Waste liquid bag appearance welding structure

Abstract

The utility model relates to a waste liquid bag appearance welding structure which comprises a main machine, the outer side of the main machine is fixedly connected with left and right opposite supporting plates, the side, close to the main machine, of the top end of each supporting plate is fixedly connected with a first limiting frame, and the right side of the top end of the right supporting plate is fixedly connected with a second limiting frame. Limiting rods are arranged at the middle ends of the first limiting frame and the second limiting frame, the top end of the supporting plate on the right side is fixedly connected with front and back opposite supporting rods, and the top ends of the supporting rods are fixedly connected with evenly-distributed limiting rings. According to the shape welding structure of the waste liquid bag, through thorough cleaning before the waste liquid bag is welded, grease, dust and other surface impurities can be effectively removed in the process, adverse chemical reaction at high temperature is avoided, premature abrasion and blockage of equipment are prevented, the service life of the equipment is prolonged, and the production efficiency is improved. And the product is ensured to meet strict safety standards.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste liquid bags, and specifically relates to a welding structure for the outer shape of a waste liquid bag. Background Art

[0002] The design and manufacture of waste liquid bags are crucial for medical, chemical, and laboratory environments, and are used for safely collecting and disposing of liquid waste that may contain harmful chemicals or biological substances. The welding structure is particularly critical as it ensures the sealing, durability, and safety of the waste liquid bags. By using advanced welding techniques such as heat sealing and ultrasonic welding, these bags can resist chemical corrosion, withstand different temperature conditions, and have high strength to cope with the pressures during transportation and handling. In addition, modern welding methods improve production efficiency and contribute to environmental sustainability by reducing the impact on the environment through the selection of environmentally friendly materials. Overall, the welding structure for the outer shape of the waste liquid bag is an essential part of its design and plays a key role in ensuring safe and efficient use.

[0003] After retrieval, the existing patent (publication number: CN216968699U) discloses a hot press welding device for producing waste liquid bags, which includes a water tank. The top of the water tank is fixedly connected with two support rods, and a top plate is fixedly connected between the tops of the two support rods. The bottom of the top plate is fixedly connected with a hydraulic rod, and the telescopic end of the hydraulic rod is fixedly connected with a heating block. One side of the water tank is fixedly connected with a support plate, and an electric telescopic rod is fixedly connected to the side of the support plate close to the heating block. The telescopic end of the electric telescopic rod is fixedly connected with a scraping blade, and the bottom of the scraping blade is in contact with the top of the water tank. For this hot press welding device for producing waste liquid bags, by starting the electric telescopic rod, it drives the scraping blade to move back and forth, thereby removing the plastic residues attached to the water tank. At the same time, starting the water pump causes the water in the water tank to be sprayed out through the nozzle, so that the residues are washed into the water tank through the leakage holes, thereby achieving the effect of treating the plastic residues.

[0004] However, during the actual use of the above solution, the surface of the raw material is not cleaned. It is crucial to perform thorough cleaning before welding the waste liquid bag. This step can remove dust, grease, and other contaminants on the surface, ensure the welding quality, prevent potential chemical reactions from generating harmful gases, and also contribute to maintaining the long-term operation of the equipment and extending its service life. In addition, keeping the welding area clean also helps to meet strict safety and hygiene standards, ensure the safety of the product during use, and thus achieve consistent quality standards and repeatability during the production process.

[0005] Therefore, the utility model provides a welding structure for the outer shape of a waste liquid bag. Summary of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve the problem that the surface of raw materials cannot be cleaned before welding, a welding structure with the shape of a waste liquid bag proposed by the present utility model is provided.

