Tail gas recovery device of closed filling machine

Abstract

The invention provides a closed filling machine tail gas recovery device, and belongs to the technical field of filling machine tail gas recovery. Comprising a main body, an air inlet mechanism and a rotational flow mechanism, the air inlet mechanism is arranged at the top of the main body and comprises an air inlet cylinder, the air inlet cylinder is fixedly connected to the top of the main body, the rotational flow mechanism is arranged in the air inlet cylinder and provided with a rotational flow plate, the rotational flow plate is arranged in the air inlet cylinder, and the rotational flow mechanism is used for rotating the rotational flow plate in the normal use process of the device. And the rotational flow plate is limited. The pressure applied to the blades in the rotational flow plate is relieved through rotation of the rotational flow plate, the pressure generated on the blades in the rotational flow plate when airflow passes through the rotational flow plate is reduced, and the situation that the rotational flow plate blades are bent and deformed due to the fact that the impact pressure of the high-speed airflow borne by the rotational flow plate blades is too large is avoided; and the normal use of the rotational flow plate is influenced due to serious breakage, so that the tail gas treatment efficiency of the device and the stability of the equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas recovery for filling machines, and in particular to a closed tail gas recovery device for filling machines. Background Art

[0002] Filling machines are mainly a small category of packaging machines. From the perspective of material packaging, they can be divided into liquid filling machines, paste filling machines, powder filling machines, and granule filling machines; from the perspective of the degree of production automation, they are divided into semi-automatic filling machines and fully automatic filling production lines, as well as a series of special settings for different industries. The filling machine will produce exhaust gas during the filling process. In the existing technology, when the exhaust gas of the filling machine is sucked into the recovery device, the exhaust gas of the filling machine needs to be treated inside the exhaust gas treatment device. When the exhaust gas is just sucked into the device, in order to ensure the effect of the untreated exhaust gas treatment inside the device, a swirl plate is generally installed inside the device, which can promote uniform gas distribution, enhance the treatment effect of the exhaust gas inside the device, avoid airflow deviation or turbulence inside the device, thereby avoiding excessive or low pressure in local areas of the device, affecting the stability of the entire exhaust gas recovery system.

[0003] However, the swirl plates are mostly fixed inside the gas treatment tank, and in order to enhance the effect of the swirl plates inside the device and quickly realize airflow deflection and swirl, the swirl plates are installed near the air inlet, so that when the exhaust gas is drawn into the device, the intake airflow will blow directly on the swirl plates. However, the blades of the swirl plates are generally thin. When the airflow entering the device is too large, the impact pressure on the swirl plates will be too large, causing the blades of the swirl plates to bend and deform, and even break, which affects the effect of the swirl plates, reduces the exhaust gas treatment efficiency of the device and affects the stability of the equipment. Therefore, the present application provides a closed filling machine exhaust gas recovery device to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a closed type filling machine exhaust gas recovery device to solve the problem that when the exhaust gas flow entering the interior of the device is too large, the impact pressure on the swirl plate will be too large, causing the swirl plate blades to bend and deform, and seriously break, thereby affecting the function of the swirl plate, reducing the exhaust gas treatment efficiency of the device and affecting the stability of the equipment. Therefore, this application provides a closed type filling machine exhaust gas recovery device to meet the needs.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A closed type filling machine exhaust gas recovery device includes a main body and further includes:

[0007] The air intake mechanism is arranged on the top of the main body and includes an air intake cylinder which is fixedly connected to the top of the main body;

[0008] The swirl mechanism is arranged inside the air inlet cylinder. The swirl mechanism is provided with a swirl plate. The swirl plate is arranged inside the air inlet cylinder. The swirl mechanism is used to limit the swirl plate during normal use of the device, so that the swirl plate is in a fixed state inside the air inlet cylinder. After the gas passes through the swirl plate, it forms a rotating flow state;

[0009] A buffer mechanism is provided inside the air intake cylinder;

[0010] The protection mechanism is arranged inside the air intake cylinder. When the airflow entering the air intake cylinder is too large, the buffer mechanism cooperates with the protection mechanism to release the fixed state of the swirl plate, so that when the high-speed airflow passes through the swirl plate, the blades inside the swirl plate cause the swirl plate to rotate as a whole.

[0011] Optionally, a lower connecting tube is fixedly connected to the bottom of the main body, the lower connecting tube is communicated with the main body, a plurality of pipe joints are fixedly connected to the outer wall of the lower connecting tube, an inner core mounting port is fixedly connected to the bottom of the main body, the upper and lower ends of the inner core mounting port are connected, an inner core connecting tube is fixedly connected to the top of the main body, a plurality of mounting brackets are fixedly connected to the outer wall of the inner core connecting tube, a limited extension bracket is fixedly connected to the inner wall of the inner core connecting tube, the main body is communicated with the air intake tube through the inner core connecting tube, an exhaust gas treatment tube is detachably installed inside the inner core mounting port, a sleeve is provided on the top of the exhaust gas treatment tube, the sleeve is sleeved on the outer wall of the inner core connecting tube, a rotating bayonet is provided on the outer wall of the sleeve, and the rotating bayonet is used in conjunction with the mounting bracket.

