CN114451798A - Toilet lid gear box and toilet - Google Patents
Toilet lid gear box and toilet Download PDFInfo
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- CN114451798A CN114451798A CN202111621708.5A CN202111621708A CN114451798A CN 114451798 A CN114451798 A CN 114451798A CN 202111621708 A CN202111621708 A CN 202111621708A CN 114451798 A CN114451798 A CN 114451798A
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- toilet lid
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- 230000005540 biological transmission Effects 0.000 claims abstract description 153
- 230000000670 limiting effect Effects 0.000 claims description 40
- 230000007306 turnover Effects 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- 230000006872 improvement Effects 0.000 description 13
- 230000003068 static effect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K13/00—Seats or covers for all kinds of closets
- A47K13/10—Devices for raising and lowering, e.g. tilting or lifting mechanisms; Collapsible or rotating seats or covers
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Abstract
The invention discloses a toilet lid gear box and a toilet, wherein the toilet lid gear box comprises a shell, a driving unit, a transmission unit, an output unit and a protection unit, the driving unit comprises a driving piece, the output unit comprises an output shaft, the transmission unit comprises a tail end transmission piece, the protection unit is provided with a plurality of friction plates which are mutually extruded and can mutually rotate, the tail end transmission piece can form transmission connection with the output shaft through the friction plates which are mutually extruded in the protection unit, and the friction plates of the protection unit can slip to break the transmission connection between the output shaft and the tail end transmission piece. The toilet includes a toilet lid gear box as described above. By adopting the invention, when the toilet lid is subjected to larger torque, the connection between the driving unit and the output shaft can be disconnected in time, so that the driving unit and the toilet lid are protected.
Description
Technical Field
The invention relates to the technical field of bathrooms, in particular to a toilet cover gear box and a toilet.
Background
The toilet lid of the existing intelligent toilet is generally provided with an automatic opening/closing function, which needs to be realized by means of a gear box driving system in the toilet lid, and in the system, a driving motor can control the turnover of the toilet lid through a transmission mechanism. However, when the toilet lid is turned over, an obstacle may be encountered, so that the angle of the toilet lid is not changed, and the driving motor always outputs through a conventional mechanism. For example, patent publication No. CN208388520U discloses an intelligent flip toilet lid, in which a motor shaft of a driving motor is connected to a driving gear, the driving gear is connected to a driving gear through engagement with a driven gear, the driving gear is connected to a connecting portion through a counter shaft, and the connecting portion is fixed to a lid plate. Since the connection method is equivalent to rigidly connecting the toilet lid with the output shaft of the driving motor, when resistance occurs and the toilet lid is prevented from being turned over, the driving motor may be damaged due to excessive load, or the rigid connection structure in the toilet lid may be broken due to opposite acting force, which affects the normal operation of the whole toilet lid.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a toilet lid gear box which can disconnect the connection between the driving unit and the output shaft in time when the toilet lid is subjected to a large torque, so as to protect the driving unit and the toilet lid.
In order to solve the technical problem, the invention provides a toilet lid gear box which can drive a toilet lid to turn over and comprises a shell, a driving unit, a transmission unit, an output unit and a protection unit, wherein the driving unit comprises a driving piece, the output unit comprises an output shaft, the driving piece is connected with the output shaft through the transmission unit and the protection unit, and the output shaft is connected with an external toilet lid.
The transmission unit comprises a tail end transmission part, the protection unit is provided with a plurality of friction plates which are mutually extruded and can rotate, one side of the protection unit is connected with the tail end transmission part, the other side of the protection unit is connected with the output shaft, the tail end transmission part can be in transmission connection with the output shaft through the friction plates which are mutually extruded, and the friction plates can slip to disconnect the transmission connection between the output shaft and the tail end transmission part.
As an improvement of the above scheme, the protection unit includes a plurality of first friction plates and a plurality of second friction plates, each of the first friction plates and the second friction plates are stacked at intervals to form a friction plate group, the plurality of first friction plates can simultaneously form a limit connection with the output shaft, and the plurality of second friction plates can simultaneously form a limit connection with the end transmission member.