[0007] The technical solution adopted by the present utility model to solve its technical problems is as follows: A welding structure with the shape of a waste liquid bag according to the present utility model includes a main machine. On the outer side of the main machine, there are relatively left and right fixed connection support plates. On the top of the support plate near one side of the main machine, there is a first limit frame fixedly connected. On the right side of the top of the right support plate, there is a second limit frame fixedly connected. A limit rod is arranged in the middle of the first limit frame and the second limit frame. On the top of the right support plate, there are relatively front and rear fixed connection support rods. On the top of the support rods, there are evenly distributed limit rings fixedly connected. Inside the limit rings, an air inlet pipe is rotatably connected. On the outer end of the rear side of the air inlet pipe, there is a transmission wheel fixedly connected. On the outer wall of the rear side of the rear support rod, there is a motor fixedly connected. The output end of the motor is fixedly connected with a driving wheel. The driving wheel is fixedly connected with the rear support rod. On the front end of the driving wheel, there is a first cleaning rod fixedly connected. The first cleaning rod is meshed with the transmission wheel. On the top of the transmission wheel, there is a driven wheel meshed. On the front end of the driven wheel, there is a third cleaning rod fixedly connected. The outer end of the third cleaning rod is rotatably connected with the top of the limit ring through a limit plate. On the inner wall of one end of the inner side of the limit ring, there is a protective cover fixedly connected. The protective cover is rotatably connected with the third cleaning rod and the first cleaning rod.

[0008] Further, on the front side of the air inlet pipe, there are evenly distributed second air outlet openings. On the rear side of the air inlet pipe, there are evenly distributed first air outlet openings. On the outer wall of the front side of the air inlet pipe, there are evenly distributed second cleaning rods fixedly connected.

[0009] Further, on the inner side of the middle end of the air inlet pipe, there is a sealing plate fixedly connected. On the inner end of the rear side of the air inlet pipe, there are evenly distributed fixing frames fixedly connected. Inside the fixing frames, there are transmission rods fixedly connected. On the outer end of the rear side of the transmission rods, there are evenly distributed cleaning plates fixedly connected.

[0010] Further, on the outer end of the rear side of the air inlet pipe, there is a sealing ring rotatably connected. On the inner end of the rear side of the sealing ring, there is a connecting pipe rotatably connected. On the inner end of the rear side of the connecting pipe, there is a filter plate fixedly connected. The filter plate is rotatably connected with the cleaning plate.

[0011] Further, at the bottom end of the right side of the connecting pipe, there is a collection box fixedly connected.

[0012] Further, on the rear side of the connecting pipe, there is a protective cylinder fixedly connected. Inside the protective cylinder, there is a fan fixedly connected.

[0013] Further, on the rear side of the protective cylinder, there is a ventilation pipe fixedly connected. On the bottom end of the left side of the ventilation pipe, there are evenly distributed spray heads fixedly connected.

[0014] Furthermore, evenly distributed bottom sealing plates are fixedly connected to the top side of the middle end of the main machine. On the top of the rear side of the main machine, brackets opposite to each other left and right are fixedly connected. A hydraulic rod is fixedly connected to the top of the brackets. A heat sealer is fixedly connected to the output end of the hydraulic rod. A corresponding top sealing plate is fixedly connected to the bottom end of the heat sealer.

[0015] The beneficial effects of the present utility model are as follows:

[0016] 1. For the outer shape welding structure of the waste liquid bag described in the present utility model, the motor drives the driving wheel to rotate. At the same time, the driving wheel drives the driven wheel to rotate through the transmission wheel. The driving wheel drives the first cleaning rod to rotate, and the driven wheel drives the third cleaning rod to rotate, so as to clean the surfaces of the raw materials at the top and bottom. Thorough cleaning before welding the waste liquid bag is crucial for ensuring the integrity and durability of the welding structure. This process can effectively remove grease, dust and other surface impurities, avoid adverse chemical reactions at high temperatures, thereby improving the continuity and overall strength of the weld. In addition, cleaning helps to prevent premature wear and blockage of the equipment, extends its service life, and ensures that the product meets strict safety standards. Therefore, the cleaning work before welding the waste liquid bag is a key step to improve product quality, ensure production efficiency and maintain work safety.

[0017] 2. For the outer shape welding structure of the waste liquid bag described in the present utility model, the fan extracts external air through the protective cylinder, connecting pipe, sealing ring and air inlet pipe. The external air enters the protective cover through the second air outlet and the protective cover and the gap between the first cleaning rod and the third cleaning rod. The second cleaning rod outside the air inlet pipe stirs and cleans the first cleaning rod and the third cleaning rod. At the same time, the air transported through the second air outlet transports the dust cleaned down through the first air outlet into the connecting pipe and filters it with the filter plate to avoid polluting the external air.

