CN114075892B

CN114075892B - Self-sterilizing door handle

Info

Publication number: CN114075892B
Application number: CN202010826933.1A
Authority: CN
Inventors: 马跃; 陈润玺; 王汉涛; 车文彬
Original assignee: BEIJING ZICHENXUAN PHARMACEUTI
Current assignee: Beijing Angran Technology Development Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2023-06-16
Anticipated expiration: 2040-08-17
Also published as: CN114075892A

Abstract

The invention provides a self-sterilizing door handle, which comprises a shell and at least one handle extending from the inside of the shell, wherein a first side plate of the shell, from which the handle extends, is provided with a channel; the self-sterilizing door handle also comprises a handle overturning device and a sterilizing device which are arranged in the shell; the handle overturning device is used for overturning the handle to the inside of the shell through the channel before the handle needs to be disinfected, and overturning the handle to the outside of the shell through the channel after the disinfection is completed; the sterilizing device is used for sterilizing the handle. The self-sterilizing door handle provided by the embodiment of the invention can automatically sterilize the handle, so that the risk of cross infection is reduced.

Description

Self-sterilizing door handle

Technical Field

The invention relates to the field of sanitary appliances, in particular to a self-sterilizing door handle.

Background

In public places such as hospitals, restaurants, markets, supermarkets, office buildings, public toilets and the like, the public places are high in flow of people, access doors are required to be arranged in the places, a handle is used as a door opening and closing component, people can frequently contact with the handle (also called a handle, a handle and the like) in various scenes every day, and a large amount of pathogens such as bacteria and viruses can be infected on the handle, so that cross infection is caused.

In particular, in the infectious department of hospitals or in infectious hospitals, it is possible for medical staff, patients or patient families to contact the door handle, and in many infectious ways, the door handle is a "disaster area" which forms a potential source of infection. At present, a washing-free hand sanitizer or a disposable tissue is arranged at a gate of a specific hospital, not all people entering and exiting can enter and exit the hand sanitizer or use the disposable tissue each time, and still high cross infection risks exist. Even if special sanitary personnel are configured for scrubbing and disinfecting, the effect is poor, the disinfection can not be performed in time after each use, the interval time is long, and time and labor are wasted. There is no related product available to solve the above problems.

Disclosure of Invention

In view of this, embodiments of the present invention provide a self-sanitizing door handle that obviates or mitigates one or more of the disadvantages of the prior art.

The technical scheme of the invention is as follows:

a self-sanitizing door handle comprising a housing and at least one handle extending from within said housing, said housing having a channel on a first side panel from which said handle extends; the self-sterilizing door handle also comprises a handle overturning device and a sterilizing device which are arranged in the shell; the handle overturning device is used for overturning the handle to the inside of the shell through the channel before the handle needs to be disinfected, and overturning the handle to the outside of the shell through the channel after the disinfection is completed; the sterilizing device is used for sterilizing the handle.

In some embodiments, the disinfecting device is a combination of one or more of a disinfecting wet wipe device, an ultraviolet device, and a spray disinfecting device.

In some embodiments, the disinfecting device is a disinfecting wet wipe device comprising: the sterilizing wet tissue box comprises a box body, a driving shaft and a driven shaft; the driving shaft and the driven shaft vertically penetrate through the box body, wherein the driven shaft is used for accommodating unused disinfection wet tissues, and the driving shaft is used for recycling the used disinfection wet tissues; the two sides of the disinfection wet tissue box are provided with rectangular notches for the handle to contact with the disinfection wet tissue inside.

In some embodiments, the disinfectant wet wipe apparatus further includes a disinfectant wet wipe driving mechanism disposed outside the cartridge body and configured to drive the drive shaft to rotate.

In some embodiments, the disinfecting wet towel box is further provided with an arc-shaped support at the inner side of the rectangular notch, and an arc-shaped part of the arc-shaped support is used for providing support for the disinfecting wet towel; and a soft cushion is arranged at the arc-shaped part of the arc-shaped support.

In some embodiments, the disinfectant wet wipe apparatus further includes a disinfectant wet wipe cartridge movement drive mechanism for driving the disinfectant wet wipe to move along a length of the housing such that the handle can be flipped to a disinfectant position within the housing after the disinfectant wet wipe cartridge is flashed open.

In some embodiments, the sterilized wet towel apparatus further comprises a bracket for mounting the sterilized wet towel box, the bracket comprising an upper tray, a lower tray, and a side tray; wherein, form the holding chamber that is used for holding disinfection wet tissue box between upper bracket board, the bottom plate, the side layer board is located between upper bracket board and the bottom plate and connects the two.

In some embodiments, the disinfecting wet wipe device further comprises a rail-slider mechanism comprising a rail and a slider, wherein one of the rail or the slider is fixedly connected to the housing and the other is fixedly connected to the side fascia.

In some embodiments, two groups of driving shafts and driven shafts are arranged in the disinfection wet tissue box and are respectively used for placing two disinfection wet tissues so as to respectively disinfect the two handles.

In some embodiments, at least one guide shaft is also disposed within the disinfectant wet wipe cartridge adjacent to both sides of the arcuate support for guiding the disinfectant wet wipe.

In some embodiments, the disinfectant wet wipe driving mechanism includes a motor fixedly disposed on the upper tray, an intermediate gear, and two drive shaft gears; the output shaft of the motor drives the intermediate gear, and the two driving shaft gears are coaxially arranged with the two driving shafts and are meshed with the intermediate gear; and each driving shaft gear is internally provided with a one-way bearing, the limiting directions of the two one-way bearings are opposite, the one-way bearings are connected with one end of the driving shaft through a transmission shaft, and the transmission shaft and the driving shaft keep synchronous rotation.

In some embodiments, the driving shaft extends out of the box body and is provided with a flat shaft end, the end part of the driving shaft is provided with a clamping groove, and the flat shaft end of the driving shaft is inserted into the clamping groove; the upper supporting plate is provided with a driving shaft limiting groove for the flat shaft end of the driving shaft to translate and enter in a preset direction.

In some embodiments, the sterilizing wet tissue box moving driving mechanism comprises a motor fixedly arranged on the upper supporting plate and a gear rack mechanism, wherein the gear rack mechanism comprises a gear fixedly connected with an output shaft of the motor and a rack fixedly connected with the shell.

In some embodiments, at least one of the guide shafts has a roughened outer surface, and an angular displacement sensor is also provided at one end of the guide shaft to detect the length of use of the sterilized wet wipe.

In some embodiments, a movable or fixed protective cover is arranged at the upper part of the shell corresponding to two sides of the two handles so as to cover the box body of the disinfection wet tissue box.

In some embodiments, a movable protective cover is arranged on one side of the upper parts of the left side and the right side of the shell, and a fixed protective cover is arranged on the other side of the upper part of the left side and the right side of the shell so as to cover the box body of the disinfection wet tissue box.

In some embodiments, a switch door is provided on one side of the protective cover for replacing the disinfectant wet wipe cartridge.

The self-sterilizing door handle provided by the embodiment of the invention can automatically sterilize the handle, so that the risk of cross infection is reduced.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the above-described specific ones, and that the above and other objects that can be achieved with the present invention will be more clearly understood from the following detailed description.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate and together with the description serve to explain the invention. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention. Corresponding parts in the drawings may be exaggerated, i.e. made larger relative to other parts in an exemplary device actually manufactured according to the present invention, for convenience in showing and describing some parts of the present invention. In the drawings:

Fig. 1 is a schematic perspective view of a self-sterilizing door handle and a door leaf mounted thereon according to an embodiment of the present invention.

Fig. 2 is a schematic plan view of a self-sterilizing door handle and a door leaf mounted thereon according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of a self-sterilizing door handle according to an embodiment of the present invention.

Fig. 4 is a schematic perspective view of a self-sterilizing door handle according to an embodiment of the present invention after hiding the first side plate.

Fig. 5 is a schematic perspective view of a handle turning mechanism, an unlocking mechanism and a handle rotation driving mechanism according to an embodiment of the present invention.

Fig. 6 is a schematic perspective view of a turnover shaft of a handle turnover driving mechanism according to an embodiment of the invention.

Fig. 7 is a schematic perspective view of a driven gear of a handle overturning driving mechanism according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of a dynamic connection between a turning shaft and a driven gear of a handle turning driving mechanism according to an embodiment of the present invention, wherein the turning shaft and the pin hole are perspective drawing to show a dynamic matching relationship between the pin hole and the arc-shaped groove, and the broken line represents invisible line.

Fig. 9 is a schematic plan view of a handle overturning driving mechanism and an unlocking mechanism according to an embodiment of the invention.

Fig. 10 is a schematic view of section B-B of fig. 9, i.e., a sectional view along the axial direction of the roll-over shaft.

Fig. 11 is a schematic view of section A-A of fig. 9, i.e., a sectional view along the handle axis.

Fig. 12 is a schematic perspective view of a supporting seat according to an embodiment of the invention.

FIG. 13 is a schematic view showing the dynamic cooperation of the support base, the handle rotating drive shaft and the handle inner shaft according to an embodiment of the present invention.

Wherein, the supporting seat and the handle rotary driving shaft adopt perspective drawing to show the dynamic matching relation of the pin hole and the arc groove.

Fig. 14 is a schematic perspective view of a sterilizing apparatus, a bracket and a handle door according to a first embodiment of the present invention.

Fig. 15 is a schematic perspective view of a bracket according to a first embodiment of the present invention.

Fig. 16 is a schematic perspective view of a positioning pin according to a first embodiment of the present invention, and broken lines indicate invisible lines.

Fig. 17 is a schematic plan view of a linkage mechanism of a handle door and a bracket according to a first embodiment of the present invention, in which the handle door, the hanging block and the bracket are perspective-drawn to show an assembly relationship, and broken lines represent invisible lines.

Fig. 18 is a schematic cross-sectional view of a self-sterilizing door handle according to an embodiment of the present invention.

Fig. 19 is a schematic perspective view of a positioning guide block according to a first embodiment of the present invention.

Fig. 20 is a schematic perspective view of a sterilizing wet tissue box according to a first embodiment of the present invention.

Fig. 21 is a schematic perspective view showing the assembly of the positioning guide block and the sterilizing wet tissue box according to the first embodiment of the present invention.

Fig. 22 is a schematic cross-sectional view of a sterilizing wet wipe cartridge according to a first embodiment of the present invention from a top view.