As an improvement of the scheme, one end of the output shaft is an output section, the other end of the output shaft is a connecting section, the output section is connected with an external toilet lid, and the connecting section can penetrate through the middle parts of the first friction plate and the second friction plate simultaneously.
As an improvement of the above scheme, the output shaft further includes a first limiting clamping block, the first limiting clamping block is disposed on the connecting section, a first through hole is formed in the middle of the first friction plate, the connecting section can be inserted into the first through hole, a first limiting bayonet is disposed on the inner side of the first through hole, and the shape of the first limiting clamping block is matched with that of the first limiting bayonet, so that the first friction plate and the output shaft form limiting connection.
As an improvement of the above scheme, a second through hole is formed in the middle of the second friction plate, the inner wall profile of the second through hole is not smaller than the solid part of the connecting section, and the connecting section can be inserted into the second through hole to rotate freely.
As an improvement of the scheme, the outer side of the tail end transmission part is provided with transmission teeth, the inner side of the tail end transmission part is provided with an accommodating cavity, the transmission teeth are indirectly connected with the driving part, and the friction plate group is arranged in the accommodating cavity.
As an improvement of the above scheme, the inner side wall of the accommodating cavity is provided with a second limiting bayonet, the outer edge of the second friction plate is provided with a second limiting fixture block, the shape of the second limiting fixture block is matched with that of the second limiting bayonet, and the second limiting fixture block can be inserted into the second limiting bayonet so that the second friction plate and the terminal transmission member form limiting connection.
As an improvement of the above scheme, an outer edge profile of the first friction plate is not greater than an inner wall profile of the accommodating cavity, and the first friction plate can freely rotate in the accommodating cavity.
As an improvement of the above scheme, the protection unit further includes a retaining member and at least 1 elastic member, the retaining member is sleeved with the connecting section, the retaining member can be abutted to one side of the output section, which is far away from the friction plate group, of the connecting section, the elastic member is sleeved with the connecting section, the elastic member can be abutted to one side, which is close to the output section, of the friction plate group, and the retaining member and the elastic member can enable the first friction plate and the second friction plate to be extruded with each other.
As an improvement of the above scheme, the protection unit further comprises an angle sensor, and the angle sensor is connected with the output shaft.
As an improvement of the above scheme, the transmission unit further includes a head end transmission member and an intermediate transmission member, the head end transmission member is connected to the driving member, and the head end transmission member can be in transmission connection with the tail end transmission member through the intermediate transmission member.
As an improvement of the scheme, the edges of the head end transmission part, the intermediate transmission part and the tail end transmission part are respectively provided with a gear, and the gears of the head end transmission part, the intermediate transmission part and the tail end transmission part are meshed with each other.
As the improvement of the above scheme, the driving unit further comprises a gear rod, the gear rod is connected with the movable end of the driving piece, the outer wall of the gear rod is provided with a helical gear, the gear rod is vertically arranged, the outer wall of the head end driving piece is provided with the helical gear, and the gear rod is meshed with the head end driving piece.
As an improvement of the above scheme, the housing includes a front housing, a middle housing and a rear housing, the transmission unit and the output unit are disposed in the middle housing, the output shaft can penetrate through the rear housing and protrude outward, and the front housing is fixed to a side of the middle housing opposite to the rear housing.
The invention also provides a toilet bowl which comprises the toilet lid gear box.
The implementation of the invention has the following beneficial effects:
the toilet lid gear box is provided with a driving unit, an output unit and a protection unit, wherein the driving unit comprises a driving piece, the driving piece is connected with an output shaft in the output unit through a tail end transmission piece and the protection unit of the transmission unit, the protection unit is provided with a plurality of friction plates which are mutually extruded and can mutually rotate, the tail end transmission piece and the output shaft are connected with different sides of the protection unit, friction force exists between the friction plates which are mutually extruded in the protection unit during normal overturning, and the tail end transmission piece can be in transmission connection with the output shaft under the condition of enough large friction force, so that a toilet lid is overturned; once the toilet lid meets the external larger torque to form power or resistance to the turnover of the toilet lid, when the power or the resistance is larger than the friction force between the friction plates, the friction plates of the protection unit slip, so that the transmission connection between the output shaft and the tail end transmission part is timely disconnected, at the moment, the driving part can continuously and normally rotate to avoid damaging the driving motor, and the output shaft can be static relative to the toilet lid, so that the toilet lid is protected.