[0018] 3. For the outer shape welding structure of the waste liquid bag described in the present utility model, the air inlet pipe drives the cleaning plate to rotate through the fixing frame and the transmission rod, while the filter plate does not move. Thus, the cleaning plate cleans the surface of the filter plate. At the same time, the cleaning plate is pushed outwards, and then the dust and impurities are collected by the collection box.

[0019] The above relevant descriptions of the utility model content are only an overview of the technical solutions of this application. In order to enable those of ordinary skill in the art to more clearly understand the technical solutions of this application, and then can be implemented according to the content recorded in the text of the specification and the drawings. And in order to make the above objects, other objects, features and advantages of this application more easily understood, the following is described in conjunction with the specific implementation manners and drawings of this application. Description of the Drawings

[0020] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, effects, etc. of the specific implementation manners and other related contents of the present application, and should not be considered as a limitation to the present application.

[0021] In the drawings of the specification:

[0022] Figure 1 is the schematic three-dimensional structure in the present utility model Figure 1 and the partial enlarged view at position A;

[0023] Figure 2 is the schematic three-dimensional structure in the present utility model Figure 2 ;

[0024] Figure 3 is the schematic partial three-dimensional structure in the present utility model Figure 1 ;

[0025] Figure 4 is the schematic partial three-dimensional structure in the present utility model Figure 2 ;

[0026] Figure 5 is the schematic cross-sectional structure diagram at the air inlet pipe in the present utility model;

[0027] Figure 6 is the schematic partial three-dimensional structure in the present utility model Figure 3 ;

[0028] In the figure: 1. Main machine; 11. Bottom sealing plate; 12. Bracket; 13. Hydraulic rod; 14. Heat sealer; 15. Top sealing plate; 2. Support plate; 21. First limiting frame; 22. Limiting rod; 23. Second limiting frame; 24. Support rod; 25. Limiting ring; 26. Air inlet pipe; 27. Protective cover; 28. Motor; 29. Driving wheel; 210. First cleaning rod; 211. Driving wheel; 212. Sealing ring; 213. First air outlet; 214. Second air outlet; 215. Second cleaning rod; 216. Fixed frame; 217. Transmission rod; 218. Cleaning plate; 219. Filter plate; 220. Collection box; 221. Driven wheel; 222. Third cleaning rod; 3. Connecting pipe; 31. Protective cylinder; 32. Fan; 33. Ventilation pipe; 34. Sprayer; 4. Sealing plate. Specific implementation manners

[0029] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects, etc. of the present application, the following is detailed in conjunction with the specific examples listed and with reference to the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore are only used as examples and cannot be used to limit the protection scope of the present application.

[0030] References to "embodiments" in this document mean that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0031] Unless otherwise defined, the meanings of the technical terms used in this document are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of the relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0032] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships, for example, X and / or Y, which means: the existence of X, the existence of Y, and the simultaneous existence of X and Y. In addition, the character " / " in this document generally represents an "or" logical relationship between the associated objects before and after.

[0033] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary, or sequential relationships between these entities or operations.

[0034] Without further limitation, in this application, the expressions such as "include", "comprise", "have", or other similar expressions used in the statements are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method, or product including the said elements, so that the process, method, or product including a series of elements can include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such a process, method, or product.

[0035] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the number itself; expressions such as "above", "below", "within", etc. are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "multiple" is two or more (including two), and similar expressions related to "many" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise specifically defined.

[0036] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the specific embodiment or the accompanying drawings, and is only for the convenience of describing the specific embodiments of the present application or facilitating the understanding of the reader, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation on the embodiments of the present application.

[0037] Unless otherwise clearly specified or limited, in the description of the embodiments of the present application, the terms such as "installed", "connected", "coupled", "fixed", "set", etc. shall be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral setting; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium; it may be the communication inside two elements or the interaction relationship between two elements. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0038] Embodiment 1:

