Smoke sprayer capable of changing particle size of fog drops

Abstract

The utility model discloses a smoke sprayer capable of changing the particle size of fog drops. The smoke sprayer comprises a carburetor assembly, a combustion chamber assembly and a telescopic tail pipe assembly. The telescopic tail pipe assembly comprises a sleeve, a telescopic pipe, a rack, a gear and a transmission rod. The combustion chamber assembly comprises a combustion chamber; an outlet pipeline is arranged at one end of an outlet of the combustion chamber; one end of the outlet pipeline is located on the inner side of the telescopic pipe and slidably connected with the telescopic pipe. The sleeve is fixedly connected with the combustion chamber, a fixing plate is connected to the sleeve, the gear is fixedly connected to the transmission rod, the transmission rod is rotationally connected with the fixing plate, a rack is connected to the telescopic pipe, the gear is located at a reserved opening in the sleeve, and the gear penetrates through the reserved opening and then is meshed with the rack on the inner side of the sleeve; and the telescopic pipe is connected with a medicine inlet pipe. The telescopic pipe is adjusted to extend or contract through the telescopic tail pipe assembly, so that the fogdrop particle size is changed, and the device is suitable for pest control of various agriculture and forestry crops and has a better control effect.

Description

Technical Field

[0001] The utility model relates to the field of drug application devices of pulse smoke machines, in particular to a smoke machine that uses a telescopic tail pipe structure to change the droplet size of fog droplets. Background Art

[0002] A pulse smoke machine utilizes the thermal energy, kinetic energy of the high-temperature gas generated by the operation of a pulse jet engine, and the heated metal surface to cause the liquid oil-soluble medicament to be violently evaporated and atomized. It uses the high-speed airflow to collide with the relatively static air outside, diffusing into smoke, which drifts with the natural airflow and thus permeates and diffuses to all parts of the prevention and control area. However, the droplet size of the smoke released by the smoke machine is fixed, and it is impossible to select different droplet sizes for different tree species, resulting in low utilization rate of pesticides and poor prevention and control effects. Considering the severity of current forestry pests and diseases and the need to meet the requirements of ecological environmental protection in pesticide application, a smoke machine that uses a telescopic tail pipe structure to change the droplet size of fog droplets is extremely meaningful. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a smoke machine that can change the droplet size of fog droplets for the deficiencies of the above-mentioned prior art. This smoke machine solves the problem that the droplet size of the smoke released by the existing smoke machine is fixed and it is impossible to select different droplet sizes for different tree species.

[0004] To achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0005] A smoke machine that can change the droplet size of fog droplets includes a carburetor assembly, a combustion chamber assembly, and a telescopic tail pipe assembly; the carburetor assembly is connected to the combustion chamber assembly, and the combustion chamber assembly is connected to the telescopic tail pipe assembly;

[0006] The telescopic tail pipe assembly includes a sleeve, a telescopic pipe, a rack, a gear, and a transmission rod; the combustion chamber assembly includes a combustion chamber;

[0007] One end of the outlet of the combustion chamber is provided with an outlet pipe; one end of the outlet pipe is located inside the telescopic pipe and the outlet pipe is slidably connected to the telescopic pipe; the sleeve is fixedly connected to the combustion chamber, a fixing plate is connected to the sleeve, the gear is fixedly connected to the transmission rod, the transmission rod is rotatably connected to the fixing plate, a rack is connected to the telescopic pipe, the gear is located at the reserved opening on the sleeve, and the gear penetrates through the reserved opening and meshes with the rack inside the sleeve; a medicine inlet pipe is connected to the telescopic pipe.

[0008] As a further improved technical solution of the utility model, a second pressure guiding pipe is connected to the combustion chamber, the second pressure guiding pipe is connected to an external medicine tank, and the external medicine tank is connected to the medicine inlet pipe.

