A type of plastic toilet chair

Abstract

This utility model discloses a plastic toilet chair, relating to the field of rehabilitation and nursing equipment, including a seat, backrest, armrests, a lid module, and a commode. The seat is detachably connected to several downward-extending legs for easy assembly, disassembly, and height adjustment. The backrest is rotatably connected to the seat. Two armrests are located on the left and right sides of the backrest, one end of which is rotatably connected to the backrest, and the other end is detachably connected to the seat, allowing for quick folding of the armrests towards the backrest and vice versa, reducing storage volume. The commode is detachably mounted on the seat for easy cleaning after use. The lid module is located above the commode and rotatably connected to the seat. A receiving space is provided near the seat on the backrest, and the lid module can be flipped and folded into this space, avoiding additional space occupation. This toilet chair, through its rotatable and detachable connection structure, balances stability during use with convenient folding and storage, making it suitable for various scenarios such as homes, nursing homes, and outdoor settings, improving toilet comfort and space utilization.

Description

Technical Field

[0001] This utility model relates to the field of rehabilitation and nursing technology, and in particular to a plastic toilet chair. Background Technology

[0002] Currently, existing toilet chair products on the market typically consist of a seat panel, a support frame, and armrests and backrests to enhance comfort and safety. The armrests primarily assist users in maintaining balance when getting up and sitting down, preventing tipping; the backrests provide back support, reducing lumbar pressure from prolonged sitting. However, most current toilet chairs have significant design limitations in their armrests and backrests. The connections between these components and the seat panel are often fixed or require multiple complex steps to fold, making quick folding of the seat panel impossible.

[0003] Specifically, some traditional toilet chairs have armrests directly connected to the seat or frame structure via welding or bolting, lacking any folding capability. This results in the armrests occupying significant lateral space when the chair is folded, making compact storage difficult. Other toilet chairs, while designed with foldable armrests or backrests, require disassembling connectors, adjusting multiple latches, or rotating multiple joints, making the process cumbersome. This not only fails to meet the need for "quick folding" but may also negatively impact the user experience, especially for elderly users or caregivers with limited hand dexterity. Furthermore, the inability to quickly fold the armrests and backrest to fit snugly against the seat, combined with the chair's large size, limits the number that can be loaded at one time, increasing transportation costs. The large size also makes storage and carrying inconvenient; for example, it takes up considerable space at home and is difficult to fit into ordinary vehicles or storage containers when outdoors.

[0004] In summary, existing toilet chairs suffer from significant shortcomings in terms of storage convenience, transportation cost control, and user experience due to the inability of the armrests and backrest structure to fold quickly relative to the seat panel. This fails to meet current market demands for portability and space utilization. Therefore, it is urgent to improve the connection structure between the armrests and backrest of toilet chairs to enable rapid folding of the armrests and backrest relative to the seat panel, thereby enhancing the overall performance of the toilet chair. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a plastic toilet chair.

[0006] A plastic toilet chair designed for this purpose includes a seat, a backrest, armrests, a lid module, and a toilet bowl.

[0007] The seat plate is detachably connected to several downwardly extending chair legs.

[0008] The backrest is rotatably connected to the seat plate; there are two armrests located on the left and right sides of the backrest respectively; one end of the armrest is rotatably connected to the backrest; the other end of the armrest is detachably connected to the seat plate.

[0009] The toilet bowl is detachably mounted on the seat plate.

[0010] The cover module is disposed above the toilet bowl and is rotatably connected to the seat plate.

[0011] The backrest component has a receiving space near the seat plate component; the cover module can be flipped and folded into the receiving space.

[0012] Preferably, the base plate is provided with a plug-in space, and a locking groove is provided in the plug-in space;

[0013] The armrest component includes a first armrest component and a second armrest component that are rotatably connected to each other; the end of the first armrest component away from the second armrest component is rotatably connected to the backrest component; the end of the second armrest component away from the first armrest component is inserted into the insertion space.

[0014] The second armrest component is provided with an elastic latch; the elastic latch can be engaged into the locking groove to form a lock; the elastic latch is provided with a limiting contact element, which can abut against the upper surface of the seat plate component.