[0039] As Figures 1 to 6As shown in the figure, a welding structure for the outer shape of a waste liquid bag according to the present utility model includes a main machine 1. On the outer side of the main machine 1, there are two left and right opposite support plates 2 fixedly connected. The main machine 1 supports and fixes the support plates 2. On the top of the support plate 2, close to one side of the main machine 1, there is a first limiting frame 21 fixedly connected. The support plate 2 supports and fixes the first limiting frame 21, so as to limit the raw materials on both sides through the first limiting frame 21 at the same time. On the top right of the right support plate 2, there is a second limiting frame 23 fixedly connected. The support plate 2 supports and fixes the second limiting frame 23. A limiting rod 22 is arranged in the middle of the first limiting frame 21 and the second limiting frame 23. The support plate 2 supports and fixes the limiting rod 22. On the top of the right support plate 2, there are two front and rear opposite support rods 24 fixedly connected. The support plate 2 supports and fixes the support rods 24. At the top of the support rods 24, there are evenly distributed limiting rings 25 fixedly connected. The support rods 24 fix the limiting rings 25. Inside the limiting rings 25, there is an air inlet pipe 26 rotatably connected. The limiting rings 25 limit the air inlet pipe 26. On the outer end of the rear side of the air inlet pipe 26, there is a transmission wheel 211 fixedly connected. The air inlet pipe 26 fixes the transmission wheel 211. On the outer wall of the rear side of the rear support rod 24, there is a motor 28 fixedly connected. The support rod 24 fixes the motor 28. The output end of the motor 28 is fixedly connected with a driving wheel 29. The motor 28 drives the driving wheel 29 to rotate. The driving wheel 29 is fixedly connected with the rear support rod 24. The support rod 24 limits the driving wheel 29. At the front end of the driving wheel 29, there is a first cleaning rod 210 fixedly connected. The driving wheel 29 fixes the first cleaning rod 210. At the same time, the driving wheel 29 drives the first cleaning rod 210 to rotate. The first cleaning rod 210 is meshed with the transmission wheel 211. The first cleaning rod 210 drives the transmission wheel 211 to rotate. At the top of the transmission wheel 211, there is a driven wheel 221 meshed. The transmission wheel 211 drives the driven wheel 221 to rotate. At the front end of the driven wheel 221, there is a third cleaning rod 222 fixedly connected. The driven wheel 221 drives the third cleaning rod 222 to rotate. The outer end of the third cleaning rod 222 is rotatably connected with the top of the limiting ring 25 through a limiting plate. Both ends of the third cleaning rod 222 and the first cleaning rod 210 are limited on the limiting ring 25 close to one side of the protective cover 27 through a connecting rod. On the inner wall of one end of the inner side of the limiting ring 25, there is a protective cover 27 fixedly connected. The protective cover 27 is fixed on the limiting ring 25 close to one side of the protective cover 27. The protective cover 27 is rotatably connected with the third cleaning rod 222 and the first cleaning rod 210. Soft hairs are arranged on the outer surfaces of the first cleaning rod 210 and the third cleaning rod 222.

[0040] On the front side of the air inlet pipe 26, there are evenly distributed second air outlet openings 214. On the rear side of the air inlet pipe 26, there are evenly distributed first air outlet openings 213. On the outer wall of the front side of the air inlet pipe 26, there are evenly distributed second cleaning rods 215 fixedly connected. The air inlet pipe 26 fixes the second cleaning rods 215.

[0041] A sealing plate 4 is fixedly connected to the inner side of the middle end of the air inlet pipe 26, and the sealing plate 4 is fixed through the air inlet pipe 26. A uniformly distributed fixing frame 216 is fixedly connected to the inner end of the rear side of the air inlet pipe 26, and the fixing frame 216 is fixed through the air inlet pipe 26. A transmission rod 217 is fixedly connected to the inner side of the fixing frame 216, and the transmission rod 217 is fixed through the fixing frame 216. A uniformly distributed cleaning plate 218 is fixedly connected to the outer end of the rear side of the transmission rod 217, and the cleaning plate 218 is fixed through the transmission rod 217.

[0042] A sealing ring 212 is rotatably connected to the outer end of the rear side of the air inlet pipe 26. A connecting pipe 3 is rotatably connected to the inner end of the rear side of the sealing ring 212. The connection position between the air inlet pipe 26 and the connecting pipe 3 is sealed through the sealing ring 212. The air inlet pipe 26 is rotatably connected to the sealing ring 212. A filter plate 219 is fixedly connected to the inner end of the rear side of the connecting pipe 3, and the filter plate 219 is fixed through the connecting pipe 3. The filter plate 219 is rotatably connected to the cleaning plate 218, and the surface of the filter plate 219 is cleaned by the rotation of the cleaning plate 218.

