CN216088742U

CN216088742U - Split type cleaning purifier

Info

Publication number: CN216088742U
Application number: CN202121320514.7U
Authority: CN
Inventors: 齐斌
Original assignee: Zhongshan Yahong Electrical Appliance Co ltd
Current assignee: Zhongshan Yahong Electrical Appliance Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-03-22
Anticipated expiration: 2031-06-11

Abstract

The utility model discloses a split type cleaning purifier, which comprises a host and an electrolytic device, wherein the host comprises a host shell, the host shell comprises a placing area for placing the electrolytic device and an operating area for operating the electrolytic device, and a digital display circuit board and an operation display panel electrically connected with the digital display circuit board are arranged in the host shell corresponding to the operating area; the host shell is provided with a containing shell with a containing cavity, the inside of the containing shell is provided with a spring connecting wire, the electrolysis device can be detachably fixed on a placing area of the host shell, one end of the spring connecting wire is fixed in the containing shell and electrically connected with the digital display circuit board, and the other end of the spring connecting wire extends out of the containing shell and is electrically connected with the electrolysis device. This split type cleaning purifier adopts electrolysis unit and the host computer of components of a whole that can function independently structure, and the assembly is convenient, uses in a flexible way, utilizes electrolysis unit to carry out the ionization with water, realizes wasing the purification, and conveniently clears up the impurity in the electrolysis unit after the purification is accomplished.

Description

Split type cleaning purifier

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to a split type cleaning purifier.

Background

With the progress of society and the improvement of living standard, people pay more and more attention to the safety problem of diet. However, most fruits and vegetables sold in the market have pesticide residues, and tableware for containing the fruits and vegetables is easy to breed bacteria, so that potential harm is brought to the health of people. The existing fruit and vegetable cleaning method comprises electrolytic water, ozone, ultrasound, bubbles and the like, wherein electrocatalytic oxidation is another form of advanced oxidation technology, the electrolytic water has stronger oxidation capacity than ozone, organic matters in water can be thoroughly oxidized into carbon dioxide, water and the like, and hydroxyl radicals have short service life in water and no residue, so the method is a green and clean oxidation technology. The electrolytic fruit and vegetable purifier is more and more applied, but the electrolytic fruit and vegetable purifier generally adopts an integrated design, and an electrolytic module cannot be detached independently and is not easy to clean after being used for a period of time.

SUMMERY OF THE UTILITY MODEL

In order to overcome the disadvantages of the prior art, the present invention provides a split cleaning purifier, which also solves the problems mentioned in the background art.

The purpose of the utility model is realized by adopting the following technical scheme:

a split type cleaning purifier comprises a host and an electrolytic device, wherein the host comprises a host shell, the host shell comprises a placing area for placing the electrolytic device and an operating area for operating the electrolytic device, and a digital display circuit board and an operation display panel electrically connected with the digital display circuit board are arranged in the host shell corresponding to the operating area; the portable computer is characterized in that a storage shell with a storage cavity is arranged on the host shell, a spring connecting wire is arranged inside the storage shell, the electrolytic device can be detachably fixed on a placement area of the host shell, one end of the spring connecting wire is fixed in the storage shell and electrically connected with the digital display circuit board, and the other end of the spring connecting wire extends out of the storage shell and electrically connected with the electrolytic device.

Further, electrolytic device includes the electrolysis casing, sets up control circuit board, screen panel and electrolysis subassembly in the electrolysis casing, the electrolysis subassembly includes upper and lower dislocation place's two sets of the same first electrode piece group and second electrode piece group, first electrode piece group and second electrode piece group all include pin portion and connecting portion, connecting portion dorsad one side of pin portion is connected with curved slice plate electrode, the screen panel is inside to be provided with and to be used for the joint the draw-in groove of slice plate electrode, first electrode piece group and second electrode piece group respectively through first conductive screw and second conductive screw with the control circuit board electricity is connected, the spring coupling wire other end pass through conductive screw with control circuit board electric connection.