[0009] As a further improved technical solution of the present utility model, the carburetor assembly includes a one-way air intake valve structure;

[0010] The one-way air intake valve structure includes a pump air pipe, a carburetor cover, a gasket and a carburetor housing; one end of the carburetor cover is connected to the carburetor housing, a pump air pipe is connected to the middle through hole of the carburetor cover, the gasket is arranged between the carburetor cover and the carburetor housing, and a plurality of air inlets are arranged on the surface of the carburetor cover; an oil inlet is arranged on the carburetor housing.

[0011] As a further improved technical solution of the present utility model, the one-way air intake valve structure further includes a spacer ring, a plurality of holes are arranged on the spacer ring, and the spacer ring is sleeved on the pump air pipe; a stop block is fixedly connected to the pump air pipe, the pump air pipe penetrates through the middle through hole of the carburetor cover and the stop block contacts the outer surface of the carburetor cover through a flat gasket, a convex ring is arranged around the inner side of the middle through hole of the carburetor cover, the gasket is sleeved on the convex ring and can move on the convex ring, a nut is threadedly connected to the pump air pipe, and the nut locks the spacer ring on the convex ring through a spring washer and a washer, and further locks the carburetor cover to the stop block on the pump air pipe through the flat gasket.

[0012] As a further improved technical solution of the present utility model, the oil inlet is connected with a pipe joint, and the pump air pipe is connected with an external air pump.

[0013] As a further improved technical solution of the present utility model, the carburetor assembly further includes an oil inlet adjustment structure, the oil inlet adjustment structure includes a knob, a spring and an adjustment rod, a convex interface is arranged on the carburetor housing, one end of the adjustment rod extends into the interior of the carburetor housing through a through hole in the convex interface and points to the oil inlet, a retaining ring is arranged around the outside of the adjustment rod, a spring is sleeved on the outside of the adjustment rod, the spring is located between the retaining ring and the inner plane of the through hole of the convex interface, the outside of the adjustment rod is slidably and rotatably connected with a knob, the knob is located above the retaining ring and the knob contacts the retaining ring, and one end of the knob is threadedly connected to the convex interface; a button is also fixedly connected to the top of the adjustment rod.

[0014] As a further improved technical solution of the present utility model, the end of the adjustment rod is a conical structure.

[0015] As a further improved technical solution of the present utility model, an inlet housing is fixedly connected to the inlet of the combustion chamber, the inlet housing is connected to the carburetor housing, the inlet housing is connected with a first pressure guiding pipe, the first pressure guiding pipe is connected to an external fuel tank, and the external fuel tank is connected to the pipe joint connected to the oil inlet on the carburetor housing.

[0016] As a further improved technical solution of the present utility model, the transmission rod is connected to an external motor through a transmission shaft.

[0017] As a further improved technical solution of the present utility model, the combustion chamber assembly further includes a gland and a glass. The top opening of the combustion chamber is connected with a gland, and a window is provided in the middle of the gland, and the glass is connected to the window.

[0018] The beneficial effects of the present utility model are as follows:

[0019] The present utility model is a sprayer that uses a telescopic tail pipe structure to change the droplet size. The sprayer adjusts the length of the tail pipe through a telescopic tail pipe assembly, thereby changing the particle size of the smoke outlet, and is applicable to the prevention and control of pests and diseases of various agricultural and forestry crops, improving the utilization rate of pesticides.

