Automatic beer bottle cleaning machine

Abstract

The invention belongs to the technical field of beer bottle cleaning equipment, and particularly discloses an automatic beer bottle cleaning machine which comprises a rack, a liquid storage tank is arranged at the bottom of the rack, and a conveying mechanism located above the liquid storage tank is arranged on the inner side of the rack; by arranging the cleaning module, it is guaranteed that the interiors and the surfaces of beer bottles are well washed, meanwhile, air flow can be injected into the beer bottles in the conveying process to pump out residual cleaning water in the beer bottles, the residual cleaning water in the bottles is reduced, follow-up treatment is facilitated, the interiors of the bottles can be further dried after the cleaning water is pumped out, and the service life of the beer bottles is prolonged. According to the bottle washing device, internal residual water is further cleaned, so that the treatment effect on the residual water in the bottle is greatly improved, the treatment of a subsequent process is facilitated, the condition that the internal residual water after washing of existing equipment is not beneficial to the treatment of the subsequent process and needs to be pumped out by using other equipment independently is avoided, and the occupied area of an assembly line is effectively reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of beer bottle cleaning equipment, and specifically discloses an automatic beer bottle cleaning machine. Background Technology

[0002] In the beer production industry, the cleanliness of bottled containers directly affects product quality and food safety. Traditional beer bottle cleaning processes rely heavily on manual labor or semi-automated equipment, resulting in low cleaning efficiency, high labor costs, and difficulty in thoroughly cleaning hard-to-reach areas. While some automatic cleaning devices exist in existing technologies due to increasing demands for production line automation, their functionality and adaptability still have significant shortcomings. Existing cleaning equipment mainly uses spray pipes to rinse the surface and interior of beer bottles. However, after rinsing, residual cleaning water remains inside the beer bottle, which is not conducive to subsequent processing. Therefore, those skilled in the art have provided an automatic beer bottle cleaning machine to solve the above-mentioned problems. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide an automatic beer bottle cleaning machine to solve the problem that residual cleaning water inside the beer bottle after rinsing by existing equipment is not conducive to subsequent processing.

[0004] To achieve the above objectives, the present invention provides an automatic beer bottle cleaning machine, including a frame, a liquid storage tank at the bottom of the frame, a conveying mechanism located above the liquid storage tank on the inner side of the frame, a transmission mechanism inside the frame, a cleaning module designed on the surface of the transmission mechanism, a first water pump connected to one side of the liquid storage tank, a connecting pipe connected to the outlet of the first water pump, and the conveying mechanism for conveying beer bottles. The cleaning module includes several cleaning structures disposed on the surface of the transmission mechanism, and a driving structure is disposed on the inner side of the transmission mechanism.

[0005] In the above technical solution, preferably, the cleaning structure includes a plurality of fixed cylinders fixedly connected to the outside of the transmission mechanism. An adjusting tube is slidably connected to the inner wall of the fixed cylinder. One end of the adjusting tube passes through the fixed cylinder and is fixedly connected to an installation ring. A first spring is fixedly connected to the top of the installation ring. The upper end of the first spring passes through the fixed cylinder and is fixedly connected to the inner wall of the fixed cylinder.

[0006] In the above technical solution, preferably, the other end of the adjusting tube passes through the fixed cylinder and the transmission mechanism in sequence and is fixedly connected to the mounting block. The surface of the mounting block is fixedly connected with symmetrically distributed connecting rods, and two adjacent mounting blocks are connected by the connecting rods.

[0007] In the above technical solution, preferably, the inside of the regulating tube is provided with an injection channel coaxially arranged with the regulating tube, the inside of the regulating tube is provided with annularly distributed exhaust channels, the surface of the mounting block is provided with a connecting hole communicating with the injection channel, and the surface of the mounting block is provided with a connecting cavity communicating with the exhaust channel.

[0008] In the above technical solution, preferably, the cleaning structure further includes two sets of guide plates that are fixedly connected to the inner side of the frame and symmetrically distributed. Each set of guide plates consists of two plates, and a guide groove is formed between two adjacent guide plates. The inner wall of the guide groove can be used to guide the connecting rod, and the middle part of the guide plate is recessed downward to form a first adjustment area, and the interior of the first adjustment area is recessed downward to form a second adjustment area.