Furthermore, the electrolysis device also comprises a first conductive connecting nut and a second conductive connecting nut, the pin parts of the first electrode plate group and the second electrode group are respectively provided with a first connecting hole matched with the first conductive connecting nut and a second connecting hole matched with the second conductive connecting nut, the mesh enclosure is provided with a first avoidance hole and a second avoidance hole corresponding to the first connecting hole and the second connecting hole, one end of the first conductive connecting nut sequentially passes through the first connecting hole and the first avoidance hole and then is in threaded connection with one end of the first conductive screw, the nut of the first conductive connecting nut is supported on the lower end face of the pin part of the first electrode plate group, the other end of the first conductive screw is in threaded connection with the control circuit board, one end of the second conductive connecting nut sequentially passes through the second connecting hole and the second avoidance hole and then is in threaded connection with one end of the second conductive screw, and the nut of the second conductive connecting nut is abutted against the lower end face of the pin part of the second electrode plate group, and the other end of the second conductive screw is in threaded connection with the control circuit board.

Further, the electrolysis casing is the arc structure, the one end of electrolysis casing can be dismantled and be connected with right dress trim cover, other end rigid coupling and left dress trim cover, left side dress trim cover and right dress trim cover all are equipped with a plurality of bar holes, and a plurality of bar holes are the annular array setting, left side dress trim cover is equipped with the confession spring coupling wire penetrates trompil in the electrolysis casing.

Further, the electrolysis device still includes the atmosphere lamp that sets up in the electrolysis casing, atmosphere lamp with control circuit board electric connection.

Further, the electrolysis device also comprises a balancing weight arranged in the electrolysis shell.

Furthermore, a first magnetic attraction piece is arranged in the position, corresponding to the placement area, inside the host shell, the electrolysis device is provided with a second magnetic attraction piece, and the second magnetic attraction piece and the first magnetic attraction piece attract each other to enable the electrolysis device to be fixed on the placement area.

Further, the operation display panel is including controlling display module assembly and character display membrane, it is equipped with the ring channel to control display module assembly surface, the bottom of ring channel is equipped with the orientation control the leg perforation that display module assembly bottom surface runs through, set up the touch spring in the ring channel, the top of touch spring is higher than control display module assembly's surface, the leg of touch spring passes the leg perforation is connected with digital display circuit board, the character display membrane with control display module assembly's surface laminating.

Furthermore, the accommodating shell comprises an accommodating bottom shell and an accommodating face shell which are connected in a buckling mode, the accommodating bottom shell is fixedly connected with the host shell, the accommodating bottom shell is provided with a wire through hole, a channel allowing a spring connecting wire to enter the inside of the host shell is formed in the host shell, the accommodating shell is provided with an opening in butt joint with the electrolytic shell, and the other end of the spring connecting wire extends out of the opening.

Further, the mainframe shell is of a circular structure, the electrolysis shell and the storage shell are both of arc structures, and the electrolysis shell and the storage shell are combined to form a circular ring.

Compared with the prior art, the utility model has the beneficial effects that:

the electrolysis device of the split cleaning purifier is detachably fixed outside the host shell and is electrically connected with the digital display circuit board through the spring connecting lead, when cleaning is needed, the electrolysis device is detached from the host shell and is placed in the cleaning basin, then the electrolysis device is electrified and started through the operation display panel, cleaning and purifying work can be carried out on objects to be cleaned after electrification, after cleaning is finished, the electrolysis device can be cleaned, and then the electrolysis device is installed on the host shell again, so that the split cleaning purifier is quite convenient to use. The electrolysis device and the host machine are electrically connected by adopting the spring connecting lead, the elasticity of the spring connecting lead is utilized for stretching and shrinking, and when the electrolysis device works, the spring connecting lead is in a stretching state, so that the application range of the electrolysis device can be enlarged; when the electrolysis device does not work, the spring connecting lead is in a contraction state and can be hidden in the containing shell, so that the space is effectively saved, and the overall appearance is more concise and attractive.