Fig. 23 is a schematic perspective view showing an assembly of a sterilizing wet tissue box and a sterilizing wet tissue driving mechanism according to the first embodiment of the present invention.

Fig. 24 is a schematic cross-sectional view of a top view of a disinfectant wet wipe box and a handle according to a first embodiment of the present invention, so as to show a correspondence between the handle and the disinfectant wet wipe box in a projection direction.

Fig. 25 is a schematic cross-sectional view of a top view of a disinfectant wet wipe box and a handle according to a first embodiment of the present invention, so as to show a corresponding relationship between a disinfecting position of the handle and a projection direction of the disinfectant wet wipe box.

Fig. 26 is a schematic perspective view of a self-sterilizing door handle according to a second embodiment of the present invention.

Fig. 27 is a schematic view of a structure of a second embodiment of the present invention after hiding a first side plate of a housing of a self-sterilizing door handle.

Fig. 28 is a schematic view of the structure of the case after moving.

Fig. 29 is a schematic structural view of a movement driving mechanism of the sterilizing wet tissue box above the box body of the self-sterilizing door handle according to the second embodiment of the present invention.

Fig. 30 is a schematic structural view of a rail slider mechanism of a self-sterilizing door handle according to a second embodiment of the present invention.

Fig. 31 is a schematic structural view of a movable sterilizing wet tissue box according to a second embodiment of the present invention.

Fig. 32 is a schematic structural view of a disinfectant wet tissue box according to a second embodiment of the present invention.

Fig. 33 is a schematic partial cross-sectional view of a drive mechanism for a sterile wet wipe according to a second embodiment of the present invention.

Fig. 34 is a schematic structural view of a self-sterilizing door handle according to a second embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent. The exemplary embodiments of the present invention and the descriptions thereof are used herein to explain the present invention, but are not intended to limit the invention.

It should be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and/or processing steps closely related to the solution according to the present invention are shown in the drawings, while other details not greatly related to the present invention are omitted.

It should be emphasized that the term "comprises/comprising" when used herein is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.

It is also noted herein that the term "coupled" may refer to not only a direct connection, but also an indirect connection in which an intermediate is present, unless otherwise specified.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

The present invention provides a self-sanitizing door handle, as shown in fig. 1, comprising a housing 2 and at least one handle 1 extending from within the housing 2.

The self-sterilizing door handle can be provided with opening and closing devices on various doors, such as various door handles, and can also have fastening or locking functions, such as various handle locks, and the movable door leaf can be firmly locked on the fixed frame through the cooperation of the handle and other accessories so as to realize the purpose of fixing the position. In addition, the self-sterilizing door handle provided by the embodiment of the invention is not only suitable for door leaves, but also suitable for structures such as window sashes and furniture. The self-sterilizing door handle can be connected with a door lock, and can adopt a bent handle, a spherical handle and the like. The self-sterilizing door handle can be sterilized by adopting various handles in the technology according to the self-sterilizing mechanism and the working principle of the self-sterilizing door handle, so that cross infection is avoided.

According to the use requirement, as shown in fig. 1 and 2, the self-sterilizing door handle of the embodiment of the invention can be provided with the handle 1 on one side or two sides of the door leaf 9, and the sterilizing processes of the two handles are respectively and independently carried out without interference under the condition that the handles are arranged on the two sides.

In some embodiments, as shown in fig. 3, the first side plate 21 of the housing 2, from which the handle 1 extends, has a channel 211 for the handle 1 to flip in and out. The handle 1 is in a state of extending out of the housing 2 in a normal door opening state, and needs to enter the housing 2 to complete sterilization in a sterilization state.

The self-sterilizing door handle further comprises a handle turning device and a sterilizing device which are arranged in the shell 2. The shell 2 of the embodiment of the invention is mainly used for packaging an internal handle overturning device and a sterilizing device, and can also be used for packaging a lock cylinder for locking and the like.

The handle turning device of the embodiment of the invention is used for turning the handle 1 into the inside of the shell 2 through the channel 211 before the handle 1 needs to be disinfected, and turning the handle 1 out of the shell 2 through the channel 211 after the disinfection is completed so as to facilitate the next door opening action.

In some embodiments, as shown in fig. 4 and 5, the handle flipping device may include a support base 44, a flipping shaft 45, a handle flipping driving mechanism, and the like. The supporting seat 44 is fixed in the housing, and a concave portion 441 is formed at an upper portion of the supporting seat 44 and is concave inward to form a cavity. The handle overturning driving mechanism is used for driving the overturning shaft 45 to rotate on the supporting seat 44, so as to drive the handle to overturn.

The turnover shaft 45 is sleeved at one end of the handle 1 located in the shell, and the turnover shaft 45 is installed on the concave portion 441 of the supporting seat 44. One end of the turning shaft 45 can be used as a joint for turning the handle 1, and the turning shaft 45 can be driven by the handle turning driving mechanism to perform reciprocating rotary motion at the concave part 441 of the supporting seat 44 so as to drive the handle 1 to turn. For example, the handle 1 is positioned at the initial position seen from the horizontal state outside the housing, and can be pressed down by a user to complete the unlocking action of the door leaf when in the initial position, and the handle 1 is turned to the vertical state inside the housing by the turning shaft 45, so that the handle is positioned at the sterilizable position.

As shown in fig. 5 and 6, the turning shaft 45 is mainly used for converting the pushing action of the handle into the unlocking action of the unlocking mechanism, the turning shaft 45 is also used for turning over and returning the handle of the handle turning device, and the turning shaft 45 also has a function of providing support for the rotating motion of the handle (rotating handle). The turnover shaft 45 is of a roughly shaped stepped shaft structure, the turnover shaft 45 comprises a first shaft section 451 and a second shaft section 452, the first shaft section 451 is arranged at the concave part 441 of the supporting seat 44, and the diameter is large; the shaft end of the second shaft section 452 is adapted to be coupled to an unlocking mechanism, for example, by providing the shaft end of the second shaft section 452 as a flat shaft end 4521. In addition, a stepped hole 4512 perpendicular to the second shaft section 452 is provided in the middle of the first shaft section 451 to mount a handle. The first shaft section 451 is further provided with a pin hole 4513 on the shoulder facing the second shaft section 452.

The handle overturning driving mechanism of the embodiment of the invention can adopt various power and transmission structures. For example, the handle flip drive mechanism includes a first motor 41, a driving gear 42, and a driven gear 43, wherein the driving gear 42 may be mounted on an output shaft of the first motor 41, the driven gear 43 may be mounted on a second shaft section 452 of the flip shaft 45, or the driven gear 43 may be mounted on a sleeve 46 that is sleeved on the second shaft section 452 of the flip shaft 45. The driven gear 43 and the sleeve 46 form a revolute pair allowing relative rotation about a common axis.

In the above embodiment, in order to prevent the driven gear 43 from rotating when the handle 1 is pushed down to open the door, the driven gear 43 and the turning shaft 45 may be connected in a movable coupling manner. Taking a pin connection as an example, for example, as shown in fig. 6 and 7, a side of the driven gear 43 facing the turning shaft is provided with an arc groove 431, and the position of the arc groove 431 corresponds to the position of a pin hole 4513 of the turning shaft, alternatively, the width of the arc groove 431 is the same as the diameter of the pin hole 4513 of the turning shaft 45, and the arc groove 431 is connected with the pin hole 4513 through a pin shaft.

The arc groove 431 in the embodiment of the present invention has a certain arc length, the arc length can correspond to the magnitude of the pressing down of the handle (rotating along the axis of the turning shaft 45), fig. 8 shows the dynamic connection relationship between the arc groove 431 and the pin hole 4513 through the pin shaft, the pin hole 4513 of the turning shaft 45 is connected through the pin shaft, and when the pin hole 4513 is located at the left end position of the arc groove 431, the driven gear 43 can drive the turning shaft 45 to turn upwards in the state that the driven gear 43 rotates anticlockwise. The pin hole 4513 of the turnover shaft 45 is connected by a pin, and when the pin hole 4513 is positioned at the right end of the arc groove 431, the driven gear 43 can drive the turnover shaft 45 to turn down to the initial position in a state that the driven gear 43 rotates clockwise. The home position described herein may refer to the handle being in a horizontal state, and the sterilization position after the handle is turned over may be in a vertical state. The pin hole 4513 of the turnover shaft 45 is connected by a pin, and when the turnover shaft is positioned at the left end of the arc groove 431, the handle is pressed down, and the driven gear 43 cannot rotate along with the arc groove 431 due to a certain length.

The unlocking mechanism of the embodiment of the present invention may use various linkage structures, for example, as shown in fig. 5 and 9, the unlocking mechanism may be mounted on a key cylinder bracket 47, including a shift fork disc 48 and a lock bolt shaft 49.

As shown in fig. 6, the end of the second shaft section 452 of the invert shaft 45 remote from the first shaft section 451 is a flat shaft end 4521, which may also be a D-shaped shaft end, i.e., having at least one anti-rotation platform. The middle part of the fork disk 48 is correspondingly provided with a hole having the same shape as the flat shaft end 4521 so as to maintain synchronous rotation with the tilting shaft 45. As shown in fig. 10 and, the fork disk 48 may be axially fixed by shaft end retainers or end caps 401, screws 402.

Fig. 5 is a schematic perspective view of the unlocking mechanism, the handle overturning driving mechanism, the handle rotating driving mechanism, the handle and other related components according to an embodiment of the present invention. FIG. 9 is a top plan view of an unlocking mechanism and handle according to an embodiment of the present invention; FIG. 10 is a cross-sectional view of the B-B side of FIG. 9 to show the shafting structure of the flipping shaft; FIG. 11 is a cross-sectional view taken along the A-A plane of FIG. 9 to illustrate the shafting structure of the handle.

The lock core support 47 is a substantially symmetrical rectangular support, wall plates on both sides are used for the turning shaft 45 to pass through, and a wall plate in the middle is used for installing the lock tongue shaft 49. The inner side of the shift fork disc 48 is provided with a first shift fork 481 protruding, one end of the lock tongue shaft 49 positioned in the lock cylinder bracket 47 is provided with a second shift fork 491, and the other end of the lock tongue shaft 49 is provided with a lock tongue 492. In the embodiment of the present invention, as shown in fig. 10 and 5, the shift fork disc 48 and the turning shaft 45 keep rotating synchronously, when the turning shaft 45 is pressed by the handle to drive rotation, the first shift fork 481 of the shift fork disc 48 moves towards the second shift fork 491, and drives the whole lock tongue shaft 49 to move towards the direction in the lock core bracket 47, the lock tongue 492 retracts into the door leaf, namely, the door opening action can be completed by unlocking, and the lock tongue 492 can return under the action of a return spring arranged on the lock tongue shaft 49, namely, the door leaf is locked.