[0015] Preferably, the seat plate is provided with a through mounting opening, and a fixed bucket sleeve is provided inside the mounting opening. The fixed bucket sleeve is detachably connected to the seat plate; the toilet bowl is detachably installed inside the fixed bucket sleeve.

[0016] Preferably, the toilet includes a bucket body that is movably inserted into the fixed bucket sleeve from top to bottom, the upper end of the bucket body is open and covered with a bucket lid; the fixed bucket sleeve abuts against the bucket body to restrain the bucket body from moving downward.

[0017] Preferably, the seat plate is rotatably connected to a seat ring, the toilet bowl is located inside and below the seat ring; the seat ring is rotatably connected to the seat plate; and the cover module is located above the seat ring.

[0018] Preferably, the cover plate module includes a first cover plate and a second cover plate that are rotatably connected to each other; the first cover plate is located behind the second cover plate and the rear side of the first cover plate is rotatably connected to the seat plate.

[0019] Preferably, the seat plate has mounting slots on the left and right sides of its rear side; a connecting element is detachably connected to the mounting slot; and a rotating element is rotatably connected to the connecting element.

[0020] The rotating element is fixedly connected to the backrest component;

[0021] The connecting element and the rotating element are connected by a locking module that restricts their relative rotation.

[0022] Preferably, the connecting element has a first space inside and the first space is open towards the rotating element; the rotating element has a second space inside and the second space is open towards the connecting element.

[0023] The locking module includes a first toothed sleeve fixedly disposed in the first space, a second toothed sleeve disposed in the second space, a locking gear, an elastic element, and a driving element;

[0024] The locking gear is movable along the axial direction of the rotating element and moves between the locked position and the unlocked position;

[0025] When the locking gear is in the locked position, the locking gear meshes with the first gear sleeve and the second gear sleeve;

[0026] When the locking gear is in the unlocked position, the locking gear is separated from the first gear sleeve;

[0027] The elastic element is used to apply a force to the locking gear to push the locking gear to move toward the locking position;

[0028] The drive element is disposed on the connecting element and is movable relative to the connecting element to drive the locking gear to move toward the unlocked position.

[0029] Preferably, the driving element is a touch button and is movable along the axial direction of the rotating element; the touch portion of the driving element is located outside the connecting element.

[0030] The driving element is at least partially located within the first space and is provided with a limiting part that abuts against and limits the first space in that part.

[0031] Compared with the prior art, this utility model achieves the following: by rotating the backrest and seat plate components, one end of the armrest is rotatably connected to the backrest and the other end is detachably connected to the seat plate. This eliminates the need for complex disassembly or multiple steps, allowing for quick folding of the armrest towards the backrest and the backrest towards the seat plate, significantly reducing folding time. Simultaneously, the cover module can be flipped and folded into the backrest's storage space, preventing the components from occupying additional space after folding. The overall volume is significantly reduced after folding, making it easier to store in small home spaces, carry during outdoor camping, or increase the number of items loaded at one time during transportation, thus reducing transportation costs. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 This is a schematic diagram of the cover plate module in the flip-open state.

[0034] Figure 3 This is a structural diagram of the handrail component in a disassembled state.

[0035] Figure 4 This is a structural diagram of a toilet bowl in a disassembled state.

[0036] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0037] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] See Figures 1-6 A plastic toilet chair includes a seat plate 10, a backrest 20, armrests 30, a lid module 40, and a toilet bowl 50.

[0040] The seat plate 10 is detachably connected to a plurality of downwardly extending chair legs 100.

[0041] The backrest component 20 is rotatably connected to the seat plate component 10; two armrest components 30 are provided and are respectively located on the left and right sides of the backrest component 20; one end of the armrest component 30 is rotatably connected to the backrest component 20; the other end of the armrest component 30 is detachably connected to the seat plate component 10.

[0042] The toilet bowl 50 is detachably mounted on the seat plate 10;

[0043] The cover module 40 is disposed above the toilet bowl 50 and is rotatably connected to the seat plate 10.