Secondly, the protection unit includes a plurality of first friction discs and a plurality of second friction discs, the quantity of first friction disc with the second friction disc can carry out adaptability and adjust, when the quantity is great, can improve total frictional force, makes the driving piece can drive bigger load, otherwise when the quantity is less, the driving piece more easily with the output shaft separation to reach the effect of nimble adjustment, have more extensive suitability.
In addition, the friction plate group that first friction disc with the second friction disc constitutes is hidden and is received in the end transmission spare, can be in effective drive under the condition of output shaft, greatly saved the space, can adapt to narrow and small space such as toilet lid.
Drawings
FIG. 1 is a schematic view of a disassembled structure of a gear box of a toilet cover according to the present invention;
FIG. 2 is a schematic illustration of a disassembled structure of the transmission unit, the protection unit and the output unit of the present invention;
FIG. 3 is a schematic view of a partially disassembled structure of the friction plate pack of the present invention;
FIG. 4 is a sectional view of the first friction plate and the end transmission member of the present invention;
FIG. 5 is a sectional view of the second friction plate and the end transmission member according to the present invention;
FIG. 6 is a schematic view of the construction of an end drive of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.
Referring to fig. 1, 2 and 3, the embodiment of the invention discloses a toilet lid gear box capable of driving a toilet lid to turn (the toilet lid is not shown in the figure), the toilet lid gear box comprises a housing 1, a driving unit 2, a transmission unit 3, an output unit 4 and a protection unit 5, the driving unit 2 comprises a driving member 21, the output unit 4 comprises an output shaft 41, the driving member 21 is connected with the output shaft 41 through the transmission unit 3 and the protection unit 5, the output shaft 41 is connected with an external toilet lid, and the external toilet lid is turned and driven through the transmission of driving force. The driving member 21 is preferably a motor commonly used in the bathroom field, and may also be a driving component such as a cylinder having a driving function.
The transmission unit 3 comprises a terminal transmission member 31, the terminal transmission member 31 is located at the terminal position of the transmission chain and directly connected with the protection unit 5, the protection unit 5 is provided with a plurality of friction plates (51,52) which are mutually extruded and can rotate, the friction plates (51,52) which are mutually extruded can provide static friction force for the transmission system, when the friction plates need to rotate mutually, the static friction force between the friction plates (51,52) needs to be overcome, and after the static friction force is overcome, the friction plates (51,52) can slip. The protection unit 5 is connected to the end transmission member 31 at one side and to the output shaft 41 at the other side, in this embodiment, the end transmission member 31 is preferably connected to the outer side of the protection unit 5, and the output shaft 41 is preferably connected to the inner side of the protection unit 5. The end transmission member 31 can be in transmission connection with the output shaft 41 through the friction plates (51,52) mutually extruded in the protection unit 5, when the friction plates (51,52) are mutually extruded, under the action of static friction force, each friction plate (51,52) can rotate along with the end transmission member 31, so that the rotation is transmitted to the output shaft 41, and the output shaft 41 drives the toilet lid to turn over.