In this embodiment, the shift fork plate 48 and the protruding first shift fork 481 move toward the second shift fork 491 to effect unlocking. The handle turning device drives the turning shaft 45 to rotate so that the handle turns up, and at the moment, the shifting fork disc 48 rotates in the opposite direction, so that unlocking action cannot be caused. Even if the handle is returned to the original position after being sterilized, the unlocking action is not caused due to the limitation of the rotation angle.

According to the handle turning device provided by the embodiment of the invention, the handle can be turned back into the shell conveniently so as to carry out a subsequent disinfection process, and the handle turning device and the unlocking mechanism of the structure are not mutually influenced, so that the locking and door opening functions of a normal handle lock can be maintained, and the handle can be turned to a target position.

In some embodiments, in order to perform omnibearing and dead-angle-free sterilization on the handle, a part of the handle, which is contacted with a human hand, can be arranged into a rotatable structure. For example, as shown in fig. 11, the handle 1 may include a rotary knob 11, a handle inner shaft 12, a sleeve shaft 13, and the like. Wherein the rotary knob 11 is adapted to be arranged outside the housing such that the setting action is triggered by depression (the setting action described herein may include an unlocking action of an unlocking mechanism, an automatic operation signal of a self-sterilizing door handle, etc.), the interior of the rotary knob 11 is hollow. The rotary handle 11 of the present embodiment is a main contact member for opening the door, i.e., a member requiring sterilization. In this embodiment, the inner handle shaft 12 may be inserted through the sleeve shaft 13 inside the rotary handle, one end of the inner handle shaft 12 is fixed on the outward side of the rotary handle 11 through a set screw 15 and a spacer, the other end of the inner handle shaft 12 is sleeved at the stepped hole 4512 of the turning shaft 45, and the sleeve shaft 13 is mainly used for sleeving on the outer peripheral surface of the inner handle shaft 12 and for supporting, sealing and protecting the inner handle shaft 12. One end of the quill 13 may rest against a platform 4514 of the first shaft section of the quill 45 to effect axial securement, and the quill 13 may also be supported and friction reduced by one or more bearings between its outer periphery and the inner wall of the rotary handle 11, inserted into the cavity of the rotary handle 11. If a pair of bearings are used for support, the bearings may be spaced apart by a sleeve 14 for axial positioning. In this embodiment, since the handle inner shaft 12 is used as a member for rotating the rotary knob 11, one or more bearings may be provided at the stepped holes 4512 of the handle inner shaft 12 and the tilting shaft 45 for supporting.

In the embodiment of the invention, the self-sterilizing door handle further comprises a handle rotation driving mechanism for driving the handle to rotate after the handle is turned to the sterilizing position in the shell, specifically, driving the rotary handle 11 of the handle to rotate so as to perform more comprehensive sterilization. For example, as shown in fig. 5, the handle rotation driving mechanism may include a second motor 51, a drive bevel gear 52, a driven bevel gear 53, a handle rotation driving shaft 54, and the like.

Wherein the protruding shaft of the second motor 51 is connected to the drive bevel gear 52, and the driven bevel gear 53 is mounted at one end or the bottom end of the handle rotation driving shaft 54, wherein the drive bevel gear 52 and the driven bevel gear 53 are assembled to be engaged. In this embodiment, the drive motor of the handle rotation drive mechanism is perpendicular to the handle rotation drive shaft 54, and thus bevel gear drive is used, and in another embodiment, spur or helical gear drive may be used if the drive motor and the handle rotation drive shaft are parallel. Further, in other embodiments, a chain drive, belt drive, or direct coupling of the drive motor and the handle rotation drive shaft, or a coupling, may be used.

In the embodiment of the present invention, the support base 44 is mainly used for supporting the turning shaft 45 and the handle, and provides support for turning and rotating the handle. As shown in fig. 12 and 13, the support base 44 may have a recess 441 at an upper end, a limiting groove 442 at a circumferential side of the recess 441, and a vertical through hole 443. The recess 441 is mainly used for supporting the turnover shaft 45 to turn over, and the limiting groove 442 is mainly used for clamping the platform end 121 of the handle inner shaft 12. The platform end 121 of the handle inner shaft 12 extends from the other side of the turning shaft 45 and has two parallel planes to be clamped into the limiting groove 442 of the supporting seat, so that the handle inner shaft cannot rotate when rotating around the turning shaft in the limiting groove 442. The through hole 443 is mainly used for inserting the handle rotation driving shaft 54. In addition, the support base 44 may be fixed to the first side plate of the housing by screw holes 444 and screws or bolts.

As shown in fig. 5, in this embodiment, one end (bottom end in fig. 5) of the handle rotation driving shaft 54 is fixedly connected with the driven bevel gear 53, i.e., kept rotating in synchronization. As shown in fig. 13, the handle rotation driving shaft 54 is inserted into the through hole 443 of the supporting seat 44 (the broken line in fig. 13 indicates the invisible line, and each dimensional relationship is only schematic), and the other end of the handle rotation driving shaft 54 is a groove end 541, and the groove of the groove end 541 is the same as the protruding shape of the platform end 121 of the handle inner shaft 12, that is, the platform end 121 of the handle inner shaft 12 can be inserted into the groove end 541 of the handle rotation driving shaft 54, so that the handle rotation driving shaft 54 drives the handle inner shaft 12 to rotate, and further, drives the rotary handle 11 to rotate. Therefore, when the handle needs to be disinfected, the self-disinfection door handle of the embodiment of the invention is turned to a vertical state, the handle inner shaft 12 is connected with the handle rotary driving shaft 54, and the handle rotary driving mechanism can drive the rotary handle 11 of the handle to rotate, so that the disinfection without dead angles in all directions is completed.

The second motor 51 of the embodiment of the present invention may be provided with one or two. In the first embodiment shown in fig. 4, two second motors 51 are provided, corresponding to the two handles on the inner and outer sides, respectively. In the second embodiment shown in fig. 28, there are 1 second dual-axis motors 51A, and motor shafts are disposed on two sides of the motors, wherein one motor shaft is provided with a unidirectional bearing, and the handles on two sides can be driven to rotate by utilizing the rotation of one motor in the forward direction and the reverse direction, and the unidirectional bearings are used to isolate different rotation directions, so that the two handles do not interfere with each other.

In order to keep the sterilization chamber in the housing 2 isolated from the outside, a handle door 31 is further provided on the inner side of the first side plate 21, and in the first embodiment shown in fig. 4, the handle door 31 is located at a position corresponding to the channel 211 and is used to move on the inner side of the first side plate 21 to open and close the channel 211. The first side plate 21 is omitted from fig. 4 to show its internal structure. In one embodiment, the handle door 31 has two handles corresponding to two sides.

In some embodiments, to facilitate opening the handle door 31, the self-sanitizing door handle is also provided with a handle door opening mechanism. In this embodiment, the handle door opening mechanism may be pulled and pulled by a pulling rope, specifically, the handle door opening mechanism may include a third motor, a reel 34, a pulley, a pulling rope, and the like.

As shown in fig. 4, to reduce the use of the motors, the second motor 51 and the third motor may be the same motor (hereinafter may be referred to as a second motor), the second motor 51 may be a dual-shaft motor, and both ends of the second motor have output shafts, which are respectively a first output shaft and a second output shaft, where the first output shaft is used to provide power for the handle rotation driving mechanism, the second output shaft is used to provide power for the handle door opening mechanism, and the reel 34 is mounted on the output shafts.

In the above embodiment, the reel 34 may alternatively be mounted on the output shaft by a one-way bearing. A one-way bearing is a bearing that can rotate freely in one direction and lock up in the other direction. The two output shafts of the second motor 51 generally rotate synchronously, and the working rotation direction of the first output shaft is the first rotation direction so as to drive the rotation handle of the handle to rotate; the working rotation direction of the second output shaft is a second rotation direction opposite to the first rotation direction, so as to drive the handle door 31 to open. The one-way bearing may enable the first output shaft to rotate in an operating state without driving the reel 34 to rotate, thereby avoiding breaking the pulling rope or excessively loosening the pulling rope. The pulling rope can be a steel wire rope or other rigid ropes.

In the above embodiment, the pulley may further include 1 or more pulleys, as shown in fig. 4 and 5, for example, may include a first pulley 33A for guiding the middle of the pulling rope and a second pulley 33B for reversing the pulling rope near the handle door 31 side, and the pulling rope may also pass through the hole in the middle of the first guide block 37 of the handle door. The first pulley 33A may be mounted on the key cylinder bracket 47 by a shaft, and the second pulley 33B may be mounted on the first side plate 21.

As shown in fig. 4, a pull ring 312 is disposed on one side of the handle door 31 facing the inside, one end of a pulling rope of the handle door opening mechanism is tied on the pull ring 312, the other end of the pulling rope is connected to the reel 34, the second motor 51 drives the reel 34 to rotate, and the pulling rope drives the handle door 31 to move inwards, so that the door opening action can be completed.

In the above embodiment, the handle door 31 is opened, and after the handle 1 is turned over into the sterilizing position in the housing, the handle door 31 is also required to be closed to keep airtight. In this embodiment, the closing action of the handle door 31 may be achieved by means of a return spring. For example, the return springs may include a first return spring 35 and a second return spring 36. As shown in fig. 4, the first return spring 35 may be disposed at the top end of the handle door 31 in the form of a tension spring, and the second return spring 36 may be disposed at the middle lower portion of the handle door 31 in the form of a compression spring. One end of the first return spring 35 is connected to the fixed side frame, and the other end is connected to a protruding spring connection terminal 314 at the top end of the handle door 31. The middle position of the handle door 31 on the left side and the right side is also provided with a first guide block 37, and a spring shaft and a second return spring 36 are also arranged between the first guide block 37 and the handle door 31. Wherein the spring shaft is used to prevent the second return spring 36 from being biased. The first guide block 37 may be directly or indirectly fixed to the housing, and the hole of the first guide block 37 for installing the spring shaft is a through hole for the spring shaft to extend into, and the middle part of the first guide block 37 may also be provided with a vertical through hole for the pulling rope to pass through.