[0012] Optionally, the air intake mechanism further includes a fixing frame, which is fixedly connected to the top of the air intake cylinder, an air pump is fixedly connected inside the fixing frame, and an output end of the air pump is communicated with the inside of the air intake cylinder.

[0013] Optionally, a thickening layer is fixedly connected to the outer wall of the air intake cylinder, a plurality of interlocking limit grooves are provided on the inner wall of the air intake cylinder, a convex annular groove is provided inside the thickening layer, a rotating groove is provided at a point inside the thickening layer at the bottom of the convex annular groove, the rotating groove is connected to the convex annular groove, and a connecting channel is provided between each interlocking limit groove and the convex annular groove, a plurality of vertical bar holes are provided on the inner wall of the air intake cylinder, the vertical bar holes are connected to the rotating groove, an annular rotating groove is provided at the connection between the air intake cylinder and the swirl plate, and the swirl plate is rotatably connected to the inside of the annular rotating groove.

[0014] Optionally, the swirl mechanism further includes a plurality of elastic strips, all of which are fixedly connected to the bottom of the swirl plate at the edge of the inner wall of the air inlet cylinder, and each elastic strip is fixedly connected to the bottom with a chimeric ball, which is chimeric with the inside of the chimeric limit groove.

[0015] Optionally, the buffer mechanism includes a polygonal tube, which is slidably connected to the top of the swirl plate, slides through the center of the swirl plate, a force plate is fixedly connected to the top of the polygonal tube, a spring plate is fixedly connected to the outer wall of the polygonal tube, and a tension spring is fixedly connected between the spring plate and the swirl plate.

[0016] Optionally, an opening is provided at the connection between the top of the force-bearing plate and the polygonal tube, an air collecting box is fixedly connected to the bottom of the polygonal tube, the interior of the polygonal tube is connected to the interior of the air collecting box, and a plurality of air holes are provided on the outer wall of the air collecting box.

[0017] Optionally, a round rod is fixedly connected to the bottom of the gas collecting box, and the round rod slides through the center of the limit extension frame. The outer wall of the round rod is fixedly connected to the limit frame at a place above the limit extension frame. The end of the outer wall of the round rod away from the limit frame is fixedly connected to two contraction boxes, and the two contraction boxes are staggered up and down. An extension toggle rod is slidably connected inside the contraction box, and a paddle is provided at the end of the extension toggle rod away from the round rod. A reset spring is fixedly connected between the extension toggle rod and the side of the contraction box close to the round rod.

[0018] Optionally, the protection mechanism includes multiple push rods, which are respectively slidably connected to the connecting channels between the multiple interlocking limit grooves and the convex ring groove. The push rods are against the outer wall of the interlocking ball. A spherical push block is fixedly connected to the side of the push rod close to the inside of the convex ring groove. The spherical push block is arranged inside the convex ring groove. A spring is fixedly connected between the spherical push block and the side of the inner wall of the convex ring groove close to the interlocking limit groove. A rotating ring is rotatably connected to the inside of the convex ring groove.

[0019] Optionally, a plurality of extrusion rollers are rotatably connected to the interior of the rotating ring, and the plurality of extrusion rollers correspond to each spherical push block respectively, and the extrusion rollers are against the outer wall of the spherical push block. A lower annular cylinder is fixedly connected to the bottom of the rotating ring, and the lower annular cylinder is rotatably connected to the interior of the rotating groove. A plurality of track bar holes are provided on the outer wall of the lower annular cylinder, and the plurality of track bar holes are distributed corresponding to each vertical bar hole respectively. A control slide rod is slidably connected to the interior of each track bar hole, and the control slide rod is slidably connected to the interior of the vertical bar hole. A plurality of control slide rods are located on one side inside the air intake cylinder and are fixedly connected to a lower pressure frame. A circular hole is provided at the center of the lower pressure frame, and the diameter of the circular hole is larger than the maximum length between each diagonal corner of the polygonal tube. The top of the fixed frame is against the bottom of the spring plate.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In the above scheme, when the air flow entering the air intake cylinder is too fast and the impact force on the force-bearing plate is too large, the polygonal tube passing through the swirl plate will increase its downward range, causing the bottom of the spring plate to counteract the top of the lower pressure frame. The downward pressure continuously applied to the force-bearing plate by the impact force of the air flow will push the lower pressure frame downward through the spring plate, thereby driving multiple control slide bars to vertically descend inside the vertical bar holes, and then through the track bar holes obliquely set on the lower annular cylinder, the lower annular cylinder can be rotated inside the rotating groove according to the guidance of the track bar holes and the limit of the vertical bar holes, thereby driving the rotating ring to rotate inside the convex annular groove. Through the rotation of the rotating ring, the extruding roller inside the rotating ring gradually counteracts the spherical surface of the spherical push block, and applies thrust to the spherical push block, compressing the spring between the spherical push block and the inner wall of the convex annular groove, so that the push rod penetrates the engaging limit When the swirl plate is rotated, the swirl plate is rotated in the annular groove, and the swirl plate is rotated in the annular groove. When the swirl plate is rotated, the swirl plate is rotated in the annular groove. When the swirl plate is rotated, the swirl plate is rotated in the annular groove. When the swirl plate is rotated, the swirl plate is rotated in the annular groove. When the swirl plate is rotated, the swirl plate is rotated and the pressure applied to the blades inside the swirl plate is released. When the airflow passes through the swirl plate, the pressure on the blades inside the swirl plate is reduced, thereby avoiding the swirl plate blades from being bent and deformed due to the impact pressure of the high-speed airflow. The blades are seriously broken, which affects the normal use of the swirl plate, thereby improving the exhaust gas treatment efficiency and the stability of the device.