When a person applies a large torque to turn the toilet lid to accelerate turning, the torque is transmitted to the output shaft 41 through the toilet lid, when the torque is larger than the torque output by the end transmission member 31 to the output shaft 41, the output shaft 41 rotates relative to the end transmission member 31, and friction plates respectively connected with the end transmission member 31 and the output shaft 41 slip, so that the transmission connection between the output shaft 41 and the end transmission member 31 is disconnected, at this time, the driving member 21 can normally rotate to control the end transmission member 31, and the output shaft 41 can keep relatively static with the toilet lid and turn over at a large angle under the influence of the person, so that the driving member 21 and the toilet lid are normally protected. When the toilet lid is blocked by people to prevent the toilet lid from being turned over by resistance, the resistance on the toilet lid acts on the output shaft 41 in reverse, because the output shaft 41 and the toilet lid are fixedly connected, the output shaft 41 needs to be stationary relative to the toilet lid to protect the toilet lid, and when the resistance is greater than the static friction force of the friction plates, the friction plates can rub against each other to slip, so that the friction plates (51,52) can slip to break the transmission connection between the output shaft 41 and the end transmission member 31, so that the output shaft 41 stops rotating to protect the toilet lid, and the end transmission member 31 can continue to rotate to protect the driving member 21.
Therefore, the embodiment of the invention has the following beneficial effects:
the toilet lid gear box of the embodiment of the invention is provided with a driving unit 2, a transmission unit 3, an output unit 4 and a protection unit 5, wherein the transmission unit 3 comprises an end transmission piece 31, the driving unit 2 comprises a driving piece 21, the output unit 4 comprises an output shaft 41, the protection unit 5 is provided with a plurality of friction plates (51,52) which are mutually extruded and can mutually rotate, the driving piece 21 is connected with the output shaft 41 through the end transmission piece 31 and the protection unit 5, wherein the end transmission piece 31 and the output shaft 41 are connected with different sides of the protection unit 5, the friction plates (51,52) mutually extruded in the protection unit 5 can have static friction force during normal overturning, and the end transmission piece 31 can form transmission connection with the output shaft 41 under the condition of enough static friction force, thereby overturning the toilet lid; once the toilet lid encounters a larger torque from the outside to form a power or resistance to the turning of the toilet lid, when the power or resistance is greater than the friction between the friction plates (51,52), a slip occurs between the friction plates of the protection unit 5, so that the transmission connection between the output shaft 41 and the end transmission member 31 is timely disconnected, and at this time, the driving member 21 can continue to rotate normally to avoid damaging the driving motor, and the output shaft 41 can be stationary relative to the toilet lid, thereby protecting the toilet lid.
Specifically, the protection unit 5 includes a plurality of first friction plates 51 and a plurality of second friction plates 52, each of the first friction plates 51 and the second friction plates 52 are stacked at intervals to form a friction plate group 53, the friction plate group 53 is a long cylindrical type, and the plurality of first friction plates 51 and the plurality of second friction plates 52 are spaced and pressed to cause static friction to exist between each of the first friction plates 51 and each of the second friction plates 52. The number of the first friction plate 51 and the second friction plate 52 can be adaptively adjusted, when the number is large, the total friction force can be increased, so that the driving member 21 can drive a larger load, otherwise, when the number is small, the driving member 21 is more easily separated from the output shaft 41, thereby achieving the effect of flexible adjustment and having wider applicability.
Different friction plates of the friction plate group 53 can be respectively connected with the output shaft 41 and the end transmission member 31, a plurality of first friction plates 51 can be simultaneously connected with the output shaft 41 in a limiting manner, a plurality of second friction plates 52 can be simultaneously connected with the end transmission member 31 in a limiting manner, moreover, the first friction plates 51 are only connected with the output shaft 41 in a limiting manner, and the second friction plates 52 are individually connected with the end transmission member 31 in a limiting manner, so that the effects of individual connection, no influence and individual control are realized.