The handle door 31 is opened, so that the handle door 31 is in a state of stretching the first return spring 35 and compressing the second return spring 36, and after the handle is overturned, the second motor 51 drives the reel 34 to loosen the traction rope, and the handle door 31 returns to the door closing position under the combined action of the first return spring 35 and the second return spring 36.

The sterilizing device of the embodiment of the invention is used for sterilizing the handle 1. The disinfection method of the embodiment of the invention can adopt thermal disinfection, chemical medicine disinfection, ultraviolet disinfection, ionizing radiation disinfection and the like. The heat sterilization can be wet heat sterilization, pressure steam sterilization and the like, the chemical sterilization can be chlorine sterilization, ethylene oxide, peracetic acid, glutaraldehyde, formaldehyde, ethanol and other sterilization agents, and the use method can be soaking, alcohol spraying, wiping, fumigation and the like. When chemical medicine is adopted for disinfection, clean cloth or other articles are soaked in disinfectant solution, the surfaces of the articles to be disinfected are sequentially and reciprocally wiped, after the disinfectant is acted for a required time, clean water is used for wiping, and residual disinfectant is removed, so that the damage effects of corrosion, bleaching and the like possibly caused are reduced. Ultraviolet sterilization can be performed by ultraviolet lamp. The ionizing radiation sterilization may be performed by using a radiation device.

In the embodiment of the invention, chemical disinfection is taken as an example, the disinfection device of the self-disinfection door handle can adopt disinfection wet tissues or disinfection wet tissues, and further, the disinfection device is a disinfection wet tissue device and comprises a disinfection wet tissue box and a disinfection wet tissue driving mechanism arranged outside the box body. The whole disinfection wet tissue box is in a replaceable box shape so as to be used as a consumable for timely and whole replacement.

In some embodiments, the self-sanitizing door handle may further include a bracket 61 disposed within the housing 2. The bracket 61 is mainly used for accommodating a sterilizing wet tissue box, installing a sterilizing wet tissue driving mechanism and synchronously moving with the sterilizing wet tissue box to avoid or approach the overturning position of the handle, so that the sterilizing wet tissue can be tightly attached to the handle, and the sterilizing effect is ensured. As shown in fig. 24 and 25, the door leaf on which the self-sterilizing door handle is installed is provided with two handles respectively positioned at the inner side and the outer side. In the non-sterilized state, as shown in fig. 24, the portion of the holder 61 and the sterilized wet tissue box that is abutted against the rotary handle 11 of the handle is overlapped with the turning locus of the handle. The bracket 61 and the sterilizing wet tissue box are positioned at the center of the housing in a non-sterilized state, and the lengths of the bracket 61 and the sterilizing wet tissue box are approximately equal to the interval between the two handles. Thus, when sterilization is required, the tray 61 and the sterilizing wet tissue box as a whole are moved in the housing toward a side away from the handle to be sterilized so that the handle to be sterilized can be turned to a sterilization position (vertical state) as shown in fig. 25, so that the sterilization process of the next step is performed.

As shown in fig. 14 and 15, the bracket 61 may include an upper blade 612, a lower blade 613, and a side blade 611. Wherein a receiving chamber for receiving the sterilized wet tissue box is formed between the upper and

lower trays

612 and 613, and the side tray 611 is positioned between and connects the upper and

lower trays

612 and 613. The upper supporting plate 612 is mainly used for installing a sterilizing wet tissue driving mechanism, and the side supporting plate 611 is mainly used for installing a linkage mechanism of a handle door. The lower plate 613 is also used to separate the space in the housing, avoiding interference between the unlocking mechanism and the handle rotation driving mechanism and the sterilizing wet tissue box.

In some embodiments, the horizontal movement of the sterilizing wipe cartridge and tray 61 may be driven by a motor or may be triggered by the opening motion of the handle door 31, which may reduce the number of motors used, reduce costs, and reduce the weight of the overall device.

The linkage structure of the handle door and the sterilizing wet tissue box and the bracket and the working mode thereof are described in detail below.

As shown in fig. 14, the body structure of the handle door 31 has 1 or 2 slide grooves 311, and the hanging block 32 is mounted on the slide groove 311, and the hanging block 32 can slide up and down in the slide groove 311. As shown in fig. 3, the first side plate 21 of the housing 2 has 1 or 2 folded grooves 212, the hanging block 32 has a protruding end shaft, and the end shaft is also engaged in the folded groove 212, and correspondingly, the side support plate 611 of the bracket 61 has a protruding engaging portion 6111. The engagement portion 6111 has a groove that engages the hanging block 32. When the hanging block 32 is pushed to the straight portion of the folded groove 212 by the handle door, the hanging block 32 moves to the other end in the slide groove 311 and enters into the clamping portion 6111. After the thickness sidewall of the hanging block 32 abuts against the wall portion of the clamping portion 6111, then the bracket 61 (and the sterilizing wet tissue box) moves with the movement of the handle door.

As shown in fig. 17, the hanging block 32, the folded groove 212 and the engagement portion 6111 are arranged in the following relationship: when the hanging block 32 is positioned at the inclined part of the folding groove 212, the hanging block 32 does not enter the clamping part 6111; when the hanging block 32 is positioned at the straight part of the folded groove 212, the hanging block 32 enters the clamping part 6111. The straight part of the folded slot 212 is close to the opening position of the clamping part 6111, and the trend of the inclined part of the folded slot 212 is matched with the door opening direction of the handle door, namely, the door opening movement enables the hanging block 32 to be close to the clamping part 6111 along the inclined part of the folded slot 212. The chute 311 of the handle door 31 has a sufficient height or travel for movement of the hanging block 32.

In the above embodiment, for the purpose of force balance, two sets of hanging blocks 32, folding grooves 212 and clamping parts 6111 may be provided at the upper and lower positions of the corresponding handle door 31, and the linkage mechanisms of the two sets are mirror-symmetrical with each other with the center line (horizontal line) as the axis. Correspondingly, on the premise that the sub-disinfection handle comprises two handles and two handle doors, the handle doors on the other side are also provided with the same linkage mechanism, and the two handle doors and the linkage mechanisms thereof are in mirror symmetry with each other through a central line (vertical line).

In the embodiment of the present invention, since the bracket 61 and the sterilizing wet tissue box are movable in the housing, in order to prevent them from shaking repeatedly in the length direction in the sterilizing process and the normal opening and closing of the door, the bracket 61 may be fixed to the housing 2 by one or more positioning guide blocks 64, and the positioning guide blocks 64 may be fixed to the first side plate 21 of the housing by screw connection.

According to an aspect of this embodiment, the positioning guide block 64 is mainly used to mount the bracket 61 and the sterilized wet tissue box in the housing, and to lock the bracket 61 from sliding in the non-sterilized state by the positioning pin 63. The positioning guide block 64 is also used for guiding the sliding of the bracket, a through hole is formed in the middle of the positioning guide block 64 along the length direction of the shell so as to penetrate through the mounting guide rail 65, two ends of the guide rail 65 are fixed at the upper supporting plate 612 of the bracket 61, namely, the guide rail 65 is kept fixed with the bracket 61, and the bracket 61 can slide back and forth along the guide rail 65 on the positioning guide block 64. The guide rail 65 may be a smooth optical axis.

As shown in fig. 14, the guide rail 65 is externally provided with 2 carriage return springs 66, and the carriage return springs 66 are symmetrically arranged on the guide rail 65 with respect to the positioning guide block 64 as a center, and the two return springs are preferably set to the same specification. The positioning guide block 64 is kept fixed, the bracket 61 and the sterilizing wet tissue box are positioned at the non-centering position after moving, and the bracket return springs 66 on two sides are stressed unevenly, so that the bracket 61 and the sterilizing wet tissue box have the common acting force for restoring to the centering position. The acting force is also used for enabling the disinfection wet tissue to be clung to the handle, so that the disinfection effect is ensured.

Specifically, as shown in fig. 15, both sides of the upper plate 612 of the bracket 61 are provided with protruding shaft seat portions 6123 for mounting the guide rail 65. An opening communicating portion 6122 is provided in the middle of the edge portion where the upper blade 612 and the side blade 611 of the bracket 61 abut, for mounting the positioning guide block 64. The opening length of the opening communicating portion 6122 should be longer than the length of the positioning guide block 64 so that the bracket 61 and the sterilizing wet tissue box can slide reciprocally on the positioning guide block 64. In order to balance the stress of the upper and lower support plates of the bracket 61, the lower support plate 613 is also symmetrically provided with a shaft seat 6123, an opening communicating portion 6122, and the like.

In the embodiment of the present invention, as shown in fig. 19, the positioning guide block 64 includes a positioning block 641 and a guide plate 642, the positioning block 641 is mainly used for mounting the entire bracket 61 and the sterilizing wet tissue box on the housing, and the positioning block 641 is disposed at the position of the opening communicating portion 6122 of the bracket 61 and fixedly connected with the first side plate 21 of the housing. The middle part of the positioning block 641 is provided with a through guide rail hole 6411 for penetrating the guide rail 65, so that the bracket 61 and the sterilizing wet tissue box are also slidably arranged in the shell through the guide rail 65. The positioning block 641 is provided at a middle portion of a side thereof facing the first side plate with a positioning pin installation groove 6412 recessed inward for installing a positioning pin 63 so as to lock or unlock the bracket 61 and the sterilizing wet tissue box by the positioning pin 63. The positioning block 641 is further provided with a connecting hole 6413 at a side facing the first side plate to be fixed on the first side plate by a screw or a bolt.

As shown in fig. 19 and 14, the guide plate 642 of the positioning guide block 64 is disposed to be located at the bottom of the positioning block 641 and extend above the upper case 711 of the sterilizing wet tissue case, and the positioning block 641 and the guide plate 642 may be integrally formed or welded and fixed together by other connection means.

In the above embodiment, the self-sterilizing door handle may be provided with two positioning guide blocks 64 at the upper and lower tray positions of the bracket 61, wherein, since the self-sterilizing door handle of the embodiment of the present invention may be provided with only 1 positioning pin, the positioning block 641 located below may not be provided with the positioning pin installation groove 6412.