[0022] When the airflow continuously applies thrust to the lower pressure frame through the buffer mechanism, the push rod will continue to stay inside the interlocking limit groove, thereby reducing the depth of the interlocking limit groove. During the rotation of the swirl plate, the interlocking ball can avoid re-entering the inside of the interlocking limit groove when passing through the interlocking limit groove, reducing the resistance generated when the interlocking ball passes through the interlocking limit groove, thereby facilitating the continuous rotation and pressure relief of the swirl plate, and improving the smoothness of the rotation process of the swirl plate. During the continuous rotation of the swirl plate, the inner wall of the circular hole at the center of the lower pressure frame is larger than the diameter of the polygon of the polygonal tube, so that it does not contact the outer wall of the polygonal tube, and will not affect the swirl The plate drives the rotation of the polygonal tube. Therefore, the polygonal tube is driven to rotate by the swirl plate, so that the shrinkage box on the round rod rotates synchronously. The centrifugal force of the rotation of the shrinkage box is greater than the gravity of the return spring and the toggle piece connected to the extended toggle rod. During the rotation of the shrinkage box, the extended toggle rod is thrown out of the shrinkage box, so that the toggle piece on the extended toggle rod contacts the inner wall of the exhaust gas treatment tube. The exhaust gas treatment tube is toggled through the protrusions on the inner wall of the exhaust gas treatment tube, causing the inside of the exhaust gas treatment tube to shake, so that the exhaust gas can fully contact with the substances inside the exhaust gas treatment tube after passing through the exhaust gas treatment tube, thereby further improving the effect of exhaust gas treatment.

[0023] The opening of the polygonal tube passes through the top of the force-bearing plate. When the airflow that has just entered the air intake cylinder directly impacts the top of the force-bearing plate, a part of the strong airflow will enter the polygonal tube and enter the air collecting box located below the swirl plate. As a result, the strong airflow that has just entered the air intake cylinder continues to pass through the polygonal tube and enter the polygonal tube. The strong airflow that continues to enter the air collecting box will diffuse into the air intake cylinder through multiple air outlet holes on the outer wall of the air collecting box, thereby performing secondary cutting and stirring on the gas that has passed through the swirl plate to cause the airflow to rotate. While avoiding the formation of a low-speed dead zone in the central area of the swirling gas device after passing through the swirl plate, the airflow forms a more complex turbulent flow field, further increasing the contact degree and collision frequency between the gas and the reactants inside the exhaust treatment cylinder, improving the reaction efficiency of the exhaust gas and the exhaust treatment cylinder, and improving the treatment effect of the filled exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a partial cross-sectional view of the present invention;

[0027] Figure 3 It is a schematic diagram of the main structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the tail gas treatment tube of the present invention;

[0029] Figure 5 This is a schematic diagram of the cyclone mechanism structure of the present invention;

[0030] Figure 6 This is a schematic structural diagram of the buffer mechanism of the present invention;

[0031] Figure 7 This is a schematic diagram of the protection mechanism structure of the present invention;

[0032] Figure 8 This is a schematic diagram of the cooperation between the cyclone mechanism and the protection mechanism of the present invention;

[0033] Figure 9 for Figure 3 Enlarged view of point A in the middle;

[0034] Figure 10 for Figure 6 Enlarged view of point B in the middle;

[0035] Figure 11 for Figure 8 Enlarged view of point C in the middle.

[0036] Reference numerals

[0037] 1. Main body; 101. Lower connecting tube; 102. Pipe joint; 103. Inner core mounting port; 104. Inner core connecting tube; 105. Mounting bracket; 106. Limit extension bracket; 2. Air intake mechanism; 201. Air intake tube; 202. Thickening layer; 203. Interlocking limit groove; 204. Convex annular groove; 205. Rotation groove; 206. Vertical strip hole; 207. Annular rotation groove; 208. Fixing bracket; 209. Air pump; 3. Swirl mechanism; 301. Swirl plate; 302. Elastic strip; 303. Interlocking ball; 4. Buffer mechanism; 401. Polygonal tube; 402. Force plate; 403. Spring plate; 404. Tension spring; 405. Gas collecting box; 406. Round rod; 407. Limiting frame; 408. Contraction box; 409. Extension toggle rod; 410. Return spring; 5. Protection mechanism; 501. Push rod; 502. Spherical push block; 503. Rotating ring; 504. Extrusion roller; 505. Lower annular cylinder; 506. Track strip hole; 507. Control slide bar; 508. Lower pressure frame; 6. Exhaust treatment cylinder.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0039] The following describes in detail a closed-type exhaust gas recovery device for a filling machine provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, to make the embodiments more detailed, the following embodiments are best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement certain known technologies. Furthermore, the accompanying drawings are only for the purpose of describing the embodiments in more detail and are not intended to limit the present invention.

