Opening and closing mechanism and peculiar smell preventing appliance

Abstract

The utility model relates to the technical field of storage appliances, in particular to an opening and closing mechanism and an anti-odor appliance. The utility model provides an opening and closing mechanism which comprises an opening and closing assembly, the opening and closing assembly comprises a first mechanism and a second mechanism which are arranged in a mirror image mode, and the first mechanism and the second mechanism are at least partially attached. When foreign matter enters, the attaching state of the first mechanism and the second mechanism can be changed by the foreign matter depending on gravity. After the foreign matter enters, the first mechanism and the second mechanism can be reset to be at least partially attached. The opening and closing assembly is used for isolating odor emitted by foreign matters in the foreign matter bag, the foreign matter bag is used for bearing the foreign matters, and after the foreign matters fall into the foreign matter bag, the first mechanism and the second mechanism are at least partially attached to seal the foreign matter bag. The bagged foreign matter storage device solves the problem that the smell of foreign matters in the bagged foreign matter storage device is diffused and the peculiar smell is resisted, so that the human body is harmed.

Description

Technical Field

[0001] This utility model relates to the field of storage equipment technology, and in particular to an opening and closing mechanism and an odor-proof device. Background Technology

[0002] Existing bagged waste storage containers are widely used due to their convenience. For example, they are used to store kitchen waste, such as vegetable leaves, leftover food, fruit peels, eggshells, and tea dregs. These mainly come from home kitchens, restaurants, and other food processing industries. However, because it is impossible to clean the kitchen waste storage containers in a timely manner, the mixed fermentation of the kitchen waste inside will produce a strong odor.

[0003] Similarly, there are bag-type toilets, mostly used in RVs or mobile living environments, and by people with mobility impairments. While they are flexible in use, the odor escapes after use, causing a strong unpleasant smell, and mitigating this with degradation agents is costly. These odorous gases not only cause olfactory discomfort but also pose health risks to people who are exposed to such pollutants for extended periods.

[0004] Therefore, how to provide an opening and closing mechanism and an odor-preventing device that blocks the odor of foreign objects in bagged foreign object storage containers from escaping and causing odor backflow, thereby reducing the harm to the human body, is a technical problem that urgently needs to be solved. Utility Model Content

[0005] This utility model provides an opening and closing mechanism and an anti-odor device, which solves the problem of odor emission and odor backflow from foreign objects in bagged foreign object storage containers, thereby causing harm to the human body.

[0006] The first aspect of this utility model provides an opening and closing mechanism, comprising: an opening and closing component, wherein the opening and closing component includes a first mechanism and a second mechanism that are mirror-arranged, and the first mechanism and the second mechanism are at least partially in contact with each other;

[0007] When a foreign object enters, the first mechanism and the second mechanism can have their contact state changed by gravity due to the foreign object.

[0008] Once the foreign object has entered, the first mechanism and the second mechanism can be reset to at least a partially fitted state;

[0009] The opening and closing assembly is used to isolate the odor emitted by the foreign object in the foreign object bag, wherein the foreign object bag is used to hold the foreign object, and after the foreign object falls into the foreign object bag, the first mechanism and the second mechanism are at least partially fitted together to close the foreign object bag.

[0010] In one possible implementation, both the first mechanism and the second mechanism include an opening / closing boom and an opening / closing base rod, wherein the opening / closing boom is connected to the end side of the opening / closing base rod.

[0011] One possible implementation also includes an opening and closing guide plate, which is disposed on the outer side of the opening and closing bottom rod.

[0012] In one possible implementation, an opening and closing transmission link is provided between the two opening and closing rods that are mirrored, and the opening and closing transmission link includes an opening and closing drive rod, a first transmission link, and a second transmission link;

[0013] The first transmission link and the second transmission link are respectively hinged at both ends of the opening and closing active rod;

[0014] The end of the first transmission link away from the opening / closing active rod is connected to one of the two opening / closing lifting rods that are mirror-arranged;

[0015] The end of the second transmission link away from the opening / closing drive rod is connected to the other of the two opening / closing rods that are mirror-arranged.

