Odor-resistant door structure

Abstract

The utility model provides a kind of deodorization door structure, for pet toilet device, can reduce the peculiar smell of excrement into toilet space inside.The pet toilet device includes base, and the middle part of base is formed with opening part, and opening part is communicated with toilet space and collection space communication.The deodorization door structure includes door part, and door part has first shielding part and second shielding part, and first shielding part and second shielding part are installed to base in a manner that can be away from each other or close to each other.The one end of first shielding part has first end member, and the one end of second shielding part has second end member, and at least one of first end member and second end member is provided with first seal.In the state that first shielding part and second shielding part are close to each other, first end member and second end member are opposite each other in the middle part of opening part, and first seal is clamped between first end member and second end member, so that opening part is closed.

Description

Technical Field

[0001] This utility model relates to the field of pet supplies technology, and in particular to an odor-proof door structure. Background Technology

[0002] In places where pets are kept, pet toileting devices are provided to facilitate the pets' use of the litter box. Taking a cat litter box as an example (sometimes referred to as a "litter box" for ease of explanation), a known litter box typically has a toilet area (sometimes called a "litter pit" for ease of explanation). After a cat defecates in the litter pit, the odor from the excrement quickly spreads within it. In the structure of a known litter box, to reduce odor within the litter pit, a collection box for collecting excrement is placed at the bottom of the litter pit. Furthermore, to separate the litter pit and the collection box, an odor-proof door structure is usually installed between them. When it is necessary to clean the litter, the odor-proof door structure is opened, allowing the excrement in the litter pit to fall into the collection box through this structure. Furthermore, when cleaning, the odor-proof door structure remains closed, thereby preventing the odor from the excrement in the collection box from entering the litter pit. Utility Model Content

[0003] In known odor-proof door structures for pet toileting devices, a double-door design is used to prevent odors from excrement in the collection box from entering the toilet space. Furthermore, to minimize the gap between the two blocking components, their ends overlap vertically. However, even with a small gap between the overlapping components, odors can still easily enter the toilet space. Additionally, if the gap is too small, the blocking components may collide and fail to overlap, preventing the odor-proof door from closing properly. If the gap is too large, it fails to effectively prevent odors from the collection box from entering the toilet space.

[0004] To address the aforementioned technical problems, this utility model proposes an odor-proof door structure that can reduce the odor of excrement entering the toilet space.

[0005] This utility model discloses an odor-proof door structure for a pet toileting device. The device includes a base with an opening in the center. A toileting space is formed above the opening, and a collection space is formed below it. The toileting space communicates with the collection space via the opening. The odor-proof door structure includes a door portion with a first blocking portion and a second blocking portion. The first and second blocking portions are mounted to the base in a manner that allows them to move away from or near each other. One end of the first blocking portion has a first end member, and one end of the second blocking portion has a second end member. At least one of the first and second end members is provided with a first sealing member. When the first and second blocking portions are near each other, the first and second end members face each other at the center of the opening, and the first sealing member is sandwiched between them, thereby closing the opening. When the first and second blocking portions are far apart, the first and second end members move away from each other, thereby opening the opening.

[0006] Beneficial effects The odor-proof door structure of this utility model can reduce the odor of excrement from entering the toilet space through the opening. Attached Figure Description

[0007] Figure 1 This is a perspective view of one embodiment of a pet toileting device with the odor-proof door structure of this utility model.

[0008] Figure 2 Is to make Figure 1 A schematic diagram showing the separation of the base and the body of a pet toilet device.

[0009] Figure 3 This is a schematic diagram of the key parts of the odor-proof door structure of this utility model.

[0010] Figure 4 This is a schematic diagram showing the separation of the first and second shells of the base portion.

[0011] Figure 5 It is along Figure 3 The sectional view at point AA.

[0012] Figure 6 yes Figure 5 Enlarged view of point B in the image.

[0013] Figure 7 yes Figure 5 Enlarged view of point C in the image.

[0014] Figure 8 yes Figure 4 A three-dimensional view of the main part of the gate.

[0015] Figure 9 yes Figure 8 The sectional view at point DD.

[0016] Explanation of reference numerals in the attached figures 100: Base; 101: Base; 102: Collection space; 103: Opening; 104: First shell; 105: Second shell; 106: Installation space; 107: Excrement collection box; 108: Third shell; 109: First support plate; 110: First outer perimeter plate; 111: First through groove; 112: First wall; 113: First left side wall; 114: First right side wall; 115: First front side wall; 116: First rear side wall; 117: Second support plate; 118: Second outer perimeter plate; 119: Second through groove; 200: Cabin section; 201: Toilet space; 202: Entrance / exit; 203: Outer shell; 204: Main compartment; 500: Door section; 501: Gap; 502: First shielding part; 503: Second shielding part; 504: First end member; 505: Second end member; 506: First seal; 507: Door drive motor; 508: Door transmission mechanism; 509: Door guide mechanism; 510: First shielding member; 511: First main body part; 512: Third end member; 513: First extension part; 514: Second wall part; 515: Second front side wall; 516: Second rear side wall; 517: Second left side wall; 518: First inclined part; 519: First extension Long channel; 520: Second seal; 521: First guide bar; 522: First rack; 523: Second shield; 524: Second main body; 525: Fourth end member; 526: Second extension; 527: Third wall; 528: Third front side wall; 529: Third rear side wall; 530: Third right side wall; 531: Second inclined portion; 532: Second extended channel; 533: Third seal; 534: Second guide bar; 535: Second rack; 536: Gear; 537: Guide; 538: First scraper; 539: Second scraper. Detailed Implementation

[0017] The embodiments of this implementation are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this implementation, and should not be construed as limiting this implementation.

[0018] In the description of this embodiment, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this embodiment.

[0019] In the description of this embodiment, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0020] In the description of this embodiment, unless otherwise explicitly limited, terms such as setting, installing, and connecting should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this embodiment in conjunction with the specific content of the technical solution.

