Food vinegar fermentation tank facilitating material addition

Abstract

The utility model discloses a food vinegar fermentation tank convenient to add material relates to food vinegar production technical field, including the fermentation tank body, the inside of fermentation tank body is equipped with the transmission pipe, be equipped with spiral plate on the mounting shaft, transmission pipe one end fixedly equipped with the discharge box, the discharge box upper end fixedly equipped with the sleeve shaft, the upper end of fermentation tank body is equipped with the drive assembly, the upper end intercommunication of fermentation tank body is equipped with the feeding pipe, the feeding pipe one end is equipped with the feeding mechanism, be equipped with the air inlet mechanism on the sleeve shaft. The utility model discloses through setting up transmission pipe, mounting shaft and spiral plate, and then make the food vinegar fermentation inside fermentation tank body circulates and turns over, and through setting up the distribution roller in the discharge box inside simultaneously, sets up a plurality of distribution grooves on the distribution roller, make convenient to add material in the process to the inside of fermentation tank body reduces the external gas and enters the inside of fermentation tank body, through setting up the air inlet mechanism, make convenient to send oxygen to the inside of fermentation tank body.

Description

Technical Field

[0001] This utility model relates to the field of vinegar production technology, specifically a vinegar fermentation tank that is easy to add materials to. Background Technology

[0002] Vinegar is a fermented, acidic liquid condiment, mostly made from glutinous rice, sorghum, rice, corn, wheat, as well as sugars and alcohols. In modern vinegar brewing technology, the raw materials are first steamed, gelatinized, liquefied, and saccharified to convert starch into sugar. Then, yeast is used to ferment and produce ethanol. Finally, under the action of acetic acid bacteria, the ethanol is fermented and oxidized to produce acetic acid. In addition to acetic acid, brewed vinegar also contains a variety of amino acids and many other trace substances.

[0003] The existing authorization announcement number is CN217868781U, which discloses a vinegar fermentation device. This device consists of a fermentation tank, a stirring device, and an exhaust device. The stirring device includes a drive motor mounted on the fermentation tank and a spiral stirrer mounted inside the fermentation tank. The spiral stirrer is a hollow steel pipe, and detachable stirring blades are provided on the outer side of the straight section of the bottom steel pipe. However, when adding materials to the tank during the fermentation process, the lid needs to be opened before adding materials. In addition to oxygen, the air also contains a large number of impurities and bacteria that are not conducive to vinegar fermentation. This makes it difficult for the device to avoid contact between the vinegar and impurities in the air during the fermentation process, which is not conducive to adding materials to the tank during the fermentation process.

[0004] Based on this, a vinegar fermentation tank that is easy to add materials is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a vinegar fermentation tank that is easy to add materials to, so as to solve the problem in the prior art of inconvenience in adding materials to the tank and keeping the tank sealed.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vinegar fermentation tank with easy material feeding includes a fermentation tank body. A drain pipe and a slag discharge pipe are connected to the bottom of the fermentation tank body. A transmission pipe is provided inside the fermentation tank body. An installation shaft is coaxially mounted inside the transmission pipe. A spiral plate is fixedly mounted on the installation shaft at a position corresponding to the inside of the transmission pipe. The spiral plate is in close contact with the inside of the transmission pipe. A discharge box is fixedly mounted at one end of the transmission pipe. A sleeve shaft is fixedly mounted at the upper end of the discharge box. A drive assembly for rotating the transmission pipe and the installation shaft is provided at the upper end of the fermentation tank body. A feeding pipe is connected to the upper end of the fermentation tank body. A feeding mechanism for uniformly feeding materials into the fermentation tank is connected to one end of the feeding pipe. An air intake mechanism for supplying oxygen into the fermentation tank is provided on the sleeve shaft.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: a baffle is slidably mounted on the slag discharge pipe, the baffle is fixedly connected to the output ends of two electric push rods respectively, the electric push rods are fixedly mounted on the outside of the slag discharge pipe, an electromagnetic valve is mounted on the liquid discharge pipe, the electromagnetic valve and the electric push rods are electrically connected to a control box, the control box is fixedly mounted on the fermentation tank, and a filter screen is fixedly mounted on one end of the liquid discharge pipe.

