Air purification filter core convenient to clean dust

文档序号:1813285 发布日期:2021-11-09 浏览:23次 中文

阅读说明:本技术 一种便于清洁灰尘的空气净化滤芯 (Air purification filter core convenient to clean dust ) 是由 许修胜 于 2021-09-23 设计创作,主要内容包括:本发明公开了一种便于清洁灰尘的空气净化滤芯,包括净化设备机体:所述净化设备机体的内腔从上至下依次设置腔室一、腔室二和腔室三,净化设备机体的顶部嵌入式安装有进气罩,净化设备机体前侧的底部嵌入式设置有保护盖板。本发明中,通过在实际使用时,使用寿命所剩无几或者已经损坏的滤芯本体转动至安装口一的位置,使用者将保护盖板拆除取下即可,这样的安装方式不会对滤芯本体造成挤压变形,进而不会对滤芯本体造成损坏,延长滤芯本体的使用寿命,而且在拆卸时也非常的便捷,而且当前一个滤芯本体进行清洁时,便会有下一个清洁好的滤芯本体填补原来的位置,从而使得净化设备可以不受影响的继续工作,方便使用者使用。(The invention discloses an air purification filter element convenient for cleaning dust, which comprises a purification equipment body: the inner chamber of clarification plant organism sets gradually cavity one, cavity two and cavity three from last to down, and the embedded cover that admits air that installs in top of clarification plant organism, the embedded protection apron that is provided with in bottom of clarification plant organism front side. In the invention, when the filter element is actually used, a few or damaged filter element bodies with long service life are rotated to the position of the first mounting opening, and a user can detach and take down the protective cover plate, so that the filter element bodies cannot be extruded and deformed in the mounting mode, further the filter element bodies cannot be damaged, the service life of the filter element bodies is prolonged, the filter element bodies are convenient and fast to detach, and when the previous filter element body is cleaned, the next cleaned filter element body can be used for filling the original position, so that the purifying equipment can continue to work without being influenced, and the use of the user is facilitated.)

1. An air purification filter element convenient for cleaning dust, comprising a purification equipment body (1): the inner cavity of the purifying equipment body (1) is sequentially provided with a first cavity, a second cavity and a third cavity from top to bottom, the top of the purifying equipment body (1) is embedded with an air inlet cover (2), the bottom of the front side of the purifying equipment body (1) is embedded with a protective cover plate (3), the front side of the purifying equipment body (1) is detachably provided with an air outlet cover (4) positioned at the bottom of the protective cover plate (3), the right side of the purifying equipment body (1) is detachably provided with a collecting box (5), the inner cavity of the first cavity is provided with an air pumping mechanism (7), the bottom of the inner cavity of the second cavity is fixedly provided with a mounting rail (9), the top of the mounting rail (9) is fixedly provided with a disinfection and sterilization chamber (10), a filtering chamber (11) and a cleaning chamber (12) which are arranged at equal intervals, the inner cavity of the second cavity is provided with a mounting mechanism (8), and the bottom of the inner cavity of the first cavity is provided with a driving mechanism (6), an ultraviolet germicidal lamp (13) is fixedly installed at the top of the disinfection and sterilization chamber (10), four filter element bodies (14) are inserted into the top of the installation mechanism (8), and a ventilation assembly (15) is arranged in the inner cavity of the chamber III.

2. The air purification filter element convenient for cleaning dust according to claim 1, wherein the protective cover plate (3) comprises a plastic plate (31) embedded in the purification device body (1), grooves (32) are formed in two sides of the plastic plate (31), bayonet locks (33) are fixedly installed in inner cavities of the grooves (32), and the plastic plate (31) is fixedly installed on the purification device body (1) through the bayonet locks (33).

3. The air purification filter element convenient for cleaning dust according to claim 2, wherein the driving mechanism (6) comprises a rotating rod (61) rotatably installed on the inner wall of the purification device body (1) and a driving motor (62) fixedly installed in the first chamber, an output shaft of the driving motor (62) is fixedly installed with a second bevel gear (64), and the top of the surface of the rotating rod (61) is fixedly installed with a first bevel gear (63) engaged with the second bevel gear (64).