[0021] Reference Figures 1 to 9 and mainly refer to Figure 1 , Figure 2 Pet toileting devices can be house-type devices. Pets using such devices can include, for example, cats, dogs, rabbits, hamsters, etc. Typically, they can be used for cats, and when used for cat toileting, such devices are sometimes called "litter boxes." The pet toileting device includes a base 100 and a chamber 200. The base 100 is supported on the floor, table, or any other location that allows easy access for the pet. The base 100 includes a pedestal 101, which forms a collection space 102 for collecting pet excrement. The chamber 200, acting as a house, is supported on the pedestal 101 of the base 100, and forms a toilet space 201 and an entrance / exit 202 allowing the pet to enter and exit. The pet enters the toilet space 201 through the entrance / exit 202 and uses the toilet within it. The cabin section 200 has an outer shell 203 and a main body 204 of the cabin housed within the outer shell 203. The main body 204 of the cabin is rotatable relative to the outer shell 203. The outer shell 203 and the main body 204 of the cabin are generally hemispherical in shape. In other words, both the outer shell 203 and the main body 204 of the cabin are open, and the pet can enter and exit the toilet space 201 through the entrance and exit 202.

[0022] When the pet toilet is a litter box, the main chamber 204 contains cat litter. After the cat uses the toilet in the toilet space 201, urine and feces combine with the cat litter to form clumps. An opening 103 is formed between the base 100 and the chamber body 200. When it is necessary to deal with the excrement that has formed clumps with cat litter, the main chamber 204 is rotated (tilted) relative to the outer shell 203. When the main chamber 204 rotates to a certain position, the excrement falls into the collection space 102 through the opening 103.

[0023] After excrement falls into the collection space 102, the pet owner needs to clean the collection space 102. Although the excrement will be cleaned up, it may still temporarily remain in the collection space 102. Therefore, it is necessary to minimize the odor from the collection space 102 entering the toilet space 201 through the opening 103. To this end, an odor-proof door structure is provided for the opening 103. When it is necessary to empty the main body 204 of the compartment or to handle excrement, the double doors of the odor-proof door structure open, allowing the excrement to fall into the collection space 102. When it is not necessary to handle the excrement, the double doors close, thereby closing the opening 103 and reducing the odor from the collection space 102 entering the toilet space 201 through the opening 103.

[0024] Furthermore, although this odor-proof door structure is provided, since the gap 501 between the two doors of the odor-proof door structure directly connects to the collection space 102, odors can still enter the toilet space 201 through the gap 501 between the two doors. To address this, in the odor-proof door structure of this embodiment, in order to reduce the entry of odors from the collection space 102 into the toilet space 201 through the opening 103, the gap 501 between the two doors is sealed.

[0025] Reference Figures 3 to 9 and mainly refer to Figure 5 , Figure 8 as well as Figure 9Additionally, it should be noted that in the various sectional views, for ease of illustration, some figures have been omitted and only the parts that need to be explained are shown. Specifically, the odor-proof door structure of the embodiment is used in a pet toileting device (it should be noted that the odor-proof door structure is an integral part of the pet toileting device and not an isolated component; therefore, when describing the odor-proof door structure, sometimes the distinction between the odor-proof door structure and other components of the pet toileting device is not strictly defined). Specifically, an opening 103 is formed in the middle of the base 101 of the pet toileting device, a toileting space 201 is formed above the opening 103, and a collection space 102 is formed below the opening 103. The toileting space 201 communicates with the collection space 102 via the opening 103. The odor-proof door structure includes a door portion 500, which has a first blocking portion 502 and a second blocking portion 503. The first blocking portion 502 and the second blocking portion 503 are installed on the base 101 in a manner that allows them to move away from or close to each other. The first blocking portion 502 has a first end member 504 at one end, and the second blocking portion 503 has a second end member 505 at one end. At least one of the first end member 504 and the second end member 505 is provided with a first sealing member 506. When the first blocking portion 502 and the second blocking portion 503 are close to each other, the first end member 504 and the second end member 505 face each other at the middle of the opening 103, and the first sealing member 506 is sandwiched between the first end member 504 and the second end member 505, thereby closing the opening 103. When the first blocking portion 502 and the second blocking portion 503 are far apart from each other, the first end member 504 and the second end member 505 are far apart from each other, thereby opening the opening 103.

[0026] This odor-proof door structure of the embodiment can reduce the odor of excrement entering the toilet space 201 through the opening 103. Specifically, by providing a first sealing member 506 at the positions of the first end member 504 and the second end member 505 opposite to each other in the door portion 500 which is a double door, and by sandwiching the first sealing member 506 between the first end member 504 and the second end member 505, the gap between the first end member 504 and the second end member 505 can be sealed by the first sealing member 506 while closing the opening 103, thereby reducing the odor of excrement entering the toilet space 201.

[0027] Furthermore, since the first blocking part 502 and the second blocking part 503 close the opening 103 by approaching each other, the first sealing member 506 provided in at least one of the first end member 504 and the second end member 505 directly abuts against the other of the first end member 504 and the second end member 505. Therefore, there is no need to add an additional structure to control the gap between the first end member 504 and the second end member 505, and there is no problem that the first blocking part 502 and the second blocking part 503 cannot close properly due to the reduction of the gap. Therefore, the structural reliability can be improved.

[0028] Continue to refer to Figure 4 as well as Figure 5 The base 101 of the pet toileting device in this embodiment can be formed by multiple housings overlapping each other. The base 101 includes a first housing 104 and a second housing 105 overlapping each other in a vertical direction, with the first housing 104 located above and the second housing 105 located below, forming an installation space 106 between the first housing 104 and the second housing 105. The control system of the pet toileting device (not shown), the door portion 500 of the odor-proof door structure of this embodiment, etc., are housed in this installation space 106. The toileting space 201 is located on one side of the first housing 104. More specifically, the outer shell 203 of the compartment portion 200 forming the toileting space 201 is mounted on the first housing 104, thereby placing the toileting space 201 on one side of the first housing 104. The collection space 102 is located on one side of the second housing 105. More specifically, the middle of the second housing 105 arches toward the first housing 104 to form a cavity, which serves as the collection space 102. When the pet toilet device is equipped with an excrement collection box 107, the excrement collection box 107 is inserted into the collection space 102.

[0029] Furthermore, the base 101 may also include a third housing 108, which serves as the housing of the base 100 and is located below the second housing 105. The second housing 105 is mounted to the third housing 108 from above. A cavity is also formed in the middle of the third housing 108, and the cavity of the third housing 108 and the cavity of the second housing 105 together constitute the collection space 102. The excrement collection box is detachably mounted to the base 101 and, when mounted to the base 101, is located in the collection space 102. For example, a known structure for supporting and locking the excrement collection box can be formed in the third housing 108, thereby allowing the excrement collection box 107 to be inserted into or removed from the collection space 102.