[0010] In one alternative embodiment: the drive assembly includes a second motor, which is fixedly mounted on the upper end of the fermentation tank and electrically connected to a control box. A first bevel gear is fixedly mounted on the output end of the second motor. A second bevel gear and a third bevel gear are meshed on the first bevel gear. The second bevel gear is fixedly mounted on one end of a mounting shaft, and the third bevel gear is fixedly mounted on one end of a sleeve shaft. A first support frame is rotatably mounted on one end of the transmission pipe, and a second support frame is rotatably mounted on the other end of the mounting shaft. Both the first and second support frames are fixedly mounted inside the fermentation tank. Several first stirring rods are provided on the outside of the transmission pipe.

[0011] In one alternative: the mounting shaft is provided with a circular array of several material guide plates, which are in close contact with the inside of the discharge box.

[0012] In one alternative: the feeding mechanism includes a distributing roller, one end of the feeding pipe is connected to a distributing box, a storage box is connected to the distributing box, the distributing roller is rotatably disposed inside the distributing box, a plurality of distributing slots are arranged in a circular array on the distributing roller, one end of the distributing roller is fixedly connected to the output end of a first motor, and the first motor is fixedly disposed on one side of the distributing box.

[0013] In one alternative embodiment: the air intake mechanism includes an air intake pipe frame, two air intake pipe frames are symmetrically arranged, each air intake pipe frame is fixedly mounted on a sleeve shaft, each air intake pipe frame is tightly attached to the inner wall of the fermentation tank, the interior of each air intake pipe frame is hollow, and the inner side of each air intake pipe frame is provided with several exhaust holes. The upper end of each air intake pipe frame is connected to a fixed pipe, the fixed pipe is located in the upper limiting hole of the sealing ring, the sealing ring is rotatably located inside the sealing ring pipe, the sealing ring pipe is fixedly mounted on the upper end of the fermentation tank, and an air intake pipe is connected to the sealing ring pipe. The air intake pipe is connected to the output end of an external air supply component, and the inner side of each air intake pipe frame is provided with several second stirring rods.

[0014] In one alternative: a scraper is provided close to the bottom of the fermenter body at the position corresponding to the filter screen, and the scraper is fixedly installed at one end of the transmission pipe.

[0015] In one alternative embodiment: an installation pipe is connected to the upper end of the fermentation tank, and a sealing block is slidably installed inside the installation pipe. The sealing block is truncated cone-shaped and fixed to one end of a telescopic rod. The telescopic rod is fixed to the bottom end of an adjusting plate. A return spring is provided between the upper end of the sealing block and the bottom end of the adjusting plate. The adjusting plate is rotatably mounted on one end of a threaded rod. A threaded hole is provided at the upper end of the installation pipe corresponding to the position of the threaded rod. An exhaust pipe is connected to the installation pipe and is connected to the input end of an external waste gas treatment component.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention features a transmission pipe and an installation shaft inside the fermentation tank. A spiral plate is installed on the installation shaft at a position corresponding to the inside of the transmission pipe, facilitating the transport of vinegar fermentation material from the bottom of the fermentation tank and promoting its circulation. A distributing roller with several distributing grooves inside the distributing box reduces the entry of external gas into the fermentation tank during material addition. When not in use, the distributing roller and distributing box work together to seal one end of the feeding pipe. An air intake mechanism facilitates the supply of oxygen to the fermentation tank, and the air intake pipe bracket rotates with the sleeve shaft to ensure uniform fermentation of the vinegar fermentation material. The installation pipe and sealing block facilitate venting from the fermentation tank, and when venting is not required, the interior of the fermentation tank remains sealed, thus increasing the practicality of the vinegar fermentation tank. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the fermentation tank of this utility model.

[0020] Figure 3 This is a schematic diagram of the spiral plate structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the sealing ring and sealing ring tube structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the material distribution roller structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the internal structure of the installation pipe of this utility model.

[0024] Figure 7 This is a schematic diagram of the filter installation of this utility model.

