Automatic cover opening and closing device and intelligent closestool using same

Abstract

The utility model discloses an automatic cover opening and closing device and an intelligent closestool using the automatic cover opening and closing device. The automatic cover opening and closing device comprises a shell, an output shaft and a torsional spring, an axial limiting part used for being matched with one shaft side end of the torsion spring in an abutting mode is arranged in the shell. The torsional spring is connected with the axial limiting part through a first clamping head extending in the radial direction of an inner diameter hole of the torsional spring; the axial limiting part is provided with a first clamping groove matched with the first clamping head; the first clamping groove is defined by a first radial limiting wall and a second radial limiting wall which are oppositely arranged. The first radial limiting wall and the second radial limiting wall are used for clamping and limiting a pair of radial side walls of the first clamping head in the radial direction of the torsional spring; the first clamping groove further comprises a first axial limiting wall and a second axial limiting wall which are used for clamping and limiting a pair of axial side walls, in the axial direction of the torsional spring, of the first clamping connector and are distributed oppositely. The fixed end of the torsion spring can keep the stability of the position, so that the deformation process of the torsion spring is reliable and stable, and the torsion value is more accurate.

Description

Technical Field

[0001] The utility model relates to the field of intelligent toilets, in particular to an automatic opening and closing cover device and an intelligent toilet using the same. Background Art

[0002] The development of smart home is booming, and various smart household appliances are emerging one after another. The intelligent toilet is one of the smart home products deeply welcomed by consumers. The use of an intelligent toilet is inseparable from its toilet lid that can be automatically opened and closed, and for this, an automatic opening and closing cover device is needed to realize the automatic opening and closing of the toilet lid.

[0003] Specifically, in combination with the conventional automatic opening and closing cover device in the prior art, its general principle is to realize the opening and closing of the toilet cover plate through the cooperation of a motor, a reduction gear set, an output shaft body and a torsion spring arranged on the output shaft body. When the automatic opening and closing cover device closes the toilet seat or the toilet lid, the torsion spring will be compressed to store energy. When opening the toilet seat or the toilet lid, the torsion spring will gradually release the torsion force to play an assisting role.

[0004] Based on the above situation, the publication number CN215993787U discloses a rotation angle execution device for a toilet cover plate, and the torsion spring adopted by it is matched with the shell through a clamping joint extending along its radial direction. For the use process of this torsion spring, one end of it is matched with the shell to form a fixed end, and the other end is connected to the output shaft to form a movable end that can move synchronously with the rotation of the output shaft, so that the torsion spring is deformed due to the rotation of the output shaft. For this process, for the reliability of the torsion spring deformation and the accuracy of the torsion value, it is necessary to form a reliable limit for the fixed end of the torsion spring to prevent it from loosening axially or radially relative to the shell.

[0005] Therefore, aiming at the problem of the fixed limit of the fixed end of the torsion spring, it is necessary to further optimize its structure. Summary of the Utility Model

[0006] The first object of the utility model is to provide an automatic opening and closing cover device to solve the technical problem of optimizing the fixed limit structure of the fixed end of the torsion spring to improve the reliability of the torsion spring deformation.

[0007] The second object of the utility model is to provide an intelligent toilet to solve the technical problem of optimizing the fixed limit of the fixed end of the torsion spring in the adopted automatic opening and closing cover device to improve the reliability of the torsion spring deformation.

[0008] The automatic opening and closing cover device of the utility model is realized as follows:

[0009] An automatic opening and closing cover device includes: a shell and an output shaft and a torsion spring that are used in cooperation and arranged in the shell; wherein

[0010] An axial limiting portion for abutting and cooperating with one axial end of the torsion spring is provided inside the housing;

[0011] The torsion spring is connected to the axial limiting portion through a first clamping joint extending radially along the inner diameter hole thereof; the axial limiting portion is provided with a first clamping groove adapted to the first clamping joint; and

[0012] The first clamping groove is formed by enclosing a first radially limiting wall and a second radially limiting wall which are opposite to each other; the first radially limiting wall and the second radially limiting wall are used for clamping a pair of radial side walls of the first clamping joint along the radial direction of the torsion spring;

[0013] The first clamping groove further includes a first axial limiting wall and a second axial limiting wall which are distributed oppositely and are used for clamping a pair of axial side walls of the first clamping joint along the axial direction of the torsion spring.