4. The air purification filter element convenient for dust cleaning according to claim 3, wherein the air pumping mechanism (7) comprises an air pump (71) and an air compressor (72) which are fixedly installed in the first chamber, the output ends of the air pump (71) and the air compressor (72) are both communicated with an air duct (73), one end of the air duct (73) on the air pump (71) extends into the inner cavity of the filter chamber (11) and is in butt joint with one of the filter element bodies (14), one end of the air duct (73) on the air compressor (72) extends into the inner cavity of the cleaning chamber (12), and the input ends of the air pump (71) and the air compressor (72) are both communicated with the air inlet hood (2).

5. An air cleaning filter element convenient for cleaning dust according to claim 4, wherein the mounting mechanism (8) comprises a rotating disc (81) fixedly mounted on the rotating rod (61) and located in the second chamber, four mounting brackets (82) are fixedly connected to the surface of the rotating disc (81), four mounting brackets (83) aligned with the four mounting brackets (82) are fixedly connected to the bottom of the rotating disc (81), and the filter element body (14) is inserted into the mounting brackets (82) and the mounting brackets (83).

6. The air purification filter element convenient for cleaning dust according to claim 5, wherein the disinfection and sterilization chamber (10) comprises a housing (1001) fixedly mounted on the mounting rail (9), both sides of the housing (1001) are provided with a first opening (1002), and one side of the housing (1001) is provided with a second opening (1003) communicated with the first opening (1002).

7. An air cleaning filter element for facilitating the cleaning of dust according to claim 6, wherein the filter element body (14) comprises a filter element housing (141) mounted in a mounting frame (82) and a mounting bracket (83), and four filter element inner cores (142) are fixedly mounted in an inner cavity of the filter element housing (141).

8. The air purification filter element convenient for dust cleaning according to claim 7, wherein the ventilation assembly (15) comprises a first air guide box (151) and a second air guide box (152) which are fixedly installed in a third chamber, the first air guide box (151) and the second air guide box (152) are communicated with each other through three connecting air pipes (153), the top of the second air guide box (152) is communicated with an air pipe (154), and the top end of the air pipe (154) penetrates into the second chamber and is butted with one of the filter element bodies (14).

9. The air purification filter element convenient for dust cleaning according to claim 8, wherein a first mounting opening (101) matched with the protective cover plate (3) is formed in the front side of the purification equipment body (1), a second mounting opening (102) matched with the air outlet cover (4) and located below the first mounting opening (101) is formed in the front side of the purification equipment body (1), and a third mounting opening (103) matched with the air inlet cover (2) is formed in the top of the purification equipment body (1).

10. An air cleaning cartridge for facilitating the cleaning of dust according to claim 9, characterised in that the turning rod (61) exaggerates chamber one and chamber two.

Technical Field

The invention belongs to the technical field of air purifiers, and particularly relates to an air purification filter element convenient for dust cleaning.

Background

An air purifier, also known as an air cleaner, an air freshener, and a purifier, refers to a product capable of adsorbing, decomposing, or converting various air pollutants (generally including PM2.5, dust, pollen, odor, formaldehyde, and other decoration pollutants, bacteria, allergens, and the like), and effectively improving air cleanliness, and is mainly classified into household, commercial, industrial, and building.

The filter element on the traditional air purifier has the following defects in the actual use process:

first, as published bulletin numbers: CN107763750B, which is an air purifier with an easily replaceable filter element, comprises a rectangular shell, a primary purification component, a deep purification component and a fan component, the fan component, the primary purification component and the deep purification component are all arranged in the shell, the primary purification component comprises the preposed filter screen, the HEPA filter element, the active carbon adsorption screen and a rectangular frame, the frame is vertically arranged and can be inserted from the top of the shell, the shell is provided with a limiting component used for limiting the height of the primary purification component, the deep purification assembly comprises a deodorization filter screen, a formaldehyde removal filter screen and an anion generation screen, the anion generation screen is connected with an anion generator, the deep purification assembly is convenient to take out the preposed filter screen, the HEPA filter element and the active carbon adsorption screen for replacement or cleaning, the installation is also very convenient after washing or changing, and preliminary purification subassembly and the cooperation of deep purification subassembly can be thorough with air purification.