[0025] Figure reference numerals: 11 Fermentation tank body, 12 Drain pipe, 13 Filter screen, 14 Baffle, 15 Electric push rod, 16 Control box, 17 Distributor box, 18 Storage box, 19 Distributor roller, 20 First motor, 21 Transmission pipe, 22 Discharge box, 23 Shaft sleeve, 24 Mounting shaft, 25 Spiral plate, 26 Material feeding plate, 27 Second motor, 28 Air inlet pipe bracket, 29 Sealing ring, 30 Sealing ring pipe, 31 Air inlet pipe, 32 Mounting pipe, 33 Sealing block, 34 Threaded rod, 35 Return spring, 36 Exhaust pipe, 37 Scraper. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Example 1

[0028] In one embodiment, such as Figures 1-7 As shown, a vinegar fermentation tank with easy material addition includes a fermentation tank body 11. A drain pipe 12 and a slag discharge pipe are connected to the bottom of the fermentation tank body 11. A transmission pipe 21 is provided inside the fermentation tank body 11. An installation shaft 24 is coaxially mounted inside the transmission pipe 21. A spiral plate 25 is fixedly mounted on the installation shaft 24 at a position corresponding to the inside of the transmission pipe 21. The spiral plate 25 is tightly fitted to the inside of the transmission pipe 21. A discharge box 22 is fixedly mounted at one end of the transmission pipe 21. A sleeve shaft 23 is fixedly mounted on the upper end of the discharge box 22. The fermentation tank body 11... The end is provided with a drive assembly for rotating the transmission pipe 21 and the mounting shaft 24. The upper end of the fermentation tank 11 is connected to a feeding pipe. One end of the feeding pipe is connected to a feeding mechanism for uniformly feeding materials into the fermentation tank 11. The sleeve shaft 23 is provided with an air intake mechanism for supplying oxygen into the fermentation tank 11. The feeding mechanism facilitates feeding materials during the fermentation process of the fermentation tank 11 and also facilitates keeping the inside of the fermentation tank 11 sealed. The air intake mechanism facilitates supplying oxygen into the fermentation tank 11 during the fermentation process.

[0029] A baffle 14 is slidably mounted on the slag discharge pipe. The baffle 14 is fixedly connected to the output ends of two electric push rods 15. The electric push rods 15 are fixedly mounted on the outside of the slag discharge pipe. An electromagnetic valve is mounted on the liquid discharge pipe 12. The electromagnetic valve and the electric push rods 15 are electrically connected to the control box 16. The control box 16 is fixedly mounted on the fermentation tank 11. A filter screen 13 is fixedly mounted on one end of the liquid discharge pipe 12. When it is necessary to discharge vinegar, the electromagnetic valve is opened, and the fermented material is filtered through the filter screen 13 to separate the liquid. Then, the electric push rods 15 are activated. The output end of the electric push rods 15 drives the baffle 14 to move, thereby opening the slag discharge pipe and discharging the fermented material inside the fermentation tank 11.

[0030] The drive assembly includes a second motor 27, which is fixedly mounted on the upper end of the fermentation tank 11. The second motor 27 is electrically connected to the control box 16. A first bevel gear is fixedly mounted on the output end of the second motor 27. A second bevel gear and a third bevel gear mesh with the first bevel gear. The second bevel gear is fixedly mounted on one end of the mounting shaft 24, and the third bevel gear is fixedly mounted on one end of the sleeve shaft 23. A first support frame is rotatably mounted on one end of the transmission pipe 21, and a second support frame is rotatably mounted on the other end of the mounting shaft 24. Both the first and second support frames are fixedly mounted inside the fermentation tank 11. Several first stirring rods are provided on the outside of the transmission pipe 21. In use, when the fermentation tank... When the vinegar fermentation material inside the fermentation tank 11 is turned and stirred during fermentation, the control box 16 controls the second motor 27 to start. The second motor 27 drives the sleeve shaft 23 and the mounting shaft 24 to rotate through the first bevel gear. The sleeve shaft 23 drives the transmission pipe 21 to rotate, so that the transmission pipe 21 rotates in the opposite direction to the mounting shaft 24. When the transmission pipe 21 rotates, it stirs the fermentation material through several first stirring rods. The mounting shaft 24 drives the spiral plate 25 to rotate. The spiral plate 25 cooperates with the transmission pipe 21 to transport the vinegar fermentation material at the bottom of the fermentation tank 11 to the discharge box 22. Then the discharge box 22 discharges through the discharge port, so that the vinegar fermentation material inside the fermentation tank 11 can flow, turn and be stirred.