[0040] It should be noted that references in the specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes such specific features, structures, or characteristics. In addition, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0043] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0044] Example 1, as Figures 1 to 11 As shown, an embodiment of the present invention provides a closed type filling machine exhaust gas recovery device;

[0045] like Figures 1 to 4 and Figure 9As shown, it includes a main body 1, a lower connecting tube 101 is fixedly connected to the bottom of the main body 1, the lower connecting tube 101 is communicated with the main body 1, a plurality of pipe joints 102 are fixedly connected to the outer wall of the lower connecting tube 101, an inner core mounting port 103 is fixedly connected to the bottom of the main body 1, the upper and lower ends of the inner core mounting port 103 are passed through, an inner core connecting tube 104 is fixedly connected to the top of the main body 1, a plurality of mounting brackets 105 are fixedly connected to the outer wall of the inner core connecting tube 104, a limited extension bracket 106 is fixedly connected to the inner wall of the inner core connecting tube 104, the main body 1 is communicated with the air inlet tube 201 through the inner core connecting tube 104, an exhaust gas treatment tube 6 is detachably installed inside the inner core mounting port 103, a sleeve is provided on the top of the exhaust gas treatment tube 6, and the sleeve is sleeved on The outer wall of the inner core connecting tube 104 and the outer wall of the sleeve are provided with a rotating bayonet, which is used in conjunction with the mounting bracket 105. The exhaust gas treatment tube 6 is inserted into the interior of the main body 1 through the inner core mounting port 103 at the bottom of the lower connecting tube 101, so that the top of the exhaust gas treatment tube 6 is sleeved on the inner core connecting tube 104, and the part between the mounting bracket 105 and the inner core connecting tube 104 enters the inner wall of the opening at the top of the exhaust gas treatment tube 6. By rotating the exhaust gas treatment tube 6, the exhaust gas treatment tube 6 is stuck on the outer wall of the inner core connecting tube 104, and at the same time, the bottom of the exhaust gas treatment tube 6 is abutted against the bottom of the inner core mounting port 103, and then the bottom of the exhaust gas treatment tube 6 is fixed to the inner core mounting port 103 by bolts, which is convenient for disassembly and replacement of the exhaust gas treatment tube 6;

[0046] like Figures 1 to 4 and Figure 9 As shown, it includes an air intake mechanism 2, which is arranged on the top of the main body 1. The air intake mechanism 2 includes an air intake cylinder 201, which is fixedly connected to the top of the main body 1. The air intake mechanism 2 also includes a fixing frame 208, which is fixedly connected to the top of the air intake cylinder 201. An air pump 209 is fixedly connected to the inside of the fixing frame 208. The output end of the air pump 209 is connected to the inside of the air intake cylinder 201. A thickening layer 202 is fixedly connected to the outer wall of the air intake cylinder 201. A plurality of interlocking limiting grooves 203 are provided on the inner wall of the air intake cylinder 201. A convex annular groove 204 is provided inside the thickening layer 202. An opening at the bottom of the convex annular groove 204 is provided inside the thickening layer 202. A rotating groove 205 is provided, which is communicated with the convex annular groove 204. A connecting channel is provided between each engaging limit groove 203 and the convex annular groove 204. A plurality of vertical strip holes 206 are provided on the inner wall of the air intake cylinder 201, which are communicated with the rotating groove 205. An annular rotating groove 207 is provided at the connection between the air intake cylinder 201 and the swirl plate 301. The swirl plate 301 is rotatably connected to the inner part of the annular rotating groove 207. Before the exhaust gas enters the exhaust gas treatment cylinder 6 for treatment, the air intake mechanism 2 and the swirl mechanism 3 cooperate to change the flow posture of the exhaust gas that has just entered the interior of the air intake cylinder 201, so as to facilitate full contact and reaction between the exhaust gas and the exhaust gas treatment cylinder 6.

[0047] like Figure 2 、 Figures 4 to 6、 Figure 8 and Figure 11 As shown, it includes a swirl mechanism 3, which is arranged inside the air inlet cylinder 201. The swirl mechanism 3 is provided with a swirl plate 301, which is arranged inside the air inlet cylinder 201. The swirl mechanism 3 is used to limit the swirl plate 301 during normal use of the device, so that the swirl plate 301 is in a fixed state inside the air inlet cylinder 201, and the gas forms a rotating flow state after passing through the swirl plate 301. The swirl mechanism 3 also includes a plurality of elastic strips 302, and the plurality of elastic strips 302 are fixedly connected to the bottom of the swirl plate 301 near the edge of the inner wall of the air inlet cylinder 201. The bottom of each elastic strip 302 is fixedly connected to a chimeric ball 303, and the chimeric ball 303 is chimeric with the inside of the chimeric limiting groove 203, and the push rod 501 penetrates into the chimeric limiting groove 203. The swirl plate 301 is rotated in the annular groove 207 by the airflow passing through the swirl plate 301. When the airflow passing through the swirl plate 301 is too strong, the swirl plate 301 is restricted in position by the airflow passing through the swirl plate 301. The rotation of the swirl plate 301 releases the pressure on the blades inside the swirl plate 301, thereby reducing the pressure on the blades inside the swirl plate 301 when the airflow passes through the swirl plate 301.