[0044] The backrest 20 has a receiving space 200 near the seat plate 10; the cover module 40 can be flipped and folded into the receiving space 200.

[0045] The operating principle of this plastic toilet chair revolves around the entire process of "assembly-use-cleaning-storage." Through the rotation and detachable connection structure of each component, convenient operation and function switching are achieved, as detailed below:

[0046] I. Pre-use assembly stage

[0047] Chair leg assembly: Several chair legs 100 are detachably connected to the seat plate 10 (such as snap-fit ​​connection, threaded connection, etc.) so that the chair legs 100 extend vertically downward to provide stable support for the seat plate 10. Users can select the number of chair legs or replace them with suitable chair legs according to their needs to ensure that the toilet chair is stable and does not wobble when placed on the ground.

[0048] Toilet installation: The toilet 50 is detachably assembled to the corresponding installation position of the seat plate 10, so that the toilet 50 is located inside the seat plate 10, accurately receiving toilet waste, and completing the basic use structure construction.

[0049] II. Daily Toilet Use Stage

[0050] Lid opening and storage: The lid module 40 is set above the toilet bowl 50 and is rotatably connected to the seat plate 10. Before using the toilet, the lid module 40 needs to be flipped upward to expose the opening of the toilet bowl 50. At this time, the flipped lid module 40 can be inserted into the receiving space 200 of the backrest 20 near the seat plate 10 to prevent the lid module 40 from hanging or occupying the toilet space, and to prevent the lid surface from getting dirty. After using the toilet, the lid module 40 can be taken out from the receiving space 200 and flipped downward to cover the toilet bowl 50, isolating odors and protecting the hygiene inside the toilet bowl, taking into account both privacy protection and space utilization.

[0051] Armrest and backrest support: One end of the armrest 30 is rotatably connected to the backrest 20, and the other end is detachably connected to the seat plate 10. When in use, the free end of the armrest 30 is fixed to the seat plate 10, so that the two armrests 30 are located on the left and right sides of the seat plate 10 respectively; the backrest 20 and the seat plate 10 maintain an extended rotation angle; when the user sits down, the back can be supported by the backrest 20, and the hands can be placed on the armrest 30. With the support of the armrest 30, the user can get up or sit down, improving safety and comfort.

[0052] III. Cleaning and Maintenance Phase

[0053] When the toilet bowl 50 needs to be cleaned, it can be directly removed from the seat plate 10 and the inside of the toilet bowl 50 can be rinsed and disinfected separately without moving the entire toilet seat. When cleaning the seat plate 10 and the lid module 40, the lid module 40 can be removed from the receiving space 200 and all parts can be kept in the unfolded state, or the rotation angle can be finely adjusted according to the cleaning needs. There is ample operating space and the convenience of cleaning is greatly improved.

[0054] IV. Storage and Folding Stage

[0055] When you need to store or carry the toilet chair, follow these steps to fold it:

[0056] First, confirm that the cover module 40 has been flipped out of the accommodating space 200 and covered the toilet bowl 50. Then, release the detachable connection between the armrest 30 and the seat plate 10 (such as loosening the buckle, pulling out the pin, etc.). Around the rotation axis of the armrest 30 and the backrest 20, fold the two armrests 30 toward the backrest 20 so that the armrests 30 fit against the sides of the backrest 20.

[0057] Fold the backrest 20 toward the seat plate 10 around the rotation axis of the backrest 20 and the seat plate 10 so that the backrest 20 and the seat plate 10 are nearly parallel. At this time, the cover module and the toilet bowl 50 are wrapped between the backrest and the seat plate to avoid damage from external collisions.

[0058] If further reduction in size is required, the chair legs 100 can be removed from the seat plate 10.