Drawings

FIG. 1 is an exploded view of a split cleaning and purifying device provided by the present invention;

FIG. 2 is a schematic view of the interior of a split cleaning purifier provided by the present invention;

FIG. 3 is a sectional view of a split cleaning purifier provided by the present invention;

FIG. 4 is an exploded view of the main body housing of a split cleaning purifier provided by the utility model;

FIG. 5 is a schematic view of the assembly of the electrolysis device and the spring connecting wire of the split cleaning purifier provided by the present invention;

FIG. 6 is an exploded view of an electrolytic device of a split cleaning purifier provided by the present invention;

FIG. 7 is a cross-sectional view of an electrolytic device of a split cleaning purifier according to the present invention;

fig. 8 is a second sectional view of a split cleaning purifier according to the present invention;

in the figure: 10. a host; 101. a main housing; 102. a digital display circuit board; 103. a character display film; 104. an annular groove; 105. a touch spring; 106. a housing case; 1061. a receiving bottom case; 1062. a receiving panel shell; 107. the spring is connected with the lead; 108. a first magnetic attraction member; 20. an electrolysis device; 201. an electrolytic housing; 2011. an upper bottom case; 2012. a lower bottom shell; 202. a first electrode sheet group; 2020. a lead part; 2021. A connecting portion; 2022. a sheet-like electrode plate; 203. a second electrode sheet set; 204. a mesh enclosure; 2041. a card slot; 205. pressing a plate; 206. a control circuit board; 207. a first conductive screw; 208. a second conductive screw; 209. a first conductive coupling nut; 210. a second conductive coupling nut; 211. an atmosphere lamp; 212. a balancing weight; 213. a left decorative cover; 214. a right decorative cover; 215. a second magnetic attraction member; 216. a conductive screw.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).

As shown in fig. 1 to 8, the split cleaning purifier provided by the present invention includes a main unit 10 and an electrolysis device 20, wherein the main unit 10 includes a main unit casing 101, the main unit casing 101 includes a placement area for placing the electrolysis device 20 and an operation area for operating the electrolysis device 20, and a digital display circuit board 102 and an operation display panel electrically connected to the digital display circuit board 102 are disposed in the main unit casing 101 corresponding to the operation area; be equipped with on the host computer casing 101 and have the storage housing 106 who accomodates the chamber, the inside spring coupling wire 107 that is equipped with of storage housing 106, electrolytic device 20 can dismantle to be fixed on the district of placing of host computer casing 101, spring coupling wire 107 one end is fixed in storage housing 106 and with digital display circuit board 102 electric connection, the spring coupling wire 107 other end stretches out storage housing 106 and with electrolytic device 20 electric connection.

The electrolysis device 20 of the split cleaning purifier is detachably fixed outside the main machine shell 101 and is electrically connected with the digital display circuit board 102 through the spring connecting lead 107, when cleaning is needed, the electrolysis device 20 is detached from the main machine shell 101 and is placed in a cleaning basin, then the electrolysis device 20 is electrified and started through the operation display panel, cleaning and purifying work can be carried out on objects to be cleaned after electrification, after cleaning is finished, the electrolysis device 20 can be cleaned, and then the electrolysis device 20 is installed on the main machine shell 101 again, so that the split cleaning purifier is quite convenient to use. The electrolysis device 20 and the host machine 10 are electrically connected by the spring connecting lead 107, the spring connecting lead 107 stretches and contracts by the elasticity of the spring connecting lead 107, and when the electrolysis device 20 works, the spring connecting lead 107 is in a stretching state, so that the application range of the electrolysis device 20 can be expanded; when the electrolysis device 20 is not in operation, the spring connecting lead 107 is in a contracted state and can be hidden in the storage shell 106, so that the space is effectively saved, and the overall appearance is more concise and beautiful.

The split cleaning purifier can be used for cleaning fruits and vegetables, fresh fruits, meat, tableware, infants and other fields.

The electrolysis principle of the electrolysis device 20 of the present invention is to ionize water to generate hydrogen ions and hydroxyl ions, thereby generating hydroxyl radicals, and to sterilize, remove pesticide residues and hormones by the strong oxidizing ability of the hydroxyl radicals, thereby achieving cleaning and purification.