[0043] A collecting box 220 is fixedly connected to the bottom end of the right side of the connecting pipe 3, and the collecting box 220 is fixed through bolts by the connecting pipe 3. A through hole is provided at the connection position between the connecting pipe 3 and the collecting box 220, and the width of the through hole is the same as the span of the cleaning plate 218. Thus, the dust cleaned from the outer wall of the filter plate 219 is pushed into the collecting box 220 by the cleaning plate 218.

[0044] A protective cylinder 31 is fixedly connected to the rear side of the connecting pipe 3, and the protective cylinder 31 is fixed through the connecting pipe 3. A fan 32 is fixedly connected to the inner side of the protective cylinder 31, and the fan 32 is fixed through the protective cylinder 31.

[0045] A ventilation pipe 33 is fixedly connected to the rear side of the protective cylinder 31. A uniformly distributed spray head 34 is fixedly connected to the bottom end of the left side of the ventilation pipe 33. The protective cylinder 31 and the spray head 34 are fixed through the ventilation pipe 33. The air drawn in by the fan 32 cools the heat-sealed waste liquid bag through the ventilation pipe 33 and the spray head 34.

[0046] A uniformly distributed bottom sealing plate 11 is fixedly connected to the top side of the middle end of the main body 1. A left and right opposite support 12 is fixedly connected to the top end of the rear side of the main body 1. A hydraulic rod 13 is fixedly connected to the top end of the support 12. A heat sealer 14 is fixedly connected to the output end of the hydraulic rod 13. A corresponding top sealing plate 15 is fixedly connected to the bottom end of the heat sealer 14. The heat sealer 14 and the top sealing plate 15 are simultaneously driven to move up and down by the hydraulic rod 13. The shape of the waste liquid bag is welded through the cooperation of the top sealing plate 15 and the bottom sealing plate 11.

[0047] Working principle: When the outer welding structure of the waste liquid bag is operating, first, the raw material of the waste liquid bag is limited by the second limiting frame 23, so that the raw material contacts the first cleaning rod 210 and the third cleaning rod 222. The first cleaning rod 210 and the third cleaning rod 222 are in the opposite direction to the advancing direction of the raw material. The motor 28 drives the driving wheel 29 to rotate, and the driving wheel 29 drives the driven wheel 221 to rotate through the transmission wheel 211, so that the driving wheel 29 and the driven wheel 221 rotate in the same direction, while the transmission wheel 211 rotates in the opposite direction to the driving wheel 29 and the driven wheel 221. At the same time, the first cleaning rod 210 and the third cleaning rod 222 are respectively driven by the driving wheel 29 and the driven wheel 221 to rotate synchronously, so as to clean the surface of the raw material. Then, the fan 32 extracts external air through the protective cylinder 31, the connecting pipe 3, the sealing ring 212, the air inlet pipe 26, and the protective cover 27. The air enters the protective cover 27 through the gap between the first cleaning rod 210, the third cleaning rod 222 and the protective cover 27. At the same time, the external air enters the protective cover 27 through the second air outlet 214. While the transmission wheel 211 rotates, it drives the air inlet pipe 26 to rotate, and drives the second cleaning rod 215 to rotate through the air inlet pipe 26. At the same time, the second cleaning rod 215 stirs the soft hairs on the surfaces of the first cleaning rod 210 and the third cleaning rod 222. At the same time, the air entering through the gap between the first cleaning rod 210, the third cleaning rod 222 and the protective cover 27 and the second air outlet 214 blows the dust cleaned off. Then, all the air carrying dust impurities re-enters the air inlet pipe 26 through the first air outlet 213 and is conveyed into the connecting pipe 3. During the conveying process, the dust is cleaned by the filter plate 219. At the same time, the air inlet pipe 26 drives the cleaning plate 218 to rotate through the fixing frame 216 and the transmission rod 217 to clean the dust on the surface of the filter plate 219. The cleaning plate 218 pushes the cleaned dust outward and into the collection box 220 for collection. The filtered air enters the nozzle 34 through the ventilation pipe 33, and then the nozzle 34 sprays the air onto the surface of the waste liquid bag after heat sealing, and the waste liquid bag is cooled down.