[0059] See Figure 3The seat plate 10 is provided with an insertion space 110, and a locking groove 120 is provided in the insertion space 110; the armrest 30 includes a first armrest component 310 and a second armrest component 320 that are rotatably connected to each other; the end of the first armrest component 310 away from the second armrest component 320 is rotatably connected to the backrest 20; the end of the second armrest component 320 away from the first armrest component 310 is inserted into the insertion space 110; the second armrest component 320 is provided with an elastic locking member 330; the elastic locking member 330 can be locked into the locking groove 120; the elastic locking member 330 is provided with a limiting contact member 340, and the limiting contact member 340 can abut against the upper surface of the seat plate 10. The insertion space 110 and locking groove 120 of the seat plate, together with the segmented first armrest component 310, second armrest component 320 and elastic clip 330 of the armrest component, can quickly achieve a detachable connection between the armrest component and the seat plate component: when the second armrest component 320 is inserted into the insertion space 110, the elastic clip 330 automatically engages with the locking groove 120 to form a stable lock, ensuring that the armrest component does not loosen when supporting the user to stand up or sit down; the limiting contact element 340 abuts against the upper surface of the seat plate component to further improve the locking stability and prevent the armrest from shaking up and down; when the armrest needs to be folded, pressing the elastic clip can release the lock. With the rotational connection of the first and second armrest components and the rotational connection between the first armrest component and the backrest component, the armrest can be folded flexibly, taking into account both the stability of use and the convenience of folding.

[0060] In this utility model, the elastic clip 330 is a spring piece with an integral structure with the second handrail component 320.

[0061] In this utility model, the first armrest component 310 is provided with a storage space that can accommodate the second armrest component 320. When the toilet chair is folded and stored, the second armrest component 320 can be rotated into the storage space for storage.

[0062] See Figure 4 The seat plate 10 is provided with a through mounting opening 130, and a fixing sleeve 510 is provided inside the mounting opening 130. The fixing sleeve 510 is detachably connected to the seat plate 10; the toilet bowl 50 is detachably installed inside the fixing sleeve 510. The mounting opening of the seat plate provides a suitable installation space for the fixing sleeve. The detachable connection between the fixing sleeve and the seat plate not only provides stable support for the toilet bowl through its own structure, ensuring that the toilet bowl does not shift or shake after installation, and is compatible with different sizes of toilet bowls; but also allows for the separate removal of the fixing sleeve or the toilet bowl during cleaning, preventing dirt from remaining in the gaps of the mounting opening of the seat plate, thus balancing installation stability and ease of cleaning.

[0063] In this utility model, the fixed bucket sleeve 510 and the seat plate 10 are connected by existing plug-in, snap-fit ​​or screw-on structures.

[0064] See Figure 4 The toilet bowl 50 includes a bowl body 520 that is movably inserted into the fixed bowl sleeve 510 from top to bottom. The upper end of the bowl body 520 is open and covered by a bowl lid 530. The fixed bowl sleeve 510 abuts against the bowl body 520, thereby restraining the bowl body 520 from moving downward. By abutting against the bowl body 520, the fixed bowl sleeve 510 restrains its downward movement, providing a stable limit for the bowl body 520 and preventing it from moving downward during toilet use. The bowl body 520 can be movably inserted into the fixed bowl sleeve 510 from top to bottom, facilitating quick removal and cleaning. The bowl lid 530 covers the upper opening of the bowl body 520, isolating odors inside the bowl and maintaining hygiene.

[0065] See Figure 2 and Figure 4 The seat plate 10 is rotatably connected to a seat ring 60, and the toilet bowl 50 is located inside and below the seat ring 60; the seat ring 60 is rotatably connected to the seat plate 10; the cover module 40 is located above the seat ring 60. The seat ring provides a support surface that conforms to the buttocks when the user uses the toilet, effectively distributing pressure on the buttocks and improving comfort; the cover module 40 is located above the seat ring 60 and can cover the seat ring after rotation, which can not only prevent the spread of odors from the toilet bowl and maintain a hygienic environment, but also protect the surface of the seat ring from dust or dirt when the toilet chair is not in use.

[0066] See Figures 1 to 3 The cover module 40 includes a first cover plate 410 and a second cover plate 420 rotatably connected to each other; the first cover plate 410 is located behind the second cover plate 420 and the rear side of the first cover plate 410 is rotatably connected to the seat plate 10. In use, the opening and closing range can be flexibly adjusted by rotating the two covers, allowing the seat ring to be exposed without a large overall flip; when not in use, the two covers close together, more tightly isolating odors from the toilet bowl and protecting the seat ring, and the rotating structure adapts to the space requirements during toilet use, improving operational convenience.