[0009] In the above technical solution, preferably, the drive structure includes a mounting shell fixedly connected to the inner side of the frame. The interior of the mounting shell is provided with a liquid injection chamber, a water pumping chamber, an air inlet chamber, and an exhaust chamber in sequence along the conveying direction of the beer bottle. One end of the connecting pipe extends to the top of the mounting shell, and the surface of the connecting pipe is connected to a uniformly distributed liquid injection pipe. The lower end of the liquid injection pipe is connected to the liquid injection chamber. The bottom of the mounting shell is provided with uniformly distributed drain holes that are connected to the liquid injection chamber. The drain holes match the connecting holes. The bottom of the mounting shell is provided with uniformly distributed drain outlets that are connected to the water pumping chamber. The bottom of the mounting housing forms a protrusion that matches the second adjustment area, and the surface of the protrusion is provided with evenly distributed return holes that communicate with the drain port, and the return holes match the connection holes. A second water pump is provided on the top of the mounting housing. The inlet of the second water pump is connected to the pumping chamber, and the outlet of the second water pump is connected to a return pipe connected to the connecting pipe. A one-way valve is provided inside the return pipe.

[0010] In the above technical solution, preferably, an air pump is provided on the top of the mounting shell, the air pump's inlet end is connected to an air inlet pipe, the other end of the air inlet pipe is connected to an air inlet chamber, the air pump's outlet end is connected to an exhaust pipe, the other end of the exhaust pipe is connected to an exhaust chamber, the bottom of the mounting shell has evenly distributed exhaust holes that are connected to the exhaust chamber, and the bottom of the mounting shell has evenly distributed air inlet holes that are connected to the air inlet chamber, and both the air inlet holes and the exhaust holes are matched with the connecting cavity.

[0011] In the above technical solution, preferably, the mounting shell has an internal mounting cavity, the mounting cavity is coaxially arranged with the exhaust pipe, and the mounting cavity is provided with an electric heating tube that contacts the surface of the exhaust pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects: By setting up a cleaning module, while ensuring good rinsing of the inside and surface of beer bottles, airflow can be injected into the beer bottles during the conveying process to extract residual cleaning water inside, reducing the amount of residual cleaning water inside the bottles, which is beneficial for subsequent processing. Furthermore, after rinsing out the cleaning water, the inside of the bottles can be further dried to remove any remaining water, greatly improving the treatment effect of residual water inside the bottles. This facilitates subsequent processes and avoids the situation where existing equipment requires the use of other equipment to extract water after rinsing, which is not conducive to subsequent processing. This also effectively reduces the floor space occupied by the production line. By setting up a cleaning module, the airflow can be heated by an electric heating element. During the flushing process, the heat can be used to extract and dry the residual water in the bottle, thus improving the cleaning effect of the residual water in the bottle. By lowering the regulating tube, it can be inserted into the beer bottle from the bottle opening. The connecting rod allows the regulating tubes in the same group to move synchronously, achieving simultaneous cleaning of beer bottles in the same row. After the regulating tube is inserted into the beer bottle, cleaning water can be injected into the injection channel through the connecting hole. The cleaning water can then be injected into the inside of the beer bottle to clean the inside. Compared with the traditional spraying method, this method has a better rinsing effect and can effectively clean from the inside. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial cross-sectional schematic diagram of the present invention; Figure 3 This is a schematic diagram showing the connection between the connecting rod and the mounting block of the present invention; Figure 4 This is a cross-sectional schematic diagram of the regulating tube of the present invention; Figure 5 This is a schematic diagram showing the distribution of the guide plate and mounting shell of the present invention; Figure 6 This is a cross-sectional schematic diagram of the mounting shell of the present invention; Figure 7 This is a schematic diagram showing the distribution of the guide plate of the present invention.