[0014] In an optional embodiment of the present utility model, the first axial limiting wall is bent and connected to the first radially limiting wall; the second axial limiting wall is bent and connected to the second radially limiting wall; and

[0015] The first axial limiting wall and the second axial limiting wall are arranged in a high-low dislocation state along the axial direction of the first clamping joint.

[0016] In an optional embodiment of the present utility model, the first axial limiting wall is bent and connected to the first radially limiting wall; the second axial limiting wall is simultaneously bent and connected to the first radially limiting wall and the second radially limiting wall; and

[0017] The first axial limiting wall and the second axial limiting wall are arranged in a high-low dislocation state along the axial direction of the first clamping joint.

[0018] In an optional embodiment of the present utility model, a groove opening adapted for the first clamping joint to be clamped into the first clamping groove is formed between the first axial limiting wall and the second radially limiting wall.

[0019] In an optional embodiment of the present utility model, along the width direction perpendicular to the radial direction and the axial direction of the torsion spring, the width of the groove opening is smaller than the width of the first clamping joint.

[0020] In an optional embodiment of the present utility model, the first axial limiting wall includes a clamping surface for clamping the axial side wall of the first clamping joint, which is arranged opposite to the second axial limiting wall, a connecting surface which is bent and connected to the clamping surface and faces the second radially limiting wall, and a guiding surface which is connected to the edge on the side far from the clamping surface of the connecting surface.

[0021] In an optional embodiment of the present utility model, the groove opening is formed between the connecting surface and the second axial limiting wall.

[0022] In an optional implementation of the present invention, the guide surface and the engaging surface form an obtuse angle structure at the side end facing away from the slot opening.

[0023] In an optional implementation of the utility model, the output shaft is provided with a connecting portion for abutting and cooperating with one shaft side end of the torsion spring;

[0024] The torsion spring is connected to the connecting portion via a second clamping joint extending along the axial direction thereof; and

[0025] The connecting portion is also provided with a second locking groove adapted to the second locking connector.

[0026] The intelligent toilet of the utility model is realized as follows:

[0027] A smart toilet comprises: the automatic cover opening and closing device.

[0028] By adopting the above technical solution, the utility model has the following beneficial effects: for the automatic opening and closing cover device of the utility model and the smart toilet using the same, for the fixed end (first clamping joint) of the torsion spring connected to the shell, the first clamping groove on the shell is used to realize reliable limiting of the fixed end of the torsion spring. When the torsion spring is deformed with the rotation of the output shaft, the fixed end of the torsion spring can maintain the stability of its position, and neither shaking along the radial direction of the torsion spring nor moving along the axial direction of the torsion spring will occur, so that the deformation process of the torsion spring is reliable and stable, and the torque value is more accurate. Furthermore, for the assembly process between the first clamping joint of the torsion spring and the first clamping groove, it only needs a simple clamping fit, and does not require a cumbersome assembly process, nor does it require complicated assembly parts to achieve, so the reliable fixation of the first clamping joint of the torsion spring can be achieved based on a simplified structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the automatic cover opening and closing device of the utility model;

[0030] Figure 2 It is a partial structural schematic diagram of the automatic cover opening and closing device of the utility model;

[0031] Figure 3 It is a schematic structural diagram of the axial limit portion of the automatic opening and closing cover device of the utility model from a first viewing angle;

[0032] Figure 4 It is a schematic structural diagram of the axial limit portion of the automatic opening and closing cover device of the utility model from a second viewing angle;

[0033] Figure 5 It is a partial enlarged structural schematic diagram of the axial limit portion of the automatic opening and closing cover device of the utility model;

[0034] Figure 6The first perspective structural schematic diagram of the torsion spring and the axial limiting part of the automatic cover opening and closing device of the present utility model in a matching state;

[0035] Figure 7 The second perspective structural schematic diagram of the torsion spring and the axial limiting part of the automatic cover opening and closing device of the present utility model in a matching state;

[0036] Figure 8 The partial enlarged structural schematic diagram of the torsion spring and the axial limiting part of the automatic cover opening and closing device of the present utility model in a matching state;

[0037] Figure 9 The structural schematic diagram of the torsion spring of the automatic cover opening and closing device of the present utility model;

[0038] Figure 10 The structural schematic diagram of the output gear of the automatic cover opening and closing device of the present utility model.

[0039] In the figure: housing 1, motor 2, reduction gear set 3, output shaft 4, torsion spring 5, first clamping joint 51, second clamping joint 52, output gear 9, second clamping groove 91, axial limiting part 10, first clamping groove 101, first radial limiting wall 1011, second radial limiting wall 1012, first axial limiting wall 1013, clamping surface 10131, connecting surface 10132, guiding surface 10133, second axial limiting wall 1014, notch 1015, groove opening 1016, columnar limiting part 102. Detailed implementation manners

[0040] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments in conjunction with the accompanying drawings.