The mode of its change is directly to take out the filter core, changes, and at this in-process, does not carry out the preliminary treatment, and the filter core is at the in-process that takes out, and the shake appears in the difficult emergence, and then inside accumulational dust falls the organism easily on the filter core, leads to the later stage to be more difficult to clear up, can cause the damage to the organism even, improves cost of maintenance, and the filter core takes out the cleanness moreover and compares in that inside direct clean practicality is low, and the convenience is poor.

Secondly, as public notice numbers: CN 109357337B's air purification equipment convenient to renew cartridge, including main part and operation panel, still be equipped with mediation mechanism and renewal mechanism in the main part mediation mechanism includes drive assembly, lifter plate and a plurality of mediation pole, renewal mechanism includes power component, fixed case and two removal subassemblies, the removal subassembly includes pivot and slider, fixed incasement is equipped with fixed subassembly, fixed subassembly includes first motor, rolling gear, two racks and two splint, and this air purification equipment convenient to renew cartridge passes through mediation mechanism, can dredge the work to the air outlet, avoids the air outlet to be blockked up by the dust, influences the circulation of air, through renewal mechanism, the people's of being convenient for dismouting filter core has lightened people's work burden, has improved the convenience of renew cartridge, has improved air purification equipment's practicality.

It is the mode installation filter core that adopts the centre gripping, loosens just can change during the dismantlement, but such mounting method makes the filter core warp easily, shortens life, and its equipment is inside does not have disinfection's function moreover, even takes out the cleanness, does not possess disinfection's function under the general condition yet, so the filter core still can not obtain disinfection, and the filter core can only be installed a life cycle short moreover, needs frequent change, unusual trouble.

Disclosure of Invention

The invention aims to provide an air purification filter element convenient for cleaning dust, which is characterized in that the filter element is directly taken out for replacement in a replacement way, no pretreatment is carried out in the process, the filter element is difficult to shake in the taking-out process, and dust accumulated on the filter element easily falls into the machine body, so that the later cleaning is more difficult, even the machine body is damaged, the maintenance cost is improved, and the filter element is low in practicability and poor in convenience in taking out and cleaning compared with the direct cleaning in the machine body, the filter element is installed in a clamping way and can be replaced by loosening in the disassembly process, but the installation method is easy to deform the filter element, the service life is shortened, and the interior of the equipment has no disinfection and sterilization function, even if the filter element is taken out and cleaned, the filter element generally has no disinfection and sterilization function, so the filter element still cannot be disinfected and sterilized, and the filter element can only be installed for one, has short service cycle, needs to be frequently replaced and is very troublesome.

The technical scheme for solving the technical problems is as follows: an air purification filter core convenient to clean dust, includes the clarification plant organism: the inner cavity of the purifying equipment body is sequentially provided with a first cavity, a second cavity and a third cavity from top to bottom, the top of the purifying equipment body is embedded with an air inlet cover, the bottom of the front side of the purifying equipment body is embedded with a protective cover plate, the front side of the purifying equipment body is detachably provided with an air outlet cover positioned at the bottom of the protective cover plate, the right side of the purifying equipment body is detachably provided with a collecting box, the inner cavity of the first cavity is provided with an air exhaust mechanism, the bottom of the inner cavity of the second cavity is fixedly provided with an installation rail, the top of the installation rail is fixedly provided with a disinfection and sterilization chamber, a filter chamber and a cleaning chamber which are arranged at equal intervals, the inner cavity of the second cavity is provided with an installation mechanism, the bottom of the inner cavity of the first cavity is provided with a driving mechanism, the top of the disinfection and sterilization chamber is fixedly provided with an ultraviolet sterilization lamp, and the top of the installation mechanism is inserted with four filter element bodies, and the inner cavity of the cavity III is provided with a ventilation assembly.

Preferably, the protective cover plate comprises a plastic plate embedded in the purifying equipment body, grooves are formed in two sides of the plastic plate, bayonet locks are fixedly installed in the inner cavities of the grooves, and the plastic plate is fixedly installed on the purifying equipment body through the bayonet locks.