[0014] In the diagram: 1. Frame; 101. Liquid storage tank; 102. First water pump; 103. Connecting pipe; 2. Conveying mechanism; 3. Cleaning module; 301. Adjusting pipe; 302. First spring; 303. Mounting ring; 304. Fixing cylinder; 305. Mounting block; 306. Liquid injection channel; 307. Connecting hole; 308. Exhaust channel; 309. Connecting cavity; 310. Guide plate; 311. Mounting shell; 31 2. Air pump; 313. Air inlet pipe; 314. Air inlet chamber; 315. Air inlet hole; 316. Exhaust hole; 317. Exhaust pipe; 318. Heating element; 319. Liquid injection pipe; 320. Exhaust chamber; 321. Liquid injection chamber; 322. Drain hole; 323. Connecting rod; 324. Water pumping chamber; 325. Second water pump; 326. Return pipe; 327. Return hole; 328. Protrusion; 4. Transmission mechanism. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0017] like Figures 1-7 An automatic beer bottle cleaning machine is shown, including a frame 1, a liquid storage tank 101 at the bottom of the frame 1, a conveying mechanism 2 located above the liquid storage tank 101 on the inner side of the frame 1, a transmission mechanism 4 inside the frame 1, a cleaning module 3 designed on the surface of the transmission mechanism 4, a first water pump 102 connected to one side of the liquid storage tank 101, a connecting pipe 103 connected to the outlet of the first water pump 102, and the conveying mechanism 2 is used to convey beer bottles. The cleaning module 3 includes several cleaning structures disposed on the surface of the transmission mechanism 4, and a drive structure is disposed on the inner side of the transmission mechanism 4.

[0018] Specifically, the transmission mechanism 4 consists of two transmission wheels, a transmission belt, and a drive motor. By driving one of the transmission wheels to rotate through the drive motor, the other transmission wheel can be rotated synchronously through the transmission belt. In this process, the position of the cleaning structure can be adjusted. The conveying mechanism 2 is a relatively mature component in existing technology applications. It can be a chain plate conveyor belt. The gaps in the chain plate conveyor belt allow the dripping clean water to fall into the storage tank 101 for storage and reuse. Other conveying methods can also be used, but corresponding through holes should be opened to ensure the dripping of clean water.

[0019] like Figures 1-7As shown, the cleaning structure includes several fixed cylinders 304 fixedly connected to the outside of the transmission mechanism 4. An adjusting tube 301 is slidably connected to the inner wall of the fixed cylinder 304. One end of the adjusting tube 301 passes through the fixed cylinder 304 and is fixedly connected to an mounting ring 303. A first spring 302 is fixedly connected to the top of the mounting ring 303. The upper end of the first spring 302 passes through the fixed cylinder 304 and is fixedly connected to the inner wall of the fixed cylinder 304.

[0020] The other end of the regulating pipe 301 passes through the fixed cylinder 304 and the transmission mechanism 4 in sequence and is fixedly connected to the mounting block 305. The surface of the mounting block 305 is fixedly connected with symmetrically distributed connecting rods 323, and two adjacent mounting blocks 305 are connected by the connecting rods 323.

[0021] The regulating pipe 301 has an injection channel 306 coaxially arranged inside it, and an exhaust channel 308 distributed in an annular pattern inside it. The surface of the mounting block 305 has a connecting hole 307 communicating with the injection channel 306, and the surface of the mounting block 305 has a connecting cavity 309 communicating with the exhaust channel 308.

[0022] By lowering the regulating tube 301, it can be inserted into the beer bottle from the bottle opening. The connecting rod 323 enables the regulating tubes 301 in the same group to move synchronously, achieving synchronous cleaning of beer bottles in the same row. After the regulating tube 301 is inserted into the beer bottle, cleaning water can be injected into the liquid injection channel 306 through the connecting hole 307. The cleaning water can be injected into the beer bottle through the liquid injection channel 306 to clean the inside of the beer bottle. The connecting cavity 309 can work with the exhaust channel 308 to extract gas from the beer bottle or inject gas, which is beneficial for cleaning the cleaning water residue inside the beer bottle in conjunction with the drive structure.

[0023] like Figures 1-7 As shown, the cleaning structure also includes two sets of guide plates 310 that are fixedly connected to the inner side of the frame 1 and are symmetrically distributed. There are two guide plates 310 in each set, and a guide groove is formed between two adjacent guide plates 310. The inner wall of the guide groove can be used to guide the connecting rod 323. The middle part of the guide plate 310 is recessed downward to form a first adjustment area, and the interior of the first adjustment area is recessed downward to form a second adjustment area.