[0048] like Figure 2 、 Figures 5 to 7 and Figure 10 As shown, it includes a buffer mechanism 4, which is arranged inside the air intake cylinder 201. The buffer mechanism 4 includes a polygonal tube 401, which is slidably connected to the top of the swirl plate 301, and the polygonal tube 401 slides through the center of the swirl plate 301. The top of the polygonal tube 401 is fixedly connected to a force plate 402, and the outer wall of the polygonal tube 401 is fixedly connected to a spring plate 403. A tension spring 404 is fixedly connected between the spring plate 403 and the swirl plate 301. The exhaust gas generated during filling passes through the solid After the air pump 209 inside the fixed frame 208 draws air into the air intake cylinder 201, the airflow column generated inside the swirl plate 301 will first impact the force-bearing plate 402. The force-bearing plate 402 will then pass through the center of the swirl plate 301 and slide downward. The spring between the swirl plate 301 and the spring plate 403 cushions the impact of the airflow, preventing the impact force of the airflow from being directly applied to the swirl plate 301 after the exhaust gas is drawn into the air intake cylinder 201, thereby preventing the swirl plate 301 from being deformed or damaged.

[0049] An opening is provided at the connection between the top of the force-bearing plate 402 and the polygonal tube 401, and an air collecting box 405 is fixedly connected to the bottom of the polygonal tube 401. The interior of the polygonal tube 401 is communicated with the interior of the air collecting box 405, and a plurality of air holes are provided on the outer wall of the air collecting box 405. The top of the force-bearing plate 402 is penetrated through the opening of the polygonal tube 401. When the airflow that has just entered the air inlet cylinder 201 directly impacts the top of the force-bearing plate 402, a part of the strong airflow will enter the interior of the polygonal tube 401 and the interior of the air collecting box 405 located below the swirl plate 301, thereby The strong airflow from the air inlet cylinder 201 continuously passes through the polygonal tube 401 and enters the interior of the polygonal tube 401. The strong airflow continuously entering the interior of the air collecting box 405 will diffuse into the interior of the air inlet cylinder 201 through the multiple air outlet holes on the outer wall of the air collecting box 405, thereby performing a secondary cutting and stirring on the gas that has been rotated by the swirl plate 301. While avoiding the formation of a low-speed dead zone in the central area of the gas device that swirls after passing through the swirl plate 301, the airflow forms a more complex turbulent flow field, further increasing the contact degree and collision frequency between the gas and the reactants in the exhaust gas treatment cylinder 6.

[0050] The bottom of the gas collecting box 405 is fixedly connected to a round rod 406, and the round rod 406 slides through the center of the limit extension frame 106. The outer wall of the round rod 406 is located above the limit extension frame 106 and is fixedly connected to the limit frame 407. The end of the outer wall of the round rod 406 away from the limit frame 407 is fixedly connected to two contraction boxes 408. The two contraction boxes 408 are staggered up and down. An extension toggle rod 409 is slidably connected inside the contraction box 408. The end of the extension toggle rod 409 away from the round rod 406 is provided with a paddle. A return spring 410 is fixedly connected between the extension toggle rod 409 and the side of the contraction box 408 close to the round rod 406. During the continuous rotation of the swirl plate 301, the inner wall of the circular hole at the center of the lower pressure frame 508 is larger than the diameter of the polygon of the polygonal tube 401, so that it does not collide with the The contact with the outer wall of the polygonal tube 401 will not affect the rotation of the polygonal tube 401 driven by the swirl plate 301. Therefore, the polygonal tube 401 is driven to rotate by the swirl plate 301, so that the contraction box 408 on the round rod 406 rotates synchronously. The centrifugal force of the rotation of the contraction box 408 is greater than the gravity of the return spring 410 and the toggle piece connected to the extension toggle rod 409. During the rotation of the contraction box 408, the extension toggle rod 409 is thrown out of the contraction box 408, so that the toggle piece on the extension toggle rod 409 contacts the inner wall of the exhaust gas treatment tube 6. The exhaust gas treatment tube 6 is toggled through the protrusion on the inner wall of the exhaust gas treatment tube 6, causing the exhaust gas treatment tube 6 to shake inside, making it easier for the exhaust gas to fully contact the substances inside the exhaust gas treatment tube 6 after passing through the exhaust gas treatment tube 6, thereby further improving the exhaust gas treatment effect.