[0030] The first housing 104 may be, for example, a one-piece molded part formed by injection molding. The first housing 104 includes a first support plate 109 formed in the middle and a first peripheral plate 110 surrounding the first support plate 109. The first peripheral plate 110 extends downward relative to the first support plate 109. The outer shell 203 of the compartment portion 200 is fixed to the first housing 104. For example, the outer shell 203 may be locked to the first support plate 109 and supported by the first peripheral plate 110 and the first support plate 109. A first through groove 111 is formed in the middle of the first support plate 109, and the first through groove 111 is part of the opening 103. The first through groove 111 may be a rectangular groove with one side extending in a left-right direction (sometimes also called the "first direction", which is orthogonal to the up-down direction) and the other side extending in a front-back direction (sometimes also called the "second direction", which is orthogonal to both the first and up-down directions).

[0031] A first wall portion 112 extending downward is formed in the middle of the base 101. The first wall portion 112 is annular and defines an opening 103. The first wall portion 112 of the base 101 is formed in the first housing 104. The first wall portion 112 surrounds the first through groove 111 and protrudes downward relative to the first support plate 109, that is, the first wall portion 112 protrudes toward the collection space 102. The first wall portion 112 has four side walls corresponding to the four sides of the first through groove 111, namely, a first left side wall 113, a first right side wall 114, a first front side wall 115, and a first rear side wall 116. The first left side wall 113 and the first right side wall 114 are located on both sides of the first through groove 111 in the left-right direction. The first left side wall 113 is located on one side of the first blocking portion 502 in the left-right direction, and the first right side wall 114 is located on one side of the second blocking portion 503 in the left-right direction. The first left side wall 113 and the first right side wall 114 are respectively formed to gradually slope downward from the first support plate 109 in the left-right direction toward the middle of the first through groove 111. The first front side wall 115 and the first rear side wall 116 are respectively located on both sides of the first through groove 111 in the front-rear direction, and the first front side wall 115 and the first rear side wall 116 are respectively formed to extend downward from the first support plate 109.

[0032] At the ends of the portions on both sides of the first wall portion 112 in the first direction, there are respectively provided a flexible first scraper 538 and a flexible second scraper 539 extending in the second direction. The first scraper 538 abuts against the first blocking member 510 of the first blocking portion 502 (described later), and the second scraper 539 abuts against the second blocking member 523 of the second blocking portion 503 (described later).

[0033] More specifically, a first scraper 538 is disposed at the end of the first left side wall 113. The first scraper 538 extends approximately across the entire first left side wall 113 in the front-back direction (i.e., the second direction). Furthermore, the lip of the first scraper 538 abuts against the first blocking member 510 of the first blocking portion 502. When the first blocking portion 502 and the second blocking portion 503 of the double door 500 are opened relative to each other in the left-right direction (i.e., the first direction), the lip of the first scraper 538 slides on the upper surface of the first blocking member 510 of the first blocking portion 502, thereby scraping away pet excrement and other residues remaining on the upper surface of the first blocking member 510. The first scraper 538 can be a strip-shaped component made of a known flexible material such as rubber, possessing both wear resistance and corrosion resistance. The first scraper 538 can be installed to the end of the first left side wall 113 by various known methods such as screw locking, glue bonding, and buckle clamping. Alternatively, the first scraper 538 can be formed by wrapping the end of the first left side wall 113 directly.

[0034] The second scraper 539 is disposed at the end of the first right side wall 114. The second scraper 539 extends approximately across the entire first right side wall 114 in the front-back direction (i.e., the second direction). Furthermore, the lip of the second scraper 539 abuts against the second blocking member 523 of the second blocking part 503. When the first blocking part 502 and the second blocking part 503 of the double door 500 are opened to each other in the left-right direction (i.e., the first direction), the lip of the second scraper 539 slides on the upper surface of the second blocking member 523 of the second blocking part 502, thereby scraping off pet excrement and other residues remaining on the upper surface of the second blocking member 523. The second scraper 539 can be a strip-shaped component made of a known flexible material such as rubber, possessing both wear resistance and corrosion resistance. The second scraper 539 can be installed to the end of the first right side wall 114 by various known methods such as screw locking, glue bonding, and clip clamping. Alternatively, the second scraper 539 can be formed by wrapping the end of the first left side wall 113 directly.

[0035] The second housing 105 may be a one-piece molded part formed by injection molding. The second housing 105 includes a second support plate 117 formed in the middle and a second peripheral plate 118 surrounding the second support plate 117. The second peripheral plate 118 extends downward relative to the second support plate 117. A second through groove 119 is formed in the middle of the second support plate 117, and the second through groove 119 also serves as part of the opening 103. The extending direction of the second through groove 119 is consistent with the extending direction of the first through groove 111. When the first housing 104 and the second housing 105 are closed together, the first through groove 111 and the second through groove 119 are approximately centrally symmetrical and together constitute the opening 103.

[0036] The first housing 104 is mounted to the second housing 105 from above. The first support plate 109 of the first housing 104 and the second support plate 117 of the second housing 105 are positioned opposite each other with a vertical gap. The first outer periphery plate 110 of the first housing 104 and the second outer periphery plate 118 of the second housing 105 also surround the first support plate 109 and the second support plate 117 with a vertical gap. Thus, an installation space 106 is formed between the first housing 104 and the second housing 105 by the mutual covering of the first housing 104 and the second housing 105. Furthermore, it should be noted that the vertical gap between the first support plate 109 and the second support plate 117 is not particularly limited. For example, multiple support legs (not shown) can be formed on the first support plate 109 and / or the first outer periphery plate 110, and the first housing 104 can be mounted to the second housing 105 through these support legs, thereby creating a gap between the first support plate 109 of the first housing 104 and the second support plate 117 of the second housing 105.

[0037] Continue to refer to Figures 5 to 9 The door portion 500 is housed between the first housing 104 and the second housing 105. More specifically, the door portion 500 is housed in the mounting space 106 such that the first end member 504 of the first blocking portion 502 and the second end member 505 of the second blocking portion 503 slide closer to or further away from each other in a left-right direction (first direction). In addition to the first blocking portion 502 and the second blocking portion 503, the door portion 500 also includes a door drive motor 507, a door transmission mechanism 508, and a door guide mechanism 509. The door drive motor 507 is connected to the first blocking portion 502 and the second blocking portion 503, which are linearly guided in a left-right direction by the door guide mechanism 509, via the door transmission mechanism 508, and drives the first blocking portion 502 and the second blocking portion 503 to linearly move closer to or further away from each other in a left-right direction.