[0041] Embodiment 1:

[0042] Please refer to Figures 1 to 10 As shown, this embodiment provides an automatic cover opening and closing device, and the automatic cover opening and closing device here generally includes a housing 1, a motor 2, a reduction gear set 3, an output shaft 4 and a torsion spring 5; the specific implementation principle of the torsion spring 5 in this embodiment is not improved either. This embodiment mainly illustrates how to improve the reliable stability of the torsion spring 5 during use from the cooperation level between the torsion spring 5 and the housing 1.

[0043] An automatic cover opening and closing device includes: a housing 1 and an output shaft 4 and a torsion spring 5 that are used in cooperation in the housing 1; an axial limiting part 10 for abutting and cooperating with one axial end of the torsion spring 5 is provided in the housing 1. The torsion spring 5 is connected to the axial limiting part 10 through a first clamping joint 51 extending radially along the inner diameter hole of the torsion spring 5; the axial limiting part 10 is provided with a first clamping groove 101 adapted to the first clamping joint 51.

[0044] As an example of an optional situation, the specific matching mode between the first locking groove 101 and the first locking connector 51 is realized by the following structure:

[0045] The first locking groove 101 is formed by enclosing the first radial limiting wall 1011 and the second radial limiting wall 1012 which are opposite to each other; the first radial limiting wall 1011 and the second radial limiting wall 1012 are used to limit a pair of radial side walls of the first clamping joint 51 along the radial direction of the torsion spring; the first locking groove 101 also includes a pair of axial side walls for limiting the first clamping joint 51 along the axial direction of the torsion spring and are relatively distributed. Specifically, the first radial limiting wall 1011 contacts the first clamping joint 51 when the torsion spring is compressed, and limits the rotation of the first clamping joint 51; the second radial limiting wall 1012 limits the rotation of the first clamping joint 51 along the release direction of the torsion spring 5. In this way, when the torsion spring 5 is deformed with the rotation of the output shaft 4, the fixed end of the torsion spring 5 can maintain the stability of its position, and neither shaking in the radial direction of the torsion spring 5 nor moving in the axial direction of the torsion spring 5 will occur, so that the deformation process of the torsion spring 5 is reliable and stable, and the torque value is more accurate.

[0046] Next, the first specific optional implementation is exemplified in conjunction with the accompanying drawings, where the first axial limiting wall 1013 is bent and connected to the first radial limiting wall 1011; the second axial limiting wall 1014 is bent and connected to the second radial limiting wall 1012. Based on this structure, when the torsion spring 5 is compressed, its first clamping joint is in contact with the first radial limiting wall 1011, so it is necessary to arrange the second axial limiting wall 1014 on the opposite side of the first radial limiting wall 1011 to obtain a larger axial resistance area and achieve more stable axial limiting. Here, since the first radial limiting wall 1011 and the second axial limiting wall 1014 are not directly connected, there is a gap 1015 between the first radial limiting wall 1011 and the second axial limiting wall 1014, which improves the ease of deformation of the first radial limiting wall 1011. Here, the first radial limiting wall 1011 and the corresponding first axial limiting wall 1013 need to be appropriately deformed relative to the first radial limiting wall 1011 to facilitate the first clamping joint 51 to be clamped into the first fixing groove 10.

[0047] Here, in combination with the first clamping joint 51 which is generally of a regular shape, for example, the first clamping joint 51 is roughly of a rectangular structure, then at this time, the first axial limiting wall 1013 and the first radial limiting wall 1011 are preferably in a vertical bending fit relationship. Similarly, the second axial limiting wall 1014 and the second radial limiting wall 1012 are also preferably in a vertical bending fit relationship.

[0048] On the basis of the above structure, it should also be noted that the first axial limiting wall 1013 and the second axial limiting wall 1014 are arranged in a high-low staggered manner along the axis of the first engaging head 51.

[0049] Next, an example of the second specific optional implementation case will be given in conjunction with the accompanying drawings. The first axial limiting wall 1013 and the first radial limiting wall 1011 are bent and connected; the second axial limiting wall 1014 is simultaneously bent and connected to both the first radial limiting wall 1011 and the second radial limiting wall 1012; and the first axial limiting wall 1013 and the second axial limiting wall 1014 are arranged in a high-low staggered manner along the axis of the first engaging head.