[0024] The two guide plates 310 can adjust the position of the adjusting tube 301 by guiding the connecting rod 323 during the movement of the fixed cylinder 304 driven by the transmission mechanism 4. During the downward movement of the adjusting tube 301, the first spring 302 can be stretched by the mounting ring 303. The first spring 302 can ensure the normal position of the adjusting tube 301, so that after the connecting rod 323 separates from the guide groove, it can drive the adjusting tube 301 to reset and pull it out of the beer bottle, so as not to affect the subsequent movement of the beer bottle. The guide groove can be used to adjust the up and down movement of the adjusting tube 301, so that it can be inserted into the beer bottle during cleaning and separated from the beer bottle after cleaning.

[0025] like Figures 1-7 As shown, the drive structure includes a mounting shell 311 fixedly connected to the inner side of the frame 1. The interior of the mounting shell 311 is provided with a liquid injection chamber 321, a water pumping chamber 324, an air inlet chamber 314 and an exhaust chamber 320 in sequence along the conveying direction of the beer bottle. One end of the connecting pipe 103 extends to the top of the mounting shell 311, and the surface of the connecting pipe 103 is connected to a uniformly distributed liquid injection pipe 319. The lower end of the liquid injection pipe 319 is connected to the liquid injection chamber 321. The bottom of the mounting shell 311 is provided with a uniformly distributed drain hole 322 that is connected to the liquid injection chamber 321. The drain hole 322 matches the connecting hole 307. The bottom of the mounting shell 311 is provided with a uniformly distributed drain outlet that is connected to the water pumping chamber 324. The bottom of the mounting housing 311 forms a protrusion 328 that matches the second adjustment area, and the surface of the protrusion 328 is provided with evenly distributed return holes 327 that are connected to the drain port. The return holes 327 match the connection holes 307. The top of the mounting housing 311 is provided with a second water pump 325. The inlet end of the second water pump 325 is connected to the pumping chamber 324. The outlet end of the second water pump 325 is connected to a return pipe 326 connected to the connecting pipe 103. A one-way valve is provided inside the return pipe 326.

[0026] An air pump 312 is provided on the top of the mounting housing 311. The air inlet end of the air pump 312 is connected to an air inlet pipe 313. The other end of the air inlet pipe 313 is connected to an air inlet chamber 314. The air outlet end of the air pump 312 is connected to an exhaust pipe 317. The other end of the exhaust pipe 317 is connected to an exhaust chamber 320. The bottom of the mounting housing 311 has evenly distributed exhaust holes 316 that are connected to the exhaust chamber 320. The bottom of the mounting housing 311 also has evenly distributed air inlets 315 that are connected to the air inlet chamber 314. Both the air inlets 315 and the exhaust holes 316 are matched with the connecting cavity 309.

[0027] The mounting housing 311 has an internal mounting cavity, which is coaxially arranged with the exhaust pipe 317, and an electric heating tube 318 is arranged inside the mounting cavity that is in contact with the surface of the exhaust pipe 317.

[0028] During the process of adjusting the position of the cleaning structure by using the transmission mechanism 4, the position of the adjusting pipe 301 can be changed by the setting of the guide groove, and the setting of the first water pump 102 can draw out the cleaning water stored in the storage tank 101 and inject it into the injection chamber 321 through the injection pipe 319 via the connecting pipe 103. During this process, the cleaning water is discharged through the drain hole 322. When the drain hole 322 is connected to the connecting hole 307, the cleaning water can be injected into the injection channel 306 through the connecting hole 307 to inject it into the inside of the beer bottle to achieve rinsing of the inside of the beer bottle. When the drain hole 322 is not connected to the connecting hole 307, the cleaning water can be discharged for cleaning the surface of the beer bottle, thus achieving cleaning of the inside and outside of the beer bottle and improving the cleaning effect. Under the action of the second adjustment zone, the adjustment tube 301 can be driven to get closer to the bottom of the bottle, and when the return hole 327 is connected to the connection hole 307, the water in the beer bottle can be drawn out by starting the second water pump 325, and the water can be introduced into the interior of the connection tube 103 for reuse through the second water pump 325 and the return tube 326. Furthermore, when the connecting cavity 309 on the mounting block 305 is connected to the exhaust port 316, the gas injected by the air pump 312 can be heated by the electric heating tube 318 and then injected into the interior of the beer bottle through the exhaust channel 308. The airflow can flush out the residual water vapor inside the beer bottle, and the hot airflow can heat and evaporate the tiny water droplets adhering to the inner wall of the beer bottle, reducing the residual water inside and facilitating subsequent processes. When the connecting cavity 309 on the mounting block 305 is connected to the air inlet 315, the air pump 312 can draw air from the inside of the dried beer bottle. During the air drawing process, some water vapor can be heated by the electric heating tube 318 along with the airflow, so it will not affect the drying process when it is discharged.