Specifically, one end of the output shaft 41 is an output section 411, the other end is a connecting section 412, the output section 411 is connected with an external toilet lid, the connecting section 412 can simultaneously pass through the middle parts of the first friction plate 51 and the second friction plate 52, but only the first friction plate 51 has a connecting effect on the connecting section 412, and the second friction plate 52 has no connecting control effect on the connecting section 412. In this embodiment, the connecting section 412 is provided with a first limiting fixture block 413, the middle of the first friction plate 51 is provided with a first through hole 511, the connecting section 412 can be inserted into the first through hole 511, meanwhile, in order to connect with the connecting section 412, a first limiting bayonet 512 is arranged inside the first through hole 511, the shape of the first limit clamping block 413 is matched with that of the first limit clamping opening 512, so that the first friction plate 51 and the output shaft 41 form limit connection, when the first friction plate 51 is rotated by the end transmission member 31 or the second friction plate 52, under the limiting action of the first limiting bayonet 512 and the first limiting bayonet 512, the output shaft 41 will follow the first friction plate 51 to rotate, so as to realize the connection between the first friction plate 51 and the output shaft 41. In this embodiment, the limit of the first limit bayonet 512 is a polygon, and the cross-sectional shape of the first limit fixture block 413 is a corresponding polygon entity, in other embodiments, the first limit bayonet 512 may be notches of various shapes, and the first limit fixture block 413 may be a protrusion of a corresponding shape, and the protrusion may be matched with the notch, so as to achieve the limit effect.
Referring to fig. 4 and 5, a second through hole 521 is formed in the middle of the second friction plate 52, the connecting section 412 can be inserted into the second through hole 521, the opening of the second through hole 521 is not smaller than the solid part of the connecting section 412, and preferably, the opening of the second through hole 521 is larger than the solid part of the connecting section 412, so that when the connecting section 412 rotates under the driving of the first friction plate 51, the second friction plate 52 does not interfere with the connecting section 412, and the connecting section 412 can rotate freely in the second through hole 521. Accordingly, the aperture profile of the second through hole 521 is larger than the maximum profile of the aperture of the first limiting bayonet 512, so that the connecting section 412 only achieves a limiting relation with the first through hole 511, but not with the second through hole 521.
Referring to fig. 6, in order to realize the separate connection between the second friction plate 52 and the end transmission member 31, a transmission tooth 311 is disposed on the outer side of the end transmission member 31, an accommodating cavity 312 is disposed on the inner side of the end transmission member 31, the transmission tooth 311 is indirectly connected with the driving member 21, and the friction plate group 53 is disposed in the accommodating cavity 312. The friction plate set 53 formed by the first friction plate 51 and the second friction plate 52 is hidden in the accommodating cavity 312 of the end transmission member 31, so that the space can be greatly saved under the condition of effectively driving the output shaft 41, and the toilet seat cover can adapt to narrow spaces such as a toilet seat cover. The accommodating cavity 312 has the functions of accommodating the friction plate group 53 and connecting with the second friction plate 52, specifically, the inner side wall of the accommodating cavity 312 is provided with a second limiting bayonet 313, the outer edge of the second friction plate 52 is provided with a second limiting fixture block 522, the shape of the second limiting fixture block 522 is matched with that of the second limiting bayonet 313, and the second limiting fixture block 522 can be inserted into the second limiting bayonet 313, so that the second friction plate 52 and the end transmission member 31 form limiting connection. When the driving element 21 drives the end transmission element 31 to rotate through the driving teeth 311, through the limiting effect of the second limiting bayonet 313 and the second limiting clamping block 522, the second friction plate 52 can rotate along with the end transmission element 31, so that the connection of the second friction plate 52 to the end transmission element 31 is realized, and in order to realize the independent connection, the outer edge profile of the first friction plate 51 is not greater than the inner wall profile of the accommodating cavity 312, so that the end transmission element 31 does not act on the first friction plate 51 when rotating, and the first friction plate 51 can freely rotate in the accommodating cavity 312, so that the independent connection of the end transmission element 31 to the second friction plate 52 is realized.
Under the combined action of the output shaft 41 and the first friction plate 51 being connected separately and the end transmission member 31 and the second friction plate 52 being connected separately, the end transmission member 31 can drive the second friction plate 52 to rotate separately when rotating, and under the action of static friction, the first friction plate 51 can rotate along with the second friction plate 52, and then the output shaft 41 can rotate along with the first friction plate 51, in this process, the rotation of the second friction plate 52 does not directly affect the rotation of the output shaft 41, and the rotation of the end transmission member 31 does not directly affect the rotation of the first friction plate 51, so as to achieve the effects of separate connection, no influence and separate control. In addition, the first friction plate 51 and the second friction plate 52 are both disposed in the accommodating cavity 312, so that the space occupied by the protection unit 5 can be saved to the greatest extent, and the structural characteristics and the transmission characteristics that the output shaft 41 needs to be inserted into the end transmission member 31 for rotation are realized through the effects of independent connection, no mutual influence and respective control.