[0050] Based on the above two different implementation cases, it should be noted that a slot opening 1016 suitable for the first engaging head 51 to be inserted into the first locking groove is formed between the first axial limiting wall 1013 and the second radial limiting wall 1012. Here, along the width direction perpendicular to the radial and axial directions of the torsion spring 5, the width of the slot opening 1016 is smaller than the width of the first engaging head 51.

[0051] Furthermore, it should be detailed that for the first axial limiting wall 1013 adopted in this embodiment, it includes a engaging surface 10131 for clamping and limiting the axial side wall of the first engaging head, which is arranged opposite to the second axial limiting wall 1014, a connecting surface 10132 that is bent and connected to the engaging surface 10131 and faces the second radial limiting wall 1012, and a guiding surface 10133 that is connected to the edge on the side of the connecting surface 10132 away from the engaging surface 10131. Among them, a slot opening 1016 is formed between the connecting surface 10132 and the second axial limiting wall 1014. In an optional implementation case, an obtuse angle structure is formed between the guiding surface 10133 and the engaging surface 10131 at the side end facing away from the slot opening 1016, and the range of this obtuse angle structure can be 135 - 160°. In this structure, when the first engaging head 51 is inserted into the first locking groove 101, the first engaging head 51 first contacts the guiding surface 10133. Due to the design of the obtuse angle structure between the guiding surface 10133 and the engaging surface 10131, the first engaging head 51 can slide along the guiding surface 10133 and be inserted into the first locking groove 101.

[0052] In addition, it should be noted that an engaging portion for abutting and cooperating with one axial side end of the torsion spring 5 is provided on the output shaft 4; the torsion spring 5 is connected to the engaging portion through a second engaging head 52 extending along its axis; and the engaging portion is also provided with a second locking groove 91 adapted to the second engaging head 52. In this way, for the two axial side ends of the torsion spring, the axial limiting and supporting effects during its deformation process are respectively realized through the axial limiting portion 10 of the housing 1 and the engaging portion of the output shaft 4, making the deformation process of the torsion spring 5 reliable and stable, and the torsion value more accurate.

[0053] Regarding the connection part involved in this embodiment, in an alternative embodiment, the connection part is a part of the structure of the output shaft 4, and in this case, the connection part can be integrally formed on the output shaft 4. In another alternative embodiment, the connection part is an output gear 9 assembled on the output shaft 4 for driving the output shaft 4 to rotate. The above two different cases theoretically meet the usage requirements of this embodiment. This embodiment only takes the case where the connection part adopts the output gear 9 as an example for illustration in combination with the accompanying drawings.

[0054] Furthermore, for the limitation of the torsion spring 5, in addition to the abutment at both axial ends, the following design is also made in this embodiment:

[0055] Based on the above situation, it is also necessary to explain that for the deformation process of the torsion spring 5, it is also necessary to limit the form of its deformation (here mainly by limiting the radial layer of the inner hole of the torsion spring 5). For this, an axial positioning part needs to be designed in the inner hole of the torsion spring 5. For this, in order to meet this usage requirement, the following design is made in this embodiment:

[0056] In the first embodiment, the torsion spring 5 is sleeved on the output shaft 4, and the outer diameter of the output shaft 4 is smaller than the inner diameter of the torsion spring 5; at this time, that is to say, for the axial limiting part 10 of the housing 1, it only needs to be in abutting cooperation with one axial end of the torsion spring 5.

[0057] In the second embodiment, a columnar limiting part 102 suitable for passing through the inner hole of the torsion spring 5 is provided in the housing 1, and the outer diameter of the columnar limiting part 102 is smaller than the inner diameter of the torsion spring 5. At this time, that is to say, for the output shaft 4, it only needs to make the output gear 9 on the output shaft 4 be in abutting cooperation with one axial end of the torsion spring 5.

[0058] In the third embodiment, the torsion spring 5 is partially sleeved on the output shaft 4, and the outer diameter of the output shaft 4 is smaller than the inner diameter of the torsion spring 5; and a columnar limiting part 102 suitable for inserting into the inner hole of the torsion spring 5 and not in contact with the output shaft 4 is provided in the housing 1, and the outer diameter of the columnar limiting part 102 is smaller than the inner diameter of the torsion spring 5. Here, for the outer diameter of the shaft body of the output shaft 4 inserted into the inner hole of the torsion spring 5 and the outer diameter of the columnar limiting part 102, they can be the same or different, and this embodiment does not make an absolute limitation on this. However, it should be noted that when the torsion spring 5 is assembled in place with both the output shaft 4 and the columnar limiting part 102 at the same time, for the case where the output shaft 4 and the columnar limiting part 102 are not in contact, it can be that there is a certain gap between them axially, and this gap should not be too large; it can also be that there is a certain gap between them radially, and the gap at this time should also not be too large. That is, as long as the output shaft 4 and the columnar limiting part 102 do not form mutual interference and can simultaneously realize the radial positioning during the deformation of the torsion spring 5, the usage requirements here can theoretically be met.