Preferably, the driving mechanism comprises a rotating rod rotatably installed on the inner wall of the purifying equipment body and a driving motor fixedly installed in the first chamber, a second bevel gear is fixedly installed on an output shaft of the driving motor, and a first bevel gear meshed with the second bevel gear is fixedly installed on the top of the surface of the rotating rod.

Preferably, the air pumping mechanism comprises an air pump and an air compressor which are fixedly installed in the first chamber, the output ends of the air pump and the air compressor are communicated with an air guide pipe, one end of the air guide pipe on the air pump extends into the inner cavity of the filtering chamber and is in butt joint with one of the filter element bodies, one end of the air guide pipe on the air compressor extends into the inner cavity of the cleaning chamber, and the input ends of the air pump and the air compressor are communicated with the air inlet cover.

Preferably, installation mechanism includes that fixed mounting just is located the carousel of chamber two on the dwang, the fixed surface of carousel is connected with four mounting brackets, the bottom fixedly connected with of carousel is four with the installation bracket that four mounting brackets align, the filter core body is pegged graft in mounting bracket and installation bracket.

Preferably, the disinfection and sterilization chamber comprises a shell fixedly mounted on the mounting rail, the two sides of the shell are respectively provided with a first opening, and one side of the shell is provided with a second opening communicated with the first opening.

Preferably, the filter core body is including installing the filter core shell in mounting bracket and mounting bracket, the inner chamber fixed mounting of filter core shell has four filter core inner cores.

Preferably, the ventilation assembly comprises a first air guide box and a second air guide box which are fixedly installed in a third cavity, the first air guide box and the second air guide box are communicated with each other through three connecting air pipes, the top of the second air guide box is communicated with an air pipe, and the top end of the air pipe penetrates into the second cavity and is in butt joint with one filter element body.

Preferably, the front side of the purifying equipment body is provided with a first mounting opening matched with the protective cover plate, the front side of the purifying equipment body is provided with a second mounting opening matched with the air outlet cover and positioned below the first mounting opening, and the top of the purifying equipment body is provided with a third mounting opening matched with the air inlet cover.

Preferably, the rotating rod vertically exaggerates chamber one and chamber two.

1. The invention has the beneficial effects that: in the invention, when the filter element body needs to be replaced in actual use, a user starts the driving motor through the matched remote control equipment to rotate the filter element body with little service life or damaged to the position of the first installation opening, and the user removes the protective cover plate, so that the filter element body is not extruded and deformed in the installation mode, the service life of the filter element body is prolonged, the filter element body is convenient and fast to detach, the filter element body can be taken out upwards, even if shaking occurs, shaken dust falls into the collecting box, and after the collecting box is fully collected, the collecting box is taken out to be cleaned, so that the phenomenon that the shaken dust damages the machine body can be avoided, the maintenance cost is reduced, and when the current filter element body is cleaned, the next cleaned filter element body can be used for filling the original position, therefore, the purifying equipment can continue to work without being influenced, the air purifying filter element is convenient for a user to use, the air purifying filter element convenient for cleaning dust is convenient for the user to replace by directly taking out the filter element without pretreatment, the filter element is difficult to shake in the process of taking out, and dust accumulated on the filter element easily falls into the machine body, so that the later period is more difficult to clean and even the machine body is damaged, the maintenance cost is improved, the practicability of taking out and cleaning the filter element is low compared with the direct cleaning in the machine body, the convenience is poor, the filter element is installed in a clamping mode, the filter element can be replaced by loosening in the disassembly process, but the filter element is easy to deform by the installation method, the service life is shortened, and the inside of the equipment has no disinfection function, even if the filter element is taken out and cleaned, the air purifying filter element does not have the disinfection function under the general condition, therefore, the filter element can not be disinfected and sterilized, and the filter element can only be installed for a short period of use and needs to be replaced frequently, which is a very troublesome technical problem.