The principle and the respective structures of the locking and unlocking of the bracket 61 and the sterilizing wet tissue box by the positioning pin 63 according to the embodiment of the present invention will be described in detail.

As shown in fig. 14 and 17, the positioning pin 63 is movably disposed in the connecting hole 6413 at the middle of the positioning guide block 64, and a protruding docking seat 6112 is further provided at the middle of the side supporting plate 611 of the bracket 61. The bottom end of the positioning pin 63 is wedge-shaped, and the butt seat 6112 is provided with a concave part with the same shape. When the positioning pin 63 is inserted into the docking seat 6112, the bracket 61 is locked by the positioning guide block 64 and the positioning pin 63, that is, cannot move left and right. When the positioning pin 63 moves upward to leave the docking seat 6112, the bracket 61 and the sterilized wet tissue box are unlocked, and the bracket 61 can move left and right so as to avoid the turning track of the handle.

In order to achieve the unlocking action of the positioning pin 63, the top end of the handle door 31 facing the positioning pin 63 has an extending push arm 313, and the push arm 313 may have a long strip shape with a first inclined surface at its outer end. Correspondingly, the middle part of the positioning pin 63 is provided with an engagement groove 631, and the engagement groove 631 is provided with a second inclined plane. The first inclined plane and the second inclined plane are engaged and matched, so that when the handle door 31 moves horizontally in a door opening action, the handle door 31 can drive the positioning pin 63 to lift upwards, and unlocking of the positioning pin 63 can be realized. Subsequently, the hanging block 32 slides from the inclined portion of the folded groove 212 to the straight portion, and the hanging block 32 enters the engagement portion 6111. When the handle door 31 moves to a certain position, the hanging block 32 drives the bracket 61 and the sterilizing wet tissue box to move.

In the above embodiment, the self-sterilizing door handle is provided with two handles and two handle doors symmetrically arranged on the left and right sides of the first side plate 21. As shown in fig. 16, two engagement grooves 631 are formed in the middle of the positioning pin 63, and the two engagement grooves 631 are located at different heights, or may be located at different thickness positions of the positioning pin 63, so that the structure is compact and stress concentration is avoided. Correspondingly, the pushing arms 313 of the two handle doors are also respectively located at different height positions, and respectively correspond to the two engagement grooves 631, and in addition, the directions of the inclined surfaces of the two engagement grooves 631 are different, so that when each handle door moves inwards, the positioning pins can be driven to jack up, and the bracket and the disinfection wet tissue box can be unlocked.

In the above embodiment, the handle needs to be turned back to the original position after the sterilization is completed in the sterilization position. The locating pin 63 also continues to lock the bracket 61 and the disinfectant wet wipe cartridge from swinging. In some embodiments, since the locating pin 63 is vertically disposed, it can be lowered to the docking station 6112 by its own weight. In another embodiment, the return can also be by means of a spring. For example, as shown in fig. 17 and 18, a positioning pin return spring 67 is provided on the rear side of the positioning pin 63 to achieve reliable return. One end of the positioning pin return spring 67 may be connected to the spring connecting portion 6414 protruding from the upper end surface of the fixed positioning guide block 64, and the other end is connected to the upper portion of the positioning pin 63. After the positioning pin 63 is lifted, i.e., in the unlocked state, the pulling force of the positioning pin return spring 67 on the positioning pin 63 is downward, so that the positioning pin 63 is quickly returned, i.e., in the locked state, when the bracket 61 returns to the initial centered position.

As shown in fig. 26, 27 and 28, fig. 27 is a schematic diagram of a structure before moving a box body of a self-sterilizing door handle according to a second embodiment of the present invention, in the second embodiment, the self-sterilizing door handle may not be provided with a structure of a handle door, but the self-sterilizing door handle is capable of avoiding a handle overturning path through a movable sterilizing wet tissue box, so that the length of the whole structure is reduced, and the structure is more compact.

As shown in fig. 29, 30 and 31, the sterilizing wipe cartridge moving driving mechanism may include a sixth motor 920, a gear 921 and a rack 922. Wherein, the sixth motor 920 may be fixed above the box body through a bracket, the gear 921 is fixedly installed on a motor shaft of the sixth motor 920, and the rack 922 may be fixedly installed on a housing of the self-sterilizing door handle, for example, on the rear side plate 24. The rack and pinion mechanism is used for converting the rotary motion output by the motor shaft into linear motion so that the sterilizing wet tissue box can move along the length direction of the shell of the self-sterilizing door handle, and therefore the handle 1 can be turned to a sterilizing position in the shell or an initial position outside the shell.

The sterilizing wet tissue box according to the embodiment of the present invention may be installed inside the housing of the self-sterilizing door handle through a rail-slider mechanism, which may include a rail 924 and a slider 923, and the rail-slider mechanism may be provided with two or three groups.

The sterilizing wet tissue box according to the first embodiment of the present invention is mounted on the bracket 61, and the sterilizing wet tissue box may include a sterilizing wet tissue 7, a box body 71 (which may also be referred to as a sterilizing wet tissue box body), a driving shaft 72, a driven shaft 73, a sterilizing wet tissue box sealing door 74, an arc-shaped support 75, a soft cushion 76, a guide shaft 77, etc. The driving shaft 72 and the driven shaft 73 vertically penetrate between the upper and lower cases. One end of the sterilizing wet tissue 7 is connected to the driven shaft 73, and the other end is connected to the driving shaft 72. Alternatively, the unused sterilizing wet tissues 7 are wound around the driven shaft 73, and the contaminated sterilizing wet tissues 7 after use are recovered on the driving shaft 72 by rotating the driving shaft 72.

In the above embodiment, the width of the sterilizing wet tissues 3 of the sterilizing device is generally larger than the length of the rotary knob 11 of the handle. The sterilizing wet tissues 3 are generally wet tissues soaked with sterilizing liquid, so as shown in fig. 14, 20 and 22, the box body 71 of the sterilizing device is provided with a corresponding sterilizing wet tissue box sealing door 74, so that the sterilizing liquid on the sterilizing wet tissues 3 is prevented from volatilizing, and the sterilizing effect is reduced.

As shown in fig. 14, 20 and 22, the sterilizing device disposes the sterilizing wet tissues 3 close to the outlet of the sterilizing wet tissue box sealing door 74 to be close to the rotary handle 11 of the handle. The rotary handle 11 of the handle is driven by the rotary drive mechanism of the handle to rotate, the peripheral surface of the rotary handle 11 can be clung to the disinfection wet tissue 3 to rotate for a plurality of circles, and the disinfection liquid or medicament in the disinfection wet tissue is fully contacted with the rotary handle, so that the disinfection process can be realized.

In this embodiment, in order to enhance the sufficient contact between the sterilized wet towel and the handle, the bracket of the self-sterilizing door handle is provided with two positioning guide blocks 64, corresponding guide rails 65 and bracket return springs 66 which are correspondingly and penetratingly arranged, and the bracket and the sterilized wet towel box are provided with return force through the bracket return springs 66, so that the sterilized wet towel is tightly attached to the rotating handle of the handle, and the sterilizing effect of the sterilized wet towel is ensured.

The self-sterilizing door handle according to the embodiment of the present invention is provided with handles on both inner and outer sides of the installation door leaf as shown in fig. 22, so that the sterilizing handle is correspondingly provided with a sterilizing wet tissue box sealing door 74, an arc-shaped support 75 and a soft cushion 76 on both sides of the box body 71. An arc-shaped support 75 and a soft pad 76 are disposed at positions inside the sealing door 74 of the sterilizing wet tissues box, and an outward side of the arc-shaped support 75 and the soft pad 76 is inwardly recessed into an arc-shaped portion for providing support for the sterilizing wet tissues. The disinfection wet tissue 7 is wound around the arc concave sides of the arc-shaped support 75 and the soft cushion 76, and the radian of the arc-shaped support 75 and the soft cushion 76 is the same as that of the rotary handle 11, so that the disinfection wet tissue 7 and the rotary handle 11 have a larger contact area, and the disinfection effect is ensured. In this embodiment, the arcuate support 75 and cushion 76 are positioned behind the sterilizing wet wipes cartridge sealing door 74 and may be generally flush with the width side panels of the cartridge body 71. The arc-shaped support 75 may be fixed between the upper case or the lower case of the case, and the cushion 76 may be adhered to the arc-shaped portion of the arc-shaped support 75. Cushion 76 has a degree of flexibility that deforms upon being stressed to allow the sterile wet wipe to be held against the handle, and the height of arcuate support 75 and cushion 76 may be greater than or equal to the width of the sterile wet wipe.

The sterilizing device can adopt two sets of driving shafts 72 and driven shafts 73 which respectively correspond to sterilizing wet tissue box sealing plates 74A, arc-shaped supports 75 and soft cushions 76 on two sides, the sterilization of handles on two sides is not interfered with each other, and two sterilizing wet tissues are respectively adopted for sterilization. A fifth motor 910 is fixedly installed above the sterilizing wet tissue box and is used for driving two driving shafts of the sterilizing wet tissue box to rotate. The output shaft of the fifth motor 910 is used to drive an intermediate gear 911, which drives two driven gears, respectively. The middle of the two driven gears is respectively internally provided with a unidirectional bearing with opposite limiting directions, and the two driving shafts are respectively driven to rotate in different rotating directions, so that the disinfection wet tissues disinfected by the inner and outer handles are respectively used in an alternating manner.

In the second embodiment, as shown in fig. 26 and 27, the upper parts of the left and right sides of the housing 2 are both open structures, and a protective cover 220 for covering the case 71 is provided at the open position, and the protective cover 220 may be provided in a fixed or movable structure according to actual requirements. For example, in the first embodiment, the housing 2 has a large length and enough space for the cassette 71 to move therein, and thus the shield 220 may be fixed, and the fixed structure may be regarded as an integral structure with the housing 2. In the second embodiment, the protection covers 220 on both sides may be in a movable structure, and before the handle 1 is turned over to the inside of the housing 2, the box 71 needs to translate successively, so as to flash the space for the handle 1 to turn over into the position before the box 71 of the protection cover 220 is turned over.

In other embodiments, the protective cover 220 may be fixed on one side and movable on the other side. It can be seen that, according to two embodiments of the present invention, if the protection cover 220 is provided in a fixed configuration, the lower handle 1 is not overlapped with the upper box 71 in the vertical space, in other words, the handle 1 is located at the outer side of the box 71; if the protective cover 220 is provided in a movable structure, the lower handle 1 overlaps with the upper case 71 in a vertical space, in other words, the handle 1 is located inside the case 71.