Preferably, the electrolysis device 20 includes an electrolysis housing 201, a control circuit board 206 disposed in the electrolysis housing 201, a mesh enclosure 204, and an electrolysis assembly, the electrolysis assembly includes two sets of identical first electrode plate sets 202 and second electrode sets disposed in a staggered manner, each of the first electrode plate sets 202 and the second electrode plate sets 203 includes a pin portion 2020 and a connection portion 2021, one side of the connection portion 2021 facing away from the pin portion 2020 is connected to an arc-shaped sheet electrode plate 2022, a clamping groove 2041 for clamping the sheet electrode plate 2022 is disposed in the mesh enclosure 204, the first electrode plate sets 202 and the second electrode sets are electrically connected to the control circuit board 206 through a first conductive screw 207 and a second conductive screw 208, respectively, and the other end of the spring connection lead 107 is electrically connected to the control circuit board 206 through a conductive screw 216.

Specifically, in order to prevent the first electrode plate group 202 and the second electrode plate group 203 from popping up to cause short circuit, a pressing plate 205 is arranged in the electrolytic shell 201, and the electrolytic assembly is stably fixed in the electrolytic shell 201 by adopting a structure that the pressing plate 205 is matched with a mesh enclosure 204.

In the present embodiment, the control circuit board 206 is subjected to a waterproofing treatment, wherein the waterproofing treatment may be performed by using the prior art, which is specifically defined herein. In this embodiment, the first electrode plate set 202 and the second electrode plate set 203 are respectively connected to the control circuit board 206 through the first conductive screw 207 and the second conductive screw 208, so that the control circuit board 206 transmits voltage to the first electrode plate set 202 and the second electrode plate set 203 through the first conductive screw 207 and the second conductive screw 208. The first electrode sheet set 202 and the second electrode sheet set 203 are preferably metal titanium mesh plates, and the electrolytic effect is good.

Specifically, the electrolytic device 20 further includes a first conductive connection nut 209 and a second conductive connection nut 210, the pin portions 2020 of the first electrode group 202 and the second electrode group are respectively provided with a first connection hole adapted to the first conductive connection nut 209 and a second connection hole adapted to the second conductive connection nut 210, the mesh enclosure 204 is provided with a first avoidance hole and a second avoidance hole corresponding to the first connection hole and the second connection hole, one end of the first conductive connection nut 209 sequentially passes through the first connection hole and the first avoidance hole and then is in threaded connection with one end of the first conductive screw 207, the nut of the first conductive connection nut 209 abuts against the lower end face of the pin portion 2020 of the first electrode group 202, the other end of the first conductive screw 207 is in threaded connection with the control circuit board 206, one end of the second conductive connection nut 210 sequentially passes through the second connection hole and the second avoidance hole and then is in threaded connection with one end of the second conductive screw 208 The screw cap of the second conductive connection nut 210 abuts against the lower end face of the lead portion of the second electrode plate group 203, and the other end of the second conductive screw 208 is in threaded connection with the control circuit board 206.

The electrolytic housing 201 of the present embodiment includes an upper bottom shell 2011 and a lower bottom shell 2012, wherein the lower bottom shell 2012 is provided with a plurality of water inlet holes.

Preferably, electrolysis casing 201 is the arc structure, electrolysis casing 201's one end can be dismantled and be connected with right dress trim cover 214, other end rigid coupling and left dress trim cover 213, left side dress trim cover 213 and right dress trim cover 214 all are equipped with a plurality of bar holes, and a plurality of bar holes are the annular array setting, left side dress trim cover 213 is equipped with the confession spring coupling wire 107 penetrates trompil in the electrolysis casing 201. In order to prevent impurities from being clamped into the electrolytic shell 201 and being incapable of being cleaned, the right decorative cover 214 is detachably connected with the electrolytic shell 201, and when the electrolytic device 20 needs to be cleaned, the right decorative cover 214 is detached, so that the impurities can be washed out; the left decorative cover 213 and the right decorative cover 214 are both provided with a plurality of strip-shaped holes to increase water inflow; a plurality of bar holes are arranged in an annular array, so that the attractiveness is improved.