[0020] When the smoke machine is started, an external air pump pumps air into the pump air pipe to supply air to the carburetor housing respectively and pressurize the external fuel tank through a pressure guiding pipe pair. External air rushes into the carburetor housing at high speed through the pump air pipe. The oil mixes with the air in the carburetor housing to form a combustible mixture, which flows through the combustion chamber. A high-voltage electric current is generated by a spark plug located there, generating a high-voltage electric arc to ignite the mixture. The mixture ignites and "explodes", and the flame quickly spreads to the entire combustion chamber. The high-temperature hot flue gas expands rapidly, causing the pressure in the combustion chamber to suddenly increase. The high-pressure gas generated presses on the gasket on the carburetor, thereby making the gasket seal the air inlet on the carburetor cover, such as an intake one-way diaphragm. The hot air flow after combustion is discharged at a very high speed through the telescopic pipe. At the same time, the second pressure guiding pipe on the combustion chamber continuously introduces the high-pressure air flow greater than the atmospheric pressure in the combustion stage in the combustion chamber into the external medicine box. The liquid medicine in the external medicine box automatically flows into the telescopic pipe from the medicine inlet pipe. Under the disturbance of the high-temperature, high-frequency, and ultra-high-speed turbulent air flow in the telescopic pipe, the liquid medicine cracks, breaks, and evaporates into fine droplets to form smoke, which quickly diffuses and rises to the prevention and control area, thereby realizing the functions of improving the atomization effect by increasing the gas flow rate, increasing the spraying speed and range. The present utility model can start an external motor. The external motor drives the transmission rod to rotate through the transmission shaft, and then drives the gear to rotate. The gear drives the telescopic pipe to move along the outlet pipe through the rack, thereby realizing elongation and shortening, and then being able to change the length of the tail pipe (i.e., the overall of the inlet pipe and the telescopic pipe), thereby changing the particle size of the droplet outlet, further conforming to the optimal biological particle size of different agricultural and forestry crops and enhancing the prevention and control effect. When the tail pipe extends, the medicine outlet is far from the combustion chamber, and the temperature and speed of the high-temperature and high-pressure gas generated by pulse combustion decay with the distance, thereby resulting in a weakened effect of the gas on breaking the liquid medicine and making the droplet size larger; when the tail pipe shortens, the medicine outlet is close to the combustion chamber, and the temperature and speed of the high-temperature and high-pressure gas generated by pulse combustion are higher, and the gas breaks the liquid medicine sufficiently, making the droplet size smaller. Description of the Drawings

[0021] Figure 1 It is a three-dimensional view of the smoke machine of the present utility model.

[0022] Figure 2 This is a perspective view of the smoke machine of the present utility model.

[0023] Figure 3 This is a front view of the smoke machine of the present utility model.

[0024] Figure 4 It is Figure 3 The sectional view taken along line A-A in

[0025] Figure 5 It is Figure 3 The sectional view taken along line B-B in Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] As Figure 1-2 shown, a smoke machine capable of changing the droplet size includes a carburetor assembly, a combustion chamber assembly 3, and a telescopic tail pipe assembly 4; the carburetor assembly is connected to the combustion chamber assembly 3, and the combustion chamber assembly 3 is connected to the telescopic tail pipe assembly 4.

[0028] As Figure 1-4 shown, the telescopic tail pipe assembly 4 includes a sleeve 403, a telescopic pipe 401, a rack 408, a gear 406, and a transmission rod 405; the combustion chamber assembly 3 includes a combustion chamber 301.

[0029] As Figure 4 shown, one end of the outlet of the combustion chamber 301 is fixedly connected to an outlet pipe 307; one end of the outlet pipe 307 is located inside the telescopic pipe 401 and the outlet pipe 307 is slidably connected to the telescopic pipe 401; the sleeve 403 is hermetically and fixedly connected to the combustion chamber 301, the outlet pipe 307 is located in the internal space of the sleeve 403, a fixing plate 404 is connected to the sleeve 403 by bolts, the gear 406 is fixedly connected to the transmission rod 405, the transmission rod 405 is rotatably connected to the fixing plate 404 through a bearing, a rack 408 is fixedly connected to the outer surface of the telescopic pipe 401, the gear 406 is located at a reserved opening on the sleeve 403, and after the gear 406 passes through the reserved opening, it meshes with the rack 408 inside the sleeve 403; a medicine inlet pipe 402 is fixedly connected to the telescopic pipe 401.

[0030] In this embodiment, a second pressure guiding pipe 304 is connected to the combustion chamber 301, the second pressure guiding pipe 304 is connected to an external medicine tank, and the external medicine tank is connected to the medicine inlet pipe 402.

