smoke outlet and staggered with the smoke outlet, and the lower opening faces the opposite side of the smoke outlet and is connected to the second chamber.

[0011] The smoke machine using dry ice is provided with a overflow-stopping element at the smoke exhaust port and located in the first chamber, wherein the overflow-stopping element includes a coupling portion coupled to the outer periphery of the smoke exhaust port and a blocking portion separated from the coupling portion at one end, the coupling portion includes a through hole corresponding to the smoke exhaust port, and one end of the blocking portion is located above the bottom of the through hole.

[0012] The smoke machine using dry ice further comprises: a smoke exhaust valve pivotally mounted at the smoke exhaust port and located in the second chamber. When smoke is generated in the first chamber and the pressure increases, the smoke exhaust valve is pushed open by the smoke to allow the smoke to enter the second chamber.

[0013] The smoke machine using dry ice, the isolation element further includes an insulation layer, and the insulation layer is separated from the water drain opening.

[0014] The smoke machine using dry ice, wherein the isolation member further comprises a wall formed around the drain opening, the wall comprising a plurality of holes for providing water to pass through the drain opening.

[0015] By combining the hole with the flow control of the pumping device, the function of controlling the water level in the first chamber can be easily achieved. When the flow of the pumping device is small, the water level in the first chamber is low and the amount of smoke generated is small. When the flow of the pumping device is large, the water level in the first chamber is high and the amount of smoke generated is large.

[0016] The dry ice smoke machine further comprises: a drain basket, which is detachably coupled to the first container, the drain basket comprises a plurality of drain ports and a track portion formed on the surface, the at least one dry ice is placed in the drain basket, and a positioning portion is fixed in the first container, the positioning portion is detachably engaged with the track portion of the drain basket.

[0017] The advantage of the dry ice smoke machine of the present invention is that it utilizes a pumping device to transport water from the second chamber to the first chamber, and cooperates with a drainage mechanism to allow the water in the first chamber to flow back to the second chamber. Without moving the dry ice, the dry ice can continuously contact the water with a higher temperature and efficiently absorb the heat of the water to vaporize into gas to produce a smoke effect. Compared with the prior art, the smoke machine can accommodate more dry ice under the condition of the same volume (because some space originally provided for the drain basket and the displacement of dry ice to be immersed in water and the space for accommodating the mechanism for providing the drain basket and the movement of dry ice can be used to place a larger drain basket and additional dry ice), further extending the time the smoke machine can produce smoke (the operating time of the dry ice smoke machine is increased).

[0018] The present invention will be more clearly understood following the detailed description which illustrates illustrative embodiments of the invention taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional exploded view of the smoke machine of the present invention.

[0020] Figure 2 It is a three-dimensional combination diagram of the smoke machine of the present invention.

[0021] Figure 3 It is along Figure 2 A cross-sectional view taken along line 3-3.

[0022] Figure 4 yes Figure 3 The enlarged partial view is used to show the structural features of the smoke exhaust valve.

[0023] Figure 5 It is along Figure 2A cross-sectional view taken along line 5-5.

[0024] Figure 6 It is along Figure 2 A cross-sectional view taken along line 6-6.

[0025] Figure 7 It is a state diagram showing the smoke machine of the present invention generating smoke.

[0026] Figure 8 It is another state diagram showing the smoke machine of the present invention generating smoke.

[0027] Fig. 9 A diagram showing the state where the water pressure in the first chamber pushes the cover plate to move to the first position to open the water drain opening.