Preferably, the electrolysis device 20 further comprises an atmosphere lamp 211 disposed in the electrolysis housing 201, wherein the atmosphere lamp 211 is electrically connected to the control circuit board 206. By providing the atmosphere lamp 211, the ionization in the water can be observed by means of the atmosphere lamp 211. The atmosphere lamp 211 of the present embodiment is also subjected to a water repellent treatment, wherein the water repellent treatment may be applied to the prior art, which is specifically defined herein.

Preferably, the electrolysis device 20 further comprises a weight 212 disposed within the electrolysis housing 201. The weight-balancing block 212 is used for increasing the overall weight of the electrolysis device 20, so that the problem that the electrolysis device cannot sink due to too low density in the cleaning container can be avoided, and the working effect of the electrolysis device 20 is further ensured.

Preferably, a first magnetic attraction element 108 is disposed inside the main housing 101 at a position corresponding to the placement area, the electrolysis device 20 is provided with a second magnetic attraction element 215, and the second magnetic attraction element 215 and the first magnetic attraction element 108 attract each other to fix the electrolysis device 20 on the placement area. The first magnetic element 108 and the second magnetic element 215 of the present embodiment are preferably magnets, and can be stably fixed on the main housing 101 by using the magnetic attraction function, so as to prevent the electrolysis device 20 from shaking during carrying.

Preferably, the operation display panel comprises an operation display module and a character display film 103, wherein an annular groove 104 is formed in the surface of the operation display module, a leg through hole penetrating towards the bottom surface of the operation display module is formed in the bottom of the annular groove 104, a touch spring 105 is arranged in the annular groove 104, the top end of the touch spring 105 is higher than the surface of the operation display module, the leg of the touch spring 105 penetrates through the leg through hole to be connected with the digital display circuit board 102, and the character display film 103 is attached to the surface of the operation display module.

Characters such as "start/cancel", "baby product", "tableware", "fresh/meat", "fruit and vegetable" are provided on the character display film 103 of the present invention, wherein the characters on the character display film 103 are added according to actual functions, and are not limited to those exemplified in the present embodiment.

Preferably, the receiving case 106 comprises a receiving bottom case 1061 and a receiving front case 1062 connected by a snap-fit manner, the receiving bottom case 1061 is fixedly connected to the main case 101, the receiving bottom case 1061 is provided with a wire through hole, the main case 101 is provided with a channel for allowing a spring connecting wire 107 to enter the main case 101, the receiving case is provided with an opening butted with the electrolytic case 201javascript:void(0)；The other end of the spring connecting wire 107 protrudes from the opening.

Preferably, the main machine housing 101 has a circular structure, the electrolytic housing 201 and the receiving housing 106 have an arc structure, and the electrolytic housing 201 and the receiving housing 106 form a circular ring in combination. Therefore, the whole structure is beautiful and novel, and the occupied space is small.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A split type cleaning purifier is characterized by comprising a host and an electrolytic device, wherein the host comprises a host shell, the host shell comprises a placing area for placing the electrolytic device and an operating area for operating the electrolytic device, and a digital display circuit board and an operation display panel electrically connected with the digital display circuit board are arranged in the host shell corresponding to the operating area; the portable computer is characterized in that a storage shell with a storage cavity is arranged on the host shell, a spring connecting wire is arranged inside the storage shell, the electrolytic device can be detachably fixed on a placement area of the host shell, one end of the spring connecting wire is fixed in the storage shell and electrically connected with the digital display circuit board, and the other end of the spring connecting wire extends out of the storage shell and electrically connected with the electrolytic device.