The cartridge 71 of this embodiment is generally replaceable with consumable supplies, and the entire sterile wet tissues 7 inside need to be replaced after use. As shown in fig. 31 and 29, the case 71 is mounted on a movable bracket 61, wherein the bracket including the bracket 61 may include an upper plate 612, a lower plate 613 and a side plate 611. In this embodiment, the upper plate 612, the lower plate 613 and the side plate 611 are fixedly connected, and may be of an integral structure or an assembled structure. The upper supporting plate 612 is mainly used for installing a sterilizing wet tissue driving mechanism and a sterilizing wet tissue box moving driving mechanism, and the side supporting plate 611 is mainly used for installing a guide rail sliding block mechanism. The lower supporting plate 613 is also used for separating the space in the shell 2, so that the interference between the unlocking mechanism and the handle 1 rotation driving mechanism and the sterilizing wet tissue box is avoided.

In this embodiment, the side supporting plate 611 may be located on the side of the handle 1 or on the side of the lock tongue, wherein the side supporting plate 611 may be connected to the housing 2 through a guide rail sliding block mechanism, so that the supporting plate together with the sterilized wet tissue box may slide along the length direction of the housing 2.

As shown in fig. 29 and 30, the rail-slider mechanism includes a rail 924 and a slider 923, one of which is fixedly connected to the housing 2, and the other of which is fixedly connected to the side blade 611. For example, in the second embodiment, the slider is fixedly connected to the side bracket 611, and the rail is fixedly connected to the rear side plate 24 of the housing 2. Preferably, two groups of guide rail sliding block mechanisms can be arranged and correspond to the upper side position and the lower side position of the box body 71 respectively, so that the translation process of the wet tissue box is stable.

It is further preferred that the rail-slide mechanism is provided with three sets, two of which are used for guiding the sterilized wet tissue box and the other set is used for guiding the movable hood 220, as shown in fig. 30. For example, the shield 220 is a semi-closed plate structure, is fixedly connected to the third group of sliders on a panel facing the rear side plate 24 of the housing 2, and the guide rail is fixedly connected to the rear side plate 24 of the housing 2. A limiting plate is further provided on the rear side plate 24 of the housing 2 to prevent the shield 220 from entering the inside of the housing 2. A return spring is also provided between the inner side of the protective cover 220 and the stationary housing 2. The shield 220 of this embodiment is normally held against the carrier and is not fixedly attached thereto. Thus, the outward translation of the shield 220 may be moved by the abutment of the bracket 61, and the inward return process of the shield 220 may be pulled back by the return spring.

In the second embodiment, as shown in fig. 31 and 32, a sealing plate 74A and a sealing cushion 74B may be fixed on the inner side of the vertical plate of the protective cover 220 on both sides at the position corresponding to the rectangular notch of the sterilized wet towel box, so as to prevent the wet towel from directly contacting with air, and volatilize the sterilizing agent of the wet towel, thereby affecting the sterilizing effect.

In the second embodiment, as shown in fig. 34, the opening and closing door 23 of the protective cover 220 at one side is movable to be disassembled or removed for replacement of the inside sterilizing wet tissue box. Specifically, the switch door 23 has a structure of pushing and pulling up and down.

As shown in fig. 29, the sterilizing wet tissue box moving driving mechanism is used for driving the sterilizing wet tissue box to move along the length direction of the shell 2 through the guide rail sliding block mechanism, so that the handle 1 is turned to a sterilizing position in the shell 2 or an initial position outside the shell 2 after the sterilizing wet tissue box is flashed open.

As shown in fig. 31 and 33, the sterilizing wet tissue driving mechanism includes a motor 910 fixedly provided on the upper blade 612, an intermediate gear 911, and two driving shaft gears 912; the output shaft of the motor 910 drives the intermediate gear 911, and two driving shaft gears 912 are coaxially disposed with the two driving shafts 72 and are engaged with the intermediate gear 911. Each driving shaft gear 912 is internally provided with a one-way bearing, the limiting directions of the two one-way bearings 913 are opposite, the one-way bearings 913 are connected with one end of the driving shaft 72 through a transmission shaft 914, and the transmission shaft 914 and the driving shaft 72 keep synchronous rotation.

As shown in fig. 33, the replaceable structure of the sterilizing wet tissue box may be realized by the following structure: one end of the drive shaft 72 is a flat shaft end, for example in the form of a square shaft, and the drive shafts of the two gears have a catch (end or piece) connected by the drive shaft 72, into which the flat shaft end of the drive shaft is inserted. The upper supporting plate is provided with a driving shaft limiting groove for the flat shaft end of the driving shaft to translate and enter in a preset direction.

The length fixing function of the disinfection wet tissue can be realized through the following structure. Wherein the length of the wet tissues sterilized to the handle 1 each time can be maintained uniform. The embodiment of the invention can ensure the fixed length function of the sterilized wet tissues by various modes, firstly, a guide shaft is processed with a friction surface to ensure that the wet tissues do not slip when bypassing the guide rotation, the path length of the rough surface of the guide shaft is the length of the wet tissues, and one end of the guide shaft is provided with a sensor to measure the rotation number or angle of the guide shaft, and the length of the wet tissues can be calculated according to the comparison relation of the path length. The control system belongs to a closed-loop control system. Secondly, the control relation between the rotation number of the motor and the use state of the Nth disinfection wet tissue can be adopted, the rotation number of the motor is controlled by a preset program to realize the function of fixed length, and the control system belongs to an open loop control system.

In another embodiment of the present invention, since the self-sterilizing door handle has handles at both inner and outer sides of the door, the front and rear sides of the sterilizing wet tissues 3 can be disposed at the positions of the gates at both sides of the sterilizing wet tissues box, respectively, in order to reduce the volume of the whole housing and the sterilizing wet tissues box and to reduce the disposition of the driving shaft and the driven shaft. Therefore, the sterilizing device can also adopt a set of driving shaft 72 and driven shaft 73, and adopts the front and back sides of a piece of sterilizing wet tissues to sterilize the handles on the two sides respectively. As shown in fig. 22, the sterilizing device may be provided with a plurality of guide shafts 77 for guiding and reversing the sterilized wet tissues.

For example, as shown in fig. 22, the guide shaft 77 may include a first guide shaft 77A, a second guide shaft 77B, a third guide shaft 77C, and a fourth guide shaft 77D. The arrangement of the guide shaft 77 and the sterilizing wet tissues 7 of a preferred embodiment will be described in detail below. The sterilizing wipe 7 is drawn along a tangent line on the driven shaft 73, and is first wound around the adjacent arc-shaped support 75 and cushion 76, and the first guide shaft 77A may be disposed inside the arc-shaped support 75, and the sterilizing wipe 7 is wound around inside the driven shaft 73. The second guide shaft 77B and the third guide shaft 77C are disposed on the same length side of the case 71 and close to the side plate so as to avoid the fresh unused sterilizing wipes 7 stored on the driven shaft 73. Alternatively, the second guide shaft 77B is configured to be substantially at the same height or level as an end of the driven shaft 73 facing the near arc-shaped support 75. The third guide shaft 77C is disposed substantially at a space position between the driving shaft 72 and the driven shaft 73 to perform a large angle of reversing of the sterilizing wet tissues 7. In the case, the fourth guide shaft 77D is located on the other side opposite to the third guide shaft 77C, and similarly, is also located near the other side plate on the other length side of the case. The sterilized wet tissue 7 is then wound around the arcuate support 75 and cushion 76 adjacent the drive shaft 72, and the sterilized wet tissue 7 is eventually recovered on the drive shaft 72.

In the above embodiment, the sterilizing wet tissues 7 are approximately S-shaped, and the third guide shaft 77C and the fourth guide shaft 77D are used for reversing the sterilizing wet tissues 7 together, so that the front sides and the outer sides of the sterilizing wet tissues 7 on the arc supports 75 and the soft cushions 76 on the two sides are respectively outward, that is, the handles on the two sides respectively use the front sides and the back sides of the sterilizing wet tissues 7 to sterilize, thereby not only ensuring the sterilizing effect, but also saving the use of the sterilizing wet tissues, improving the use rate of the sterilizing wet tissues and reducing the cost.

In the second embodiment, as shown in fig. 32, the sterilizing wet tissues device of the present invention may be provided with two sterilizing wet tissues 7 to sterilize two handles, respectively. Correspondingly, two sets of reel structures consisting of a driving shaft 72 and a driven shaft 73 are vertically arranged in the box body 71 of the wet towel sterilizing device. The two sterilized wet tissues 7 can be respectively wound at the soft cushion 76 and the arc-shaped support 75 at the two sides of the box body. After the driven shaft 73 is led out, the sterilized wet towel 7 can be bent to the arc-shaped support 75 under the guide of the first guide shaft 77A, and then extended to the driving shaft 72 after the second guide shaft 77B is turned. The two disinfection wet tissues can be used without interference, and the utilization rate is higher. In this embodiment, sealing plates 74A may be provided at rectangular notch positions on both sides of the sterilizing wet tissues box for exposing the sterilizing wet tissues to prevent the sterilizing liquid on the sterilizing wet tissues from volatilizing.

In the above embodiment, when the handle is sterilized, the sterilized wet tissues can be synchronously rotated and overlapped according to actual requirements, for example, under the scene of large pollution of the handle, so as to provide enough sterilizing agent for sterilizing the handle; if the sterilizing wet tissue can not rotate or slowly rotate under the condition of small handle pollution, the sterilizing wet tissue is replaced and covered with a new unused sterilizing wet tissue after the sterilizing is completed, so that the use of the sterilizing wet tissue is saved.

According to the self-sterilizing door handle of the embodiment of the present invention, the sterilizing wet tissue box sealing door 74 at least on one side is in the form of a side-by-side sliding door, i.e. comprises two door panels which are symmetrically distributed, and the width of the door opening is not smaller than the diameter of the rotary handle 11 so as to allow the handle to enter and be tightly attached to the sterilizing wet tissue. The manner of opening the sealed door 74 of the sterilizing wet tissue box may be controlled by a motor, for example, a linear motor may be used to control the linear movement of the door panel to complete the opening and closing motion. In one embodiment of the present invention, the opening and closing operation of the sealing door 74 of the sterilizing wet tissue box can also be linked with the movement of the bracket 61 and the sterilizing device, thereby reducing the use of a motor and lowering the cost.