[0067] In this utility model, when the cover plate module 40 is flipped to the receiving space 200, the first cover plate 410 partially abuts against the seat plate 10 to constrain the cover plate module 40 from continuing to rotate, thereby achieving a limiting position.

[0068] See Figure 6The seat plate 10 has mounting slots 140 on its left and right rear sides respectively; a connecting element 710 is detachably connected to the mounting slot 140; a rotating element 720 is rotatably connected to the connecting element 710; the rotating element 720 is fixedly connected to the backrest 20; a locking module 80 is connected to the connecting element 710 and the rotating element 720 to constrain their relative rotation. The locking module 80 constrains their relative rotation, fixing the angle when the backrest is unfolded for use, ensuring support stability, and unlocking it for flexible adjustment when folded for storage, balancing safety and ease of operation.

[0069] In this utility model, the connecting element 710 is fixed in the mounting groove 140 by snap-fit ​​and constrained in the mounting groove 140 by the snap-fit ​​structure.

[0070] See Figure 6 The connecting element 710 has a first space inside, and the first space is open towards the rotating element 720; the rotating element 720 has a second space inside, and the second space is open towards the connecting element 710; the locking module 80 includes a first toothed sleeve 810 fixedly disposed in the first space, a second toothed sleeve 820 disposed in the second space, a locking gear 830, an elastic element 840, and a driving element 850; the locking gear 830 is movable along the axial direction of the rotating element 720 and is located between the locked position and the unlocked position. The locking gear 830 moves between the locking and unlocking positions. When the locking gear 830 is in the locked position, it meshes with the first toothed sleeve 810 and the second toothed sleeve 820. When the locking gear 830 is in the unlocked position, it separates from the first toothed sleeve 810. The elastic element 840 applies a force to the locking gear 830 to push it toward the locked position. The driving element 850 is disposed on the connecting element 710 and is movable relative to the connecting element 710 to drive the locking gear 830 toward the unlocked position.

[0071] When locked, under the force of the elastic element 840, the locking gear 830 is pushed to the locked position. At this time, the locking gear 830 meshes with the first toothed sleeve 810 and the second toothed sleeve 820. The relative rotation of the connecting element 710 and the rotating element 720 is constrained by the tooth meshing, thereby fixing the angle of the backrest 20 (fixed with the rotating element 720) and ensuring stable backrest support during use.

[0072] When the backrest 20 needs to be adjusted in angle or folded, the drive element 850 on the connecting element 710 is pushed. The drive element 850 moves relative to the connecting element 710 and applies a force to the locking gear 830, overcoming the thrust of the elastic element 840, and pushing the locking gear 830 from the locked position to the unlocked position. At this time, the locking gear 830 separates from the first gear sleeve 810, the rotational constraint between the connecting element 710 and the rotating element 720 is released, and the backrest 20 can be rotated flexibly to achieve angle adjustment or folding operation.

[0073] In this invention, the driving element 850 is a touch button and is movable along the axis of the rotating element 720. The touch portion of the driving element 850 is located outside the connecting element 710. The driving element 850 is at least partially located within the first space, and a limiting part 860 is provided in this part to abut against and limit the first space. The outer touch portion allows the user to directly press and operate, quickly driving the locking gear to unlock. The limiting part 860 located within the first space abuts against the first space, constraining the driving element 850 and preventing it from separating from the rotating element 720, ensuring the structural connection stability of the driving element, and balancing ease of operation with component assembly reliability.

[0074] 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., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 utility model. 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 technical features indicated.

[0075] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic toilet chair, characterized in that: It includes a seat plate (10), a backrest (20), an armrest (30), a cover module (40), and a toilet bowl (50); The seat plate (10) is detachably connected to several downwardly extending chair legs (100); The backrest (20) is rotatably connected to the seat plate (10); there are two armrests (30) respectively located on the left and right sides of the backrest (20); one end of the armrest (30) is rotatably connected to the backrest (20); the other end of the armrest (30) is detachably connected to the seat plate (10); The toilet bowl (50) is detachably mounted on the seat plate (10); The cover module (40) is disposed above the toilet bowl (50) and is rotatably connected to the seat plate (10); The backrest (20) has a receiving space (200) near the seat plate (10); the cover module (40) can be flipped and folded into the receiving space (200).