[0031] The mounting shaft 24 is provided with a circular array of several material-dispensing plates 26. The material-dispensing plates 26 are in close contact with the inside of the discharge box 22. When in use, after the vinegar fermentation material is transported into the discharge box 22, the mounting shaft 24 drives the material-dispensing plates 26 to rotate, thereby breaking up the fermentation material and facilitating the uniform fermentation of the vinegar fermentation material.

[0032] The feeding mechanism includes a distributing roller 19. One end of the feeding pipe is connected to a distributing box 17, and a storage box 18 is connected to the distributing box 17. The distributing roller 19 is rotatably disposed inside the distributing box 17. The distributing roller 19 has a plurality of distributing grooves arranged in a circular array. One end of the distributing roller 19 is fixedly connected to the output end of a first motor 20. The first motor 20 is fixedly disposed on one side of the distributing box 17. In use, when materials need to be added during the fermentation process of vinegar fermentation material inside the fermentation tank 11, the materials are placed inside the storage box 18. Then, the first motor 20 is controlled to rotate by the control box 16. The first motor 20 drives the distributing roller 19 to rotate. When a distributing groove on the distributing roller 19 is aligned with the discharge end of the storage box 18, the materials inside the storage box 18 fall into the distributing groove, thereby venting the gas inside the distributing groove. When the distributing groove rotates to one end of the feeding pipe, the materials inside the distributing groove fall into the fermentation tank 11 and are stirred by the first stirring rod.

[0033] The air intake mechanism includes an air intake pipe bracket 28, with two air intake pipe brackets 28 arranged symmetrically. Each air intake pipe bracket 28 is fixedly mounted on a sleeve shaft 23 and is tightly fitted against the inner wall of the fermentation tank 11. The interior of each air intake pipe bracket 28 is hollow, and several exhaust holes are provided on its inner side. A fixed pipe is connected to the upper end of each air intake pipe bracket 28, and the fixed pipe is located within a limiting hole at the upper end of a sealing ring 29. The sealing ring 29 is rotatably mounted inside a sealing ring tube 30, which is fixedly mounted on the upper end of the fermentation tank 11. An air intake pipe 31 is connected to the sealing ring tube 30. The air inlet pipe 31 is connected to the output end of the external air supply component. The inner side of the air inlet pipe frame 28 is provided with several second stirring rods. When it is necessary to add oxygen to the fermentation tank 11, the external air supply component delivers gas to the sealing ring pipe 30 through the air inlet pipe 31. Then the gas enters the air inlet pipe frame 28 through the fixed pipe. The air inlet pipe frame 28 is discharged through several exhaust holes. The air inlet pipe frame 28 rotates with the transmission pipe 21, which facilitates the fermentation of vinegar. The air inlet pipe frame 28 is in close contact with the inner wall of the fermentation tank 11, which allows the inner wall of the fermentation tank 11 to be cleaned when the vinegar fermentation is discharged.

[0034] A scraper 37 is provided close to the bottom of the fermentation tank 11 at the position corresponding to the filter screen 13. The scraper 37 is fixedly installed at one end of the transmission pipe 21. When it is needed to discharge the liquid, the transmission pipe 21 drives the scraper 37 to rotate, thereby cleaning one side of the filter screen 13 and preventing the filter screen 13 from being blocked.