As shown in fig. 20, the upper case body 711 of the sterilizing wet tissue case has a door opening chute 7111, and the top of the sterilizing wet tissue case sealing door 74 is provided with a protruding door opening guide shaft 741, and the door opening guide shaft 741 is inserted into the door opening chute 7111 to protrude upward. The sterilizing wet tissue sealing door 74 may be slidably coupled to the sterilizing wet tissue sealing door 74 by a hollow shaft 742 and a spring 743 fitted around the outer circumferential surface of the hollow shaft 742. In detail, the spring 743 is generally a compression spring, one end of which is fixed on one side plate of the sterilizing wet tissue box, and the other end of which is abutted against the side wall of the sterilizing wet tissue box sealing door 74, and the spring 743 applies a pre-pushing force to the sterilizing wet tissue box sealing door 74, so that the sterilizing wet tissue box sealing door 74 is in a closed state, and the inside sterilizing wet tissue is kept moist.

In the above embodiment, the fixed positioning guide block 64 is used to realize the linkage between the movement of the bracket 61 and the sterilizing wet tissue box and the opening and closing of the sterilizing wet tissue box sealing door 74. For example, as shown in fig. 19 and 21, the positioning guide block 64 includes a positioning block 641 and a guide plate 642, the guide plate 642 being located at the bottom of the positioning block 641 and extending above the upper case 711 of the sterilizing wet tissue case, the positioning block 641 and the guide plate 642 being fixed together. The guide plate 642 has two inclined guide portions 6422 corresponding to both side portions of the sterilizing wet tissue box sealing doors 74, and the directions of the inclined guide portions 6422 are opposite to each other to reversely push the two sterilizing wet tissue box sealing doors 74. The door opening guide shaft 741 protruding from the top of the sealing door 74 of the sterilizing wet tissue box contacts with the inclined surface guide part 6422 of the guide plate 642, and when the guide plate 642 is kept fixed and the sterilizing wet tissue box and the sealing door 74 of the sterilizing wet tissue box move inwards, the door opening guide shaft 741 is pushed by the inclined surface guide part 6422 of the guide plate 642 to slide in the door opening slide groove 7111 of the upper box body 711, thus the door opening operation can be completed. After the sterilization is completed, the sterilization wet tissue box sealing door 74 completes the closing action under the return action of the spring 743.

In the above embodiment, similarly, the bottom of the sealing door 74 of the sterilizing wet tissue box, the lower box body of the sterilizing wet tissue box and the positioning guide block 64 located below may also have the aforementioned door opening guide and return structure. Further, as shown in fig. 19 and 21, the middle openings 6421 on both sides of the guide plate 642 of the guide block 64 are positioned so as to avoid the driving mechanism of the drive shaft or the detection device of the guide shaft.

The sterilizing device of the embodiment of the present invention further includes a sterilizing wipe driving mechanism to drive the driving shaft 72 to rotate. As shown in fig. 23, the sterilizing wipe driving mechanism may include a fourth motor 81, a clamping shaft 82, a slotted motor mount 83, and the like. The fourth motor 81 may be fixed to the upper plate 612 of the bracket 61 by a slotted motor mount 83. The driving shaft 72 extends out of the box body and is provided with a flat shaft end, the fourth motor 81 extends out of the clamping groove shaft 82, a through clamping groove is formed in the middle of the clamping groove shaft 82, and the shape of the clamping groove is the same as that of the flat shaft end of the driving shaft 72. After the disinfection wet tissue box is arranged in the shell, the flat shaft end of the driving shaft 72 is inserted into the clamping groove of the clamping groove shaft 82, the fourth motor 81 can drive the driving shaft 72 to rotate, and the disinfection wet tissue is rolled so as to disinfect the handle for a plurality of times.

In the above implementation, since the whole disinfection wet towel box is a replaceable consumable, the grooved motor base 83 is provided with a corresponding groove, the upper supporting plate 612 of the bracket 61 is correspondingly provided with the driving shaft limiting groove 6121, as shown in fig. 15, one end of the driving shaft limiting groove 6121 near the broadside side is provided with a chamfer guiding part with a larger opening, and the butt joint part of the clamping groove shaft 82 and the driving shaft 72 of the driving shaft limiting groove 6121 is a radian groove with a larger diameter. The central opening of the driving shaft limiting groove 6121 is smaller, so that the flat shaft end extending out of the driving shaft 72 can only enter in the direction that the plane of the flat shaft end is parallel to the groove, so as to butt against the clamping groove of the clamping groove shaft 82.

In the above embodiment, the fourth motor 81 may be a stepping motor or a servo motor, and the rotation angular displacement of the clamping shaft 82 may be precisely controlled, so that the angles of the flat shaft end of the driving shaft 72, the clamping groove of the clamping shaft 82, and the driving shaft limit groove 6121 of the upper supporting plate 612 correspond to the angles when the wet towel box is more smoothly sterilized. Optionally, a sensor, such as a laser sensor, for detecting the current angular position of the clamping shaft 82 may be disposed on the grooved motor base 83, so as to transmit the feedback result to the controller, so that the alignment control of the groove position of the replacement sterilized wet tissue box is more accurate.

To facilitate the overall replacement of the disinfectant wet wipe cartridge, as shown in fig. 3, the second side plate 22 of the self-disinfecting door handle of the embodiment of the present invention has a passage corresponding to the disinfectant wet wipe cartridge, and an opening and closing door 23 is provided at the position of the passage. The second side plate 22 is adjacent to the first side plate 21 and may be one width side surface of the case 2. The switch door 23 is mainly used for replacing the whole disinfection wet tissue box after being opened, so that the height of the switch door 23 is not smaller than that of the disinfection wet tissue box, one side edge of the switch door 23 is connected with the shell in a pivot way, and the other side edge opposite to the side edge of the switch door can be connected with the shell in a clamping way or a magnetic way so as to facilitate the door opening operation. Preferably, the self-sterilizing door handle according to the embodiment of the present invention is only provided with one opening/closing door 23, preferably on the inner side of the door leaf where the self-sterilizing door handle is installed, so as to be replaced and theft-proof.

The disinfection wet tissue box provided by the embodiment of the invention can be used as a disposable consumable, and can be replaced integrally after all the disinfection wet tissues are used. The sterilizing wet tissue box is mounted on the bracket 61, specifically, between the upper and

lower blades

612 and 613 of the bracket 61. As shown in fig. 20, at least one limiting protrusion 7112 is provided at the top end of the upper case body 711 of the sterilized wet towel case, and correspondingly, as shown in fig. 15, a limiting sliding groove 6124 is provided at the lower plate wall of the upper plate 612. Preferably, two limit protrusions 7112 and limit grooves 6124 are symmetrically arranged, and the sterilized wet tissue box enters and exits the bracket 61 in a way that the limit protrusions 7112 are clamped into the limit grooves 6124 of the bracket 61.

Further, a return pressure spring is further installed on the inner side of the limit chute 6124, a button installation groove 6125 is further formed on the outer side of the limit chute 6124 in the upper supporting plate 612 of the bracket 61, as shown in fig. 15 and 14, a button 89 is installed at the button installation groove 6125, after the limit protrusion 7112 of the upper box body 711 of the sterilized wet tissue box is installed at the target position, the return pressure spring is compressed, and the bottom end of the button 89 clamps the outer side wall of the limit protrusion 7112, so that the sterilized wet tissue box is fixed in the bracket 61. Further, the button 89 is mounted in the button mounting groove 6125 through a spring, when the sterilized wet tissue box needs to be replaced, the limiting protrusion 7112 can be released by pressing down the button, and the sterilized wet tissue box pops up under the action force of the return pressure spring. The replaceable structure of the disinfection wet tissue box of the embodiment is simple and convenient to operate.

In some embodiments, the length or distance of each pass of the sterilized wet wipe should correspond to the amount of one sterilization of the handle. The self-sanitizing door handle of the present embodiments may be controlled using a variety of schemes.

For example, because the disinfection wet tissue box is used as disposable consumable, the distance and the diameter between the driving shaft and the driven shaft as well as the length and the winding tightness of the disinfection wet tissue can achieve higher unified specifications. The corresponding relation between the length of the nth disinfection wet tissue and the number of rotation turns of the driving motor can be tested in advance, the fourth motor can adopt a high-precision control motor, the comparison relation of the number of rotation turns of each driving motor is written into the controller, and a margin can be additionally added on the number of rotation turns of each driving motor, so that the brand new disinfection wet tissue with enough length can be used each time.

In another embodiment, the disinfection device can also be provided with a measurement mechanism for monitoring the length of the sterilized wet tissue, so as to feed back the measured signal to the controller, and then the controller controls the fourth motor to stop rotating, so that the control of the length of the sterilized wet tissue in each time can also be realized. For example, as shown in fig. 20 and 23, the measuring mechanism of this embodiment may use one of the guide shafts as a distance measuring shaft, for example, select the first guide shaft 77A as the distance measuring shaft, and the shaft body circumference of the distance measuring shaft may be a rough surface or coated with a high friction coefficient material so as to keep rotating synchronously with the sterilizing wet tissues 7, and the length of the traveling belt of the sterilizing wet tissues is equal to the arc length of the traveling belt at a certain point of the circumference of the distance measuring shaft, that is, the length of the traveling belt of the sterilizing wet tissues is measured according to the angular displacement of the distance measuring shaft.

In the above embodiments, a magnetic induction sensor or encoder may be employed to obtain the angular displacement of the ranging axis. Taking a magnetic induction sensor as an example, as shown in fig. 20, a rotating plate 84A embedded in an upper case 711 is installed at the shaft end of a

first guide shaft

77A, and 1 metal block 84B is provided at the eccentric position of the rotating plate 84A, and the rotating plate 84A is made of a nonmetallic material. The rotation piece 84A rotates in synchronization with the first guide shaft 77A. Correspondingly, as shown in fig. 23, a metal induction sensor 84C is provided on the upper plate 612 of the bracket 61. The metal sensor 84C is used for sensing and counting the metal block 84B, correspondingly measuring the rotation number of the first guide shaft 77A, and combining the diameter of the first guide shaft 77A to obtain the travelling length of the sterilized wet towel.