[0028] Explanation of the reference numerals in the accompanying drawings: 10 smoke machine; 20 housing; 21 smoke outlet; 24 first chamber; 24A positioning portion; 26 second chamber; 28 third chamber; 30 surrounding wall; 32 smoke outlet; 34 bottom wall; 36 through hole; 38 spacer; 38A insulation layer; 40 drainage opening; 41 enclosure; 42 drain basket; 43 opening; 44 drainage outlet; 45 track portion; 46 overflow stop element; 47 baffle; 47A end; 48 joint; 48A through hole; 50 smoke valve; 52 drainage mechanism; 54 support seat; 56 cover plate; 58 support spring; 60 pumping device; 62 water inlet end; 64 water spray end; 66 heating device; 68 heater; 70 lid; 72 side cover; 74 isolation cover; 76 lower opening; 77 front opening; 80 dry ice; 82 water. DETAILED DESCRIPTION

[0029] All drawings are for the purpose of explaining the basic teachings only. The number, position, relationship, and extension of the dimensions of the components constituting the illustrative embodiments will be described in the drawings or will be within the skill of the art after reading and understanding the following description. In addition, the exact dimensions and dimensional ratios to meet specific strength, weight, strength, and similar requirements will also be within the skill of the art after reading and understanding the following description.

[0030] The same or similar elements are indicated by the same reference numerals in different drawings. In addition, please understand that terms such as "top", "bottom", "first", "second", "forward", "backward", "reverse", "front", "backward", "height", "width", "length", "end", "side", "horizontal", "vertical", etc. and similar terms in the text are only used to facilitate the viewer to refer to the structure in the figure and are only used to help describe the illustrative embodiments.

[0031] The present invention relates to a smoke machine, and more particularly to a smoke machine 10 that generates smoke by directly vaporizing dry ice. Figure 1 to Figure 6As shown, the fog machine 10 includes a housing 20 , and the housing 20 includes a first chamber 24 , a second chamber 26 , and a third chamber 28 separated from the first and second chambers 24 , 26 .

[0032] The housing 20 further has a smoke outlet 21 formed on the outer surface and connected to the second chamber 26, wherein the first chamber 24 is separated by a surrounding wall 30 formed in the second chamber 26 and a bottom wall 34 formed at the bottom end of the surrounding wall 30 and inclined toward one of the corners. In other words, the first chamber 24 is located in the second chamber 26, and the surrounding wall 30 includes a smoke outlet 32 ​​on the same side as the smoke outlet 21 but staggered therefrom. In fact, the smoke outlet 32 ​​is located above the smoke outlet 21 in the height direction and adjacent to the upper opening of the first chamber 24. The bottom wall 34 includes a through hole 36 extending between the first chamber and the second chamber 24, 26, and one corner of the inclined bottom wall 34 is lower in the height direction than the other corners. The third chamber 28 is formed by a groove chamber recessed on the outer surface of the housing 20.

[0033] A overflow-stop element 46 is arranged on the surrounding wall 30 and aligned with the smoke exhaust port 32. The overflow-stop element 46 includes a coupling portion 48 coupled to the outer periphery of the smoke exhaust port 32 and a blocking portion 47 separated from the coupling portion 48 at one end. The coupling portion 48 includes a through hole 48A corresponding to the smoke exhaust port 32, and an end 47A of the blocking portion 47 is located above the bottom of the through hole 48A.

[0034] A smoke exhaust valve 50 is pivotally mounted in the smoke exhaust port 32 and on the joint 48 of the overflow stop element 46 . The smoke exhaust valve 50 closes the overflow stop element 46 and the through hole 48 in a naturally stress-free state.

[0035] The smoke machine 10 of the present invention further comprises a partition 38 fixed in the first chamber 24 and a drainage mechanism 52 located between the first chamber and the second chamber 24, 26, the partition 38 comprises a heat insulating layer 38A formed in a sandwich shape, the partition 38 further comprises a drainage opening 40 formed in one corner and a surrounding wall 41 formed around the drainage opening 40, the surrounding wall 41 comprises a plurality of small-sized holes 43. The partition 38 is fixed on the bottom wall 34 and covers the through hole 36, the drainage opening 40 is connected to the through hole 36, and the drainage opening 40 is located at the lowest corner of the bottom wall 34 in the height direction, and the heat insulating layer 38A is used to reduce the heat exchange effect between the first chamber and the second chamber 24, 26.