Drawings

The above and/or other advantages of the invention will become more apparent and more readily appreciated from the following detailed description taken in conjunction with the accompanying drawings, which are given by way of illustration only and not by way of limitation, and in which:

FIG. 1 is a schematic diagram of one embodiment of the present invention;

FIG. 2 is a schematic exploded view of an embodiment of the present invention;

FIG. 3 is a schematic perspective exploded view of an internal structure according to an embodiment of the present invention;

FIG. 4 is a perspective view of a vent assembly according to one embodiment of the present invention;

FIG. 5 is a perspective view of a protective cover according to an embodiment of the present invention;

fig. 6 is a perspective view of a filter element body according to an embodiment of the invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a purifying equipment body, 2, an air inlet cover, 3, a protective cover plate, 4, an air outlet cover, 5, a collecting box, 6, a driving mechanism, 7, an air pumping mechanism, 8, an installation mechanism, 9, an installation rail, 10, a disinfection and sterilization chamber, 11, a filter chamber, 12, a cleaning chamber, 13, an ultraviolet germicidal lamp, 14, a filter element body, 15, a ventilation component, 101, a first installation opening, 102, a second installation opening, 103, a third installation opening, 31, a plastic plate, 32, a groove, 33, a clamping pin, 61, a rotating rod, 62, a driving motor, 63, a first bevel gear, 64, a second bevel gear, 71, an air pump, 72, an air compressor, 73, an air guide pipe, 81, a rotating disk, 82, an installation rack, 83, an installation bracket, 1001, a shell, 1002, a first opening, 1003, a second opening, 141, a filter element shell, 142, a filter element inner core, 151, a first air guide box, 152, a second air guide box, 153 and a connecting air pipe, 154. a gas delivery pipe.

Detailed Description

Hereinafter, embodiments of an air cleaning filter cartridge for facilitating cleaning of dust according to the present invention will be described with reference to the accompanying drawings.

The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. It is noted that the drawings are not necessarily to the same scale so as to clearly illustrate the structures of the various elements of the embodiments of the invention. Like reference numerals are used to denote like parts.

Fig. 1 to 6 show an air cleaning filter cartridge for facilitating cleaning of dust according to an embodiment of the present invention, which includes a cleaning apparatus body 1: the inner cavity of the purifying equipment body 1 is sequentially provided with a first cavity, a second cavity and a third cavity from top to bottom, the top of the purifying equipment body 1 is embedded with an air inlet cover 2, the bottom of the front side of the purifying equipment body 1 is embedded with a protective cover plate 3, the front side of the purifying equipment body 1 is detachably provided with an air outlet cover 4 positioned at the bottom of the protective cover plate 3, the right side of the purifying equipment body 1 is detachably provided with a collecting box 5, the inner cavity of the first cavity is provided with an air exhaust mechanism 7, the bottom of the inner cavity of the second cavity is fixedly provided with a mounting rail 9, the top of the mounting rail 9 is fixedly provided with a sterilizing chamber 10, a filtering chamber 11 and a cleaning chamber 12 which are arranged at equal intervals, the inner cavity of the second cavity is provided with a mounting mechanism 8, the bottom of the inner cavity of the first cavity is provided with a driving mechanism 6, the top of the sterilizing chamber 10 is fixedly provided with an ultraviolet sterilizing lamp 13, and the top of the mounting mechanism 8 is inserted with four filter element bodies 14, the inner cavity of the third chamber is provided with a ventilation component 15, the protective cover plate 3 comprises a plastic plate 31 embedded on the purifying equipment body 1, two sides of the plastic plate 31 are both provided with a groove 32, a bayonet 33 is fixedly installed in the inner cavity of the groove 32, the plastic plate 31 is fixedly installed on the purifying equipment body 1 through the bayonet 33, the driving mechanism 6 comprises a rotating rod 61 rotatably installed on the inner wall of the purifying equipment body 1 and a driving motor 62 fixedly installed in the first chamber, an output shaft of the driving motor 62 is fixedly provided with a bevel gear II 64, the top of the surface of the rotating rod 61 is fixedly provided with a bevel gear I63 meshed with the bevel gear II 64, the air pumping mechanism 7 comprises an air pump 71 and an air compressor 72 fixedly installed in the first chamber, output ends of the air pump 71 and the air compressor 72 are both communicated with an air guide pipe 73, one end of the air guide pipe 73 on the air pump 71 extends into the inner cavity of the filtering chamber 11 and is butted with one of the filter element bodies 14, one end of an air duct 73 on the air compressor 72 extends into an inner cavity of the cleaning chamber 12, input ends of the air pump 71 and the air compressor 72 are communicated with the air inlet hood 2, the mounting mechanism 8 comprises a rotary disc 81 which is fixedly mounted on the rotary rod 61 and is positioned in the second cavity, four mounting frames 82 are fixedly connected to the surface of the rotary disc 81, four mounting brackets 83 aligned with the four mounting frames 82 are fixedly connected to the bottom of the rotary disc 81, the filter element body 14 is inserted into the mounting frames 82 and the mounting brackets 83, the disinfection and sterilization chamber 10 comprises a shell 1001 which is fixedly mounted on the mounting rail 9, openings 1002 are respectively formed in two sides of the shell 1001, an opening two communicated with the opening 1002 is formed in one side of the shell 1001, the filter element body 14 comprises a filter element shell 141 which is mounted in the mounting frames 82 and the mounting brackets 83, four filter element inner cores 142 are fixedly mounted in an inner cavity of the filter element shell 141, the ventilation assembly 15 comprises an air duct I151 and an air duct II 152 which are fixedly mounted in the third cavity, the first air guide box 151 and the second air guide box 152 are communicated with each other through the three connecting air pipes 153, the top of the second air guide box 152 is communicated with the air pipes 154, the top ends of the air pipes 154 penetrate into the second cavity and are in butt joint with one of the filter element bodies 14, the first mounting opening 101 matched with the protective cover plate 3 is arranged on the front side of the purifying equipment body 1, the second mounting opening 102 matched with the air outlet cover 4 and located below the first mounting opening 101 is arranged on the front side of the purifying equipment body 1, the third mounting opening 103 matched with the air inlet cover 2 is arranged on the top of the purifying equipment body 1, and the first cavity and the second cavity are vertically enlarged through the rotating rod 61.