[0051] like Figure 2 、 Figures 6 to 8 and Figure 11As shown, it includes a protection mechanism 5, which is arranged inside the air intake cylinder 201. When the airflow entering the air intake cylinder 201 is too large, the buffer mechanism 4 cooperates with the protection mechanism 5 to release the fixed state of the swirl plate 301, so that when the high-speed airflow passes through the swirl plate 301, the swirl plate 301 as a whole is rotated by the blades inside the swirl plate 301. The protection mechanism 5 includes a plurality of push rods 501, and the plurality of push rods 501 are respectively slidably connected to the interior of the connecting channel between the plurality of interlocking limit grooves 203 and the convex annular groove 204. The push rods 501 are against the outer wall of the interlocking ball 303. A spherical push block 502 is fixedly connected to the side of the push rod 501 close to the inside of the convex annular groove 204. The spherical push block 502 is arranged in the convex annular groove 204. The spherical push block 502 is fixedly connected to the inner wall of the convex annular groove 204 near the side of the interlocking limit groove 203 with a spring, and the convex annular groove 204 is rotatably connected to the inside of the convex annular groove 204. The rotating ring 503 is rotatably connected to the inside of the rotating ring 503. A plurality of extrusion rollers 504 are rotatably connected to the inside of the rotating ring 503. The plurality of extrusion rollers 504 correspond to each spherical push block 502 respectively, and the extrusion rollers 504 are against the outer wall of the spherical push block 502. The bottom of the rotating ring 503 is fixedly connected to a lower annular cylinder 505, and the lower annular cylinder 505 is rotatably connected to the inside of the rotating groove 205. The outer wall of the lower annular cylinder 505 is provided with a plurality of track bar holes 506, and the plurality of track bar holes 506 are distributed corresponding to each vertical bar hole 206 respectively, and each track bar hole 506 is slidably connected to the inside There is a control slide bar 507, and the control slide bar 507 is slidably connected to the vertical bar hole 206. Multiple control slide bars 507 are located on one side of the air intake cylinder 201 and are fixedly connected to a lower pressure frame 508. A circular hole is set at the center of the lower pressure frame 508, and the diameter of the circular hole is larger than the maximum length between each diagonal corner of the polygonal tube 401. The top of the fixed frame 208 is against the bottom of the spring plate 403. When the airflow entering the air intake cylinder 201 is too fast and the impact force on the force plate 402 is too large, the polygonal tube 401 passing through the swirl plate 301 will increase its downward range, causing the bottom of the spring plate 403 to be against the top of the lower pressure frame 508. The downward pressure continuously applied to the force plate 402 by the impact force of the airflow will push through the spring plate 403. The lower pressure frame 508 is moved downward, thereby driving multiple control slide bars 507 to descend vertically inside the vertical bar holes 206, and then through the track bar holes 506 obliquely set on the lower annular cylinder 505, the lower annular cylinder 505 can be rotated inside the rotating groove 205 according to the guidance of the track bar holes 506 and the limit of the vertical bar holes 206, thereby driving the rotating ring 503 to rotate inside the convex annular groove 204, and through the rotation of the rotating ring 503, the extrusion roller 504 inside the rotating ring 503 gradually contacts the spherical surface of the spherical push block 502, and applies thrust to the spherical push block 502, compressing the spring between the spherical push block 502 and the inner wall of the convex annular groove 204, so that the push rod 501 penetrates into the interior of the interlocking limit groove 203.

[0052] The working principle of the technical solution provided by the present invention is as follows:

[0053] When the airflow into the air inlet cylinder 201 is too fast and the impact force on the force plate 402 is too large, the polygonal tube 401 passing through the swirl plate 301 will increase its downward range, causing the bottom of the spring plate 403 to abut against the top of the lower pressure frame 508. The downward pressure continuously applied to the force plate 402 by the impact of the airflow will push the lower pressure frame 508 downward through the spring plate 403, thereby driving the multiple control slide bars 507 to vertically descend inside the vertical bar holes 206, and then ascend through the lower annular cylinder 505. The obliquely arranged track bar hole 506 can, according to the guide of the track bar hole 506 and the limit of the vertical bar hole 206, toggle the lower annular cylinder 505 to rotate inside the rotating groove 205, thereby driving the rotating ring 503 to rotate inside the convex annular groove 204. Through the rotation of the rotating ring 503, the squeezing roller 504 inside the rotating ring 503 gradually abuts against the spherical surface of the spherical push block 502, and applies a thrust to the spherical push block 502, which in turn presses the spring between the spherical push block 502 and the inner wall of the convex annular groove 204. The push rod 501 is compressed, and the push rod 501 penetrates into the inner part of the interlocking limiting groove 203, and the interlocking ball 303 is pushed toward the outer part of the interlocking limiting groove 203, so that the elastic strip 302 is bent and deformed, so that the interlocking ball 303 gradually leaves the interlocking limiting groove 203. When the airflow above the swirl plate 301 passes through the swirl plate 301, it contacts the blades inside the swirl plate 301, which pushes the swirl plate 301 as a whole to rotate inside the annular rotating groove 207, thereby passing the swirl plate 301 above the swirl plate 301. When the airflow of 01 is too strong, the interlocking ball 303 leaves the interlocking limit groove 203 to release the limit on the position of the swirl plate 301, and the swirl plate 301 rotates to release the pressure applied to the blades inside the swirl plate 301, thereby reducing the pressure on the blades inside the swirl plate 301 when the airflow passes through the swirl plate 301, thereby avoiding the swirl plate 301 blades from being subjected to excessive impact pressure of the high-speed airflow, resulting in bending and deformation, and serious breakage, which affects the normal use of the swirl plate 301.