[0036] The drainage mechanism 52 is substantially combined with the isolation member 38. The drainage mechanism 52 further includes a support seat 54 fixedly arranged at the bottom of the isolation member 38 and located in the second chamber 26, and a cover plate 56 that can be movably combined with the support seat 54. A support spring 58 is arranged between the cover plate 56 and the support seat 54. The cover plate 56 can be moved to a first position (such as a first position) that opens the drain opening 40. Figure 6 ) or a second position (as shown) of the closed drain opening 40 Fig. 9 As shown in FIG. 4 , the support spring 58 biases the cover plate 56 to a second position that closes the drain opening 40 .

[0037] A drain basket 42 is detachably accommodated in the first chamber 24. The drain basket 42 includes a plurality of drain ports 44 and two rail portions 45 formed on the outer surface. Two positioning portions 24A are provided in the first chamber 24 and on the surrounding wall 30 corresponding to the two rail portions 45. When the drain basket 42 is accommodated in the first chamber 24, the two rail portions 45 are detachably engaged with the two positioning portions 24A, so that the drain basket 42 is positioned at the center of the first chamber 24. The drain basket 42 can accommodate at least one dry ice 80.

[0038] As shown in the figure, the smoke machine 10 further includes a pumping device 60 and a heating device 66, wherein the pumping device 60 is fixed in the third chamber 28, the pumping device 60 is composed of a pumping motor, and the pumping device 60 further includes a water inlet end 62 located in the second chamber 26 and a water spray end 64 located in the first chamber 24. When the pumping device 60 is running, the water in the second chamber 26 can be sent to the first chamber 24.

[0039] The heating device 66 is disposed on the housing 20 , and includes a heater 68 located at the bottom of the second chamber 26 . The heater 68 can heat the water contained in the second chamber 26 to increase the temperature.

[0040] A side cover 72 is fixedly installed on the surface of the housing 20 and corresponds to the position of the third chamber 28. The side cover 72 covers the third chamber 28. A lid 70 is pivotally installed at the opening of the first chamber 24 above the housing 20. When the lid 70 is closed, the first chamber 24 is sealed.

[0041] The smoke machine 10 further includes an isolation cover 74, which includes a front opening 77 corresponding to the smoke outlet 21 and a lower opening 76 corresponding to the second chamber 26. The isolation cover 74 is disposed between the smoke outlet 21 and the surrounding wall 30, and one end of the front opening 77 is accommodated in the smoke outlet 21, and the lower opening 76 of the isolation cover 74 faces the direction of the heater 68 of the second chamber 26.

[0042] For the convenience of explanation, it is assumed that 8 pieces of dry ice 80 are placed in the drain basket 42, and a proper amount of water 82 is placed in the second chamber 26, and the height of the water 82 is higher than the heater 68 of the smoke screen heating device 66. When the smoke machine 10 is not in operation, the water 82 is substantially at room temperature, and the dry ice 80 and the water 82 are separated by the isolation member 38, and further, the dry ice 80 can be better preserved when the smoke machine 10 is not in operation.

[0043] See also Figure 7-Figure 8 As shown, when smoke is to be generated, the heater 68 of the heating device 66 heats the water 82 to increase its temperature, and the pumping device 60 draws the water with increased temperature from the water inlet end 62 and flows out from the water spray end 64, so that the water level in the first chamber 24 rises. When the water level of the water 82 with a higher temperature in the first chamber 24 rises and enters the drain basket 42 from each drain port 44 and contacts each dry ice 80, each dry ice 80 absorbs the heat of the water and vaporizes into smoke. Further, when the smoke fills the first chamber 24, the pressure inside the first chamber 24 is greater than the pressure of the second chamber 26 and the weight of the smoke exhaust valve 50, the smoke in the first chamber 24 pushes open the smoke exhaust valve 50 and enters the remaining space in the second chamber 26 without water 82 through the through hole 48A and the smoke exhaust port 32.