[0029] Working principle: The beer bottle is conveyed by the conveying mechanism 2 to the inside of the frame 1. During this process, the transmission mechanism 4 operates synchronously to ensure that the adjusting pipe 301 moves synchronously with the beer bottle, and the adjusting pipe 301 is coaxially set with the mouth of the beer bottle. During the adjustment of the position of the cleaning structure driven by the transmission mechanism 4, the position of the adjusting pipe 301 can be changed by the setting of the guide groove. The first water pump 102 can draw out the cleaning water stored in the liquid storage tank 101 and inject it into the liquid injection chamber through the liquid injection pipe 319 via the connecting pipe 103. Inside 321, during this process, cleaning water is discharged through the drain hole 322. When the drain hole 322 is connected to the connecting hole 307, cleaning water can be injected into the injection channel 306 through the connecting hole 307 to rinse the inside of the beer bottle. When the drain hole 322 is not connected to the connecting hole 307, cleaning water can be discharged for cleaning the surface of the beer bottle, achieving cleaning of both the inside and outside of the beer bottle and improving the cleaning effect. The first adjustment zone can adjust the position of the adjustment tube 301 so that it can be connected to the air inlet 315 respectively. The vent 316 and drain 322 are connected, and under the action of the second adjustment zone, the adjustment tube 301 can be driven to move closer to the bottom of the bottle. When the return hole 327 is connected to the connection hole 307, the water in the beer bottle can be drawn out by starting the second water pump 325, and this part of the water can be introduced into the interior of the connection tube 103 for reuse through the second water pump 325 and the return tube 326. When the connection cavity 309 on the mounting block 305 is connected to the vent 316, the gas injected by the air pump 312 can enter the heating tube 318 under the action of the heating tube. After heating, the gas is injected into the beer bottle through the exhaust channel 308. The airflow can flush out the residual water vapor inside the beer bottle, and the hot airflow can heat and evaporate the small water droplets adhering to the inner wall of the beer bottle, reducing the amount of water residue inside and facilitating subsequent processes. When the connecting cavity 309 on the mounting block 305 is connected to the air inlet 315, the air pump 312 can draw air from the inside of the beer bottle. During the air drawing process, some water vapor can be heated by the electric heating tube 318 along with the airflow, so it will not affect the drying process when it is discharged.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An automatic beer bottle cleaning machine, comprising a frame (1), characterized in that, The bottom of the frame (1) is provided with a liquid storage tank (101), and the inner side of the frame (1) is provided with a conveying mechanism (2) located above the liquid storage tank (101). The inside of the frame (1) is provided with a transmission mechanism (4), and the surface of the transmission mechanism (4) is designed with a cleaning module (3). One side of the liquid storage tank (101) is connected to a first water pump (102), and the outlet end of the first water pump (102) is connected to a connecting pipe (103). The conveying mechanism (2) is used to convey beer bottles. The cleaning module (3) includes several sets of cleaning structures disposed on the surface of the transmission mechanism (4), and the inner side of the transmission mechanism (4) is provided with a driving structure.