[0016] In one possible implementation, the opening / closing active rod is provided with an opening / closing active shaft, and the free end of the opening / closing active shaft is provided with an opening / closing handle.

[0017] The second aspect of this utility model provides an odor-preventing device, including the opening and closing mechanism of any one of the above-mentioned methods. The odor-preventing device also includes a device body, the device body having an upward opening, and the device body having a receiving space. The opening and closing component and the foreign object bag are disposed in the receiving space.

[0018] One possible implementation also includes an opening / closing drive shaft and an opening / closing handle. A through hole is provided on the side wall of the main body of the device. The opening / closing drive shaft passes through the through hole and is connected to the opening / closing handle to control the engagement state of the first mechanism and the second mechanism.

[0019] In one possible implementation, an upper ring is provided at the open end of the device body, which is used to fix the open end of the foreign object bag.

[0020] In one possible implementation, the opening end of the device body is provided with a device cover ring, the device cover ring is provided with a water spray assembly, the first mechanism and the second mechanism are partially fitted together to isolate the foreign object bag into an upper bag body and a lower bag body, and the water spray assembly is used to rinse the foreign object remaining in the upper bag body so that the foreign object remaining in the upper bag body can enter the lower bag body.

[0021] The beneficial effects of this invention are as follows: Without affecting the discharge of foreign objects into the foreign object bag, the first and second mechanisms partially fit together to seal the foreign object bag. The opening and closing components block the path for odor emission and re-odor transmission from the foreign object bag, thus preventing odor emission and re-odor transmission. This solves the problem of foreign objects in bagged foreign object storage containers emitting and re-emitting odors, thereby posing a health hazard. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is an exploded view of an opening and closing mechanism and a foreign object bag according to the present invention;

[0024] Figure 2 This is an exploded view of an odor-preventing device according to the present invention;

[0025] Figure 3 This is a three-dimensional cross-sectional view of the opening and closing component of an anti-odor device of the present invention when a foreign object enters.

[0026] Figure 4 This is a three-dimensional cross-sectional view of the opening and closing component of an anti-odor device of the present invention after a foreign object has entered.

[0027] Figure 5 The front view of the opening and closing component of the anti-odor device of this utility model when opened;

[0028] Figure 6 This is a front view of the closed opening and closing component of an anti-odor device according to this utility model;

[0029] Figure 7 This is a front view of the opening and closing component of an anti-odor device of this utility model when a foreign object enters.

[0030] Figure 8 This is a front view of the opening and closing component of an anti-odor device of this utility model after a foreign object has entered.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Opening and closing assembly; 101. First mechanism; 102. Second mechanism; 2. Foreign object; 3. Foreign object bag; 301. Upper bag body; 302. Lower bag body; 4. Opening and closing lifting rod; 5. Opening and closing bottom rod; 6. Opening and closing guide plate; 7. Opening and closing transmission linkage; 701. Opening and closing drive rod; 702. First transmission linkage; 703. Second transmission linkage; 8. Opening and closing drive shaft; 9. Opening and closing handle; 10. Appliance body; 11. Accommodation space; 12. Through hole; 13. Appliance upper ring; 14. Appliance upper cover ring; 15. Water spray assembly; 151. Sprayer head; 152. Pipe. Detailed Implementation

[0033] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] See Figure 1The present invention provides an opening and closing mechanism, comprising: an opening and closing component 1, which includes a first mechanism 101 and a second mechanism 102 mirror-arranged, the first mechanism 101 and the second mechanism 102 being at least partially engaged. When a foreign object 2 enters, the engagement state of the first mechanism 101 and the second mechanism 102 can be changed by gravity due to the foreign object 2. After the foreign object 2 has entered, the first mechanism 101 and the second mechanism 102 can return to the state of at least partial engagement. The opening and closing component 1 is used to isolate the odor emitted by the foreign object 2 in the foreign object bag 3, wherein the foreign object bag 3 is used to hold the foreign object 2, and after the foreign object 2 falls into the foreign object bag 3, the first mechanism 101 and the second mechanism 102 are at least partially engaged to close the foreign object bag 3.