[0031] In this embodiment, the carburetor assembly includes a one-way air intake valve structure 1 and an oil inlet adjustment structure 2.

[0032] As Figure 5 shown, the one-way air intake valve structure 1 includes a pump air pipe 101, a carburetor cover 102, a gasket 105 and a carburetor housing 103; the carburetor cover 102 is threadedly connected or connected by screws to one end of the carburetor housing 103, a pump air pipe 101 is connected to the central through hole of the carburetor cover 102, the gasket 105 is arranged between the carburetor cover 102 and the carburetor housing 103, and a plurality of air inlets 1021 are provided on the surface of the carburetor cover 102; an oil inlet 1031 is provided on the carburetor housing 103.

[0033] In this embodiment, as Figure 5 shown, a stop block 1011 is fixedly connected to the pump air pipe 101, the pump air pipe 101 passes through the central through hole of the carburetor cover 102 and the stop block 1011 contacts the outer surface of the carburetor cover 102 through a flat gasket 109, a convex ring 1022 is arranged around the inner side of the central through hole of the carburetor cover 102, the gasket 105 is sleeved on the convex ring 1022, and the gasket 105 can move on the convex ring 1022. A nut 107 is threadedly connected to the pump air pipe 101, and the nut 107 locks a spacer ring 106 on the convex ring 1022 through a spring washer 108, thereby locking the carburetor cover 102 to the stop block 1011 on the pump air pipe 101 through the flat gasket 109. A plurality of holes are provided on the spacer ring 106, and the spacer ring 106 is located between the carburetor cover 102 and the carburetor housing 103. The gasket 105 can move in a small gap between the carburetor cover 102 and the spacer ring 106, that is, the gasket 105 can block all the air inlets 1021 on the carburetor cover 102 or open the air inlets 1021 on the carburetor cover 102 under the action of air pressure. When the air inlets 1021 are opened, the air inlets 1021 can intake air.

[0034] In this embodiment, the oil inlet 1031 is connected to a pipe joint 104, and the pump air pipe 101 is connected to an external air pump. The external air pump is connected to a power supply.

[0035] In this embodiment, the fuel inlet adjustment structure 2 in the carburetor assembly includes a knob 202, a spring 203, and an adjustment rod 204. A raised interface 1032 is provided on the carburetor housing 103. One end of the adjustment rod 204 extends into the interior of the carburetor housing 103 through a through hole in the raised interface 1032 and points to the fuel inlet 1031. A retaining ring 2041 is provided around the outside of the adjustment rod 204. A spring 203 is sleeved on the outside of the adjustment rod 204. The spring 203 is located between the retaining ring 2041 and a gasket on the inner plane 10321 of the through hole of the raised interface 1032. A knob 202 is slidably and rotatably connected to the outside of the adjustment rod 204. The knob 202 is located above the retaining ring 2041 and the knob 202 contacts the retaining ring 2041. One end of the knob 202 is threadedly connected to the raised interface 1032. A button 201 is also fixedly connected to the top of the adjustment rod 204. The end of the adjustment rod 204 is a conical structure. The knob 202 includes a knob body and a plug. The knob body is connected to the plug by a tightening screw. The upper part of the plug is located inside the knob body. The plug is sleeved on the outside of the adjustment rod 204. The plug is slidably and rotatably connected to the adjustment rod 204. The plug contacts the retaining ring 2041 on the adjustment rod 204. The lower part of the plug is threadedly connected to the raised interface 1032.