[0054] Example 2, as Figures 1 to 11As shown, after the exhaust gas generated during filling is drawn into the air intake cylinder 201 through the air pump 209 inside the fixing frame 208, the air flow column generated inside the swirl plate 301 will first impact the force-bearing plate 402, and the force-bearing plate 402 will therefore pass through the center of the swirl plate 301 and slide downward, and the impact force of the air flow is buffered by the spring between the swirl plate 301 and the spring plate 403, so as to avoid that after the exhaust gas is drawn into the air intake cylinder 201, the impact force of the air flow will not be directly applied to the swirl plate 301, so as to avoid that the swirl plate 301 is deformed and damaged, which not only improves the stability of the swirl plate, but also increases the service life of the swirl plate 301, and penetrates the top of the force-bearing plate 402 through the opening of the polygonal tube 401. When the air flow just enters the air intake cylinder 201, it is directly When impacting the top of the force-bearing plate 402, a part of the strong airflow will enter the polygonal tube 401 and enter the air collecting box 405 located below the swirl plate 301, thereby continuously passing through the polygonal tube 401 through the strong airflow that has just entered the air inlet cylinder 201 and entering the polygonal tube 401. The strong airflow continuously entering the air collecting box 405 will diffuse into the air inlet cylinder 201 through multiple air outlet holes on the outer wall of the air collecting box 405, thereby performing secondary cutting and stirring on the gas that has passed through the swirl plate 301 to generate rotation of the airflow, while avoiding the formation of a low-speed dead zone in the central area of the gas device that swirls after passing through the swirl plate 301, making the airflow form a more complex turbulent flow field, further increasing the contact degree and collision frequency between the gas and the reactants inside the exhaust gas treatment cylinder 6;

[0055] When the airflow continues to apply thrust to the lower pressure frame 508 through the buffer mechanism 4, the push rod 501 will continue to stay inside the interlocking limit groove 203, thereby reducing the depth of the interlocking limit groove 203. During the rotation of the swirl plate 301, the interlocking ball 303 can avoid re-entering the inside of the interlocking limit groove 203 when passing through the interlocking limit groove 203, reducing the resistance generated when the interlocking ball 303 passes through the interlocking limit groove 203, thereby facilitating the continuous rotation and pressure relief of the swirl plate 301, and improving the smoothness of the rotation of the swirl plate 301. During the continuous rotation of the swirl plate 301, the inner wall of the circular hole at the center of the lower pressure frame 508 is larger than the diameter of the polygon of the polygonal tube 401, so that it does not contact the outer wall of the polygonal tube 401. The contact will not affect the rotation of the polygonal tube 401 driven by the swirl plate 301. Therefore, the polygonal tube 401 is driven to rotate by the swirl plate 301, so that the contraction box 408 on the round rod 406 rotates synchronously. The centrifugal force of the rotation of the contraction box 408 is greater than the gravity of the reset spring 410 and the toggle piece connected to the extended toggle rod 409. During the rotation of the contraction box 408, the extended toggle rod 409 is thrown out of the contraction box 408, so that the toggle piece on the extended toggle rod 409 contacts the inner wall of the exhaust gas treatment tube 6. The exhaust gas treatment tube 6 is toggled through the protrusions on the inner wall of the exhaust gas treatment tube 6, causing the inside of the exhaust gas treatment tube 6 to shake, so that the exhaust gas can fully contact the substances inside the exhaust gas treatment tube 6 after passing through the exhaust gas treatment tube 6.

[0056] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A closed type filling machine exhaust gas recovery device, comprising a main body (1), characterized in that: An air intake mechanism (2), the air intake mechanism (2) being arranged on the top of the main body (1), the air intake mechanism (2) comprising an air intake cylinder (201), the air intake cylinder (201) being fixedly connected to the top of the main body (1); A swirl mechanism (3), the swirl mechanism (3) being arranged inside the air inlet cylinder (201), the swirl mechanism (3) being provided with a swirl plate (301), the swirl plate (301) being arranged inside the air inlet cylinder (201), the swirl mechanism (3) being used to limit the swirl plate (301) during normal use of the device, so that the swirl plate (301) is in a fixed state inside the air inlet cylinder (201), and the gas forms a swirling flow state after passing through the swirl plate (301); A buffer mechanism (4), the buffer mechanism (4) being arranged inside the air intake cylinder (201); The protection mechanism (5) is arranged inside the air intake cylinder (201). When the airflow entering the air intake cylinder (201) is too large, the buffer mechanism (4) cooperates with the protection mechanism (5) to release the fixed state of the swirl plate (301), so that when the high-speed airflow passes through the swirl plate (301), the blades inside the swirl plate (301) cause the swirl plate (301) to rotate as a whole.

2. The closed type filling machine exhaust gas recovery device according to claim 1, characterized in that: The bottom of the main body (1) is fixedly connected to a lower connecting tube (101), the lower connecting tube (101) is communicated with the main body (1), the outer wall of the lower connecting tube (101) is fixedly connected to a plurality of pipe joints (102), the bottom of the main body (1) is fixedly connected to an inner core installation opening (103), the upper and lower ends of the inner core installation opening (103) are connected, the top of the main body (1) is fixedly connected to an inner core connecting tube (104), the outer wall of the inner core connecting tube (104) is fixedly connected to a plurality of installation The inner wall of the inner core connecting tube (104) is fixedly connected to a limited extension frame (106), the main body (1) is connected to the air inlet tube (201) through the inner core connecting tube (104), and an exhaust gas treatment tube (6) is detachably installed inside the inner core mounting port (103). A sleeve is provided on the top of the exhaust gas treatment tube (6), and the sleeve is sleeved on the outer wall of the inner core connecting tube (104). A rotating bayonet is provided on the outer wall of the sleeve, and the rotating bayonet is used in conjunction with the mounting frame (105).