2. The automatic beer bottle cleaning machine according to claim 1, characterized in that, The cleaning structure includes several fixed cylinders (304) fixedly connected to the outside of the transmission mechanism (4). An adjusting tube (301) is slidably connected to the inner wall of the fixed cylinder (304). One end of the adjusting tube (301) passes through the fixed cylinder (304) and is fixedly connected to an mounting ring (303). A first spring (302) is fixedly connected to the top of the mounting ring (303). The upper end of the first spring (302) passes through the fixed cylinder (304) and is fixedly connected to the inner wall of the fixed cylinder (304).

3. The automatic beer bottle cleaning machine according to claim 2, characterized in that, The other end of the regulating tube (301) passes through the fixed cylinder (304) and the transmission mechanism (4) in sequence and is fixedly connected to the mounting block (305). The surface of the mounting block (305) is fixedly connected with symmetrically distributed connecting rods (323), and two adjacent mounting blocks (305) are connected by the connecting rods (323).

4. The automatic beer bottle cleaning machine according to claim 3, characterized in that, The regulating tube (301) has an injection channel (306) coaxially arranged inside it, and an exhaust channel (308) distributed in an annular pattern inside it. The mounting block (305) has a connecting hole (307) communicating with the injection channel (306) on its surface, and a connecting cavity (309) communicating with the exhaust channel (308) on its surface.

5. An automatic beer bottle cleaning machine according to claim 4, characterized in that, The cleaning structure also includes two sets of guide plates (310) that are fixedly connected to the inner side of the frame (1) and symmetrically distributed. Each set of guide plates (310) consists of two plates, and a guide groove is formed between two adjacent guide plates (310). The inner wall of the guide groove can be used to guide the connecting rod (323). The middle part of the guide plate (310) is recessed downward to form a first adjustment area, and the interior of the first adjustment area is recessed downward to form a second adjustment area.

6. An automatic beer bottle cleaning machine according to claim 4, characterized in that, The drive structure includes a mounting shell (311) fixedly connected to the inside of the frame (1). The interior of the mounting shell (311) is provided with a liquid injection chamber (321), a water pumping chamber (324), an air inlet chamber (314), and an exhaust chamber (320) in sequence along the conveying direction of the beer bottle. One end of the connecting pipe (103) extends to the top of the mounting shell (311), and the surface of the connecting pipe (103) is connected to a uniformly distributed liquid injection pipe (319). The lower end of the liquid injection pipe (319) is connected to the liquid injection chamber (321). The bottom of the mounting shell (311) is provided with a uniformly distributed drain hole (322) connected to the liquid injection chamber (321). The drain hole (322) matches the connecting hole (307). The bottom of the mounting shell (311) is provided with a uniformly distributed drain outlet connected to the water pumping chamber (324). The bottom of the mounting housing (311) forms a protrusion (328) that matches the second adjustment area, and the surface of the protrusion (328) is provided with uniformly distributed return holes (327) that are connected to the drain port. The return holes (327) match the connection holes (307). The top of the mounting housing (311) is provided with a second water pump (325). The inlet end of the second water pump (325) is connected to the pumping chamber (324). The outlet end of the second water pump (325) is connected to a return pipe (326) connected to the connecting pipe (103). A one-way valve is provided inside the return pipe (326).

7. An automatic beer bottle cleaning machine according to claim 6, characterized in that, An air pump (312) is provided on the top of the mounting housing (311). The air inlet end of the air pump (312) is connected to an air inlet pipe (313). The other end of the air inlet pipe (313) is connected to an air inlet chamber (314). The air outlet end of the air pump (312) is connected to an exhaust pipe (317). The other end of the exhaust pipe (317) is connected to an exhaust chamber (320). The bottom of the mounting housing (311) is provided with evenly distributed exhaust holes (316) that are connected to the exhaust chamber (320). The bottom of the mounting housing (311) is provided with evenly distributed air inlets (315) that are connected to the air inlet chamber (314). The air inlets (315) and exhaust holes (316) are both matched with the connecting cavity (309).

8. An automatic beer bottle cleaning machine according to claim 7, characterized in that, The mounting housing (311) has an internal mounting cavity, which is coaxially arranged with the exhaust pipe (317), and an electric heating tube (318) is provided inside the mounting cavity that is in contact with the surface of the exhaust pipe (317).

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