In order to adjust the squeezing degree between the first friction plate 51 and the second friction plate 52 and further adjust the static friction force between the first friction plate 51 and the second friction plate 52, the protection unit 5 further includes a locking member 54 and at least 1 elastic member 55, the locking member 54 is sleeved outside the connecting section 412, the locking member 54 can support one side of the friction plate set 53 far away from the output section 411, the elastic member 55 is sleeved outside the connecting section 412, the elastic member 55 can support one side of the friction plate set 53 near the output section 411, and the locking member 54 and the elastic member 55 can squeeze the first friction plate 51 and the second friction plate 52 mutually. The static friction force between the first friction plate 51 and the second friction plate 52 can be adjusted by utilizing the change of the locking degree of the locking member 54, the change of the number of the elastic members 55 or the number of the first friction plate 51 and the second friction plate 52, and the adjusting means is more, so that the device can flexibly adapt to more occasions. The locking member 54 is preferably a locking nut, and may be an elastic clip, an elastic sleeve, or the like having a fixing property, and the elastic member 55 is preferably an elastic washer, and may be an elastic member such as a spring, a damping block, or the like.
In order to ensure the normal use of the toilet lid, the protection unit 5 further includes an angle sensor 56, the angle sensor 56 is connected to the output shaft 41, the angle sensor 56 can record the inclination angle of the toilet lid and is used to control the output of the driving member 21, when the toilet lid encounters a power or resistance force with a large torque, the toilet lid is opened to a larger angle or is blocked, and at this time, the angle sensor 56 can record the current irregular operation and correct the angle, so as to ensure that the final opened angle of the toilet lid is a preset angle without redundant overturning.
In the whole toilet lid gear box system, the transmission unit 3 further includes a head end transmission member 32 and a plurality of intermediate transmission members 33 connected to each other, the head end transmission member 32 is connected to the driving member 21, the head end transmission member 32 can form a transmission connection with the end transmission member 31 through the intermediate transmission member 33, the head end transmission member 32, the intermediate transmission member 33 and the end transmission member 31 are preferably transmission parts having a gear structure in this embodiment, the edges of the head end transmission member 32, the intermediate transmission member 33 and the end transmission member 31 are all provided with gears, and the gears of the head end transmission member 32, the intermediate transmission member 33 and the end transmission member 31 are engaged with each other, so as to realize gear transmission. Drive unit 2 still includes gear lever 22, gear lever 22 with the expansion end of driving piece 21 is connected, gear lever 22's outer wall is equipped with the helical gear, in this embodiment, the vertical setting of driving piece 21, the vertical setting of gear lever 22, the outer wall of head end transmission part 32 is equipped with the helical gear, gear lever 22 with head end transmission part 32 intermeshing, driving piece 21 passes through gear lever 22 drives head end transmission part 32, head end transmission part 32 passes through gear engagement with this drive intermediate transmission part 33 and terminal transmission part 31, and by protection unit 5 with output shaft 41 exports toilet lid with power.