[0044] It is worth mentioning that, due to the isolation cover 74, the smoke from the first chamber 24 will not be directly ejected from the smoke outlet 21, because the lower opening 76 of the isolation cover 74 is separated from the smoke outlet 32, so the smoke from the first chamber 24 needs to diffuse to the second chamber 26 before being ejected from the lower opening 76 of the isolation cover 74 through the front opening 77 and the smoke outlet 21. The advantage of this design is that it is not easy to bring the water vapor generated by the higher temperature water 82 in the first chamber 24 out of the first chamber 24 with the smoke, so the smoke ejected from the smoke outlet 21 is relatively dry. Furthermore, the stopper 47 of the overflow stopper element 46 can prevent the water, water splashes or water vapor introduced into the first chamber 24 from overflowing from the through hole 48A and the smoke outlet 32.

[0045] In addition, when the water level in the first chamber 24 is low, the water in the first chamber 24 enters the enclosure 41 through the holes 43 of the enclosure 41, and the water pressure increases the pressure on the cover 56. When the pressure on the cover 56 exceeds the load of the support spring 58, the cover 56 moves from the second position closing the drain opening 40 to the first position opening the drain opening 40. In this way, the water injected into the first chamber 24 can flow back into the second chamber 26 through the drain opening 40 through the through hole 36, so that the water 82 with the lowered temperature can be heated again.

[0046] The dry ice smoke machine 10 of the present invention utilizes the pumping device 60 to transport the water 82 in the second chamber 26 to the first chamber 24, and cooperates with the drainage mechanism 52 to allow the water in the first chamber 24 to flow back to the second chamber 26. The dry ice 80 can be kept in contact with the water 82 with a higher temperature without moving the dry ice 80, and efficiently absorb the heat of the water 82 to be vaporized into gas to produce smoke. Compared with the prior art, the smoke machine 10 can accommodate more dry ice 80 under the condition of the same volume (because some space originally provided for the drain basket and the dry ice displacement to be immersed in water and the space for accommodating the mechanism for providing the drain basket and the dry ice movement can be used to place a larger drain basket and additional dry ice), further extending the time for the smoke machine 10 to produce smoke (the operation time of the dry ice smoke machine is increased).

[0047] Since the drain basket 42 and the dry ice 80 do not need to be moved, the weight of moving the dry ice 80 does not need to be considered when designing the smoke machine 10. Even if the drain basket 42 is enlarged, resulting in an increase in weight, it has no direct impact on the operation of the entire smoke machine 10. It further allows the volume of the smoke machine to be increased to accommodate more dry ice inside the smoke machine, which can further effectively extend the operation time of the smoke machine.

[0048] By combining the hole with the flow control of the pumping device, the function of controlling the water level in the first chamber can be easily achieved. When the flow of the pumping device is small, the water level in the first chamber is low and the amount of smoke generated is small. When the flow of the pumping device is large, the water level in the first chamber is high and the amount of smoke generated is large.

[0049] Another advantage of the smoke machine 10 of the present invention is that an isolation member 38 is disposed between the first chamber and the second chamber 24, 26. The insulation layer 38A of the isolation member 38 can reduce the efficiency of transferring the temperature of the water 82 to the first chamber 24, further effectively extending the storage time of the dry ice 80 in the first chamber 24.

[0050] The lower opening 76 of the isolation cover 74 is arranged toward the heater 68, which has the advantage that the water vapor generated by the water 82 with a higher temperature in the first chamber 24 is not easily brought out of the first chamber 24 along with the smoke, so that the smoke sprayed from the smoke outlet 21 is relatively dry.

[0051] By disposing the overflow stop element 46 , the probability of moisture in the first chamber 24 passing through the smoke exhaust port 32 can be effectively reduced, and the isolation cover 74 can be used to reduce the probability of moisture leaking from the smoke outlet 21 .

[0052] The inclined bottom wall 34 is arranged inclined so that the drain opening 40 is arranged at the lowest position in the height direction of the bottom wall 34 , so that the water 82 in the first receiving chamber 24 can be smoothly discharged from the drain opening 40 into the second receiving chamber 26 .