[0036] When the fuel inlet adjustment structure 2 is in use, the button 201 can be manually pressed to press the adjustment rod 204. The adjustment rod 204 moves downward inside the knob 202 to block part of the fuel inlet 1031, realizing manual adjustment of the size of the fuel inlet 1031 to adjust the fuel supply. After releasing the hand, the adjustment rod 204 resets under the action of the spring 203. It is also possible to rotate the knob 202. The knob 202 rotates downward inside the raised interface 1032. One end of the knob 202 presses down the retaining ring 2041 of the adjustment rod 204, thereby pressing down the adjustment rod 204. The adjustment rod 204 compresses the spring 203 downward and then moves downward to block part of the fuel inlet 1031. After adjusting to the required position, the rotation of the knob 202 is stopped. When the knob 202 rotates in the reverse direction, the adjustment rod 204 moves upward under the action of the spring 203, and the size of the fuel inlet 1031 can be increased. After fuel enters the fuel inlet 1031, under the action of the air rushing into the interior of the carburetor housing 103 at high speed, the fuel mixes with the air inside the carburetor housing 103 to form a combustible mixture and flows through the combustion chamber 301.

[0037] In this embodiment, an inlet housing 305 is fixedly connected to the inlet of the combustion chamber 301. The inlet housing 305 is connected to the carburetor housing 103. The inlet housing 305 is connected to a first pressure guiding pipe 306. The first pressure guiding pipe 306 is connected to an external fuel tank. The external fuel tank is communicated with an external fuel tank float chamber. The external fuel tank float chamber is connected to a pipe joint 104 connected to the fuel inlet 1031 on the carburetor housing 103.

[0038] In this embodiment, both ends of the transmission rod 405 are connected to the transmission shaft 407, and the transmission shaft 407 is connected to an external motor. The external motor is connected to a power supply.

[0039] In this embodiment, the combustion chamber assembly 3 further includes a gland 302 and a glass 303. The top opening of the combustion chamber 301 is connected to the gland 302, and a window is provided in the middle of the gland 302 and the glass 303 is connected to the window. The glass 303 facilitates observing the combustion condition inside the combustion chamber 301.

[0040] In this embodiment, the carburetor cover 102 and the carburetor housing 103, the carburetor housing 103 and the inlet housing 305 of the combustion chamber 301, and between the combustion chamber 301 and the gland 302 can all be connected by screws and nuts; a spark plug is provided at the inlet housing 305.

[0041] Such as Figure 1-2As shown in the figure, when the smoke machine of the present utility model starts, the external air pump pumps air to supply air inside the carburetor housing 103 through the pump air pipe 101. The gas then passes through the pressure guiding pipe 1 of the inlet housing 305, and pressurizes the external fuel tank through the pressure guiding pipe 1 and the pipeline. The oil (gasoline) in the float chamber of the external fuel tank enters the inside of the carburetor housing 103 through the pipe joint 104 and the fuel inlet 1031. The external air pump rushes the external air into the inside of the carburetor housing 103 at a high speed through the pump air pipe 101. The oil mixes with the air inside the carburetor housing 103 to form a combustible mixture (containing gasoline particles) and flows through the combustion chamber 301. A high voltage is generated by the spark plug located at the inlet housing 305, and a high voltage arc is released to ignite the mixture. The mixture ignites and "explodes", and the flame quickly spreads to the entire combustion chamber 301. The high-temperature hot flue gas expands rapidly, causing the pressure in the combustion chamber 301 and the outlet pipe 307 to suddenly increase. The generated high-pressure gas makes the gasket 105 tightly adhere to the carburetor cover 102 to seal the air inlet 1021 on the carburetor cover 102. The hot air flow after combustion is discharged at a very high speed through the outlet pipe 307 and the telescopic pipe 401. After the hot air flow after combustion is discharged from the telescopic pipe 401, the pressure in the combustion chamber 301 drops, and the gasket 105 opens the air inlet 1021 on the carburetor cover 102. Air starts to enter through the air inlet 1021 on the carburetor cover 102, that is, the carburetor housing 103 starts to inhale air. The oil mixes with the air entering through the air inlet 1021 inside the carburetor housing 103 to form a combustible mixture. As the pressure in the combustion chamber 301 further drops, the hot air flow in the telescopic pipe 401 changes from discharging outward to intake air inside the pipe. The combustible mixture just entering the combustion chamber 301 is further compressed and ignited again. Thus, a cyclic process of periodic intake - combustion - emission is formed. At the same time, the pressure guiding pipe 2 304 on the combustion chamber 301 continuously introduces the high-pressure air flow greater than the atmospheric pressure in the combustion stage inside the combustion chamber 301 into the external medicine box. The liquid medicine in the external medicine box automatically flows into the telescopic pipe 401 from the medicine inlet pipe 402. Under the disturbance of the high-temperature, high-frequency, and ultra-high-speed turbulent air flow in the telescopic pipe 401, the liquid medicine cracks, breaks, and evaporates into fine droplets to form smoke, which quickly diffuses and rises to the prevention and control area. After the first combustion "explosion", the external air pump can stop supplying air to the pump air pipe 101 (specifically set according to the actual situation). The gas required in the subsequent cyclic combustion process is realized by intake air through the air inlet 1021 on the carburetor cover 102. In the subsequent cyclic combustion process, the high-pressure air flow greater than the atmospheric pressure in the combustion stage can also be introduced into the external fuel tank through the pressure guiding pipe 1 306 to pressurize the external fuel tank, so that the float chamber of the external fuel tank supplies oil to the fuel inlet 1031 through the pipe joint 104.