The self-sterilizing door handle is provided with a plurality of sensors and a controller for realizing automatic control and intellectualization. To obtain a trigger signal from the door handle for sterilization, a pressure sensor may be provided in the handle to sense whether a force is applied; a position sensor may be provided below the handle to sense whether the handle is pressed downward; a sensor, such as a laser sensor, a proximity switch, etc., can be arranged between the door leaf where the handle is installed and the fixed door frame, and the opening or closing signal of the door leaf is used as a trigger signal for self-sterilizing the door handle. Then, the controller controls each motor to start or stop stepwise.

When the handle is turned to the disinfection position, the handle can be in a vertical state in the shell; when the handle turns to the initial position, the handle can be in a horizontal state outside the shell, the handle can be controlled by a high-precision motor at the two positions, the position of the handle can be monitored by a sensor, and detected signals are transmitted to the controller to realize the control of the turning position of the handle.

In some embodiments, the self-sanitizing door handle may also be provided with a sensor to monitor the angular position of the latch shaft of the sanitizing device for smooth changing of the sanitizing wet wipes cartridge. The sterilizing device may also be provided with a sensor for monitoring the length of the web of sterilized wet wipes to ensure that a completely new sterilized wet wipe of sufficient length is used each time.

In some embodiments, the self-sanitizing door handle may also be provided with a structure to dry the handle. For example, a fan and an exhaust channel can be arranged in the shell, after the handle is disinfected and before the handle is turned back outside the shell, the handle can be blown by the fan to dry and dry, and the air is exhausted through the exhaust channel. The exhaust passage is normally closed and is opened only when exhaust is required. Heating structures can also be arranged in the shell or the handle for warm drying of the handle.

In some embodiments, the self-sanitizing door handle may also be provided with a display, and the controller may include a counter that may display the total number of portions of the sanitizing wipes, the number of used portions, and the remaining number of portions in the sanitizing wipes box on the display. The control system of the self-sterilizing door handle can also display information on a display whether the handle is in a sterilizing state, whether the handle is sterilized, whether the sterilizing wet tissue box needs to be replaced or not, and the like.

The disinfection process of the self-disinfection door handle according to the embodiment of the present invention is described in detail by way of example below, and the self-disinfection door handle has two handles, and correspondingly, two sets of handle door, handle door opening mechanism, handle rotation driving mechanism, etc. are provided, and the two sets of handle door opening mechanism, handle rotation driving mechanism, etc. are respectively controlled and disinfected independently.

(1) And monitoring the use condition of the handle. After the use of the handle is monitored, namely the handle completes a pressing action, a detection signal is transmitted to the controller.

(2) The handle door is opened. After detecting the preset interval time after the handle is used or detecting the door leaf to be closed, the controller can control the handle door opening mechanism which is positioned in the first side plate of the shell and is positioned on the same side with the handle to execute the handle door opening action.

Because of the multiple linkage structures of the foregoing embodiments, performing the handle door opening action may include: the bracket and the disinfection wet tissue box are unlocked and move (so as to avoid the overturning track of the handle and the flash disinfection position), and the opening action of the sealing door of the disinfection wet tissue box.

(3) The handle is turned to the disinfection position. After the execution of the actions is finished, the controller controls the handle to turn over to the disinfection position by controlling the handle rotation driving mechanism.

(4) The handle door is closed, and the handle is rotated to complete the disinfection process. After the execution of the actions is finished, the controller controls the handle door to be closed through the corresponding driving mechanism, and controls the handle to rotate through controlling the handle rotating driving mechanism, so that the omnibearing disinfection is finished.

(5) The handle door is opened, the handle is turned back to the outside of the shell, and the handle door is closed. And after the disinfection is finished. The controller completes actions such as opening the handle door, turning the handle back to outside the shell, closing the handle door and the like through the corresponding driving mechanism. A step of drying the handle may also be included before this step.

(6) The sterilizing wet tissues are driven to rotate so as to replace the unused sterilizing wet tissues. This step may be interchanged or performed simultaneously with step 5.

The self-sterilizing door handle provided by the embodiment of the invention is suitable for door leaves in various public places and household places, and is especially suitable for hospitals, especially for places of infectious disease hospitals.

The self-sterilizing door handle provided by the embodiment of the invention has the advantages of compact structure and small overall size, and can be conveniently arranged on door leaves of various application scenes.

In this disclosure, features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments and/or in combination with or instead of the features of the other embodiments.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations can be made to the embodiments of the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-sanitizing door handle comprising a housing and at least one handle extending from within said housing, wherein a first side panel of said housing from which said handle extends has a channel;

the self-sterilizing door handle also comprises a handle overturning device and a sterilizing device which are arranged in the shell;

the handle overturning device is used for overturning the handle to the inside of the shell through the channel around one end before the handle needs to be disinfected, and overturning the handle to the outside of the shell through the channel around one end after the disinfection is completed;

The sterilizing device is used for sterilizing the handle;

the handle overturning device comprises a supporting seat, an overturning shaft and a handle overturning driving mechanism, wherein the supporting seat is fixed in the shell, the overturning shaft is sleeved at one end of the handle, which is positioned in the shell, and the handle overturning driving mechanism is used for driving the overturning shaft to rotate on the supporting seat so as to drive the handle to overturn;

the disinfection device comprises a disinfection wet tissue device, the disinfection wet tissue device comprises a disinfection wet tissue box, and the disinfection wet tissue box comprises a box body, a driving shaft, a driven shaft and a disinfection wet tissue box moving driving mechanism; the driving shaft and the driven shaft vertically penetrate between the box bodies, wherein the driving shaft is used for recycling used disinfection wet tissues, the driven shaft is used for accommodating unused disinfection wet tissues, and the disinfection wet tissue box moving driving mechanism is used for driving the disinfection wet tissue box to move along the length direction of the shell, so that the handle can be turned to a disinfection position in the shell after the disinfection wet tissue box is flashed; the two sides of the disinfection wet tissue box are provided with rectangular notches for the handle to contact with the disinfection wet tissue inside.

2. The self-sanitizing door handle of claim 1, wherein the sanitizing means further comprises an ultraviolet means and/or a spray sanitizing means.

3. The self-sanitizing door handle of claim 1, wherein the sanitizing wet wipe device further comprises a sanitizing wet wipe drive mechanism disposed outside of the housing for driving the drive shaft to rotate.

4. The self-sanitizing door handle as recited in claim 3, wherein said sanitizing wipe box further has an arcuate support inside the rectangular notch, the arcuate portion of said arcuate support for providing support for said sanitizing wipe; and a soft cushion is arranged at the arc-shaped part of the arc-shaped support.

5. The self-sanitizing door handle of claim 4, wherein said sanitizing wet wipe device further comprises a bracket for mounting said sanitizing wet wipe cartridge, said bracket comprising an upper tray, a lower tray, and a side tray;

wherein, form the holding chamber that is used for holding disinfection wet tissue box between upper bracket board, the bottom plate, the side layer board is located between upper bracket board and the bottom plate and connects the two.

6. The self-sanitizing door handle of claim 5, wherein the sanitizing wipe device further comprises a rail-slider mechanism comprising a rail and a slider, wherein one of the rail or the slider is fixedly connected to the housing and the other is fixedly connected to the side fascia.

7. The self-sterilizing door handle according to claim 6, wherein two sets of the driving shaft and the driven shaft are disposed in the sterilizing wet tissue box, respectively for placing two sterilizing wet tissues to sterilize the two handles, respectively.

8. The self-sanitizing door handle of claim 7, wherein at least one guide shaft is disposed within said sanitizing wipe box adjacent both sides of said arcuate support for guiding sanitizing wipes.

9. The self-sanitizing door handle of claim 7, wherein said sanitizing wet wipe drive mechanism comprises a motor fixedly disposed on an upper tray, an intermediate gear, and two drive shaft gears; the output shaft of the motor drives the intermediate gear, and the two driving shaft gears are coaxially arranged with the two driving shafts and are meshed with the intermediate gear;

and each driving shaft gear is internally provided with a one-way bearing, the limiting directions of the two one-way bearings are opposite, the one-way bearings are connected with one end of the driving shaft through a transmission shaft, and the transmission shaft and the driving shaft keep synchronous rotation.

10. The self-sterilizing door handle according to claim 9, wherein the driving shaft is protruded on the case body and has a flat shaft end, the end of the driving shaft is provided with a catching groove, and the flat shaft end of the driving shaft is inserted into the catching groove; the upper supporting plate is provided with a driving shaft limiting groove for the flat shaft end of the driving shaft to translate and enter in a preset direction.

11. The self-sanitizing door handle of claim 9, wherein the sanitizing wet wipe moving drive mechanism comprises a motor fixedly disposed on the upper tray and a rack and pinion mechanism, wherein the rack and pinion mechanism comprises a gear fixedly connected to an output shaft of the motor and a rack fixedly connected to the housing.

12. The self-sanitizing door handle of claim 8, wherein at least one of said guide shafts has a roughened outer surface, and an angular displacement sensor is provided at one end of the guide shaft to detect the length of use of the sanitizing wipe.

13. The self-sterilizing door handle according to claim 1, wherein the upper portion of the housing is provided with a movable or fixed type protective cover corresponding to both sides of the two handles to cover the case body of the sterilizing wet tissue case.

14. The self-sterilizing door handle as claimed in claim 1, wherein a movable shield is provided at one side of the upper portion of the left and right sides of the housing, and a fixed shield is provided at the other side thereof to cover the case of the sterilizing wet tissue case.

15. A self-sterilizing door handle according to claim 13 or 14 wherein a switch door is provided on one side of the protective cover for replacing the sterilizing wet tissue box.

16. The self-sanitizing door handle of claim 13, wherein the shield is mobile, wherein the shield is a semi-enclosed panel construction; the protective cover comprises a rear panel far away from the handle, a fixedly connected sliding block is arranged on the rear panel, and a guide rail is arranged at a corresponding position of the shell; and the shell is also provided with a limiting plate for preventing the protective cover from entering the inner side of the shell.

17. The self-sterilizing door handle according to claim 13, wherein a sealing plate is provided at a position of the inner side of the protective cover corresponding to the rectangular notch of the sterilizing wet tissue box to seal the rectangular notch; and a sealing soft cushion is arranged at the edge position of the inner side of the sealing plate.