[0038] Continue to refer to Figure 8 as well as Figure 9 and supplementary reference Figure 5 The first shielding part 502 and the second shielding part 503 will be described in more detail below.

[0039] The first shielding portion 502 includes a first shielding member 510, which may be made of a rigid and corrosion-resistant material such as hard resin or stainless steel. For example, the first shielding member 510 may be integrally molded from resin material by injection molding. The first shielding member 510 is located on the left side of the opening 103 in the left-right direction. The first shielding member 510 has a first main body portion 511 that is generally rectangular and flat, and a first end member 504 is integrally formed with the first shielding member 510 at the right end of the first main body portion 511. Furthermore, the first shielding member 510 has an integrally formed third end member 512 on the side opposite to the first end member 504, that is, the third end member 512 is integrally formed with the first shielding member 510 at the left end of the first main body portion 511.

[0040] The first end member 504 has a first extension 513 that extends in a vertical direction. In other words, the first extension 513 can extend upward and / or downward relative to the first main body portion 511 of the first blocking member 510. Furthermore, the first extension 513 generally spans the entire first end member 504 in the front-rear direction. By extending the first extension 513 upward and / or downward, the width of the first extension 513 in the vertical direction can be increased.

[0041] The first extension 513 may be located inside the end face of the first end member 504, that is, the first extension 513 is located on the left side relative to the end face of the first end member 504. The first extension 513 starts from the inside of the end face of the first end member 504 and extends downward toward the first main body portion 511. The first extension 513 may extend downward approximately perpendicular to the first main body portion 511. That is, the first extension 513 is formed to be approximately straight in a front-rear view. Alternatively, the first extension 513 may be formed to start from the inside (i.e., the left side) of the end face of the first end member 504, extend downward toward the first end member 504, and then extend toward the end face side (i.e., the right side) of the first end member 504. That is, the first extension 513 is formed to be approximately L-shaped in a front-rear view. The first extension 513 and the first end member 504 together constitute a receiving groove (not labeled in the drawings). Furthermore, the first extension 513 may extend downward toward the first main body 511 while also extending to the left, and then downward toward the first main body 511 while also extending to the right. That is, the first extension 513 is formed in a roughly V-shape with its opening facing to the right in a front-rear view. Additionally, the first extension 513 may extend downward toward the first main body 511 with its right end face flush with the end face of the first end member 504. Thus, by forming the first extension 513 in this way, the vertical width of the first extension 513 can be extended, thereby extending the vertical width of the first seal 506 provided in the first extension 513.

[0042] In a specific example, a first seal 506 is disposed in the first extension 513 of the first end member 504. The first seal 506 can be a strip-shaped seal made of a known flexible material such as rubber. For example, the first seal 506 can be installed to the straight-line first extension 513 by various known methods such as screw tightening, adhesive bonding, or snap-fit. For example, the first seal 506 can also be installed in a receiving groove formed by the L-shaped or V-shaped first extension 513 and the first end member 504. For example, the first seal 506 can also be formed by overmolding, directly wrapping the straight-line first extension 513. The first seal 506 extends across the first extension 513 in the front-rear direction and is fixed to the right side of the first extension 513. Furthermore, the end face (i.e., the right side) of the first seal 506 protrudes from the end face of the first end member 504.

[0043] The first shielding member 510 has a second wall portion 514 that extends upward relative to the first main body portion 511 and surrounds the front end of the first main body portion 511, the third end member 512 (which can also be considered as the left end of the first main body portion 511), and the rear end of the first main body portion 511. That is, the second wall portion 514 is formed in a roughly U-shape from a top view. The second wall portion 514 has a second front side wall 515 located in the front direction of the first main body portion 511, a second rear side wall 516 located in the rear direction of the first main body portion 511, and a second left side wall 517 located in the third end member 512 (i.e., in the left direction of the first main body portion 511). The distance between the inner sides of the second front side wall 515 and the second rear side wall 516 in the front-rear direction is greater than the distance between the outer sides of the first front side wall 115 and the first rear side wall 116 in the front-rear direction of the first wall portion 112. The second left side wall 517 extends upward from the end face of the third end member 512. Furthermore, a first inclined portion 518 may be formed in the middle of the second left side wall 517 in the front-rear direction. With the opening 103 closed, the second wall portion 514 is located outside the first wall portion 112 relative to the opening 103, and the second wall portion 514 and the first wall portion 112 overlap in the vertical direction. That is, the second left side wall 517 and the first left side wall 113 are opposite each other in the left-right direction, and the second left side wall 517 is located to the left of the first left side wall 113. The second left side wall 517 and the first left side wall 113 are opposite each other and have a gap between them, forming a first extended channel 519 for suppressing odor diffusion through this gap. Similarly, the second front side wall 515 is located in front of the first front side wall 115, and the second rear side wall 516 is located behind the first rear side wall 116.

[0044] A second sealing element 520 may be provided on the second left side wall 517 of the second wall portion 514. When the first blocking member 510 is driven to the right and the opening 103 is closed, the second sealing element 520 is clamped in the first extension channel 519 and respectively adheres to the second left side wall 517 and the first left side wall 113 of the first wall portion 112, thereby sealing the first extension channel 519. The second sealing element 520 may be a sealing element made of a known flexible material such as rubber. The second sealing element 520 may be installed on the right side of the second left side wall 517 by various known methods such as screw locking, glue bonding, and snap-fit. In addition, the second sealing element 520 may also be formed by overmolding and directly wrapping the second left side wall 517. It should also be noted that the second sealing element 520 may also be provided on the first wall portion 112, or the second sealing element 520 may be provided on both the second wall portion 514 and the first wall portion 112.

[0045] The first blocking member 510 has a first guide bar 521 forming part of the door transmission mechanism 508. The first guide bar 521 is integrally formed with the first main body 511 on the outer side in the front-rear direction. The first blocking member 510 also has a first rack 522 forming part of the door transmission mechanism 508. The first rack 522 is integrally formed with the first guide bar 521 and the first main body 511 on the outer side in the front direction. It should also be noted that, in order to give the first blocking member 510 sufficient opening / closing stroke, the lengths of the first guide bar 521 and the first rack 522 are, for example, greater than the sum of the left-right lengths of the first blocking member 510 and the left-right lengths of the second blocking member 523 (described later). Furthermore, the length of the first guide bar 521 can be the same as the length of the first rack 522.

[0046] The second blocking part 503 will be described below. It should be noted that the first blocking part 502 and the second blocking part 503 are components that are approximately symmetrical in the left-right direction. Therefore, unless otherwise specified, the description of the first blocking part 502 also applies to the second blocking part 503.