[0035] Example 2

[0036] The difference from Embodiment 1 is that: the upper end of the fermentation tank 11 is connected to an installation pipe 32, and a sealing block 33 is slidably installed inside the installation pipe 32. The sealing block 33 is frustoconical and is fixed to one end of a telescopic rod. The telescopic rod is fixed to the bottom end of an adjusting plate. A return spring 35 is provided between the upper end of the sealing block 33 and the bottom end of the adjusting plate. The adjusting plate is rotatably mounted on one end of a threaded rod 34. A threaded hole is provided at the upper end of the installation pipe 32 corresponding to the position of the threaded rod 34. An exhaust pipe 36 is connected to the installation pipe 32. The exhaust pipe 36 is connected to the input end of the external waste gas treatment component. During use, when fermentation gas is generated inside the fermentation tank 11, as the gas pressure increases, the gas pressure pushes the sealing block 33 to move, so that the inside of the fermentation tank 11 is connected to the exhaust pipe 36, thereby venting the fermentation gas inside the fermentation tank 11, making it easier for the external waste gas treatment component to process it. At the same time, when it is necessary to adjust the gas pressure that pushes the sealing block 33 to move, the mounting pipe 32 is rotated, and under the action of the thread, the adjusting plate is moved, and the adjusting plate compresses the return spring 35.

[0037] The above embodiment discloses a vinegar fermentation tank that facilitates material addition. During the fermentation process, when the vinegar fermentation material inside the fermentation tank 11 is agitated and stirred, the control box 16 controls the second motor 27 to start. The second motor 27 drives the sleeve shaft 23 and the mounting shaft 24 to rotate via the first bevel gear. The sleeve shaft 23 drives the transmission pipe 21 to rotate, so that the transmission pipe 21 rotates in the opposite direction to the mounting shaft 24. When the transmission pipe 21 rotates, it stirs the fermentation material through several first stirring rods. The mounting shaft 24 drives the spiral plate 25 to rotate. The spiral plate 25 cooperates with the transmission pipe 21 to transport the vinegar fermentation material at the bottom of the fermentation tank 11 to the discharge box 22. The mounting shaft 24 drives the material-dispensing plate 26 to rotate, thus breaking up the fermentation material. Subsequently, the discharge box 22 discharges the material through the discharge port, thereby allowing the vinegar fermentation material inside the fermentation tank 11 to flow, agitate, and be stirred.

[0038] When materials need to be added during the fermentation process of vinegar fermentation material inside fermentation tank 11, the materials are placed inside storage box 18. Then, the first motor 20 is controlled to rotate through control box 16. The first motor 20 drives the distributing roller 19 to rotate. When the distributing groove on the distributing roller 19 is aligned with the discharge end of storage box 18, the material inside storage box 18 falls into the distributing groove, causing the gas inside the distributing groove to be discharged. When the distributing groove rotates to one end of the feeding pipe, the material inside the distributing groove falls into fermentation tank 11 and is stirred by the first stirring rod.

[0039] When oxygen needs to be added to the fermentation tank 11, the external gas supply component delivers gas to the sealing ring pipe 30 through the air inlet pipe 31. Then, the gas enters the air inlet pipe frame 28 through the fixed pipe. The air inlet pipe frame 28 is discharged through several exhaust holes, and the air inlet pipe frame 28 rotates with the transmission pipe 21 to facilitate the fermentation of vinegar. At the same time, when fermentation gas is generated inside the fermentation tank 11, as the gas pressure increases, the gas pressure pushes the sealing block 33 to move, so that the inside of the fermentation tank 11 is connected to the exhaust pipe 36, thereby discharging the fermentation gas inside the fermentation tank 11 and facilitating the treatment by the external waste gas treatment component.

[0040] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A vinegar fermentation tank for easy feeding, comprising a fermentation tank body (11), wherein the bottom end of the fermentation tank body (11) is connected to a drain pipe (12) and a slag discharge pipe, and a transmission pipe (21) is provided inside the fermentation tank body (11), characterized in that, The transmission pipe (21) is coaxially provided with an installation shaft (24). A spiral plate (25) is fixedly provided on the installation shaft (24) at a position corresponding to the inside of the transmission pipe (21). The spiral plate (25) is in close contact with the inside of the transmission pipe (21). A discharge box (22) is fixedly provided at one end of the transmission pipe (21). A sleeve shaft (23) is fixedly provided at the upper end of the discharge box (22). A drive assembly for driving the transmission pipe (21) and the installation shaft (24) to rotate is provided at the upper end of the fermentation tank (11). A feeding pipe is connected to the upper end of the fermentation tank (11). A feeding mechanism for uniformly feeding materials into the fermentation tank (11) is connected to one end of the feeding pipe. An air intake mechanism for supplying oxygen into the fermentation tank (11) is provided on the sleeve shaft (23).