[0037] Without affecting the discharge of foreign object 2 into foreign object bag 3, the first mechanism 101 and the second mechanism 102 partially adhere together to seal the foreign object bag 3. The partial adhesion of the opening and closing component 1 blocks the path of odor emission and re-odorization of foreign object 2 inside the foreign object bag 3, thus preventing odor emission and re-odorization from the foreign object 2 inside the foreign object bag 3. This solves the problem that foreign object 2 in bagged storage containers may emit and re-odor, thereby causing harm to the human body.

[0038] The first mechanism 101 and the second mechanism 102 in the opening and closing assembly 1 have appropriate gravity-based opening and closing functions, meaning that the first mechanism 101 and the second mechanism 102 are partially fitted together when not disturbed by external forces. After being disturbed by external forces, the first mechanism 101 and the second mechanism 102 can return to the partially fitted state by their own gravity. The foreign object bag 3 is abutted and clamped at the position where the first mechanism 101 and the second mechanism 102 are partially fitted, thus sealing the foreign object bag 3. The foreign object bag 3 is custom-made and used in conjunction with the opening and closing assembly 1 so that the foreign object bag 3 can be well sealed when the first mechanism 101 and the second mechanism 102 are partially fitted together.

[0039] See Figure 2 , Figure 3 and Figure 4 In some embodiments, both the first mechanism 101 and the second mechanism 102 include an opening / closing boom 4 and an opening / closing base rod 5. The opening / closing boom 4 is connected to the end side of the opening / closing base rod 5. Preferably, the opening / closing boom 4 is fixedly connected to the end side of the opening / closing base rod 5. Furthermore, the opening / closing mechanism 1 also includes an opening / closing guide plate 6, which is disposed on the outer side of the opening / closing base rod 5.

[0040] Specifically, when the foreign object 2 enters the opening end of the foreign object bag 3 and passes through the first mechanism 101 and the second mechanism 102, the foreign object 2 changes the contact state of the two opening and closing bottom rods 5 due to its own gravity. When the foreign object 2 enters the foreign object bag 3 from the side wall of the opening end, the opening and closing guide plate 6 guides the foreign object 2 to fall towards the opening and closing bottom rods 5 through its own slope. The two opening and closing bottom rods 5 are separated to the sides by force, and a gap appears between the two opening and closing bottom rods 5. The foreign object 2 continues to fall down through this gap, thus entering the bottom of the foreign object bag 3.

[0041] Once the foreign object 2 has entered, the first mechanism 101 and the second mechanism 102 are no longer affected by external forces, and the two opening and closing bottom rods 5 return to their fitted state, resealing the foreign object bag 3.

[0042] In some embodiments, an opening and closing transmission link 7 is provided between two mirror-arranged opening and closing rods 4. The opening and closing transmission link 7 includes an opening and closing drive rod 701, a first transmission link 702, and a second transmission link 703. The two ends of the opening and closing drive rod 701 are respectively hinged to the first transmission link 702 and the second transmission link 703. The end of the first transmission link 702 away from the opening and closing drive rod 701 is connected to one of the mirror-arranged opening and closing rods 4. The end of the second transmission link 703 away from the opening and closing drive rod 701 is connected to the other of the mirror-arranged opening and closing rods 4. Further, an opening and closing drive shaft 8 is provided on the opening and closing drive rod 701. An opening and closing handle 9 is provided at the free end of the opening and closing drive shaft 8. Preferably, the opening and closing handle 9 is detachably provided at the free end of the opening and closing drive shaft 8.

[0043] In this system, rotating the opening / closing handle 9 causes the opening / closing drive shaft 8 to rotate synchronously, driving the opening / closing drive rod 701 to rotate. The rotation of the opening / closing drive rod 701 then pulls the first transmission connecting rod 702 and the second transmission connecting rod 703 on either side. This controls the positional relationship between the two opening / closing lifting rods 4, which in turn controls the distance between the two opening / closing bottom rods 5. Ultimately, this controls the sealing or opening of the foreign object bag 3.