The working principle is as follows: when the filter element body 14 needs to be replaced in practical use, a user starts the driving motor 62 through matched remote control equipment, the driving motor 62 drives the bevel gear II 64 to rotate, the bevel gear II 64 drives the bevel gear I63 to rotate, the bevel gear I63 drives the rotating rod 61 to rotate, the rotating rod 61 drives the rotating disk 81 to rotate, the four mounting frames 82 also rotate along with the rotation, then the filter element body 14 which has little service life or is damaged is rotated to the position of the mounting opening I101, the user removes the protective cover plate 3, then the damaged filter element body 14 is taken out from the mounting frames 82 and the mounting bracket 83 through the mounting opening I101, a new filter element body 14 is replaced, and then the protective cover plate 3 is mounted again, so that the mounting mode can not cause extrusion deformation to the filter element body 14 and further can not cause damage to the filter element body 14, extension filter core body 14's life, also very convenient when dismantling moreover, upwards take out can, even appear shaking, the dust of shaking off also can fall into in collecting box 5, treat to collect full back, will collect box 5 and take out the clearance can to and can avoid the dust of shaking off to cause the destruction to the organism, reduce cost of maintenance.

When the air purification equipment works, the air pump 71 is started to suck outside dirty air through the air inlet cover 2, then the air enters the filter chamber 11 through one of the air ducts 73, enters the ventilation assembly 15 after being filtered by the filter element body 14, and finally the purified air is discharged through the air outlet cover 4.

When the filter element body 14 in use accumulates a large amount of dust and the purifying effect is reduced, the rotating rod 61 is started to finally drive the mounting mechanism 8 to rotate, the filter element body 14 to be cleaned is rotated to the inner cavity of the cleaning chamber 12, then the air compressor 72 is started to compress air to form compressed air, the filter element body 14 in the cleaning chamber 12 is cleaned, the clean dust falls into the collecting box 5 to be collected, the cleaned filter element body 14 is continuously rotated to the inside of the sterilizing chamber 10, the ultraviolet sterilizing lamp 13 is started to perform ultraviolet sterilization and disinfection on the filter element body 14, the filter element body 14 after being cleaned and sterilized can be reserved for standby, because four filter element bodies 14 are installed, when the current one is cleaned, the next cleaned filter element body 14 can fill the original position, and the purifying equipment can continue to work without being influenced, is convenient for users to use.

The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention, so as to achieve the purpose of the invention.

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