[0047] The second shielding portion 503 includes a second shielding member 523, which may be made of a rigid and corrosion-resistant material such as hard resin or stainless steel. For example, the second shielding member 523 may be integrally molded from resin material by injection molding. The second shielding member 523 is located on the right side of the opening 103 in the left-right direction. The second shielding member 523 has a second main body portion 524 that is generally rectangular and flat, and a second end member 505 is integrally formed on the left end of the second main body portion 524 and the second shielding member 523. Furthermore, the second shielding member 523 has an integrally formed fourth end member 525 on the side opposite to the second end member 505, that is, the fourth end member 525 is integrally formed on the right end of the second main body portion 524 and the second shielding member 523.

[0048] The second end member 505 has a second extension 526 that extends vertically. Corresponding to the first extension 513, the second extension 526 can extend upward and / or downward relative to the second main body portion 524 of the second shield 523. Furthermore, the second extension 526 generally spans the entire second main body portion 524 in the front-rear direction. By extending the second extension 526 upward and / or downward, its width in the vertical direction can be increased. The second extension 526 can extend downward toward the second main body portion 524 with its left end face flush with the end face of the second end member 505. When the first end member 504 and the second end member 505 are facing each other, the first sealing member 506 provided on the first extension 513 of the first end member 504 abuts against the second extension 526.

[0049] The second shielding member 523 has a third wall portion 527 that extends upward relative to the second main body portion 524 and surrounds the front end of the second main body portion 524, the fourth end member 525 (which can also be considered as the right end of the second main body portion 524), and the rear end of the second main body portion 524. That is, the third wall portion 527 is formed in a roughly U-shape from a top view. The third wall portion 527 has a third front side wall 528 located in the front direction of the second main body portion 524, a third rear side wall 529 located in the rear direction of the second main body portion 524, and a third right side wall 530 located in the fourth end member 525 (i.e., in the right direction of the second main body portion 524). The distance between the inner sides of the third front side wall 528 and the third rear side wall 529 in the front-rear direction is greater than the distance between the outer sides of the first front side wall 115 and the first rear side wall 116 of the first wall portion 112 in the front-rear direction. The third right side wall 530 extends upward from the end face of the fourth end member 525. Furthermore, a second inclined portion 531 may be formed in the middle of the third right side wall 530 in the front-rear direction. With the opening 103 closed, the third wall portion 527 is located outside the first wall portion 112 relative to the opening 103, and the third wall portion 527 and the first wall portion 112 overlap in the vertical direction. That is, the third right side wall 530 and the first right side wall 114 are opposite each other in the left-right direction, and the third right side wall 530 is located to the right of the first right side wall 114. The third right side wall 530 and the first right side wall 114 are opposite each other and have a gap between them, forming a second extended channel 532 for suppressing odor diffusion through this gap. Similarly, the third front side wall 528 is located in front of the first front side wall 115, and the third rear side wall 529 is located behind the first rear side wall 116.

[0050] A third sealing element 533 may be provided on the third right side wall 530 of the third wall portion 527. When the second blocking member 523 is driven to the left and the opening 103 is closed, the third sealing element 533 is clamped in the second extension channel 532 and respectively adheres to the third right side wall 530 and the first right side wall 114 of the first wall portion 112, thereby sealing the second extension channel 532. The third sealing element 533 may be a sealing element made of a known flexible material such as rubber. The second sealing element 520 may be installed on the left side of the third right side wall 530 by various known methods such as screw locking, glue bonding, and snap-fit. In addition, the second sealing element 520 may also be formed by directly wrapping the third right side wall 530 by overmolding. It should also be noted that the third sealing element 533 may also be provided on the third wall portion 527, or the third sealing element 533 may be provided on both the third wall portion 527 and the first wall portion 112.

[0051] The second blocking member 523 has a second guide bar 534 forming part of the door transmission mechanism 508. The second guide bar 534 is integrally formed with the second main body 524, located further outward in the front-rear direction. The second blocking member 523 also has a second rack 535 forming part of the door transmission mechanism 508. The second rack 535 is integrally formed with the second guide bar 534 and the second main body 524, located further outward in the front direction. Furthermore, it should be noted that, in order to ensure sufficient opening / closing stroke for the second blocking member 523, the lengths of the second guide bar 534 and the second rack 535 are, for example, greater than, the sum of the left-right lengths of the first blocking member 510 and the left-right lengths of the second blocking member 523. Alternatively, the length of the second guide bar 534 can be the same as the length of the second rack 535.

[0052] The door 500 can use a door drive motor 507 and a door transmission mechanism 508 to move the first blocking member 510 and the second blocking member 523 closer together or further apart. The door drive motor 507 is located on the base 101 on one side of the opening 103 in the front-rear direction (second direction) and is mounted on the first support plate 109 or the second support plate 117. The mounting method of the door drive motor 507 is not particularly limited. For example, it can be directly mounted to the first support plate 109 or the second support plate 117, or it can be mounted to the first support plate 109 or the second support plate 117 through a mounting shell (not shown).

[0053] The door transmission mechanism 508 can use a rack and pinion drive mechanism. The rack and pinion drive mechanism is located on one side of the first blocking member 510 and the second blocking member 523 in the front-rear direction, and is on the same side as the door drive motor 507. As a rack and pinion drive mechanism, it includes a gear 536, the aforementioned first rack 522, and the second rack 535. The gear 536 is connected to the door drive motor 507, for example, the gear 536 is mounted to the output shaft of the door drive motor 507. The first rack 522 is integrally formed with the first blocking member 510 as described above. Similarly, the second rack 535 is integrally formed with the second blocking member 523 as described above.

[0054] A door guide mechanism 509 is used to guide the sliding of the first blocking member 510 and the second blocking member 523 in the left-right direction. The door guide mechanism 509 is located on the base 101 and is disposed on both sides of the opening 103 in the front-rear direction. The door guide mechanism 509 includes guide members 537 located on both sides of the opening 103 in the front-rear direction, and the guide members 537 have multiple guide grooves (not labeled) extending in the left-right direction. These guide members 537 can be installed to the first support plate 109 and / or the second support plate 117 by various known methods such as threaded connection, adhesive bonding, and snap-fit ​​connection. From the perspective of structural stability, threaded connection is preferred. Alternatively, the guide members 537 can also be integrally formed with the first support plate 109 or the second support plate 117.