[0042] The utility model can start an external motor. The external motor drives the transmission rod 405 to rotate through the transmission shaft 407, and then drives the gear 406 to rotate. The gear 406 drives the telescopic pipe 401 to move along the outlet pipe 307 through the rack 408, so as to realize elongation and shortening. Furthermore, by changing the length of the tail pipe (i.e., the whole of the inlet pipe and the telescopic pipe 401), the particle size of the droplet outlet can be changed, further conforming to the optimal biological particle size of different agricultural and forestry crops and enhancing the control effect. When the tail pipe extends, the medicine outlet is far from the combustion chamber 301, and the temperature and speed of the high-temperature and high-pressure gas generated by pulse combustion decay with the distance. As a result, the effect of the gas on breaking the liquid medicine is weakened, making the droplet particle size larger. When the tail pipe shortens, the medicine outlet is close to the combustion chamber 301, and the temperature and speed of the high-temperature and high-pressure gas generated by pulse combustion are higher. The gas breaks the liquid medicine sufficiently, making the particle size smaller.

[0043] The protection scope of the utility model includes, but is not limited to, the above embodiments. The protection scope of the utility model shall be subject to the claims. Any replacement, deformation, and improvement that are easily conceivable by those skilled in the art to this technology shall fall within the protection scope of the utility model.

Claims

1. A fog machine capable of changing the droplet size, characterized in that, It includes a carburetor assembly, a combustion chamber assembly (3) and a telescopic tailpipe assembly (4); the carburetor assembly is connected to the combustion chamber assembly (3), and the combustion chamber assembly (3) is connected to the telescopic tailpipe assembly (4). The telescopic tailpipe assembly (4) includes a sleeve (403), a telescopic pipe (401), a rack (408), a gear (406) and a transmission rod (405); the combustion chamber assembly (3) includes a combustion chamber (301). An outlet pipe (307) is provided at one end of the outlet of the combustion chamber (301); one end of the outlet pipe (307) is located inside the telescopic pipe (401) and the outlet pipe (307) is slidably connected to the telescopic pipe (401); the sleeve (403) is fixedly connected to the combustion chamber (301), a fixing plate (404) is connected to the sleeve (403), the gear (406) is fixedly connected to the transmission rod (405), the transmission rod (405) is rotatably connected to the fixing plate (404), a rack (408) is connected to the telescopic pipe (401), the gear (406) is located at a reserved opening on the sleeve (403), and after passing through the reserved opening, the gear (406) meshes with the rack (408) inside the sleeve (403); a medicine inlet pipe (402) is connected to the telescopic pipe (401).

2. The fog machine capable of changing the droplet size according to claim 1, wherein A second pressure guiding pipe (304) is connected to the combustion chamber (301), the second pressure guiding pipe (304) is connected to an external medicine tank, and the external medicine tank is connected to the medicine inlet pipe (402).