3. The closed type filling machine exhaust gas recovery device according to claim 2, characterized in that: The air intake mechanism (2) further comprises a fixing frame (208), wherein the fixing frame (208) is fixedly connected to the top of the air intake cylinder (201), an air pump (209) is fixedly connected inside the fixing frame (208), and an output end of the air pump (209) is in communication with the inside of the air intake cylinder (201).

4. The closed type filling machine exhaust gas recovery device according to claim 3, characterized in that: The outer wall of the air inlet cylinder (201) is fixedly connected with a thickening layer (202), the inner wall of the air inlet cylinder (201) is provided with a plurality of engaging limiting grooves (203), a convex annular groove (204) is provided inside the thickening layer (202), a rotating groove (205) is provided at a point at the bottom of the convex annular groove (204) inside the thickening layer (202), the rotating groove (205) is communicated with the convex annular groove (204), and each A connecting channel is provided between the interlocking limiting groove (203) and the convex annular groove (204); a plurality of vertical strip holes (206) are provided on the inner wall of the air intake cylinder (201); the vertical strip holes (206) are communicated with the rotating groove (205); an annular rotating groove (207) is provided at the connection between the air intake cylinder (201) and the swirl plate (301); the swirl plate (301) is rotatably connected to the inside of the annular rotating groove (207).

5. The closed type filling machine exhaust gas recovery device according to claim 4, characterized in that: The swirl mechanism (3) further comprises a plurality of elastic strips (302), each of which is fixedly connected to the bottom of the swirl plate (301) at an edge close to the inner wall of the air inlet cylinder (201), and each of the elastic strips (302) is fixedly connected to the bottom of a chimeric ball (303), which is chimeric with the inside of the chimeric limiting groove (203).

6. The closed type filling machine exhaust gas recovery device according to claim 5, characterized in that: The buffer mechanism (4) comprises a polygonal tube (401), the polygonal tube (401) being slidably connected to the top of the swirl plate (301), the polygonal tube (401) slidingly passing through the center of the swirl plate (301), the top of the polygonal tube (401) being fixedly connected to a force-bearing plate (402), the outer wall of the polygonal tube (401) being fixedly connected to a spring plate (403), and a tension spring (404) being fixedly connected between the spring plate (403) and the swirl plate (301).

7. The closed type filling machine exhaust gas recovery device according to claim 6, characterized in that: An opening is provided at the connection between the top of the force-bearing plate (402) and the polygonal tube (401); a gas collecting box (405) is fixedly connected to the bottom of the polygonal tube (401); the interior of the polygonal tube (401) is communicated with the interior of the gas collecting box (405); and a plurality of air holes are provided on the outer wall of the gas collecting box (405).

8. The closed type filling machine exhaust gas recovery device according to claim 7, characterized in that: The bottom of the gas collecting box (405) is fixedly connected to a round rod (406), and the round rod (406) slides through the center of the limiting extension frame (106). The outer wall of the round rod (406) is fixedly connected to the limiting frame (407) above the limiting extension frame (106). The end of the outer wall of the round rod (406) away from the limiting frame (407) is fixedly connected to two contraction boxes (408). The two contraction boxes (408) are staggered up and down. The inside of the contraction box (408) is slidably connected to an extension toggle rod (409). The end of the extension toggle rod (409) away from the round rod (406) is provided with a paddle. A reset spring (410) is fixedly connected between the extension toggle rod (409) and the side of the contraction box (408) close to the round rod (406).

9. The closed type filling machine exhaust gas recovery device according to claim 8, characterized in that: The protection mechanism (5) includes a plurality of push rods (501), and the plurality of push rods (501) are respectively slidably connected to the inside of the connecting channel between the plurality of interlocking limiting grooves (203) and the convex annular groove (204), and the push rods (501) are against the outer wall of the interlocking ball (303). The side of the push rod (501) close to the inside of the convex annular groove (204) is fixedly connected with a spherical push block (502), and the spherical push block (502) is arranged in the inside of the convex annular groove (204). A spring is fixedly connected between the spherical push block (502) and the side of the inner wall of the convex annular groove (204) close to the interlocking limiting groove (203), and a rotating ring (503) is rotatably connected inside the convex annular groove (204).

10. The closed type filling machine exhaust gas recovery device according to claim 9, characterized in that: The rotating ring (503) is internally connected to a plurality of squeezing rollers (504), and the plurality of squeezing rollers (504) correspond to each spherical push block (502). The squeezing rollers (504) abut against the outer wall of the spherical push block (502). The bottom of the rotating ring (503) is fixedly connected to a lower annular cylinder (505), and the lower annular cylinder (505) is rotatably connected to the inside of the rotating groove (205). The outer wall of the lower annular cylinder (505) is provided with a plurality of track bar holes (506), and the plurality of track bar holes (506) correspond to each vertical bar. The holes (206) are distributed correspondingly, and each of the track bar holes (506) is slidably connected to a control slide bar (507), and the control slide bar (507) is slidably connected to the inside of the vertical bar hole (206). A plurality of the control slide bars (507) are located on one side inside the air intake cylinder (201) and are fixedly connected to a lower pressure frame (508). A circular hole is provided at the center of the lower pressure frame (508), and the diameter of the circular hole is greater than the maximum length between each diagonal corner of the polygonal tube (401). The top of the fixed frame (208) is against the bottom of the spring plate (403).

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