[0059] In summary, for the automatic opening and closing cover device of this embodiment, the deformation process of the torsion spring 5 is reliable and stable, and the torsion value is more accurate.

[0060] Embodiment 2:

[0061] Based on the automatic opening and closing cover device of Embodiment 1, this embodiment provides an intelligent toilet, including: the automatic opening and closing cover device of Embodiment 1. This rotating opening and closing cover device is mainly applied to the toilet seat or toilet lid of the intelligent toilet. When the automatic opening and closing cover device closes the toilet seat or toilet lid, it will compress the torsion spring 5 to store energy in the torsion spring 5. When opening the toilet seat or toilet lid, the torsion spring 5 will gradually release the torsion to play an assisting role.

[0062] The above specific embodiments have further elaborated on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0063] In the description of the present invention, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0064] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0066] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0067] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

Claims

1. An automatic cover opening and closing device, characterized in that: include: A housing and an output shaft and a torsion spring arranged in the housing for use together; wherein An axial limiting portion for abutting and cooperating with an axial side end of the torsion spring is provided in the housing; The torsion spring is connected to the axial limit portion through a first clamping joint extending radially along the inner diameter hole of the torsion spring; the axial limit portion is provided with a first clamping groove adapted to the first clamping joint; and The first locking groove is formed by enclosing a first radial limiting wall and a second radial limiting wall which are opposite to each other; the first radial limiting wall and the second radial limiting wall are used to limit a pair of radial side walls of the first locking joint along the radial direction of the torsion spring; The first locking groove also includes a first axial limiting wall and a second axial limiting wall which are a pair of axial side walls for locking the first locking joint along the axial direction of the torsion spring and are relatively distributed.

2. The automatic cover opening and closing device according to claim 1, characterized in that: The first axial limiting wall is connected to the first radial limiting wall by bending; the second axial limiting wall is connected to the second radial limiting wall by bending; and The first axial limiting wall and the second axial limiting wall are arranged in a high-low staggered manner along the axial direction of the first clamping joint.

3. The automatic cover opening and closing device according to claim 1, characterized in that: The first axial limiting wall is connected to the first radial limiting wall by bending; the second axial limiting wall is connected to the first radial limiting wall and the second radial limiting wall by bending; and The first axial limiting wall and the second axial limiting wall are arranged in a high-low staggered manner along the axial direction of the first clamping joint.

4. The automatic lid opening and closing device according to claim 2 or 3, characterized in that: A slot opening suitable for the first clamping joint to be clamped into the first clamping slot is formed between the first axial limiting wall and the second radial limiting wall.

5. The automatic cover opening and closing device according to claim 4, characterized in that: Along a width direction perpendicular to the radial direction and the axial direction of the torsion spring, the width of the slot opening is smaller than the width of the first clamping joint.

6. The automatic cover opening and closing device according to claim 5, characterized in that: The first axial limiting wall includes a clamping surface arranged opposite to the second axial limiting wall and used to clamp the axial side wall of the first clamping joint, a connecting surface bent and connected to the clamping surface and facing the second radial limiting wall, and a guide surface connected to the side edge of the connecting surface away from the clamping surface.

7. The automatic cover opening and closing device according to claim 6, characterized in that: The groove opening is formed between the connecting surface and the second axial limiting wall.

8. The automatic cover opening and closing device according to claim 6, characterized in that: The guide surface and the engaging surface form an obtuse angle structure at the side end facing away from the slot opening.

9. The automatic cover opening and closing device according to claim 1, characterized in that: The output shaft is provided with a connecting portion for abutting and cooperating with one shaft side end of the torsion spring; The torsion spring is connected to the connecting portion via a second clamping joint extending along the axial direction thereof; and The connecting portion is also provided with a second locking groove adapted to the second locking connector.

10. A smart toilet, characterized in that: include: An automatic lid opening and closing device as claimed in any one of claims 1 to 9.

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