[0044] When the foreign object bag 3 contains enough foreign objects 2, turn the opening and closing handle 9 to control and adjust the distance between the two opening and closing bottom rods 5. Then tie the knot at the opening end of the foreign object bag 3. Depending on the situation, you can choose to dispose of the foreign object bag 3 in a centralized manner or place it in a designated disposal area.

[0045] It should be noted that the opening and closing handle 9 can be rotated manually or by setting a locking element, so that the opening and closing of the opening and closing assembly 1 can be controlled manually or by a similar electric automatic control.

[0046] See Figure 5 and Figure 6The second aspect of this utility model provides an anti-odor device, including the opening and closing mechanism mentioned above. The anti-odor device also includes a device body 10, which has an upward opening and a receiving space 11 inside. An opening and closing component 1 and a foreign object bag 3 are disposed in the receiving space 11.

[0047] The main body 10 of the device, which has a accommodating space 11, can provide a better location for the foreign object bag 3 to cope with more usage scenarios.

[0048] In some embodiments, the anti-odor device further includes an opening and closing drive shaft 8 and an opening and closing handle 9. A through hole 12 is provided on the side wall of the device body. The opening and closing drive shaft 8 passes through the through hole 12 and is connected to the opening and closing handle 9 to control the contact state of the first mechanism 101 and the second mechanism 102.

[0049] It should be noted that the opening / closing drive shaft and opening / closing handle in this embodiment can be the corresponding components that appeared in the above embodiments. Preferably, the end of the opening / closing rod 4 that is far from the closing bottom rod 5 can be set in the receiving space 11 of the appliance body 10.

[0050] In some embodiments, the anti-odor appliance further includes a male locking component and a female locking component. The male locking component is disposed on the appliance body 10, and the female locking component is disposed on the opening and closing handle 9. The male locking component and the female locking component are interlocked to achieve the opening and closing positioning function.

[0051] Preferably, a buckle is provided on the main body 10 of the device, and a latch can be provided on the opening and closing handle 9. The latch and the latch interlock when the opening and closing handle 9 is rotated to the maximum angle on the main body 10 of the device. This allows the hands to be freed when the first mechanism 101 and the second mechanism 102 are separated when the opening and closing handle 9 is rotated, making it easier to replace the foreign object bag 3 and tie the knot.

[0052] In some embodiments, an upper ring 13 is provided at the open end of the device body 10, which is used to fix the open end of the foreign object bag 3. Preferably, one end of the opening and closing rod 4 is hinged to the inner wall of the upper ring 13. The upper ring 13 is detachably provided at the open end of the device body 10, which facilitates the maintenance and replacement of the opening and closing assembly 1 when it malfunctions. The upper ring 13 has a protruding outer edge, which can better fix the open end of the foreign object bag 3.

[0053] See Figure 7 and Figure 8Furthermore, the opening end of the device body 10 is provided with a device cover ring 14. Furthermore, the device cover ring 14 is provided with a water spray assembly 15. The first mechanism 101 and the second mechanism 102 are partially attached to each other, separating the foreign object bag 3 into an upper bag body 301 and a lower bag body 302. The water spray assembly 15 is used to rinse the foreign object 2 remaining in the upper bag body 301 so that the foreign object 2 remaining in the upper bag body 301 can enter the lower bag body 302.

[0054] It should be noted that the water spray assembly 15 includes a nozzle 151 and a pipe 152. The nozzle 151 is used to spray water from the pipe 152. The pipe 152 is connected to a power unit, preferably a water pump. The water spray assembly 15 can be started or stopped manually, or it can be controlled electrically or automatically. Preferably, the nozzle 151 faces the side wall of the upper bag 301 and the opening and closing bottom rod 5. The nozzle 151 has a jog spray function, saving water while cleaning foreign matter 2 residue from the upper bag 301. A water storage tank can also be provided to ensure that residents are not affected by water outages and to make it convenient to use.

[0055] The entire cleaning process needs to be simple and quick to minimize user inconvenience and ensure efficient storage of the foreign object 2. This design allows users to manage the foreign object 2 more comfortably and conveniently, especially in outdoor activities or long-term care environments.