The embodiment of the invention also discloses a closestool (not shown in the figures) which comprises a closestool cover gear box as described above, wherein the closestool is preferably an intelligent closestool, a driving unit 2, a transmission unit 3, an output unit 4 and a protection unit 5 are arranged in the gear box of the closestool, the protection unit 5 is used for protecting the closestool cover and the driving unit 2, the transmission unit 3 comprises an end transmission piece 31, the output unit 4 comprises an output shaft 41, the protection unit 5 comprises a plurality of first friction pieces 51 and second friction pieces 52 which are mutually extruded and can mutually rotate, the first friction pieces 51 are separately connected with the output shaft 41, the second friction pieces 52 are separately connected with the end transmission piece 31, when the closestool is normally turned over, the friction force exists between the mutually extruded friction pieces in the protection unit 5, and when the friction force is large enough, the end transmission member 31 can be in transmission connection with the output shaft 41, so that the toilet lid can be turned over; once the toilet lid encounters a larger torque from the outside to form a power or resistance to the turning of the toilet lid, when the power or resistance is greater than the friction between the friction plates, the friction plates of the protection unit 5 slip, so that the transmission connection between the output shaft 41 and the end transmission member 31 is timely disconnected, and at this time, the driving member 21 can continue to rotate normally to avoid damaging the driving motor, and the output shaft 41 can be stationary relative to the toilet lid, thereby protecting the toilet lid.
In addition, the number of the first friction plates 51 and the second friction plates 52 can be adjusted adaptively, and the protection unit 5 further comprises an adjustable locking member 54 and an elastic member 55, so that the total friction force can be reduced or increased, the flexible adjustment can be realized, and the wide applicability is realized. Further, since the friction plate group 53 formed by the first friction plate 51 and the second friction plate 52 is housed in the end transmission member 31, the output shaft 41 can be driven efficiently, and a space can be saved greatly, which can be adapted to a narrow space such as a toilet lid.
The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.
Claims (15)
1. A toilet lid gear box can drive a toilet lid to turn over, and is characterized by comprising a shell, a driving unit, a transmission unit, an output unit and a protection unit, wherein the driving unit comprises a driving piece, the output unit comprises an output shaft, the driving piece is connected with the output shaft through the transmission unit and the protection unit, and the output shaft is connected with an external toilet lid;
the transmission unit comprises a tail end transmission part, the protection unit is provided with a plurality of friction plates which are mutually extruded and can rotate, one side of the protection unit is connected with the tail end transmission part, the other side of the protection unit is connected with the output shaft, the tail end transmission part can be in transmission connection with the output shaft through the friction plates which are mutually extruded, and the friction plates can slip to disconnect the transmission connection between the output shaft and the tail end transmission part.
2. The toilet lid gear box according to claim 1, wherein the protection unit comprises a plurality of first friction plates and a plurality of second friction plates, each of the first friction plates and the second friction plates are stacked at intervals to form a friction plate group, the plurality of first friction plates can be simultaneously in limit connection with the output shaft, and the plurality of second friction plates can be simultaneously in limit connection with the end driving member.
3. The toilet lid gear box according to claim 2, wherein the output shaft has an output section at one end thereof and a connection section at the other end thereof, the output section being connected to an external toilet lid, the connection section being capable of passing through the middle portions of the first friction plate and the second friction plate simultaneously.
4. The toilet lid gearbox of claim 3, wherein the output shaft further comprises a first limiting fixture block, the first limiting fixture block is disposed on the connecting section, a first through hole is disposed in the middle of the first friction plate, the connecting section can be inserted into the first through hole, a first limiting bayonet is disposed inside the first through hole, and the shape of the first limiting fixture block is adapted to the shape of the first limiting bayonet, so that the first friction plate forms a limiting connection with the output shaft.
5. The toilet lid gear box as claimed in claim 3, wherein the second friction plate has a second through hole formed in a middle portion thereof, and an inner wall profile of the second through hole is not smaller than a solid portion of the connecting section, and the connecting section is inserted into the second through hole to be freely rotated.
6. The toilet lid gearbox as claimed in claim 2, wherein the end driving member has a driving tooth on the outside and a receiving cavity on the inside, the driving tooth is indirectly connected to the driving member, and the friction plate set is disposed in the receiving cavity.
7. The toilet lid gearbox as claimed in claim 6, wherein the inner side wall of the accommodating cavity is provided with a second limit bayonet, the outer edge of the second friction plate is provided with a second limit block, the shape of the second limit block is matched with the shape of the second limit bayonet, and the second limit block can be inserted into the second limit bayonet so as to enable the second friction plate to form a limit connection with the end driving member.