[0053] The basic teachings of the present invention have been described, and many extensions and variations will be apparent to those skilled in the art. For example, the smoke machine 10 may not include the drain basket 42, so that the at least one dry ice 80 can still be contained in the first chamber 24 and can be directly vaporized to generate smoke after contacting hot water.

Claims

1. A fog machine using dry ice, characterized in that: include: A housing, comprising a first chamber, a second chamber and a third chamber, the housing comprising a smoke outlet formed on the outer side and connected to the second chamber, the first chamber comprising a smoke exhaust outlet connected to the second chamber and staggered from the smoke outlet, an inclined bottom wall is formed between the first chamber and the second chamber, the bottom wall comprises a through hole extending between the first chamber and the second chamber, the first chamber is configured to accommodate at least one dry ice, and the second chamber is configured to accommodate water; an isolating member, arranged between the first chamber and the second chamber and below the smoke exhaust port, the isolating member comprising a drain opening communicating with the first chamber and the second chamber, the isolating member further comprising an insulating layer, the insulating layer being separated from the drain opening, the isolating member being arranged in an inclined shape so that the drain opening is located at the lowest height of the isolating member, the isolating member being further combined with the bottom wall and covering the through hole; A pumping device is fixed in the third chamber, the pumping device comprises a water inlet end located in the second chamber and a water spray end located in the first chamber, and the pumping device is used to deliver water from the second chamber to the first chamber; A heating device, including a heater disposed in the second chamber, the heater is used to increase the temperature of the water; A drainage mechanism is combined with the isolation member, the drainage mechanism includes a cover plate that can be moved and elastically positioned to cover the drain opening and a support spring that supports the cover plate to be located at a first position to close the drain opening. When the water level in the first chamber rises to a point where the weight applied to the cover plate exceeds the support force of the support spring, the cover plate moves from the first position to a second position to open the drain opening, the drain opening is connected to the through hole, and the water in the first chamber flows back to the second chamber.

2. The dry ice fog machine according to claim 1, characterized in that: Also includes: An isolation cover includes a front opening connected to the smoke outlet and a lower opening connected to the front opening, wherein the first chamber is composed of a surrounding wall formed in the second chamber and a bottom wall formed at the bottom of the surrounding wall and inclined, the bottom wall includes a through hole extending between the first chamber and the second chamber, the isolation piece is combined with the bottom wall and covers the through hole, the smoke outlet is staggered, the isolation cover is fixed between the surrounding wall and the smoke outlet and staggered with the smoke outlet, and the lower opening faces the opposite side of the smoke outlet and is connected to the second chamber.

3. The dry ice fog machine according to claim 1, characterized in that: A overflow-stopping element is arranged at the smoke exhaust port and located in the first chamber. The overflow-stopping element includes a combining portion combined with the outer periphery of the smoke exhaust port and a blocking portion separated from the combining portion at one end. The combining portion includes a through hole corresponding to the smoke exhaust port, and one end of the blocking portion is located above the bottom of the through hole.

4. The smoke machine using dry ice according to claim 3, characterized in that: Also includes: A smoke exhaust valve is pivotally arranged at the smoke exhaust port and is located in the second receiving chamber. When smoke is generated in the first receiving chamber and the pressure increases, the smoke exhaust valve is pushed open by the smoke to allow the smoke to enter the second receiving chamber.

5. The dry ice fog machine according to claim 1, characterized in that: The isolation member further comprises a surrounding wall formed around the drain opening, wherein the surrounding wall comprises a plurality of holes for providing water to pass through the drain opening.

6. The smoke machine using dry ice according to claim 1, characterized in that: Also includes: A drain basket is detachably coupled to the first container, the drain basket comprises a plurality of drain ports and a track portion formed on the surface, and the at least one dry ice is placed in the drain basket; A positioning part is fixed in the first receiving chamber, and the positioning part is detachably engaged with the track part of the drain basket.

Images