2. A plastic toilet seat as claimed in claim 1 wherein: The seat plate (10) is provided with a plug-in space (110), and a locking groove (120) is provided in the plug-in space (110); The armrest component (30) includes a first armrest component (310) and a second armrest component (320) that are rotatably connected to each other; the end of the first armrest component (310) away from the second armrest component (320) is rotatably connected to the backrest component (20); the end of the second armrest component (320) away from the first armrest component (310) is inserted into the insertion space (110); The second armrest component (320) is provided with an elastic latch (330); the elastic latch (330) can be latched into the locking groove (120) to form a lock; the elastic latch (330) is provided with a limiting contact member (340), and the limiting contact member (340) can abut against the upper surface of the seat plate component (10).

3. A plastic toilet seat as claimed in claim 1, wherein: The seat plate (10) is provided with an installation port (130) that runs vertically through it. A fixed bucket sleeve (510) is provided inside the installation port (130). The fixed bucket sleeve (510) is detachably connected to the seat plate (10). The toilet bowl (50) is detachably installed inside the fixed bucket sleeve (510).

4. A plastic toilet seat as claimed in claim 3, wherein: The toilet (50) includes a bucket body (520) that is movably inserted into the fixed bucket sleeve (510) from top to bottom. The upper end of the bucket body (520) is open and covered with a bucket lid (530). The fixed bucket sleeve (510) abuts against the bucket body (520) to constrain the bucket body (520) from moving downward.

5. A plastic toilet seat as defined in claim 1, wherein: The seat plate (10) is rotatably connected to the seat ring (60), the toilet bowl (50) is located inside the seat ring (60) and below the seat ring (60); the seat ring (60) is rotatably connected to the seat plate (10); the cover module (40) is located above the seat ring (60).

6. A plastic toilet seat as defined in claim 1, wherein: The cover plate module (40) includes a first cover plate (410) and a second cover plate (420) that are rotatably connected to each other; the first cover plate (410) is located behind the second cover plate (420) and the rear side of the first cover plate (410) is rotatably connected to the seat plate (10).

7. A plastic toilet seat as defined in claim 1, wherein: The mounting slots (140) are respectively provided on the left and right sides of the rear side of the seat plate (10); a connecting element (710) is detachably connected in the mounting slot (140); the connecting element (710) is rotatably connected to a rotating element (720); The rotating element (720) is fixedly connected to the backrest (20); The connecting element (710) and the rotating element (720) are connected by a locking module (80) that restricts their relative rotation.

8. A plastic toilet seat as claimed in claim 7, wherein: The connecting element (710) has a first space inside and the first space is open to the side facing the rotating element (720); the rotating element (720) has a second space inside and the second space is open to the side facing the connecting element (710); The locking module (80) includes a first toothed sleeve (810) fixedly disposed in the first space, a second toothed sleeve (820) disposed in the second space, a locking gear (830), an elastic element (840), and a driving element (850); The locking gear (830) is movably disposed along the axial direction of the rotating element (720) and moves between the locked position and the unlocked position; When the locking gear (830) is in the locked position, the locking gear (830) meshes with the first toothed sleeve (810) and the second toothed sleeve (820); When the locking gear (830) is in the unlocked position, the locking gear (830) is separated from the first gear sleeve (810); The elastic element (840) is used to apply a force to the locking gear (830) to push the locking gear (830) toward the locking position; The drive element (850) is disposed on the connecting element (710) and is movable relative to the connecting element (710) to drive the locking gear (830) to move toward the unlocked position.

9. A plastic toilet seat as claimed in claim 8, wherein: The driving element (850) is a touch button and is movable along the axis of the rotating element (720); the touch portion of the driving element (850) is located outside the connecting element (710); The drive element (850) is at least partially located within the first space and is provided with a limiting part (860) that abuts against and limits the first space.

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