[0055] A first guide strip 521 is provided on the upper and / or lower sides of the first blocking member 510, and similarly, a second guide strip 534 is provided on the upper and / or lower sides of the second blocking member 523. The first blocking member 510 and the second blocking member 523 are respectively sandwiched between the guide members 537 in the vertical direction, and the first guide strip 521 and the second guide strip 534 extend into their corresponding guide grooves. Thus, the first blocking member 510 and the second blocking member 523 are restricted in the vertical direction by being sandwiched between the guide members 537, and are restricted in the front-back direction by the first guide strip 521 and the second guide strip 534 extending into their corresponding guide grooves. Thus, the first blocking member 510 and the second blocking member 523 are guided in the left-right direction by the door guide mechanism 509.

[0056] Thus, through these door drive motors 507, door transmission mechanisms 508, and door guide mechanisms 509, the first blocking member 510 of the first blocking part 502 and the second blocking member 523 of the second blocking part 503 can move closer to or further away from each other in the left-right direction.

[0057] When the first blocking member 510 and the second blocking member 523 approach each other, the second wall portion 514 of the first blocking member 510 and the third wall portion 527 of the second blocking member 523 approach and face the first wall portion 112 respectively. The first end member 504 of the first blocking member 510 and the second end member 505 of the second blocking member 523 face each other at the middle of the opening 103, and the first sealing member 506 abuts against the second end member 505, thereby closing the opening 103. In addition, the second left side wall 517 in the second wall portion 514 and the first left side wall 113 in the first wall portion 112 face each other in the left-right direction and clamp the second sealing member 520. The third right side wall 530 in the second wall portion 514 and the first right side wall 114 in the first wall portion 112 face each other in the left-right direction and clamp the third sealing member 533.

[0058] In this odor-proof door structure of the pet toilet device according to the embodiment, by providing a first sealing member 506 at the positions of the first end member 504 and the second end member 505, which are opposite to each other as the first blocking part 502 and the second blocking part 503 of the double door, the gap between the first end member 504 and the second end member 505 can be sealed by the first sealing member 506 while closing the opening 103, thereby reducing the odor of excrement entering the toilet space 201.

[0059] Furthermore, by forming a first extension 513 for mounting the first seal 506 in the first end member 504 and a second extension 526 in the second end member 505, the vertical width of the first seal 506 can be extended, thereby increasing the contact area between the first seal 506 and the second extension 526 and improving the reliability of the seal. Even when the first end member 504 and the second end member 505 are slightly misaligned in the vertical direction, a reliable seal can still be achieved.

[0060] Furthermore, by making the end face of the first seal 506 protrude beyond the end face of the first end member 504, and making the end face of the second extension 526 flush with the end face of the second end member 505, the first seal 506 can be made flat and adaptively conform to the end face of the second end member 505 in the left-right direction. Even if there is an error in the sliding of the first end member 504 and the second end member 505 in the left-right direction, a reliable seal can be achieved.

[0061] Furthermore, by accommodating the first seal 506 in a receiving groove formed by the first extension 513 and the first end member 504, the first seal 506 can be securely fixed, thereby reducing the frequency of maintenance of the first seal 506.

[0062] In the odor-proof door structure of this embodiment, flexible first scraper 538 and flexible second scraper 539 extending in the front-back direction are respectively provided at the ends of the portions on both sides of the first wall portion 112 in the left-right direction. The first scraper 538 abuts against the first shield 510, and the second scraper 539 abuts against the second shield 523. This allows excrement that may remain on the first shield 510 and the second shield 523 to be scraped off when the door portion 500 is opened. Furthermore, the flexible first scraper 538 and second scraper 539 can seal the edge of the opening portion 103 to a certain extent, suppressing the diffusion of odors from the left and right sides of the opening portion 103.

[0063] In the odor-proof door structure of this embodiment, a first wall portion 112 is formed in the base 101, a second wall portion 514 is formed in the third end member 512, and a third wall portion 527 is formed in the fourth end member 525. By forming a first extended channel 519 between the first wall portion 112 and the second wall portion 514 and a second extended channel 532 between the first wall portion 112 and the third wall portion 527 when the opening 103 is closed, odors can be suppressed from diffusing from the left and right sides of the opening 103. This further reduces the odor of excrement entering the toilet space 201 through the opening 103.

[0064] Specifically, since the door guide mechanism 509 is installed on the front and rear sides of the opening 103, it can suppress the diffusion of odors from the front and rear sides of the opening 103. However, since the first blocking member 510 and the second blocking member 523 slide along the left and right sides of the opening 103 respectively, a gap needs to be left on the left and right sides of the opening 103 of the base 101 so that the first blocking member 510 and the second blocking member 523 can slide. In the pet toilet device of the embodiment, when the opening 103 is closed, a first extended channel 519 is formed by making the second wall portion 514 and the first wall portion 112 face each other, and a second extended channel 532 is formed by making the third wall portion 527 and the first wall portion 112 face each other. This not only reduces the gap on the left and right sides of the opening 103, but also extends the gap. As a result, it is possible to suppress odors from entering the toilet space 201 through the gap on the left and right sides of the opening 103.

[0065] Furthermore, by providing second seals 520 that are respectively clamped in the first extension channel 519 and the second extension channel 532 when the opening 103 is closed, the odor is further suppressed from entering the toilet space 201 through the gaps on the left and right sides of the opening 103.

[0066] Therefore, in the odor-proof door structure of the embodiment, when the opening 103 is closed, not only can the area directly above the opening 103 be sealed, but also the diffusion of odor can be suppressed to a certain extent at the edges of the front, back, left and right sides of the opening 103. Thus, in the pet toilet device of the embodiment, the overall odor of excrement entering the toilet space 201 can be greatly reduced.

[0067] The following describes other embodiments of the odor-proof gate structure for pet toilet devices.

[0068] In the above embodiment, although an example of the first seal 506 being disposed on the first end member 504 has been described, it is not limited thereto. The first seal 506 may also include two, one disposed on the first end member 504 and the other on the second end member 505. When the opening 103 is closed, the two first seals 506 are respectively held by the first end member 504 and the second end member 505.

[0069] In the above embodiments, although examples have been described where the first end member 504 has a first extension 513 and the second end member 505 has a second extension 526, the embodiments are not limited thereto. For example, in a manner that can ensure the accuracy when the first end member 504 and the second end member 505 abut against each other, the first extension 513 or the second extension 526 may not be present, and the first seal 506 may be directly covered over the right end face of the first end member 504.