[0048] Those skilled in the art can understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of this application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the claims and the description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A waste liquid bag outer shape welding structure, characterized in that: The invention comprises a main machine (1), wherein the outer side of the main machine (1) is fixedly connected with a left-right opposite support plate (2), the top of the support plate (2) close to the main machine (1) is fixedly connected with a first limit frame (21), the right side of the top of the right support plate (2) is fixedly connected with a second limit frame (23), the middle ends of the first limit frame (21) and the second limit frame (23) are provided with a limit rod (22), the top of the right support plate (2) is fixedly connected with a front-back opposite support rod (24), the top of the support rod (24) is fixedly connected with a uniformly distributed limit ring (25), the inner side of the limit ring (25) is rotatably connected with an air intake pipe (26), the rear outer end of the air intake pipe (26) is fixedly connected with a transmission wheel (211), and the rear outer wall of the rear support rod (24) is fixedly connected to the rear side of the support rod (24). A motor (28) is provided, wherein the output end of the motor (28) is fixedly connected to a driving wheel (29), wherein the driving wheel (29) is fixedly connected to a rear support rod (24), wherein the front end of the driving wheel (29) is fixedly connected to a first cleaning rod (210), wherein the first cleaning rod (210) is meshingly connected to a transmission wheel (211), wherein the top end of the transmission wheel (211) is meshingly connected to a driven wheel (221), wherein the front end of the driven wheel (221) is fixedly connected to a third cleaning rod (222), wherein the outer end of the third cleaning rod (222) is rotatably connected to the top end of a limiting ring (25) via a limiting plate, wherein a protective cover (27) is fixedly connected to the inner wall of one end of the inner side of the limiting ring (25), wherein the protective cover (27) is rotatably connected to the third cleaning rod (222) and the first cleaning rod (210).

2. A waste liquid bag outer shape welding structure according to claim 1, characterized in that: The front side of the air inlet pipe (26) is provided with evenly distributed second air outlets (214), the rear side of the air inlet pipe (26) is provided with evenly distributed first air outlets (213), and the front outer wall of the air inlet pipe (26) is fixedly connected with evenly distributed second cleaning rods (215).

3. A waste liquid bag outer shape welding structure according to claim 2, characterized in that: A sealing plate (4) is fixedly connected to the inner side of the middle end of the air intake pipe (26), a uniformly distributed fixing frame (216) is fixedly connected to the inner side of the rear side of the air intake pipe (26), a transmission rod (217) is fixedly connected to the inner side of the fixing frame (216), and a uniformly distributed cleaning plate (218) is fixedly connected to the outer side of the rear side of the transmission rod (217).

4. A waste liquid bag outer shape welding structure according to claim 3, characterized in that: The outer rear end of the air inlet pipe (26) is rotatably connected to a sealing ring (212), the inner rear end of the sealing ring (212) is rotatably connected to a connecting pipe (3), the inner rear end of the connecting pipe (3) is fixedly connected to a filter plate (219), and the filter plate (219) is rotatably connected to a cleaning plate (218).

5. A waste liquid bag outer shape welding structure according to claim 4, characterized in that: The right bottom end of the connecting pipe (3) is fixedly connected to a collecting box (220).

6. A waste liquid bag outer shape welding structure according to claim 5, characterized in that: A protective tube (31) is fixedly connected to the rear side of the connecting tube (3), and a fan (32) is fixedly connected to the inside of the protective tube (31).

7. A waste liquid bag outer shape welding structure according to claim 6, characterized in that: A ventilation pipe (33) is fixedly connected to the rear side of the protective tube (31), and evenly distributed spray heads (34) are fixedly connected to the left bottom end of the ventilation pipe (33).

8. The waste liquid bag outer shape welding structure according to claim 1, characterized in that: The main machine (1) is fixedly connected to the top side of the middle end with a bottom sealing plate (11) that is evenly distributed; the main machine (1) is fixedly connected to the top end of the rear side with left and right opposite brackets (12); the top end of the bracket (12) is fixedly connected to a hydraulic rod (13); the output end of the hydraulic rod (13) is fixedly connected to a heat sealing machine (14); and the bottom end of the heat sealing machine (14) is fixedly connected to a corresponding top sealing plate (15).

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