2. The vinegar fermentation tank with easy-to-add materials according to claim 1, characterized in that, A baffle (14) is slidably provided on the slag discharge pipe. The baffle (14) is fixedly connected to the output ends of two electric push rods (15). The electric push rods (15) are fixedly provided on the outside of the slag discharge pipe. An electromagnetic valve is provided on the liquid discharge pipe (12). The electromagnetic valve and the electric push rods (15) are electrically connected to the control box (16). The control box (16) is fixedly provided on the fermentation tank (11). A filter screen (13) is fixedly provided at one end of the liquid discharge pipe (12).

3. A vinegar fermentation tank for easy material addition according to claim 2, characterized in that, The drive assembly includes a second motor (27), which is fixedly mounted on the upper end of the fermentation tank (11). The second motor (27) is electrically connected to the control box (16). A first bevel gear is fixedly mounted on the output end of the second motor (27). A second bevel gear and a third bevel gear are meshed on the first bevel gear. The second bevel gear is fixedly mounted on one end of the mounting shaft (24), and the third bevel gear is fixedly mounted on one end of the sleeve shaft (23). A first support frame is rotatably mounted on one end of the transmission pipe (21), and a second support frame is rotatably mounted on the other end of the mounting shaft (24). Both the first support frame and the second support frame are fixedly mounted inside the fermentation tank (11). Several first stirring rods are provided on the outside of the transmission pipe (21).

4. A vinegar fermentation tank for easy material addition according to claim 3, characterized in that, The mounting shaft (24) is provided with a circular array of several material guide plates (26), which are in close contact with the inside of the discharge box (22).

5. A vinegar fermentation tank for easy material addition according to claim 2, characterized in that, The feeding mechanism includes a distributing roller (19), one end of the feeding pipe is connected to a distributing box (17), a storage box (18) is connected to the distributing box (17), the distributing roller (19) is rotatably disposed inside the distributing box (17), a plurality of distributing grooves are arranged in a circular array on the distributing roller (19), one end of the distributing roller (19) is fixedly connected to the output end of a first motor (20), and the first motor (20) is fixedly disposed on one side of the distributing box (17).

6. A vinegar fermentation tank for easy material addition according to claim 3, characterized in that, The air intake mechanism includes an air intake pipe frame (28), two air intake pipe frames (28) are symmetrically arranged, the air intake pipe frames (28) are fixed on the sleeve shaft (23), the air intake pipe frames (28) are tightly attached to the inner wall of the fermentation tank (11), the air intake pipe frame (28) is hollow inside, the air intake pipe frame (28) is provided with several exhaust holes on the inner side, the upper end of the air intake pipe frame (28) is connected to a fixed pipe, the fixed pipe is located in the upper limit hole of the sealing ring (29), the sealing ring (29) is rotatably located inside the sealing ring tube (30), the sealing ring tube (30) is fixedly located at the upper end of the fermentation tank (11), the sealing ring tube (30) is connected to an air intake pipe (31), the air intake pipe (31) is connected to the output end of the external air supply component, and the inner side of the air intake pipe frame (28) is provided with several second stirring rods.

7. A vinegar fermentation tank for easy material addition according to claim 2, characterized in that, A scraper (37) is provided close to the bottom of the fermentation tank (11) at the position corresponding to the filter screen (13), and the scraper (37) is fixedly installed at one end of the transmission pipe (21).

8. A vinegar fermentation tank for easy material addition according to claim 1, characterized in that, The fermentation tank (11) is connected to an installation pipe (32) at its upper end. A sealing block (33) is slidably provided inside the installation pipe (32). The sealing block (33) is set in a frustum shape. The sealing block (33) is fixedly provided at one end of a telescopic rod. The telescopic rod is fixedly provided at the bottom end of an adjusting plate. A return spring (35) is provided between the upper end of the sealing block (33) and the bottom end of the adjusting plate. The adjusting plate is rotatably provided at one end of a threaded rod (34). A threaded hole is provided at the upper end of the installation pipe (32) corresponding to the position of the threaded rod (34). An exhaust pipe (36) is connected to the installation pipe (32). The exhaust pipe (36) is connected to the input end of an external waste gas treatment component.

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