[0070] In the above embodiments, although examples have been described of the first shielding member 510, the first end member 504, and the third end member 512 being integrally formed, and the second shielding member 523, the second end member 505, and the fourth end member 525 being integrally formed, the embodiments are not limited thereto.

[0071] The first shielding member 510 and the second shielding member 523 can also be telescopic members that can extend and retract in the left-right direction (first direction). For example, the telescopic member can be in the shape of an accordion, or it can be a telescopic protective cover composed of multiple stacked covers, or it can be a flexible protective cover made of flexible materials such as silicone or rubber sleeves.

[0072] In this embodiment, the first blocking portion 502 may also include a third end member 512, which is fixed to the base 101. The third end member 512 is, for example, fixed to the second support plate 117 of the second housing 105 and located on the left side of the opening 103. The left end of the first blocking member 510, which is a telescopic member, is connected to the third end member 512. For example, the left end of the first blocking member 510 is fixed to the third end member 512, and the right end of the first blocking member 510 is connected to the first end member 504. The first end member 504 is driven by the door portion by the drive motor 507 and extends and retracts in the left and right direction.

[0073] Similarly, the second blocking member 523 may also include a fourth end member 525, which is fixed to the base 101. The fourth end member is, for example, fixed to the second support plate 117 of the second housing 105 and located on the right side of the opening 103. The right end of the second blocking member 523, which is a telescopic member, is connected to the fourth end member 525. For example, the right end of the second blocking member 523 is fixed to the fourth end member 525, and the left end of the second blocking member 523 is connected to the second end member 505. The second end member 505 is driven by the door portion by the drive motor 507 and extends and retracts in the left and right direction.

[0074] Therefore, when the first end member 504 and the second end member 505 are driven to approach each other in the left-right direction, the first blocking member 510 and the second blocking member 523 extend, thereby jointly covering the opening 103. In this embodiment, since the third end member 512 and the fourth end member 525 can be fixed, sealing structures can be provided between the third end member 512 and the fourth end member 525 and the second support plate 117, thereby sealing the left and right sides of the opening 103. Furthermore, since the third end member 512 and the fourth end member 525 can be sealed with the base 101 and do not need to be driven, it is not necessary to form a second wall portion 514 or a third wall portion 527 on the third end member 512.

[0075] In the above embodiment, although an example of using a rack and pinion drive mechanism as the door drive mechanism 508 has been described, it is not limited to this. For example, a belt drive mechanism can also be used as the door drive mechanism 508. In this embodiment, the belt drive mechanism is provided on one side in the front-rear direction of the first blocking part 502 and the second blocking part 503, and is located on the same side as the door drive motor 507. As a belt drive mechanism, it includes a driving pulley, a driven pulley, and a drive belt. The driving pulley is connected to the door drive motor 507, for example, the driving pulley is mounted to the output shaft of the door drive motor 507. Of the first end member 504 of the first blocking part 502 and the second end member 505 of the second blocking part 503, one is connected to the middle of the upper part of the drive belt, and the other is connected to the middle of the lower part of the drive belt. Thus, when the drive belt is driven, since the running direction of the upper part of the drive belt is opposite to the running direction of the lower part, the first blocking member 510 and the second blocking member 523 can be moved closer to each other or further away from each other. Furthermore, it should be noted that, in order to ensure that the first blocking member 510 and the second blocking member 523 have sufficient sliding stroke, the distance between the rotation center of the driving wheel and the rotation center of the driven wheel of the belt drive mechanism is greater than the width of the opening 103 in the left and right directions.

[0076] Furthermore, in this manner where the first shield 510 and the second shield 523 are telescopic members, the first end member 504, the second end member 505, and the transmission belt can be connected by a simple structure (e.g., sheet metal parts for connection).

[0077] In the above embodiments, although an example has been described where the first guide bar 521 and the first blocking member 510, which are part of the door guide mechanism 509, are integrally formed, and the second guide bar 534 and the second blocking member 523 are integrally formed, this is not a limitation. As the door guide mechanism 509, a commercially available linear slide rail mechanism or linear guide shaft mechanism can also be used, and a thin type is preferred. Taking a linear slide rail mechanism as an example, the first blocking member 510 and the second blocking member 523 can share the same linear slide rail mechanism, or different linear slide rail mechanisms can be configured for the first blocking member 510 and the second blocking member 523 respectively. In particular, when the first blocking member 510 and the second blocking member 523 are telescopic members, such a commercially available linear slide rail mechanism can be used directly, and the first end member 504 and the second end member 505 can be connected to the slider of such a linear slide rail mechanism respectively.

[0078] Furthermore, in the above embodiment, although an example was described where the door portion 500 includes a door drive motor 507 that drives the first blocking part 502 and the second blocking part 503 in conjunction via a door transmission mechanism 508, it is not limited to this. The door portion 500 may also include two door drive motors 507 and two door transmission mechanisms 508, that is, the first blocking member 510 and the second blocking member 523 are driven independently by a door drive motor 507 and a door transmission mechanism 508 respectively, so that they move closer to or further away from each other.

[0079] In the above embodiments, although the pet toileting device is divided into a base 100 and a housing 200, the base 100 and the housing 200 can be assembled together to form the pet toileting device, or they can be a single unit. For example, although an example is given where the base 100 includes a base 101 and the housing 200 includes a housing 203, the base 101 and the housing 203 can also be integrally formed components. That is, the pet toileting device of the embodiments can include a single housing, with a portion of the housing serving as the base 101 to support the housing body 204, and a portion serving as the housing 203 to enclose the housing body 204.

[0080] Although embodiments of this implementation have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this implementation, the scope of which is defined by the claims and their equivalents.

Claims

1. An odor-proof door structure for a pet toilet device, wherein, The pet toilet device includes: A base (101) has an opening (103) in the middle, a toilet space (201) is formed above the opening (103), and a collection space (102) for collecting excrement is formed below the opening (103). The toilet space (201) is connected to the collection space (102) via the opening (103). Its features are, The odor-proof door structure includes a door portion (500), which has a first shielding portion (502) and a second shielding portion (503). The first shielding portion (502) and the second shielding portion (503) are installed on the base (101) in a manner that allows them to move away from or close to each other. The first shielding part (502) has a first end member (504) at one end, and the second shielding part (503) has a second end member (505) at one end. At least one of the first end member (504) and the second end member (505) is provided with a first sealing member (506). With the first blocking part (502) and the second blocking part (503) close to each other, the first end member (504) and the second end member (505) face each other at the middle of the opening (103), and the first seal (506) is sandwiched between the first end member (504) and the second end member (505), thereby closing the opening (103); When the first blocking part (502) and the second blocking part (503) are far apart from each other, the first end member (504) and the second end member (505) are far apart from each other, thereby opening the opening (103).