3. The fog machine capable of changing the droplet size according to claim 1, characterized in that, The carburetor assembly includes a one-way air intake valve structure (1). The one-way air intake valve structure (1) includes a pump air pipe (101), a carburetor cover (102), a gasket (105) and a carburetor housing (103); the carburetor cover (102) is connected to one end of the carburetor housing (103), a pump air pipe (101) is connected to a through hole in the middle of the carburetor cover (102), the gasket (105) is arranged between the carburetor cover (102) and the carburetor housing (103), and a plurality of air inlets (1021) are provided on the surface of the carburetor cover (102); an oil inlet (1031) is provided on the carburetor housing (103).

4. The fog machine capable of changing the droplet size according to claim 3, characterized in that, The one-way intake valve structure (1) further includes a spacer ring (106) provided with a plurality of holes, and the spacer ring (106) is sleeved on the pump air pipe (101); a stop block (1011) is fixedly connected to the pump air pipe (101), the pump air pipe (101) penetrates through the central through hole of the carburetor cover (102), and the stop block (1011) contacts the outer surface of the carburetor cover (102) through a flat gasket (109). A convex ring (1022) is provided around the inner side of the central through hole of the carburetor cover (102), and a sealing gasket (105) is sleeved on the convex ring (1022) and can move on the convex ring (1022). A nut (107) is threadedly connected to the pump air pipe (101), and the nut (107) locks the spacer ring (106) on the pump air pipe (101) to the convex ring (1022) through a spring washer (108) and a washer, thereby locking the carburetor cover (102) to the stop block (1011) on the pump air pipe (101) through the flat gasket (109).

5. The fog machine capable of changing the droplet size according to claim 3, characterized in that, The fuel inlet (1031) is connected to a pipe joint (104), and the pump air pipe (101) is connected to an external air pump.

6. The fog machine capable of changing the droplet size according to claim 3, characterized in that, The carburetor assembly further includes a fuel inlet adjustment structure (2), which includes a knob (202), a spring (203), and an adjustment rod (204). A raised interface (1032) is provided on the carburetor housing (103). One end of the adjustment rod (204) extends into the interior of the carburetor housing (103) through a through hole in the raised interface (1032) and points to the fuel inlet (1031). A retaining ring (2041) is provided around the outside of the adjustment rod (204), and a spring (203) is sleeved on the outside of the adjustment rod (204). The spring (203) is located between the retaining ring (2041) and the inner plane (10321) of the through hole of the raised interface (1032). A knob (202) is slidably and rotatably connected to the outside of the adjustment rod (204). The knob (202) is located above the retaining ring (2041) and contacts the retaining ring (2041). One end of the knob (202) is threadedly connected to the raised interface (1032); a button (201) is also fixedly connected to the top of the adjustment rod (204).

7. The fog machine capable of changing the droplet size according to claim 6, characterized in that, The end of the adjustment rod (204) is a conical structure.

8. The fog machine capable of changing the droplet size according to claim 1, characterized in that An inlet housing (305) is fixedly connected to the inlet of the combustion chamber (301). The inlet housing (305) is connected to the carburetor housing (103). The inlet housing (305) is connected to a first pressure guiding pipe (306), and the first pressure guiding pipe (306) is connected to an external fuel tank. The external fuel tank float chamber is connected to the pipe joint (104) connected to the fuel inlet (1031) on the carburetor housing (103).

9. The fog machine capable of changing the droplet size according to claim 1, characterized in that, The transmission rod (405) is connected to an external motor through a transmission shaft (407).

10. The smoke machine capable of changing the droplet size according to claim 1, characterized in that, The combustion chamber assembly (3) further includes a gland (302) and a glass (303). The top opening of the combustion chamber (301) is connected to the gland (302). A window is provided in the middle of the gland (302), and the glass (303) is connected to the window.

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