2. The split cleaning purifier of claim 1, wherein the electrolysis device comprises an electrolysis housing, a control circuit board, a mesh enclosure and an electrolysis assembly, the control circuit board, the mesh enclosure and the electrolysis assembly are disposed in the electrolysis housing, the electrolysis assembly comprises two identical sets of a first electrode plate set and a second electrode plate set, the first electrode plate set and the second electrode plate set are disposed in a staggered manner, each set of the first electrode plate set and the second electrode plate set comprises a pin portion and a connecting portion, one side of the connecting portion, which faces away from the pin portion, is connected with an arc-shaped sheet electrode plate, a clamping groove for clamping the sheet electrode plate is disposed in the mesh enclosure, the first electrode plate set and the second electrode set are electrically connected with the control circuit board through a first conductive screw and a second conductive screw, respectively, and the other end of the spring connecting wire is electrically connected with the control circuit board through a conductive screw.

3. The split cleaning and purifying device according to claim 2, wherein the electrolytic device further comprises a first conductive connecting nut and a second conductive connecting nut, the pin portions of the first electrode plate set and the second electrode plate set are respectively provided with a first connecting hole adapted to the first conductive connecting nut and a second connecting hole adapted to the second conductive connecting nut, the mesh enclosure is provided with a first avoiding hole and a second avoiding hole corresponding to the first connecting hole and the second connecting hole, one end of the first conductive connecting nut sequentially passes through the first connecting hole and the first avoiding hole and then is in threaded connection with one end of the first conductive screw, the nut of the first conductive connecting nut abuts against the lower end surface of the pin portion of the first electrode plate set, the other end of the first conductive screw is in threaded connection with the control circuit board, and one end of the second conductive connecting nut sequentially passes through the second connecting hole and the second avoiding hole and then is in threaded connection with the second conductive screw One end of the nail is in threaded connection, a nut of the second conductive connecting nut abuts against the lower end face of the pin part of the second electrode plate group, and the other end of the second conductive screw is in threaded connection with the control circuit board.

4. The split cleaning purifier of claim 2, wherein the electrolytic housing is of an arc structure, one end of the electrolytic housing is detachably connected with a right decorative cover, the other end of the electrolytic housing is fixedly connected with a left decorative cover, the left decorative cover and the right decorative cover are respectively provided with a plurality of strip-shaped holes, the plurality of strip-shaped holes are arranged in an annular array, and the left decorative cover is provided with an opening through which the spring connecting wire penetrates into the electrolytic housing.

5. The split cleaning purifier of claim 2, wherein the electrolysis device further comprises an atmosphere lamp disposed in the electrolysis housing, and the atmosphere lamp is electrically connected to the control circuit board.

6. The split cleaning and purifying device of claim 2, wherein the electrolysis device further comprises a weight disposed in the electrolysis housing.

7. The split-type cleaning purifier as claimed in claim 1, wherein a first magnetic member is disposed inside the main housing corresponding to the placement area, and the electrolysis device has a second magnetic member, and the second magnetic member and the first magnetic member attract each other to fix the electrolysis device on the placement area.

8. The split cleaning purifier of claim 1, wherein the operation display panel comprises an operation display module and a character display film, an annular groove is formed on the surface of the operation display module, a solder leg through hole penetrating towards the bottom surface of the operation display module is formed in the bottom of the annular groove, a touch spring is arranged in the annular groove, the top end of the touch spring is higher than the surface of the operation display module, a solder leg of the touch spring penetrates through the solder leg through hole to be connected with the digital display circuit board, and the character display film is attached to the surface of the operation display module.

9. The split cleaning purifier as claimed in claim 2, wherein the receiving housing comprises a receiving bottom shell and a receiving front shell connected by a snap-fit manner, the receiving bottom shell is fixedly connected with the main housing, the receiving bottom shell is provided with a wire through hole, the main housing is provided with a passage for allowing a spring connecting wire to enter the inside of the main housing, the receiving housing is provided with an opening butted with the electrolytic housing, and the other end of the spring connecting wire extends out of the opening.

10. The split-type cleaning purifier of claim 2, wherein the main housing is of a circular structure, the electrolysis housing and the receiving housing are of arc structures, and the electrolysis housing and the receiving housing are combined to form a circular ring.