2. The odor-proof door structure according to claim 1, characterized in that, The first end member (504) has a first extension (513) that extends in the vertical direction; The second end member (505) has a second extension (526) that extends in the vertical direction; The first seal (506) is disposed on the first extension (513), and when the first end member (504) and the second end member (505) are opposite to each other, the first seal (506) fits against the second extension (526).

3. The odor-proof door structure according to claim 2, characterized in that, The first extension (513) is formed to start from the inside of the end face of the first end member (504), extend downward toward the first end member (504), and then extend toward the end face side of the first end member (504).

4. The odor-proof door structure according to claim 3, characterized in that, The first extension (513) is formed in an L-shape or a V-shape, and the first seal (506) is accommodated in a receiving groove formed by the first extension (513) and the first end member (504); The end face of the first seal (506) protrudes beyond the end face of the first end member (504).

5. The odor-proof door structure according to any one of claims 2 to 4, characterized in that, The second extension (526) is formed to extend downward toward the first end member (504), and the end face of the second extension (526) is flush with the end face of the second end member (505).

6. The odor-proof door structure according to any one of claims 1 to 4, characterized in that, The first shielding part (502) includes a first shielding member (510), one end of the first shielding member (510) is connected to the first end member (504); The second shielding part (503) includes a second shielding member (523), one end of the second shielding member (523) being connected to the second end member (505); The first shielding member (510) and the first end member (504), and the second shielding member (523) and the second end member (505) slide closer to each other or further away from each other along a first direction, wherein the first direction is a direction orthogonal to the up and down direction; When the opening (103) is closed, the first blocking member (510) and the second blocking member (523) together block the opening (103).

7. The odor-proof door structure according to claim 6, characterized in that, The first shielding member (510) and the first end member (504) are integrally formed parts, and the first shielding member (510) has an integrally formed third end member (512) on the side opposite to the first end member (504). The second shielding member (523) and the second end member (505) are integrally formed parts, and the second shielding member (523) has an integrally formed fourth end member (525) on the side opposite to the second end member (505). When the opening (103) is closed, a first extended channel (519) for suppressing the spread of odors is formed between the third end member (512) and the base (101), and a second extended channel (532) for suppressing the spread of odors is formed between the fourth end member (525) and the base (101).

8. The odor-proof door structure according to claim 7, characterized in that, The base (101) has a downwardly extending first wall portion (112) formed in the middle, the first wall portion (112) being annular in shape and defining the opening portion (103). The third end member (512) has an upwardly extending second wall portion (514), and the fourth end member (525) has an upwardly extending third wall portion (527). When the opening (103) is closed, the second wall portion (514) and the third wall portion (527) are located outside the first wall portion (112) respectively relative to the opening (103); The second wall portion (514) and the first wall portion (112) are opposite each other to form the first extended channel (519), and the third wall portion (527) and the first wall portion (112) are opposite each other to form the second extended channel (532).

9. The odor-proof door structure according to claim 8, characterized in that, A second seal (520) is provided on the side of the second wall portion (514) and / or the first wall portion (112) opposite to the second wall portion (514), and when the opening portion (103) is closed, the second seal (520) is clamped in the first extension channel (519). A third seal (533) is provided on the side of the third wall portion (527) and / or the first wall portion (112) opposite to the third wall portion (527), and when the opening portion (103) is closed, the third seal (533) is clamped in the second extension channel (532).

10. The odor-proof door structure according to claim 6, characterized in that, The first shielding member (510) and the second shielding member (523) are telescopic members that can extend and retract along the first direction.

11. The odor-proof door structure according to claim 10, characterized in that, The telescopic component is shaped like an accordion cover.

12. The odor-proof door structure according to claim 10 or 11, characterized in that, The other end of the first shielding part (502) has a third end member (512), which is fixed to the base (101), and the other end of the first shielding part (510) is connected to the third end member (512); The other end of the second shielding part (503) has a fourth end member (525), which is fixed to the base (101), and the other end of the second shielding part (523) is connected to the fourth end member (525).

13. The odor-proof door structure according to any one of claims 7 to 9, characterized in that, The door portion (500) also has: The door is driven by a drive motor (507) to drive the first blocking member (510) and the second blocking member (523) to slide closer to or further away along the first direction; A door transmission mechanism (508) connects the door drive motor (507), the first blocking member (510), and the second blocking member (523).

14. The odor-proof door structure according to claim 13, characterized in that, The door transmission mechanism (508) is a rack and pinion transmission mechanism, which includes: The gear component (536) is connected to the door via a drive motor (507); The first toothed rack (522), the first shielding member (510), and the second shielding member (523) are integrally formed; The second rack (535) is integrally formed with the other of the first shield (510) and the second shield (523).

15. The odor-proof door structure according to claim 13, characterized in that, The door transmission mechanism (508) is a belt drive mechanism, which includes: The drive wheel is connected to the door via a drive motor (507); A drive belt, the upper portion of which is connected to one of the first shield (510) and the second shield (523), and the lower portion of which is connected to the other of the first shield (510) and the second shield (523).

16. The odor-proof door structure according to claim 12, characterized in that, The door portion (500) also has: A drive motor (507) is used to drive the first end member (504) and the second end member (505) to slide closer to or further away along the first direction; Belt drive mechanism, including: The drive wheel is connected to the door via a drive motor (507); A drive belt, the upper portion of which is connected to one of the first end member (504) and the second end member (505), and the lower portion of which is connected to the other of the first end member (504) and the second end member (505).

17. The odor-proof door structure according to claim 6, characterized in that, The base (101) includes a first housing (104) and a second housing (105) that overlap each other in the vertical direction, and the door (500) is housed between the first housing (104) and the second housing (105).

18. The odor-proof door structure according to claim 6, characterized in that, The base (101) has a downwardly extending first wall portion (112) formed in the middle, the first wall portion (112) being annular in shape and defining the opening portion (103). The first wall portion (112) is provided with a flexible first scraper (538) and a flexible second scraper (539) extending in a second direction at the ends of the portions on both sides of the first direction, wherein the second direction is a direction that is orthogonal to the first direction and the up and down direction, respectively. The first scraper (538) abuts against the first shield (510); The second scraper (539) abuts against the second shield (523).

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