[0056] When the main body 10 is specifically a toilet body, the combination of the opening and closing component 1 and the foreign matter bag 3 can block the emission of fecal odor and reverse odor, as well as facilitate the convenient collection and disposal of fecal matter, making it suitable for many human defecation scenarios such as homes, RVs, and camping.

[0057] One drawback of existing flush toilets is the waste of water; the amount of water used for one flush is equivalent to washing one's face three times. A second drawback is increased sewage disposal costs. In rural areas, natural seepage wells become less efficient due to the mixing of feces, and even with septic tanks, the frequency of cleaning increases. A third drawback is their dependence on abundant water and unobstructed sewer systems (in cities); if the water supply is interrupted, the toilet becomes unusable, causing significant inconvenience to residents. A fourth drawback is the reliance on chemical agents for cleaning limescale from toilets, many of which are harmful substances and cause serious environmental pollution.

[0058] This application utilizes a momentary spray nozzle 151 to flush the bag body 301 of the foreign matter bag 3, significantly reducing water consumption. The use of the foreign matter bag 3 facilitates the collection and treatment of feces, promoting subsequent development and utilization, such as the production of biogas feedstock and organic fertilizer, thus alleviating sewage pressure and increasing revenue. The combination of a water storage tank and the spray system allows residents to use the toilet without disruption during water outages. Furthermore, the elimination of chemical cleaning agents for the toilet reduces costs and environmental pollution.

[0059] Foreign matter bags 3 are mostly made of materials that are easy to clean and disinfect, ensuring hygiene and preventing bacterial growth. Although the cost of foreign matter bags 3 is comparable to the water bill (for traditional flush toilets), their significance in saving water resources and related social benefits is very important.

[0060] One of the drawbacks of existing pull-out toilets is that they are prone to odor, which requires degradation agents to alleviate, and the cost is relatively high. Another drawback is that they need to be flushed regularly, and splashing is easy to occur during flushing, followed by tedious cleaning and flushing, which greatly increases labor costs.

[0061] This application uses the combination of the opening and closing component 1 and the foreign matter bag 3 to store feces, eliminating the need for degradation agents and reducing costs. Furthermore, the discharge and cleaning are carried out by fastening and knotting the foreign matter bag 3, which is efficient and convenient.

[0062] One drawback of existing portable toilets is that the lid does not close properly during and after use, causing odors to escape and pollute the air. Another drawback is that excrement is always visible during use, causing visual discomfort and affecting environmental hygiene.

[0063] This application, through the sealing of the foreign object bag 3 by the opening and closing component 1, blocks the path of fecal odor emission and re-odor transmission from the foreign object bag 3, thus preventing the emission and re-odor transmission of fecal odor from the foreign object bag 3. Simultaneously, it isolates excrement, maintaining environmental hygiene.

[0064] The following is a detailed process description, taking the main body 10 of the appliance as the toilet body:

[0065] First, open the toilet seat cover. Then, place the foreign object bag 3 into the receiving space 11 of the toilet body. Place the open end of the foreign object bag 3 onto the toilet seat cover and secure it to the outer edge of the cover. Next, reinstall the toilet seat cover onto the toilet body. Finally, fasten the toilet seat cover onto the toilet body. This is for use when using the toilet.

[0066] During toilet use, feces pass through the opening of the foreign matter bag 3 and continue to fall. Due to gravity, the two opening and closing bottom rods 5 change their contact state. Alternatively, when feces enter the bottom of the foreign matter bag 3 from the side wall of the opening end, the opening and closing guide plate 6 guides the feces downwards towards the opening and closing bottom rods 5 through its own slope, and the feces enter the lower bag body 302 of the foreign matter bag 3. After the feces fall into the lower bag body 302, the two opening and closing bottom rods 5 return to their contact state, separating the foreign matter bag 3 into the upper bag body 301 and the lower bag body 302. The feces are in the lower bag body 302, and due to the contact state of the two opening and closing bottom rods 5, the lower bag body 302 is in a closed state.