8. The toilet lid gear box as claimed in claim 6, wherein the outer edge profile of the first friction plate is not larger than the inner wall profile of the accommodating chamber, and the first friction plate is freely rotatable in the accommodating chamber.
9. The toilet lid gearbox as claimed in claim 3, wherein the protection unit further comprises a locking member and at least 1 elastic member, the locking member is sleeved outside the connection section, the locking member can abut against one side of the friction plate set away from the output section, the elastic member is sleeved outside the connection section, the elastic member can abut against one side of the friction plate set close to the output section, and the locking member and the elastic member can press the first friction plate and the second friction plate against each other.
10. The toilet lid gearbox of claim 1, wherein the protection unit further comprises an angle sensor connected to the output shaft.
11. The toilet lid gearbox of claim 1, wherein the transmission unit further comprises a head end transmission member and an intermediate transmission member, the head end transmission member being connected to the driving member, the head end transmission member being capable of forming a transmission connection with the end transmission member via the intermediate transmission member.
12. The toilet lid gearbox of claim 11, wherein the edges of the head end drive member, the intermediate drive member, and the end drive member are provided with gears, the gears of the head end drive member, the intermediate drive member, and the end drive member being intermeshed.
13. The toilet cover gear box according to claim 11, wherein the driving unit further comprises a gear rod connected to the movable end of the driving member, the gear rod is provided with a bevel gear on its outer wall, the gear rod is vertically disposed, the head end driving member is provided with a bevel gear on its outer wall, and the gear rod and the head end driving member are engaged with each other.
14. The toilet lid gear box according to claim 1, wherein the housing includes a front housing, a middle housing, and a rear housing, the transmission unit and the output unit are disposed in the middle housing, the output shaft can pass through the rear housing and protrude outward, and the front housing is fixed to an opposite side of the middle housing from the rear housing.
15. A toilet bowl, comprising a toilet lid gear box according to any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621708.5A CN114451798A (en) | 2021-12-28 | 2021-12-28 | Toilet lid gear box and toilet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621708.5A CN114451798A (en) | 2021-12-28 | 2021-12-28 | Toilet lid gear box and toilet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114451798A true CN114451798A (en) | 2022-05-10 |
Family
ID=81407378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111621708.5A Pending CN114451798A (en) | 2021-12-28 | 2021-12-28 | Toilet lid gear box and toilet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114451798A (en) |
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| CN204971075U (en) * | 2015-06-29 | 2016-01-20 | 广州市三新机电有限责任公司 | Automatic flip device of modified closestool and assembly device's closestool |
| US20170335895A1 (en) * | 2015-02-16 | 2017-11-23 | Minebea Mitsumi Inc. | Torque limiter and drive device |
| CN108779840A (en) * | 2017-08-28 | 2018-11-09 | 美蓓亚三美株式会社 | Driving device |
| CN110678663A (en) * | 2017-05-22 | 2020-01-10 | 美蓓亚三美株式会社 | Torque limiter and drive device |
| CN214678771U (en) * | 2021-02-01 | 2021-11-12 | 佛山华永科技有限公司 | Gear transmission structure with overload protection function and toilet lid driving device |
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2021
- 2021-12-28 CN CN202111621708.5A patent/CN114451798A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170335895A1 (en) * | 2015-02-16 | 2017-11-23 | Minebea Mitsumi Inc. | Torque limiter and drive device |
| CN204971075U (en) * | 2015-06-29 | 2016-01-20 | 广州市三新机电有限责任公司 | Automatic flip device of modified closestool and assembly device's closestool |
| CN110678663A (en) * | 2017-05-22 | 2020-01-10 | 美蓓亚三美株式会社 | Torque limiter and drive device |
| CN108779840A (en) * | 2017-08-28 | 2018-11-09 | 美蓓亚三美株式会社 | Driving device |
| CN214678771U (en) * | 2021-02-01 | 2021-11-12 | 佛山华永科技有限公司 | Gear transmission structure with overload protection function and toilet lid driving device |
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Application publication date: 20220510 |