[0067] When fecal residue remains at the bottom of the upper bag 301, the nozzle 151 is activated. The nozzle 151 sprays water intermittently to rinse the fecal residue. Initially, the fecal residue is too light to change the adhesion of the two opening and closing bottom rods 5 and enter the lower bag 302. However, after mixing with water, the mass becomes heavy enough to change the adhesion of the two opening and closing bottom rods 5 and enter the lower bag 302.

[0068] When the foreign object bag 3 reaches a suitable load or needs to be cleaned periodically, turn the opening and closing handle 9 to move the two opening and closing base rods 5 away from each other, and then fix the buckle and latch to free your hands. Open the toilet seat ring, release the opening end of the foreign object bag 3 from the toilet seat ring, and then tie the knot at the opening end of the foreign object bag 3 to seal the foreign object bag 3.

[0069] The specific embodiments of this utility model have been described above with reference to the accompanying drawings, but these descriptions should not be construed as limiting the scope of this utility model. The scope of protection of this utility model is defined by the appended claims, and any modifications based on the claims of this utility model shall be within the scope of protection of this utility model.

[0070] In the above embodiments, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0071] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "method," "specific method," or "some methods," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or method is included in at least one embodiment or method of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or method. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or methods. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or methods described in this specification, as well as the features of different embodiments or methods.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An opening and closing mechanism, characterized in that, Includes: an opening and closing component, the opening and closing component comprising a first mechanism and a second mechanism mirrored together, the first mechanism and the second mechanism being at least partially engaged; When a foreign object enters, the first mechanism and the second mechanism can have their contact state changed by gravity due to the foreign object. Once the foreign object has entered, the first mechanism and the second mechanism can be reset to at least a partially fitted state; The opening and closing assembly is used to isolate the odor emitted by the foreign object in the foreign object bag, wherein the foreign object bag is used to hold the foreign object, and after the foreign object falls into the foreign object bag, the first mechanism and the second mechanism are at least partially fitted together to close the foreign object bag.

2. The opening and closing mechanism according to claim 1, characterized in that, Both the first mechanism and the second mechanism include an opening and closing lifting rod and an opening and closing bottom rod, wherein the opening and closing lifting rod is connected to the end side of the opening and closing bottom rod.

3. The opening and closing mechanism according to claim 2, characterized in that, It also includes an opening and closing guide plate, which is disposed on the outer side of the opening and closing bottom rod.

4. The opening and closing mechanism according to claim 3, characterized in that, An opening and closing transmission link is provided between the two opening and closing rods that are mirrored. The opening and closing transmission link includes an opening and closing active rod, a first transmission link, and a second transmission link. The first transmission link and the second transmission link are respectively hinged at both ends of the opening and closing active rod; The end of the first transmission link away from the opening / closing active rod is connected to one of the two opening / closing lifting rods that are mirror-arranged; The end of the second transmission link away from the opening and closing drive rod is connected to the other of the two opening and closing lifting rods that are mirror-arranged.

5. The opening and closing mechanism according to claim 4, characterized in that, The opening and closing active rod is provided with an opening and closing active shaft, and the free end of the opening and closing active shaft is provided with an opening and closing handle.

6. An odor-preventing device, comprising the opening and closing mechanism according to any one of claims 1 to 5, characterized in that, It also includes a device body having an upward opening and an accommodating space therein, within which the opening and closing assembly and the foreign object bag are disposed.

7. The odor-preventing appliance according to claim 6, characterized in that, It also includes an opening and closing drive shaft and an opening and closing handle. The main body of the device has a through hole on its side wall. The opening and closing drive shaft passes through the through hole and connects to the opening and closing handle to control the engagement state of the first mechanism and the second mechanism.

8. The odor-preventing appliance according to claim 7, characterized in that, The opening end of the device body is provided with an upper device ring, which is used to fix the opening end of the foreign object bag.

9. The odor-preventing device according to claim 8, characterized in that, The main body of the device is provided with an upper cover ring at its open end. The upper cover ring is provided with a water spray assembly. The first mechanism and the second mechanism are partially fitted together to separate the foreign object bag into an upper bag body and a lower bag body. The water spray assembly is used to rinse the foreign object remaining in the upper bag body so that the foreign object remaining in the upper bag body can enter the lower bag body.

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